Search found 952 matches
- Mon May 13, 2024 3:18 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What did you see in the sky tonight?
- Replies: 1303
- Views: 1058930
Re: What did you see in the sky tonight?
Last night I tried to photograph the aurora with my DSLR with little success. My wife took these with her IPhone. image_123650291 (1)a.JPG image_123650291 (2)a.JPG image_123650291a.JPG With my eye it was not very apparent but her cell phone captured quite a different scene. :? Is aurora photography ...
- Sat May 11, 2024 1:14 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Simulation: Two Black Holes Merge (2024 May 10)
- Replies: 21
- Views: 766
Re: APOD: Simulation: Two Black Holes Merge (2024 May 10)
Simulating a camera’s eye view seems the best we can do.
But imagine what would happen to the camera.
Disorientating to both.
But imagine what would happen to the camera.
Disorientating to both.
- Thu May 09, 2024 4:59 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: High Hopes for K2-18 Hosting Life
- Replies: 1
- Views: 788
Re: High Hopes for K2-18 Hosting Life
Often, in astronomy, high hopes are immediately doused with buckets of water.
But we can keep our fingers crossed for solid evidence.
But we can keep our fingers crossed for solid evidence.
- Thu May 09, 2024 2:16 pm
- Forum: Open Space: Discuss Anything
- Topic: Weather!
- Replies: 2867
- Views: 994885
Re: Weather!
I went to a concert in Portland a couple of months ago. Walking from the parking space I walked past a large tree and noticed this plaque in front of it: PXL_20240211_205553559 (1).jpg The city has grown all around the tree; it's flourished and become quite large. Which is pretty neat...nice work, ...
- Tue May 07, 2024 3:31 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Black Hole Accreting with Jet (2024 May 07)
- Replies: 17
- Views: 663
- Thu Apr 18, 2024 7:03 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Total Eclipse and Comets (2024 Apr 17)
- Replies: 25
- Views: 1347
Re: APOD: Total Eclipse and Comets (2024 Apr 17)
Are you suggesting that the Corona might be markedly different in the portions of it that we can't currently study well (that is, those portions that extend in directions other than in the 2-D radial view we usually see during eclipses)? Possibly? :| Did you notice my edit of my post since your rep...
- Thu Apr 18, 2024 6:02 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Total Eclipse and Comets (2024 Apr 17)
- Replies: 25
- Views: 1347
Re: APOD: Total Eclipse and Comets (2024 Apr 17)
In a two-dimensional image, the corona extends perpendicularly but what of the part that is directed toward or away from us? The actual corona extends in all directions during a “total eclipse” image of the moon. This may entail a SOHO-like orbiter above the sun’s poles following the Cluster missio...
- Thu Apr 18, 2024 5:38 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Total Eclipse and Comets (2024 Apr 17)
- Replies: 25
- Views: 1347
Re: APOD: Total Eclipse and Comets (2024 Apr 17)
In a two-dimensional image, the corona extends perpendicularly but what of the part that is directed toward or away from us? The actual corona extends in all directions during a “total eclipse” image of the moon. This may entail a SOHO-like orbiter above the sun’s poles following the Cluster mission...
- Fri Apr 05, 2024 3:34 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Solar Corona Unwrapped (2024 Apr 05)
- Replies: 21
- Views: 1133
Re: APOD: The Solar Corona Unwrapped (2024 Apr 05)
Can ths be done with a coronagraph image over time, so as to highlight changes in direction and latitude of emissions? To some extent, but no ground-based coronagraph can approach the dynamic range accessible during an eclipse. One tricky point is that what we're seeing here is transient. The Sun i...
- Wed Apr 03, 2024 4:34 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Origin of the Universe
- Replies: 55
- Views: 112668
Re: Origin of the Universe
Consensus is one of the most important parts of science and the scientific method, though. Speculation is for experts. Starting with a conclusion and then cherry picking for evidence that peripherally supports it is not scientific, and is unlikely to lead to accurate understanding. I agree but even...
- Tue Apr 02, 2024 4:39 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Origin of the Universe
- Replies: 55
- Views: 112668
Re: Origin of the Universe
When he proposes it in a peer reviewed journal and supports it with evidence, it will mean something. (He is a student whose research interests are all centered on speculative stuff without evidenciary support, not necessarily even rising the the level of scientific theory.) Speculation is natural ...
- Tue Apr 02, 2024 3:39 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Origin of the Universe
- Replies: 55
- Views: 112668
Re: Origin of the Universe
I read a news: Bruno Bento, researcher at the departament of mathematical scienses at the University of Liverpool, England, states that," perhaps, ( in the Universe), there was not even a beginning" Proposes an infinite past and sees the Big Bang as one more event " in a cosmos that ...
