darkoshi: (Default)
For the last 3 days, I've seen the crescent moon in the sky during the late morning.

2017/08/16, 10:16am EDT:


2017/08/17, 8:43am EDT:


(On 2017/08/18, I saw the moon around 10:30am, but didn't think of taking a photo.)

But I have been unable to find the moon in the sky around 2:30pm (during my lunch breaks). I've been wondering why I can't find it in the afternoon.

(No wonder I've never paid much attention to the path of the moon in the sky. At night, I'm usually inside or asleep. In the daytime, even when the moon is in the sky, it's hard to see.)

On all 3 days, it's been partly cloudy, with today being the least cloudy. So it's possible the moon was behind a cloud. But as much as I've searched the sky, it seems unlikely it's *always* been behind a cloud.


As of today (2017/08/18) at my location, per the NOAA solar calculator (Find Sunrise, Sunset, Solar Noon and Solar Position for Any Place on Earth), solar noon is around 1:30pm. So at 2:30pm, the sun is still fairly high overhead.

On 8/16, it was 5 days before new moon and the eclipse, so the moon would have been about 5 * 13 = 65 degrees away from the sun. So that was most likely too near the horizon for me to see, as there are some trees and buildings around.

On 8/17, the moon would have been 4 * 13 = 52 degrees away from the sun. I think I should have been able to see it at that angle.

Today on 8/18, the moon would have been 3 * 13 = 39 degrees away from the sun. Surely I should have been able to see it at that angle.

The closer we get to the new moon, the thinner the crescent is. So the harder it is to see. It is hard to find a tiny arc of white in a light blue sky, and even more so when there are distracting white clouds around. But is that the only reason I haven't found it?

Per this page: Finding the Moon, crescent moons are "not observable" except right before sunset or after dawn. But I've seen it at 10:30am which isn't right after dawn. So I think it would be more accurate to say "not easily observable".

If I can see it at 10:30am when the sun is already bright in the sky, why shouldn't I be able to see it at 2:30pm?

I got to wondering whether how I think of the angles in the sky is wrong. I am thinking of 45 degrees as being the distance from straight overhead to a point halfway to the horizon. But the 13 degrees that the moon moves per day is in relation to the center of the earth, not to my spot on the surface of the earth. Therefore, is how I'm visualizing the angles in the sky wrong?



When the moon orbits 45 degrees around the earth, is that a much greater distance than the distance I see from overhead to halfway to the horizon?

But... as can be seen in the diagram, the larger you draw the earth, the closer the 45 degrees gets to one's visible horizon, and it would eventually even pass below the horizon. Yet I've been able to see the moon in the mornings, and the distance between it and the sun hasn't seemed such a large angle. So surely the above diagram can't be right.

(Update #2, 2017/08/20: I've figured it out. The diagram is basically correct, but my assumption about the 45 degree line eventually passing below the horizon was wrong (just because I don't draw the horizon line to infinity, doesn't mean it doesn't go to infinity). If the angle to the moon as measured from the center of the earth is 45 degrees (from directly overhead), then the angle as measured from the surface of the earth would be more than 45 degrees. But because the distance to the moon is so large in comparison to the size of the earth, the angle is only slightly more. See follow-up post.)

On the same topic, I got to wondering how much of the sky / celestial sphere am I actually capable of observing from a point on the earth, at any moment in time. Ie. if I turn all the way around, looking towards the horizon, and up above me, how much of the sphere of the sky which surrounds the earth, am I seeing?

Based on the diagram, the amount of sky seen would not be half the sphere, as I've previously assumed. Yet again, the larger one draws the earth, the less of the sky one would seem to see. Surely that can't be right?

Based on these answers, it sounds like you should be able to see half of the sky at any time. But I don't understand the formulas and calculations listed.


Update (afternoon of 2017/08/19):

Today, the morning of 8/19, around 7:40am and again at 10:20am, I wasn't able to find the moon in the sky, even though it was clear with no clouds. So as of 2 days before new moon, the crescent must be too small and faint to see in the daytime. Perhaps a clear sky being so much brighter than a partially cloudy sky, also makes it harder to see.

