Starship Asterisk*

Well, maybe not *quite* so orange, but definitely warm colored. Yes, I understand that things have been done to the image to make it more brightly colored. Some time ago I took two photos - one before a hurricane and one after (when the power infrastructure had been knocked out). What a world of dif...

Any amature astronomer can clearly see this photo shows sun from the lower left It's a really, REALLY good optical illusion. I started out thinking as you do, but read my posts above, and if you've got the bandwidth download the big "strip" image. It becomes pretty obvious which direction...

Chris Peterson wrote:should be apparent with the light-pollution illuminated clouds, which most people see all the time.

Heh, I live in Bortle level 1 light pollution. Clouds really DO look that bright here. Only reason we're level 1 is that there's not a level 0.

-Noel

As one who has never personally seen this phenomenon, I can only say I would be dumbstruck if I were to look up and see something like that. It would be especially disconcerting that it seems to be centered on a position straight up from the observer's viewpoint. The caption mentions "severe ge...

For example, if one forces oneself to think that the light is coming from the upper-right in this image, and further if we surmise that we're looking at a chasm with fairly steep walls, the silhouette of what appears to be a shadow on the chasm floor does seem to match the edge of the plain above......

Heh, you turned the image around so I could be right - thanks. :) I've been studying the shadows at the edges of these things for quite a while now (while waiting on hold on a phone call), and I haven't been able to find it possible to make my mind believe that these are pits. For one thing, it's FA...

The light is definitely coming from the left. Your military left? EDIT: Bah, no more than I was sure I took another look and now it's not so clear... Looking over one of the very long strips, when I pan over to the mountains, where there's no snow, the light looks to be coming from the right, but I...

Wow! Looking at the night side, extraterrestrial visitors might be forgiven for thinking there's a lot of volcanic activity on the planet. Significant things that caught my eyes: 1. The huge bank of thunderstorms offshore from Puerto Vallarta with all the lightning strikes a bit right of center at a...

Pits with raised edges then?

The light is definitely coming from the left.

-Noel

First, thanks very much to Neufer for the enhanced descriptions of what we're observing on the sun. So, NoelC, did you add the color so i could see what the picture description said, even though it wouldn't normally actually be visible that way? The reason the image is shown in grayscale is that the...

One can't even observe the photosphere in opaque Hα light. Not sure I agree with or understand what you're saying, Neufer... First off, isn't the photosphere of the sun a wideband light source? If so, it must certainly be emitting at least some light in the 656 nm wavelength. Secondly, what do you ...

but the image is grey. I don't mean to be picky, yes i do but grey is not any shade of red that i am aware of. Here you go, Beyond. This should help visualize the filter color used a bit better (you may have to refresh or click on this to see the animation)... http://Noel.ProDigitalSoftware.com/For...

Wow, something so particularly violent so as to be noticed on the surface of what is essentially a runaway nuclear reaction already... Impressive!

-Noel

Spectacular view, compositionally stunning and made even better by the silhouettes of the local flora. It's refreshing to know there are still dark places in the world, and this image brings the words "Island Paradise" to mind. My only nit to pick with this image is that the modifications ...

Simply beautiful!

I was also impressed with the time lapse video imagery from the ISS as it passed overhead, via the last link in the description.

-Noel

biddie67 wrote:I don't think that mathematical modeling could handle this adequately.

I imagine it could with a sufficiently advanced computer.

Give it ten or twenty years. A hundred million core Intel Xeon will eat it for lunch.

-Noel

There are a very large number of stars in this photograph that form definite strings. It that due to the time delayed photographic process, or do stars actually form in strings accross space? I'm always perceiving "strings" of stars in astroimages. I'm sure many times it's just a chance a...

Gotta love it when the stuff that's so dim others have trouble imaging it is so bright in this image that it's all but washed out.

I really, REALLY like alternate perspectives on things. The universe never ceases to provide more and more beauty.

Well done!

-Noel

Yeah, I wish I could afford an infrared space telescope too. :) I especially like the way we can see through the dust clouds that make up the shape of the Running Man silhouette (not seen in the APOD) to the star behind that's illuminating it all... This animation shows the APOD and a visible light ...

Not all viewers may be seeing the dim bubble-like structures around these galaxies, because not all monitors respond equally to darker pixels.

Here's a slightly lightened version to help people more easily see into the dark...
-Noel

I'm curious as to your opinion on my suggestion that there isn't as much vignetting in the Mars image as the composition makes it appear. It seems possible, at least to some extent, but the corrections I had to dial in to flatten the image (per the above animated image) were pretty extreme. I can h...

Here is an LX200 image of the Trapezium region I took about 5 years ago with my dSLR... Attachment:Trapezium_Region.jpg Maybe it's because of the FOV, but the red straight line really pops out, which I haven't noticed before. Thanks for sharing. You're welcome. Usually images of this area are more ...

Nice job, Jesús! A very pretty field, and you've controlled the very bright parts well, considering how deep you've gone around the edges. Personally, I like to see a hint of blue-green color right in the Trapezium area, but specific coloration isn't easy to nail down in astroimages. Boomer12k, keep...

I can find no way to get an f/12 aperture setting with that combination (I have the same camera and lens). F/11 or f/13 is as close as I can get. You did not save EXIF info in your image, so I can't see what focal length you used, but I will assume 28mm. Nor have you listed how you developed that im...

It has nothing to do with the camera or sensor. It is purely a function of the lens, and plenty of consumer lenses paired with DSLRs show this amount of illumination falloff I'm REALLY not interested in getting into an argument over semantics with you, so I will just say I'm not in agreement with t...