- Fri Mar 29, 2024 3:34 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Colors of Twilight vs. Sunset/Sunrise
- Replies: 28
- Views: 2368
Re: Colors of Twilight vs. Sunset/Sunrise
Thanks for the suggestion, Chris, I didn't think of that! :D 🐐 That's a lovely goat, by the way. What's her name? She looks very feminine to me! :D 👱🏾♀️ Ann Gretel. She'll be kidding in a couple of weeks. Thanks for teaching me a new word, Chris! I only knew one meaning of the word "kidding&q...
- Sun Mar 24, 2024 6:04 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Looking Back at an Eclipsed Earth (2024 Mar 24)
- Replies: 13
- Views: 1032
Re: APOD: Looking Back at an Eclipsed Earth (2024 Mar 24)
Looking back, how would a solar eclipse have appeared millions of years ago? Let’s say during the Eocene . Hard to say but that era had plenty of action here on Earth. Of our extinction events , many had relevance during the epoch . There was a hot time in the old town that night . :roll:
- Sun Mar 17, 2024 2:36 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What did you see in the sky tonight?
- Replies: 1303
- Views: 1058930
Re: What did you see in the sky tonight?
The conjuction tonight with its beautiful crescent led me back to "The Road to the Snow Moon" from last month. I love finding images you forgot you took. :facepalm: FMI. Is there a possibility that Uranus crept into the conjunction image? IMG_6848.JPG That would be an unexpected surprise....
- Thu Mar 14, 2024 5:05 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What did you see in the sky tonight?
- Replies: 1303
- Views: 1058930
Re: What did you see in the sky tonight?
The conjuction tonight
with its beautiful crescent
led me back to "The Road to the Snow Moon" from last month.
I love finding images you forgot you took.
- Mon Feb 19, 2024 5:51 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: The Speed of Gravity
- Replies: 2
- Views: 13486
Re: The Speed of Gravity
I was listening to Don Lincoln’s video about Einstein and Newton describing the speed of gravity and he was saying how he, “wished he could have witnessed a debate ”. How might they disagree about gravity's velocity? With AI nowadays, it might actually be simulated. A daunting task I’d like to see ...
- Sat Feb 17, 2024 6:09 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Marzipan destiny?
- Replies: 1
- Views: 3475
Re: Marzipan destiny?
Thorny indeed!
- Sun Feb 11, 2024 6:04 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Shadow of Ingenuity's Rotor... (2024 Feb 10)
- Replies: 28
- Views: 3053
Re: APOD: The Shadow of Ingenuity's Rotor... (2024 Feb 10)
Or both? The " soil" looks like it may have been recently disturbed.johnnydeep wrote: ↑Sat Feb 10, 2024 6:40 pmMore like rotor breaking!Fred the Cat wrote: ↑Sat Feb 10, 2024 5:58 pmUnfortunately, its end was also ground-breaking.Chris Peterson wrote: ↑Sat Feb 10, 2024 5:26 pm
I don't think the communications loss was related to distance.
- Sat Feb 10, 2024 5:58 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Shadow of Ingenuity's Rotor... (2024 Feb 10)
- Replies: 28
- Views: 3053
Re: APOD: The Shadow of Ingenuity's Rotor... (2024 Feb 10)
So, Perseverance was too far away for a direct image but a flight was attempted in which contact was lost and the incident occurred? Does that mean the real cause was a last-ditch effort to get Ingenuity closer? :? It makes me wonder why it so far away that communication was an issue. :| I don't th...
- Sat Feb 10, 2024 5:13 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Shadow of Ingenuity's Rotor... (2024 Feb 10)
- Replies: 28
- Views: 3053
- Thu Feb 08, 2024 6:38 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Globular Star Cluster 47 Tuc (2024 Feb 08)
- Replies: 9
- Views: 1686
Re: APOD: Globular Star Cluster 47 Tuc (2024 Feb 08)
It’s like asking the question, “What came first the chicken or the egg?”
It seems like galaxies may be coops with very old chickens and all their eggs are either fried, hard-boiled, or scrambled.
It seems like galaxies may be coops with very old chickens and all their eggs are either fried, hard-boiled, or scrambled.
- Mon Jan 15, 2024 7:17 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Star Cluster IC 348 from Webb (2024 Jan 15)
- Replies: 13
- Views: 3186
Re: APOD: Star Cluster IC 348 from Webb (2024 Jan 15)
Somehow the description failed to mention the star-forming nature of these filaments . From the Pleiades to galaxies to our Magellanic Clouds , filaments seem to be quite important. JWST investigation seems to be hot on the trail. " Musca " not decided to go into that. :|
- Fri Jan 12, 2024 5:52 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Seeing the nearest stars
- Replies: 9
- Views: 16785
- Sun Jan 07, 2024 6:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Cat's Eye Nebula in Optical... (2024 Jan 07)
- Replies: 14
- Views: 19494
Re: APOD: The Cat's Eye Nebula in Optical... (2024 Jan 07)
And to a horticultural guy like me, it begs a question I have never ever considered before: Are celestial phenomenon fragrant? :s Well, the seventh planet certainly has a reputation... :P And it's still waiting for that cosmic bidet... I find it illuminating that jets may arise from different astro...