MoonCalc.org - shows you the current position of the moon in the sky, and moonrise/moonset directions, for any position you select on the map.

Sun Locator Lite - a free app which lets you find the sun and moon by pointing the phone at the sky (as long as the phone has an internal compass/magnetometer - mine doesn't, but Qiao's does). The Pro version lets you get information for any day and time of the year.

Today, 2 days before the eclipse, the moon should be about 2 * 13 = 26 degrees from the sun. I used the above Sun Locator app to find the position of the moon and compare it to the sun's position, and estimated the angle between them. If anything, it seemed less than 26 degrees, not more. So that indicates that there's something wrong with my thinking in terms of the above diagram. But where have I gone wrong? I still haven't figured that out.
(And even with the app to show me its exact location, I still can't see the crescent moon in the afternoon sky.)

But I did have an epiphany on how much of the sky is visible from a point on earth at a single moment in time. It depends on what I'm calling the "sky". I think of the sky as a sphere centered around the earth, upon which I see moon, sun, stars, clouds, etc. But there are many such possible spheres around the earth, different distances from the center of the earth.

How much of the sky is seen depends on which of those spheres one considers. If one considers a sphere which is say, 10 kilometers above sea level, you can calculate the surface area of that sphere. The earth's diameter is 12,742 km. So the sphere's diameter would be 12,752 km, its radius (r) would be 6376 km, and it's surface area would be 4*pi*r^2.

[ another interesting thought... For an infinitely thin sphere, the size of the inside and outside surface areas should be the same, right? But how can that be? I can't visualize them being the same size. ]

Imagine that we cut a small slice, 10 km deep, from the top of that sphere. We can then calculate the surface area of that slice (with some formula, which I would have to look up.) That would tell us how much of the whole sphere we can see at a single moment, and it would be a fairly small portion.

But now, consider a sky-sphere with a much larger radius of 5 light-years - reaching the nearest stars - or even larger. At such distances, the diameter of the earth is minute in comparison - it can be considered negligible. A plane which touches the surface of the earth at one point is practically the same as another parallel plane which intersects both the center of the earth and the sphere. Either way, half of the sphere is above the plane, and half below. So the person can see half of that sky-sphere.

Now, what about a sphere with radius of 150 million km (about the distance from the earth to the sun)? In comparison to that distance, the earth's diameter is roughly 0.01%.* So again, it's basically negligible, and we can see practically half of the sphere at any moment in time.

..

Other interesting tidbits:

How far away is the horizon? Short answer: About 4 to 5 kilometers away, at standing eye-level for an average-height adult.

I see the moon: introducing our nearest neighbour - has several good diagrams/images.
Per this page, the moon's orbital plane is tilted 5 degrees from the ecliptic. That's not as much as I imagined. But when you add in the 23.5 angle of the earth's axis, the moon can orbit up to 29 degrees above or below the earth's equator.

Lunar Orbital Libration
Libration definition: "a real or apparent oscillatory motion, especially of the moon."

Altitude and Azimuth

* A lot of these numbers are rough calculations I've done, and they may have errors. Please don't rely on any numbers I've posted, without verifying them. If you find an error, please let me know so that I can correct it.
darkoshi: (Default)
I thought of an easier way to explain why the eclipse shadow travels west to east, even though the moon travels east to west through the sky.

First, here's the general picture from the perspective of the sun, when looking down at the solar plane from above:
The earth revolves around the sun in a counter-clockwise direction, completing a full circuit about every 365 days.
The moon revolves around the earth in a counter-clockwise direction, completing a full circuit about every 28 days.
The earth rotates around its own axis in a counter-clockwise direction, completing a full turn every 24 hours.

