I'm quite puzzled by this picture; I'm not sure what it's illustrating.
Certainly not neutron stars, which have surface temperatures considerably higher than the surface of the sun, and thus would be glowing white, not reddish or brick colored or pink with blue splotches.
Search found 59 matches
- Mon Oct 16, 2017 1:50 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: On the Origin of Gold (2017 Oct 15)
- Replies: 12
- Views: 5359
- Mon Sep 18, 2017 1:35 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Bright Spiral Galaxy M81 (2017 Sep 17)
- Replies: 20
- Views: 6921
Re: Needs color information
Using the word "V band" to mean "visible light filter" is going to be confusing, and I suggest not doing it.
Probably somebody should have told the IEEE not to use the letter V as a radio band designator.
Probably somebody should have told the IEEE not to use the letter V as a radio band designator.
- Sun Sep 17, 2017 2:52 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Bright Spiral Galaxy M81 (2017 Sep 17)
- Replies: 20
- Views: 6921
Needs color information
Another image that really really needs color information. Clicking the link in the caption I get this: "This galaxy has been assembled using observations in the V band done by the Subaru Telescope (@ Hawaii) and frames from the Hubble Space Telescope both in 435nm and 814nm wide. RGB data from ...
- Mon Jul 24, 2017 1:52 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Hybrid Solar Eclipse over Kenya (2017 Jul 24)
- Replies: 11
- Views: 6276
But who is in the photo?
A great image, but I don't understand the caption. The caption states that the person being photographed in front of the eclipsed sun died a week before the eclipse he was photographed in front of. What am I missing here?
- Thu Jul 20, 2017 3:40 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ireson Hill on Mars (2017 Jul 19)
- Replies: 29
- Views: 7783
Re: I hate vertically stretched images.
ROFL.bystander wrote:It's not vertically stretched, it's horizontally compressed.
- Wed Jul 19, 2017 9:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ireson Hill on Mars (2017 Jul 19)
- Replies: 29
- Views: 7783
I hate vertically stretched images.
Really. This is not a feature on Mars.
- Mon Jul 10, 2017 3:11 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Spiral Galaxy NGC 1512: The Nuclear Ring (2017 Jul 10)
- Replies: 43
- Views: 29939
Spiral Galaxy NGC 1512: needs context
The explanation didn't make sense until I found the picture of the entire galaxy which this is part of. They should have posted that picture instead or posted a split screen with both. Absolutely agree-- without the context ( https://www.flickr.com/photos/geckzilla/30969093023/in/photostream/ ), th...
- Wed Jun 21, 2017 7:01 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Sundial that Shows Solstice (2017 Jun 21)
- Replies: 7
- Views: 2541
Re: APOD: A Sundial that Shows Solstice (2017 Jun 21)
Charming. The signature of the solstice, however, is that the sun has (temporarily) stopped changing position from day to day. So the sun is in pretty much the same position the few days before and the few days after. So it's hard to see that a sundial that reads "solstice" on the solstice...
- Thu Jun 08, 2017 6:02 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Firefall by Moonlight (2017 Jun 08)
- Replies: 18
- Views: 3073
Re: APOD: Firefall by Moonlight (2017 Jun 08)
I'm somewhat puzzled about this image. The sky reflected in the river (bottom left) is brighter than the unreflected sky. I can't quite figure that out.
- Mon May 22, 2017 2:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Zodiacal Sky over Horseshoe Bend (2017 May 22)
- Replies: 20
- Views: 5096
Low tolerance for photocomposite
It's a pretty one, but it has moved beyond my tolerance for photocomposites. The zodiacal light is so extraordinarily faint, there is just no possible way you could see that well-lit view of the lake and cliffs and still see the zodiacal light. This is no longer a case of contrast enhancing; it's re...
- Sun Dec 04, 2016 2:03 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Orion and Official Star Names (2016 Dec 04)
- Replies: 62
- Views: 11645
What color?
Come on, really. Orion DOES NOT LOOK LIKE THAT.
Please put in the captions SOMEWHERE what the colors mean.
Please put in the captions SOMEWHERE what the colors mean.
- Fri Nov 25, 2016 7:10 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Apollo 17 VIP Site Anaglyph (2016 Nov 25)
- Replies: 19
- Views: 3932
Tracks
I look at both sets of photos, but I don't see any tire tracks. The Mars rovers leave tracks easily discernible, so why none visible on the moon? Is the structure of the surface different in some way? I assume there is enough gravity to provide sufficient weight to leave impressions in the 'moon du...
- Fri Nov 25, 2016 7:05 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Apollo 17 VIP Site Anaglyph (2016 Nov 25)
- Replies: 19
- Views: 3932
Peculiar Anaglyph
That's a peculiar anaglyph. Usually the red and green images are left and right of each other.
