Search found 96 matches
- Thu Apr 18, 2024 4:54 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Total Eclipse and Comets (2024 Apr 17)
- Replies: 25
- Views: 1444
Re: APOD: Total Eclipse and Comets (2024 Apr 17)
Thank you Ann and Chris. As always, you help me understand things a bit better.
- Thu Apr 18, 2024 3:59 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Total Eclipse and Comets (2024 Apr 17)
- Replies: 25
- Views: 1444
Re: APOD: Total Eclipse and Comets (2024 Apr 17)
I wonder what makes the comet get too close to the Sun ? I'd imagine gravity pull .. but then, how long it must have taken that comet to reach that stage (i mean how many times it must have made rounds around Sun and how many years it must have been doing it before finally getting too close and gett...
- Tue Apr 09, 2024 4:39 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Moon's Shadow over Lake Magog (2024 Apr 09)
- Replies: 13
- Views: 1125
Re: APOD: Moon's Shadow over Lake Magog (2024 Apr 09)
Couldn't understand one basic aspect. Why the eclipse is seen starting from west coast in US to east coast in US.. Apparent motion of moon from east to waste should be faster than Sun's apparent motion from east to west.. So I was imagining it'd start from east coast and move towards west coast. And...
- Wed Mar 27, 2024 4:48 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Coma Cluster of Galaxies (2024 Mar 27)
- Replies: 13
- Views: 902
Re: APOD: The Coma Cluster of Galaxies (2024 Mar 27)
Beautiful and Amazing. I wish they had mentioned the range of distances to galaxies (e.g. from 170 million to 10 billion light years away etc). Just to get and give a perspective, not everything that's "seen (looks) together and close" isn't so in reality.
- Thu Feb 01, 2024 4:14 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 1365: Majestic Island Universe (2024 Feb 01)
- Replies: 19
- Views: 535378
Re: APOD: NGC 1365: Majestic Island Universe (2024 Feb 01)
"NGC 1365's prominent bar plays a crucial role" .. Sorry, but where is the "bar" ? I zoomed and zoomed.. maybe I am challenged to see shapes OR people who think there's a bar are falling to brain's "looking for shapes and patterns" bias/tendency ?
- Tue Jan 30, 2024 3:53 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: SLIM Lands on the Moon (2024 Jan 30)
- Replies: 10
- Views: 13499
Re: APOD: SLIM Lands on the Moon (2024 Jan 30)
Maybe the small rover should go and bump into Moon Sniper (a nudge, not a destructive bang/collision) so that it stands on it's feet (thrusters touching ground) normal ? Worth experimenting instead of letting it lay there in "vegetable state".. just wondering..
- Mon Jan 29, 2024 5:32 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Pleiades: Seven Dusty Sisters (2024 Jan 29)
- Replies: 23
- Views: 3076
Re: APOD: The Pleiades: Seven Dusty Sisters (2024 Jan 29)
From bay area California, whenever I saw Pleiades, I saw "Y" shaped star cluster, with 6 stars I can see with naked eye on most nights even from urban location. In this image, I am not able to figure out where's that "Y" shape (that makes it difficult to relate to what I see) and...
- Wed Jan 24, 2024 5:56 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Earth and Moon from Beyond (2024 Jan 24)
- Replies: 7
- Views: 1307
Re: APOD: Earth and Moon from Beyond (2024 Jan 24)
Good angle, good view, good perspective. Not so usual. I also like that we are able to see some portion of moon that we never get to see from earth but I wish we could see it better (I'm thinking the cameras on Artemis I don't have good resolution), i've never seen so much large portion of the moon ...
- Sun Jan 21, 2024 4:58 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Upper Michigan Blizzard of 1938 (2024 Jan 21)
- Replies: 13
- Views: 1827
Re: APOD: The Upper Michigan Blizzard of 1938 (2024 Jan 21)
Sorry, what's today's APOD got to do with "A" in "APOD" ? It happens from time to time, I wonder what the person in-charge of posting APOD was drinking last night..
- Tue Jan 16, 2024 6:05 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Orion You Can Almost See (2024 Jan 16)
- Replies: 7
- Views: 1894
Re: APOD: The Orion You Can Almost See (2024 Jan 16)
Quick question on Barnard's loop - 1) Why it's called a "loop" when all we can see (at least prominently and obviously) is a C shaped arc ? I did quick Google search and couldn't see an answer in a few clicks :( 2) How do they measure distances to such objects and why it has large margin o...
- Fri Jan 12, 2024 5:31 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Good Morning Moon (2024 Jan 12)
- Replies: 10
- Views: 13943
Re: APOD: Good Morning Moon (2024 Jan 12)
Thank you Ann and Chris. I can understand the other reasons (not a question of pride anymore, not a military operation anymore.. etc) but with trillions of $$ of spending at federal and state levels in US and with many private companies $$ also coming in, I'm surprised "money (or lack thereof)&...
- Fri Jan 12, 2024 5:52 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Good Morning Moon (2024 Jan 12)
- Replies: 10
- Views: 13943
Re: APOD: Good Morning Moon (2024 Jan 12)
Tangential question (related to moon) - If NASA managed to land many astronauts on moon till 1972 (they even drove there), after 50 years, achieving same should have been piece of cake (considering that capability/expertise, instruments, technology, money - everything - we have much more/better toda...