Here's the general picture from the perspective of a spot on the earth at the equator, when looking up at the sky:
The sun revolves around the earth in an east to west direction, completing a full circuit every 24 hours.
The moon revolves around the earth in an east to west direction, completing a full circuit about every 24.5 hours (I hope I calcuated that right)

Now to explain why the solar eclipse shadow goes west to east:

Imagine you are standing on the north side of an east-west street, facing south.
The moon is a person walking on that street from east to west.
The sun is another person walking on that street from east to west, except that they are walking slightly faster than the moon, and emitting a bright light.


When the sun is still a fair bit behind the moon, the shadow that is cast from the moon due to the sun's light will point towards the west.
As the sun starts overtaking the moon, walking behind the moon compared to the observer, the shadow that is cast points towards west-northwest.
As the sun continues passing behind the moon, that shadow changes direction, towards to the northwest, then north, then northeast, then east-northeast.
So even though both the sun and moon are going east-to-west, the shadow goes west-to-east.

Maybe that is totally obvious to other people? I mean, it seems pretty obvious to myself now that I've explained it.

.

It's actually more complicated than that, of course.

The sun's path does go from east to west rather consistently, even though during the summer, the path is higher in the sky (northeast -> northwest) than during winter (southeast -> southwest).

But the moon's path is more dynamic, as it doesn't revolve in the plane of the equator. It may rise in the southeast and set in the northwest. Or it may rise in the northeast and set in the southwest. (right? I haven't ever really paid much attention to the moon's path, but I must have learned that somewhere.)

Because of that, based on the images I've seen, instead of the moon crossing the sun from right to left, during this eclipse, it will cross it from lower right towards the upper left.

So in the above example, the moon would be on a different street, at an angle to the other street, and the streets would happen to cross each other right at the point where the sun was walking behind the moon.
(although what angles the streets need to be at, and which direction the moon is going on its own street is a bit difficult for me to visualize right now.)
..

I guess it's time to create a new eclipse tag for all these entries, and to rename the eclipse tag I used on a single other post in reference to the software called "Eclipse".
darkoshi: (Default)
The local news mentioned that the downtown population could double to a million people, from all the people coming here for the total eclipse. And that cell phone service may be affected, due to bandwidth problems from all the extra people. That's something that wouldn't have occurred to me. They advise people to text instead of calling, to save bandwidth.

.

One thing I'm curious about is whether during totality, it will be dark like during the middle of night, or only somewhat dark like when the sun has just dipped below the horizon at dusk, or if it won't even be as dark as that.

I could look it up. But that would be like watching spoilers :-)

I wonder if the street lights will come on.

I wonder how many people will be driving vehicles during totality. I wonder how many people have to work and won't even have an opportunity to go outside to look. I wonder if store employees will have to stay inside. I wonder if people are going to be shopping instead of watching it. I wonder if employees and even managers are simply going to abandon their posts for a few minutes, in order to experience this once in a lifetime event. I wonder if surgeries and doctor's appointments have been scheduled during totality. I wonder if some people just don't care about it. I wonder if some people think it's too hot to go outside just to look at the sky.

I wonder if it will be raining... :-(
As of now the forecast indicates a clear morning, then partly cloudy til 2pm, then a 50% chance of thunderstorms. Totality here is at 2:42pm.

.

This morning I looked in the sky and found the moon in the general area I expected it to be. This afternoon during my lunch break, I looked and wasn't able to find it again. I wonder if the sky is just so bright during midday that a crescent moon is very faint and hard to see. Or whether it was hiding behind one of the clouds.

.

Aaaannnnd I just noticed that I wrote "left to right" a couple times in my prior post, when I meant "right to left". As if it wasn't confusing enough without me flubbing the words too. I fixed it now.

.

Hah. I found another reason it's good I decided to work from home on Monday. At my home, totality will last 20 seconds longer than it will at my work, because my workplace is further from the center line.
darkoshi: (Default)
This morning, I started wondering why the eclipse will be seen on the west coast before it is seen on the east coast.

I know that the earth spins counter-clockwise (towards the east) when looking at it from above the north pole. And that the moon travels around the earth in the same counter-clockwise direction. And that the earth spins relatively faster. It does a complete rotation (360 degrees) in 24 hours, whereas the moon only travels 1/28th of the way around the earth (360 / 28 ~= 13 degrees) during that time.