- Mon Nov 07, 2016 7:20 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Inverted City Beneath Clouds (2016 Nov 07)
- Replies: 12
- Views: 2812
Re: APOD: Inverted City Beneath Clouds (2016 Nov 07)
I don't quite understand. "The long shadows it projected onto nearby Lake Michigan near sunset, however, when seen in reflection..." It doesn't seem to make sense to say we're looking at the reflection of the shadows (if these are shadows projected on the late, what is reflecting them?) Ar...
- Sun Oct 16, 2016 3:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Cylindrical Mountains on Venus (2016 Oct 16)
- Replies: 33
- Views: 5012
Re: APOD: Cylindrical Mountains on Venus (2016 Oct 16)
There are, I'm told, good reasons for vertical exaggeration, but I really wish that this would be explicitly called out when it is done.
- Tue Sep 06, 2016 11:05 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Whirlpool Galaxy and Beyond (2016 Sep 06)
- Replies: 24
- Views: 11984
Colors
It would be nice if APOD images had at least a little discussion of what the colors mean.
- Thu Feb 25, 2016 4:40 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Highest, Tallest, and Closest to the... (2016 Feb 25)
- Replies: 26
- Views: 15477
Closer to some...further from others (2016 Feb 25)
"That makes Chimborazo's summit the place on Earth's surface closest to the stars."
Indeed. Closer to some of the stars... further from others.
Indeed. Closer to some of the stars... further from others.
- Wed Jun 10, 2015 1:45 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Fly Over Dwarf Planet Ceres (2015 Jun 10)
- Replies: 43
- Views: 5934
Flyover of a Cartoon Ceres
I'll agree with the posters complaining about the vertical exaggeration. It makes it more dramatic... but this is not a "fly over of the Dwarf Planet Ceres". It's a fly over of a imaginary dwarf planet that's a caricature based on Ceres. --for years there used to be a parody organization c...
- Fri May 16, 2014 9:21 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Opportunity's Mars Analemma (2014 May 16)
- Replies: 36
- Views: 9120
Black sky
The caption is a little misleading. It's not that the martian sky is "blacked out" around the solar images; what you're seeing is that when we're pointing the camera directly at the sun, we use a neutral density solar filter, which is so dark that the sky comes out black.
- Thu Aug 15, 2013 1:23 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Moonset from Taiwan (2013 Aug 14)
- Replies: 21
- Views: 4162
Science and poetry [Re: APOD: Moonset from Taiwan]
can and do coexist-- http://www.astropoetica.com/-- but the signature aspect of poetry is to use language with precision.FloridaMike wrote: Gee whiz, science and poetry CAN coexist.
- Wed Aug 14, 2013 1:33 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Moonset from Taiwan (2013 Aug 14)
- Replies: 21
- Views: 4162
Re: APOD Moonset: A Tale of Three Worlds?
Beautiful image, but I don't think I'd describe the sun as a "world".
"Orb," perhaps.
"Orb," perhaps.
- Mon Jun 24, 2013 3:23 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Venus' Once Molten Surface (2013 Jun 23)
- Replies: 32
- Views: 4526
Again: VERY misleading image and caption
A very misleading image and caption, I'm afraid. I disagree. That it is a reconstructed radar image is clearly stated. It shouldn't need to say that reflected radio signals were arbitrarily mapped to an orange intensity map. If they had chosen greens instead of reds for APOD, as shown in the recolo...
- Sun Jun 23, 2013 5:28 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Venus' Once Molten Surface (2013 Jun 23)
- Replies: 32
- Views: 4526
Very misleading image and caption
A very misleading image and caption, I'm afraid. This is a radar image. The dramatic reds and yelows color it have nothing to do with the temperature, or that it is a "once molten" surface. (In fact, all of the rocky planets have a "once molten" surface.) The color in the image i...
- Mon Dec 03, 2012 3:00 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Quadruple Lunar Halo Over Spain (2012 Dec 03)
- Replies: 43
- Views: 19295
A Double Lunar Halo Over Spain
JohnD wrote:
I'll have to agree here-- I see a double halo, but if there are four halos in the image, I sure can't see them.Where are the other two?
- Mon May 14, 2012 8:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Virtual Flight Over Asteroid Vesta (2012 May 14)
- Replies: 24
- Views: 7979
Join the Flat Vesta Society!
Anybody else want to join the Flat Vesta Society?Last, Dawn images were digitally recast with exaggerated height to better reveal Vesta's 5-km high mountain Aricia Tholus.
Vertical exaggeration is cool... but if you want to know what Vesta looks like, that isn't it.