- Fri Jan 05, 2024 9:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Trapezium: At the Heart of Orion (2024 Jan 05)
- Replies: 23
- Views: 47488
Re: APOD: Trapezium: At the Heart of Orion (2024 Jan 05)
Slightly tangential question - if there's BH there (around 1500 ly), then it'd be even closer than the closest we know so far (Gaia BH1/BH2). I wonder if there'd be a BH much closer (e.g. just outside Neptune's orbit) and we just don't have a way (technology, instruments, skills, knowledge) to detec...
- Fri Jan 05, 2024 5:08 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Zeta Oph: Runaway Star (2024 Jan 04)
- Replies: 22
- Views: 7606580
Re: APOD: Zeta Oph: Runaway Star (2024 Jan 04)
I recall somewhere it was mentioned that some star was moving in our direction that is expected to be closer to us than Alpha Centauri is, I'm assuming that star is a runaway star..
- Mon Jan 01, 2024 9:58 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
- Replies: 13
- Views: 3438
Re: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
Hi Chris, I acknowledge and appreciate your knowledge and thoughts, only thing I have difference of opinion is about "possibility of radically different understanding of universe" that humanity will have in next 100 years if not just 25-50 years. Just imagine how understanding changed/evo...
- Sun Dec 31, 2023 9:56 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
- Replies: 13
- Views: 3438
Re: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
Hard to fathom that all we see and think we understand comprises only 5% of the universe: https://chandra.harvard.edu/chronicle/0108/universe/pie.jpg But that doesn't mean that our understanding of nature is 95% incomplete! If it means we "understand" that we don't understand 95%, then ye...
- Sun Dec 31, 2023 6:38 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
- Replies: 13
- Views: 3438
Re: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
It's great experiment and am sure lot of time, money, efforts, knowledge involved in creating this but I can't help resist the thought that maybe all this is moot with latest discoveries James Webb ? I mean, the whole thing was based on 2014, 9 years ago and tons of things have changed since then w...
- Sun Dec 31, 2023 4:29 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
- Replies: 13
- Views: 3438
Re: APOD: Illustris: A Simulation of the Universe (2023 Dec 31)
It's great experiment and am sure lot of time, money, efforts, knowledge involved in creating this but I can't help resist the thought that maybe all this is moot with latest discoveries James Webb ? I mean, the whole thing was based on 2014, 9 years ago and tons of things have changed since then wh...
- Thu Dec 28, 2023 4:35 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Jupiter and the Geminid (2023 Dec 28)
- Replies: 15
- Views: 19612
Re: APOD: Jupiter and the Geminid (2023 Dec 28)
Thank you Ann and Chris for detailed explanation, thoughts and comments. I always find it useful, it adds to my knowledge (or curiosity).
- Thu Dec 28, 2023 5:20 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Jupiter and the Geminid (2023 Dec 28)
- Replies: 15
- Views: 19612
Re: APOD: Jupiter and the Geminid (2023 Dec 28)
Hmmm,,, quick questions - 1) Brightest portion in the middle.. is that where the friction with Earth's atmosphere is the strongest (e.g. left origin up above atmosphere, so not that bright, right ending portion after the max burn falling down from sky) ? Or some other reason ? 2) Why blue-green ligh...
- Fri Dec 15, 2023 3:48 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Betelgeuse Eclipsed (2023 Dec 15)
- Replies: 16
- Views: 14262
Re: APOD: Betelgeuse Eclipsed (2023 Dec 15)
Thanks to folks posting video/link of occultation. One question remains - why the brightness of star is seen lowering equally (full 360 deg, round) and not partially just where the occultation happened ? Whenever we see moon/Sun getting eclipsed like that - partially, at an angle, cutting it's visua...
- Fri Dec 15, 2023 5:22 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Betelgeuse Eclipsed (2023 Dec 15)
- Replies: 16
- Views: 14262
Re: APOD: Betelgeuse Eclipsed (2023 Dec 15)
That day I tried to get a "live" video streaming, I looked and searched and searched.. got none. It was disappointing. From the photo (right frame), seems the passing was subtle (not so obvious, not so conspicuous) to naked eyes (or even small binoculars) ? It's strange that people didn't ...
- Mon Nov 13, 2023 4:47 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Andromeda over the Alps (2023 Nov 13)
- Replies: 21
- Views: 34160
Re: APOD: Andromeda over the Alps (2023 Nov 13)
IF we had a telescope that was powerful enough to see all the way into the Andromeda galaxy, and powerful enough to zoom into a planet that harbored some type of life, would we be seeing images from 2 million years ago or current? From over 2 million years ago. What we "see" is what light...
- Mon Nov 13, 2023 5:39 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Andromeda over the Alps (2023 Nov 13)
- Replies: 21
- Views: 34160
Re: APOD: Andromeda over the Alps (2023 Nov 13)
I've never been fan of such artificial mixture of different compositions with different settings and processing.. What's the purpose ? Why make something appear so incorrect from physics and reality perspective.. it's not like we are here at APOD to watch a Sci-fi movie with CGI effects.. It's image...
- Fri Nov 10, 2023 3:21 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: UHZ1: Distant Galaxy and Black Hole (2023 Nov 10)
- Replies: 18
- Views: 20836
Re: APOD: UHZ1: Distant Galaxy and Black Hole (2023 Nov 10)
When the black hole which is supposed to be at the center of galaxy is shown bigger than entire galaxy.. I'm sure it's got to do with different (and digital) zooms of Chandra and JWST just to make it easier for viewers ? It is beyond my capability of understanding how the telescopes and then process...