So how can the moon's shadow travel from west to east? Isn't the earth spinning into the shadow and out of it in a clockwise west to east direction (the same as it always spins), and so the shadow should appear to move from east to west, just like the moon appears to do in the sky?

According to the answer on PhysLink.com, it has something to do with the moon's orbital velocity being greater than the earth's. But according to this orbital velocity formula, it seems that anything closer to the earth (ie. the earth's surface) would have a greater orbital velocity than something further away (ie. the moon). So that answer seems to be wrong or badly worded, maybe. Of course, if we simply consider velocity, the moon does travel a further distance through space than the earth's surface does, in the same amount of time. But what does that have to do with the eclipse? If it were a race, the earth would still win, rotating faster than the moon revolves.

Here's another page (cached, as the original eclipse2017.org page isn't responding - the website must be swamped) that tries to answer the question. Some of the commenters on that page seem to have the same confusion as I do.

Here's another page (Washington Post) that tries to explain it. Again talking about the speed of the moon compared to the earth.

Watching the various NASA visualizations didn't explain it well to me, because of how the videos keep shifting perspectives. Even in this animation, it looks like the sun must be moving from behind the viewer, to make the shadow move like that.

I think I may finally sort of understand it, but my explanation doesn't match any of the answers I read. So it's probably wrong. But... as the moon moves across the sun from right to left (as seen from the earth while facing south), it's shadow as seen from the earth changes direction. First it points towards the west, then straight, then towards the east.
And while the moon itself, from the earth's perspective, doesn't move far in the sky (and due to the earth's rotation, even appears to be going to the west*), it's shadow moves much faster... that must be why the answers keep mentioning the speed of the moon.. they must be trying to say that the speed of the moon's shadow across the face of the earth matches the moon's speed in space. I suppose that is logical, even though it isn't very intuitive to me**.

* But the sun appears to move to the west faster than the moon, so the moon does still cross the sun from right to left, even though they are both moving to the west.

So the moon's shadow moves quickly from the west to the east.

Right? Maybe? Sort of?

** Because the moon doesn't move in a straight line, but rather circles the earth. And those x-thousand miles per hour it moves up in space only correspond to y-hundred miles down on the earth... Oh jeez, now I'll start doubting my above explanation again...

Ok, thinking about it more. The shadow moves west to east like I explained above, because the moon crosses the sun from west to east. The speed of the moon through space around the earth affects the speed of the shadow, but it's not a direct x = y equation. The faster the moon moves across the face of the sun, the faster the shadow sweeps across the land from west to east. Since the shadow is sweeping through an arc (sort of), the far end of the shadow will pass a different distance during that time, depending from how far away you measure it... which for us is based on the distance between the moon and earth. So the speed of the shadow depends on that distance, and on the speed of the moon's revolution, and on the speed of the earth's rotation, and the size of the earth, etc. And it is complicated more because the moon moves in an elliptical orbit, not just straight past the sun, etc.

Now it makes sense to me. If I'm wrong, feel free to tell me which of my logic is wrong.

.

On a related topic, how long will totality last, across the U.S.? It will start on the west coast around 10:17am (1:17pm eastern time). It will end on the east coast around 2:48pm (eastern time). So for one and a half hours, the shadow will sweep across the country, from coast to coast.

Within that time period, based on the 3 to 4 hour time difference between the coasts, the earth only rotates about half the same distance.

But actually, the earth and the shadow are moving in the same direction... so if the earth weren't turning, the shadow would traverse the distance even faster.

