The Bridge: Discuss an Astronomy Picture of the Day • APOD: Facing NGC 1232...
So re NGC 1232, how many spiral arms? I have counted 5, 7, & 9. ????? :-OStatistics: Posted by Guest — Tue May 07, 2024 1:06 am — Replies 6 — Views 554
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The Observation Deck: Latest Sky Photography • Image explanation?
Hello everyoneA few weeks ago I was in Patagonia in Chile and I saw a very strange "event" I was able to capture only part of it as this descentent down the mountain and I have no idea what this was,...
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Black Hole...
From the link posted just above: "You can roughly think of a black hole as a star that traps all of its light". I like the "its" light. We normally read that "even light" can't escape a black hole,...
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Visualization: A...
There's far too much here for me to understand, but I'll ask this question: what's the difference between the event horizon and the photons sphere, and why it the photon sphere 50% larger than the...
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The Bridge: Discuss an Astronomy Picture of the Day • APOD: The Galaxy, the...
The Galaxy, the Jet, and a Famous Black Hole Explanation: Bright elliptical galaxy Messier 87 (M87) is home to the supermassive black hole captured in 2017 by planet Earth's Event Horizon Telescope in...
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The Asterisk Café: Discuss Anything Astronomy Related • High Hopes for K2-18...
Often, in astronomy, high hopes are immediately doused with buckets of water. But we can keep our fingers crossed for solid evidence. Statistics: Posted by Fred the Cat — Thu May 09, 2024 4:59 pm —...
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The Communications Center: Breaking Science News • M87's black hole is alive....
M87*'s Event Horizon Image. One Year Lateruniverse today | 2024 Jan 19"In the new image, however, the brightest part of a ring surrounding the black hole has shifted counterclockwise by about 30°....
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Contrail Shadow X...
...contrails...lol...NASA up to its usual shenanigans...Statistics: Posted by Guest — Fri May 10, 2024 11:33 am — Replies 21 — Views 790
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Simulation: Two...
Neither black hole lost mass. The individual precursor black holes merged to form a new black hole, and it has a higher mass than either of the precursors. The total mass difference reflects the...
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The Asterisk Café: Discuss Anything Astronomy Related • What did you see in...
_Northern lights over the Lago di Lugano...Located in the Italian-speaking south (Ticino) of Switzerland....or holiday greetings from the boathouse last night (10.05.2024 - 23:30 MEZ) jac berne...
View ArticleThe Library: Information Desk and Educational Resources • Why are earthly...
It is why earthly sunsets are never green. ...why atmospheric absorption of colors would prevent sunsets on the Earth from ever looking green."Why are earthly sunsets never green?" seems an...
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The Observation Deck: Latest Sky Photography • Video Submissions
Aurora display on May 10/11, 2024Auroras caused by an extreme geomagnetic storm that began on May 10, 2024 where captured with sky surveillance cameras covering visible and infrared wavelengths....
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: AR 3664: Giant...
Are red dwarfs particularly rich in sunspots, and is that why they are so active? They are more than rich I think, instead of flares occurring as local phenomena as on the surface of the Sun, with...
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Red Aurora over...
On Friday at times I also saw blue aurora, both in images and with the naked eye. I think it takes more energy to excite nitrogen atoms enough to produce the blue color as its a higher wavelength....
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Colors of the...
In its simplicity, this image is both artistic and scientific. the colors of the Moon catch the eye. I would like to understand a little more what the magenta color of the central moon is due to. I...
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The Bridge: Discuss an Astronomy Picture of the Day • APOD: All Sky Moon...
In its simplicity, this image is both artistic and scientific. the colors of the Moon catch the eye. I would like to understand a little more what the magenta color of the central moon is due to. I...
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The Asterisk Café: Discuss Anything Astronomy Related • Colors of Twilight...
Very true... but possibly excepting flowers! The color of the petals of pink/red/blue/purple flowers is created by a class of molecules called anthocyanins, and the actual color can vary across that...
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: AR 3664 on a...
It's a matter of geometric perspective.Statistics: Posted by Guest — Tue May 14, 2024 4:01 am — Replies 11 — Views 320
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The Bridge: Discuss an Astronomy Picture of the Day • APOD: The 37 Cluster...
If you can't see the 37...The 37 Cluster. Image Credit & Copyright: Sergio Eguivar...here it is! AnnP.S. Oh, and if you're looking for 42 in the sky, this might be the best that astronomy can do...
View ArticleThe Bridge: Discuss an Astronomy Picture of the Day • APOD: Visualization: A...
It's amazing how we were able to get these images. I dread to think what we can achieve in 10 or 20 years!Statistics: Posted by Astro_mark — Tue May 14, 2024 7:17 pm — Replies 13 — Views 747
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