2017/08/16 Corrected some words above. I was mixing up the words "right" and "left", even though I was visualizing it correctly. I'm used to thinking of the west coast as on the left side and the east coast on the right side. For the above, my perspective is from the center of the county looking south. So the west coast is on the right, not the left.
Although since the sun will be pretty high overhead during the eclipse, "left" and "right" aren't good words to use to begin with.
darkoshi: (Default)
I bought some eclipse sunglasses on Tuesday. Seems like I did it in the nick of time, as they are becoming scarce around here. I got some cheap cardboard ones, and some slightly less cheap 2x magnification cardboard ones (I ordered the latter from Best Buy in the morning, and picked them up after work. When I checked the website in the evening again, they were sold out.) The glasses are neat! You can look at the midday sun while it's high in the sky! What you see is a nice orange disk. That may not sound special, but it's neat to be able to look straight at the sun without it being sunrise or sunset. I'm not sure I could see any sunspots or flares with these glasses, but they should be fine for watching the eclipse. As long as we are lucky and have clear skies. The forecast isn't looking good so far... a 50 to 60% chance of thunderstorms all day on the 21st till 8pm. But things may change, and even with thunderstorms, there might be a break in the clouds. (please, pretty please, at least during totality, please?)

I've been debating whether to work from home that day, or go in to work like usual and take my lunch break during the total eclipse. Now I think I'll work from home... that way I can occasionally check what is broadcast from the other parts of the country that experience the eclipse before we do.

I replaced the pull-chain light switch for the light fixture on Qiao's ceiling fan with a 3-way pull switch. Now we can turn on either 2 or all 4 lights, where before you could only turn on all 4 at once. Now while sitting on the sofa, we can turn on only the 2 lights which face towards the other direction, so that the room isn't uncomfortably dark, but without as much glare from above as before. When we want more light, we can turn them all on. Previously, I had replaced the lamp shades and bulbs, but it was still too bright for me.

One of the metal spines on my umbrella broke. I can't think of any simple way to fix it. It's a fairly new umbrella which my neighbors gave me recently, as thanks for looking after their dogs while they were on a trip. A nice lime-green color with reflective edging. I can't bear to throw it away. I couldn't even bear to throw away my old umbrella yet.. On it, the fabric had worn out and had holes. I cut the fabric off that one, and still have the metal umbrella skeleton. It's pretty useless, slightly dangerous, but looks neat in a goth-steampunk kind of way.

My dad has been researching his side of the family tree. It's amazing what you can find in old census records. This FamilySearch website is run by the LDS church, and lets you search records for free. There's an 1885 census from the state of Nebraska, with an entry for my grandpa's father and grandfather. We also found 1870 and 1880 census records which seem to match, but there are some discrepancies which we haven't been able to explain yet. We found that the Nebraska Historical Society has microfilms of church records from the area my grandpa's grandpa lived. Those records don't seem to be online anywhere. My dad contacted them, and they have a volunteer who will check the microfilms for us, even translating from Latin! How nice is that?

total solar eclipse!

Thursday, June 22nd, 2017 08:27 am
darkoshi: (Default)
The path of the total solar eclipse that will happen on August 21 includes Columbia, SC, where I live!

The total eclipse path in SC also includes Greenville and Charleston, two of the other largest cities/towns in the state.

This NASA map shows more details, and the area that will get a 90% eclipse is pretty big. I imagine 90% will be pretty stunning to see, too. But it may not be, because we had a partial eclipse before which was nearly unnoticeable. A small amount of sun is still very bright.

I hope it won't be cloudy here on that day.
darkoshi: (Default)
Yesterday after work, I drove to Congaree Park with my mom. From the status updates posted by the park, the peak firefly activity might have already been over. But even if so, I thought it would still be neat to be in a wilderness area after nightfall. Most other parks around here close at dusk. The forecast was for clear skies, so maybe there would also be a nice starry sky - here in town there is too much ambient light to see more than the brightest ones.

I looked up directions on how to drive there. I found that the Google Maps app has an option for downloading a zoomable map of a selected area. You can download maps of where you are planning to go using WiFi, and later on use them to navigate with GPS, without using any cellular data.

But my car also has a built-in navigator. So once I reached the outskirts of town, I turned it on and entered the address. I just wanted to be sure that I didn't miss the turn-off way down on Bluff Road. The expected route displayed on the screen, but once I started driving, it told me to turn right when I was certain that I should turn left. I stopped to verify on Google Maps that my memory was correct. Then I turned left and drove on. It started nagging "Turn left... recalculating", "Turn left ... recalculating", "Make a U-turn!" and so on and so on. I have no idea where it was trying to take me to. I wanted to turn it off, but neither my mom nor I could figure out how. Finally, after parking the car again and pressing a bunch of things on the screen, I turned it off.

The park's website had said that only flashlights with red filters or covers should be used, to avoid disturbing the fireflies. I happened to have a flashlight, plus a small BugLit flashlight, plus a headlamp, all with red LEDs. As my mom was coming too, I also brought 2 other flashlights, with red/pink cellophane covering the lights. But they weren't necessary. I only needed a flashlight on the way out. My mom only used the BugLit. The ones with the cellophane covers were still really way too bright anyway.

The parking lot was full already at the park, so I parked behind another car on the side of the road. It was already dusk. On the boardwalk, we walked past a lot of other people. We finally stopped at what seemed a good spot. (Beset by thoughts of "Maybe there are more fireflies further down. Or maybe there are fewer. Maybe that would only take us closer to that crying baby.") There were a lot of people noises. In the beginning, people were also constantly walking past behind us in both directions. Later on, much of that subsided and it was more peaceful. Surely there are places in the park where one could see fireflies too, without the crowds of people. But you'd need to be familiar with the park to know where to go.

There were a lot of fireflies, but not as many as I had hopefully envisioned. The peak activity must already be past. I didn't notice much synchronicity going on, although there were moments when a small group of them would flash at nearly the same time, and then go dark, and then do that again a few times. But there were also other fireflies around them doing their own thing, so it wasn't very obvious. The status posted by the park today said "Fireflies were again active last night (Friday, May 26). Visitors reported that separate groups of fireflies were synchronized (as opposed to all of them being synchronized together)." Maybe it was more obvious in other spots, than where we were standing.

When I see fireflies in my yard, the color of their flash is bright yellow. But the flash of the ones in the park was more white, like moonlight. (Maybe that was only because they were further away - the ones that were closer did have more color). But that white light made them look like twinkling stars in amongst the trees. Very magical. Twinkling moving stars. The kind of thing which might make you believe in fairies. In the moments when people were being quiet, you could hear the nighttime insect noises all around. There were occasional owl (I assume) calls. (Not hoot-hoot sounds. Though now checking YouTube for owl calls, it didn't sound like those, so maybe they weren't owls after all.)

We stayed after most other people had left. It was nicer then, without all the distractions, even though the twinkling fireflies seemed fainter by then, more misty and dreamlike. As we were on the way out, a few other people arrived. Perhaps they wanted to avoid the crowds too.

Other than the fireflies and the flashlights of people walking by, at ground-level it was quite dark. But looking up, you could see the sky a lighter blue between the dark outlines of trees. Even when we left, around 11pm, the sky still was that color. Not pitch black pierced by white stars, as I'd expect. Although the stars themselves were plentiful and beautiful. Does the night sky never really get black, even in the countryside? The moon was almost new, so the light wasn't from it. Maybe it was still ambient light from town; the park is only about half an hour away. Or do the stars always make the night sky seem a lighter color?

On the way out, I stopped at another small parking lot to get a better view of the sky. It was beautiful. I wasn't able to see the milky way (would it be overhead? I don't even know where to look). I think there was a pond nearby, but it was too dark to tell. There were some weird animal noises coming from the other side. I have no idea what it was. My mom guessed it might be a male deer. Maybe, based on this - the sound was sort of like that, though it's hard to remember now.

eclecticity

Wednesday, April 12th, 2017 11:14 pm
darkoshi: (Default)
Putting silicone sealer on the mouse wheel to add traction had very good results, even though it didn't go on very smoothly.

Actually, it's an acrylic sealer. I previously had a silicone-based one, but when it ran out, the store no longer had it, so I got the acrylic one, which was listed as non-toxic and low odor.

Today it occurred to me that: 1) The insects are spelled 'beetles', 2) the cars are spelled 'beetles', 3) but the band is spelled 'beatles' 4) because the music has beats. It's a word-play, and it's possibly the first time I recognized it as such. I guess I always just thought they named themselves after the insects or maybe the cars.

The fig tree is growing little fig leafs again! The young leaves that died earlier haven't fallen off yet.

Just as I had driven up to my driveway this evening, I looked left out of the car window and saw a light moving across the sky in a straight line. In a direction from the south towards the southeast, sort of. Just a single white light, small, not blinking. It wasn't moving very fast, nor slow. The light flickered out for a moment, then came back, still moving, then flickered out again and stayed out. I thought it might have been a meteor, but the Lyrid meteor shower isn't supposed to start until the 16th. And my visibility here is poor. So it was probably a plane after all, maybe disappearing behind some clouds.

I like this song & video:

Video title: Space Unicorn - Parry Gripp and Brianne Drouhard
Posted by: ParryGripp
URL: https://www.youtube.com/watch?v=17o1OlroNSE



And these songs:


Video title: Imagine Dragons - Believer
Posted by: ImagineDragonsVEVO
URL: https://www.youtube.com/watch?v=7wtfhZwyrcc




Video title: Wardruna - Wunjo (New Album Runaljod - Ragnarok)
Posted by: Tatiane Akemy Oshiro
URL: https://www.youtube.com/watch?v=heDBX-HCMDA
darkoshi: (Default)
My mom called to tell me that she heard that Jupiter is bright tonight - at opposition - and that it might even be possible to see its moons using binoculars. I thought, fat chance of that for me, but I went and looked. First I had to figure out how to adjust the focus on the binoculars; it's been a long time since I used them, and I was turning the diopter adjustment by mistake. Then, when I was looking at Jupiter, I did see another fainter object to the west-south-west (ie, left-bottom-left) of it, about 8 Jupiter-widths away. Could that be a moon? Based on this diagram, it's probably the star Theta Virginis.

Tonight, I kept having a problem with the binoculars, seeing double. I'm not sure if it is an issue with them or my eyes. To begin with, it wasn't double. Then, when it was, every once in a while, the double vision went away.

Since the moon is almost full, I looked at it through the binoculars too. Wow! Maybe I've never looked at it through binoculars before? That is the clearest I've ever seen the moon, that I can recall. The craters and lines/rays and texture/contours (towards the bottom) are visible, and even a crater sticking out on the left edge between light and dark.

Curiosity rover shows new signs of wheel wear - it's still sending back photos from Mars!? Wow, I didn't realize we still had contact with it.

By the way, it's weird that the moon always looks black & white / grayscale, when the rest of the universe is in color.

(no subject)

Wednesday, February 20th, 2008 09:27 pm
darkoshi: (Default)
Wow. Forestfen just called me and said she noticed a lunar eclipse was happening, even without having heard about it on the news or anything. And she's right.

(no subject)

Thursday, January 3rd, 2008 11:52 am
darkoshi: (Default)
Quadrantid meteor shower tonight - best viewable from western Europe and the Eastern U.S./Canada.

This page has a sky-chart of the radiant location.

It's going to be vewwy vewwy cold here tonight though, not sure if I will venture outdoors long to peek at the sky.

hair milestone

Monday, November 19th, 2007 12:18 am
darkoshi: (Default)
Today was the first day since I started growing my bangs out that my hair felt comfortable enough not to have to pin it back out of my face. In other words, it wasn't scratching my eyeballs or tickling my nose.

It sure is nice to be able to pull shirts over my head again, without it messing up the pins in my hair. And it looks much better without the pins.



.

I can see the sun as it rises from the yellow room window.

(The sun below the horizon is a window reflection.)
It is surprising how fast the sun rises - on the day I took the above photo, the sun was only halfway over the horizon when I first looked out the window, and that is what I wanted to capture. But in the minute or so that it took me to get my camera from the other room, it had already risen all the way over the horizon, as can be seen in the photo.

I will take a photo every week or so until the solstice, so I can see how the sun moves along the horizon, and what the southernmost sunrise point is... Maybe I'll try to figure out where it should rise on the solstice, based on this data, and then see if I'm right or not.

(no subject)

Thursday, October 25th, 2007 09:15 pm
darkoshi: (Default)
I noticed that one of the quarters I have is dated 1972. It is as old as I am. I wonder where it has been in its lifetime, what many places it has travelled to and from, how many pockets and purses and cash-registers it has been in, how many hands it has touched.

Light from the setting sun was giving things a golden tinge as I got out of my car in a store's parking lot this evening. Then I looked at the sky, and saw a wonderful rainbow appearing - a full semi-circle, from close to the horizon on one side, to behind the store building on the other. There were dark clouds in the sky in that direction. It had been sprinkling while I was driving, but had stopped. There was even a faint 2nd rainbow, too.

(no subject)

Tuesday, August 28th, 2007 06:39 pm
darkoshi: (Default)
Someone at a neighboring house started blasting music this morning around 2:45am, awakening me and keeping me from falling back asleep for at least half an hour. But the thing is, I really liked the music. It was in Spanish, and dancy, and neat-sounding. I might buy it for myself if I knew what artist/CD it was. So I lay there in bed, slightly annoyed but also choosing to simply take pleasure in it.

This morning I heard that there had been a lunar eclipse, and wondered if perhaps my neighbors had been having a lunar-eclipse-party?! Perhaps they were celebrating while the earth's shadow crossed the moon's disk? So I looked up the time of the eclipse, but they were a couple of hours too early for that.

.

I wonder how much of my gender identity has been influenced by the book-reading I did as a kid. Many of the books I read had male protagonists. Yet many of those books' authors were female. Therefore, perhaps the male characters whose personalities I identified with, weren't exactly masculine in a real-life sense, as they were written from an arguably feminine perspective. And perhaps that gave me somewhat of a not-quite-feminine, not-quite-masculine gender identity myself?

(no subject)

Wednesday, June 27th, 2007 08:15 pm
darkoshi: (Default)
I can hear my neighbors having an argument from my bedroom. Sounds like they are both tired and irritable.

I will have to call a different electrician up. If the other guy doesn't want my business bad enough to even call me back with the estimate like he said he would, he won't get it.

Maybe I should do some of the work myself. I've grounded an outlet before. I guess I could do as good a job as they would do, perhaps. I can put the pull-switch on the kitchen light myself, so I guess I'll do that part myself at least. I just want the wiring done right. But there's no guarantee that anyone I hire would do it right. They might do as amateur a job as me.

Oh dear, now I can hear them from this room too. She is shouting. He wants her leave him alone while he finishes the yardwork.

I have to decide on a washer and dryer. I need to fix the floor in the washer/dryer area first, because the linoleum is torn. Or should I just leave it torn? I don't want to. But I don't want to buy a vinyl floor product. And I don't want to deal with adhesives. And tile is complicated too. Why is it all so complicated???

Maybe I will need to hire a plumber to replace all the shut-off valves, so I can at least turn them.

I've felt vaguely moody, like crying. I notice it mostly at work... then I finally come home and don't find the time to relax and cry.

Oh, look. The moon.

I was wondering, what is more important in a romantic relationship. Feeling comforted by the other person's presence, or feeling excited?

Tired. Hungry. Should go cry. Should go eat. Should go do pushups.

I was going to go jogging yesterday, but then didn't feel like it. I just sat instead.
I was considering going jogging today, but didn't feel like it. I walked a bit instead.

Should go install locked handle on bedroom door.

Maybe I should just put some thick plastic on the floor, and some of the big leftover tiles over that, without any adhesive or grout. Or maybe I should just tape shut the torn part of the linoleum, and put the tiles over it. Even though they won't fit right in the space. Would need to cut them to size. That would be difficult.