Search found 3000 matches

by johnnydeep
Sat Jun 15, 2024 1:19 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Prominences and Filaments on the Sun... (2024 Jun 15)
Replies: 4
Views: 5815

Re: APOD: Prominences and Filaments on the Sun... (2024 Jun 15)

I suppose this is pointing out the obvious, but although all the prominences we see in this image are on or very near the planar edge of the Sun we happen to be seeing here, the entire surface of the Sun must in fact be studded with prominences, much like looped carpet piling on a shag rug. Perhaps...
by johnnydeep
Sat Jun 15, 2024 1:13 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Prominences and Filaments on the Sun... (2024 Jun 15)
Replies: 4
Views: 5815

Re: APOD: Prominences and Filaments on the Sun... (2024 Jun 15)

I suppose this is pointing out the obvious, but although all the prominences we see in this image are on or very near the planar edge of the Sun we happen to be seeing here, the entire surface of the Sun must in fact be studded with prominences, much like looped carpet piling on a shag rug.
by johnnydeep
Mon Jun 10, 2024 8:44 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sh2-132: The Lion Nebula (2024 Jun 10)
Replies: 7
Views: 4515

Re: APOD: Sh2-132: The Lion Nebula (2024 Jun 10)

zeecatman wrote: Mon Jun 10, 2024 8:32 pm
johnnydeep wrote: Mon Jun 10, 2024 5:32 pm So far, I am able to see exactly zero lions in this nebula.
Somehow I knew this would be the main topic of discussion :lol2:

This is what I decided on:

LionNeb_Badr_3720.jpg
Yeah, that's about what my last reply approximated, though your outline is more refined. 😊
by johnnydeep
Mon Jun 10, 2024 6:29 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sh2-132: The Lion Nebula (2024 Jun 10)
Replies: 7
Views: 4515

Re: APOD: Sh2-132: The Lion Nebula (2024 Jun 10)

So far, I am able to see exactly zero lions in this nebula. EDIT - ok, perhaps this is it: lion nebula lion.jpg Maybe this? (Probably have to click on it.) _ qu9m8y5l.gif Yeah, that's certainly better. Big lion head, no body. Still tough to see it though! Maybe big head little bod version: lion neb...
by johnnydeep
Mon Jun 10, 2024 5:32 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sh2-132: The Lion Nebula (2024 Jun 10)
Replies: 7
Views: 4515

Re: APOD: Sh2-132: The Lion Nebula (2024 Jun 10)

So far, I am able to see exactly zero lions in this nebula.

EDIT - ok, perhaps this is it:

lion nebula lion.jpg
by johnnydeep
Sun Jun 09, 2024 5:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)
Replies: 22
Views: 6005

Re: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)

The red dot is located at number 3 in my annotated image. You have put it at number 10. :ssmile: The red dot is quite faint and only looks bright in the enlarged image. Ann But that's not the red dot from the video. That red dot is near your "10" label as shown in Christian G.'s post abov...
by johnnydeep
Sun Jun 09, 2024 5:02 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)
Replies: 27
Views: 8359

Re: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)

I'm on very shaky ground here, but I think Johnny is right. I think rotation may indeed have something to do with how fast a star exhausts in core hydrogen and turns into a red giant. I think that a sufficiently fast rotation may mix the interior gases of a hot star in such a way that more hydrogen...
by johnnydeep
Sun Jun 09, 2024 4:57 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)
Replies: 22
Views: 6005

Re: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)

If we're talking about the red dot at 1:00, I see it left of the galaxy circled in white: Thanks - that's it alright! But I don't see it in Ann's reply images. Here's the side-by-side with the movie still and Ann's labeled image, with a dotted green line relating them: pandora cluster mystery dod.j...
by johnnydeep
Sun Jun 09, 2024 4:51 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: How to Identify that Light in the Sky (2024 Jun 09)
Replies: 14
Views: 5013

Re: APOD: How to Identify that Light in the Sky (2024 Jun 09)

Does anyone else see it? No - you might be hallucinating, or having a brain aneurysm.
by johnnydeep
Sat Jun 08, 2024 9:13 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)
Replies: 22
Views: 6005

Re: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)

Ann, is the mysterious "red dot" seen in the video seen in either of the labeled images you posted? Also, I can't seem to orient and locate your images, OR the "red dot" on today's APOD. <sigh> If we're talking about the red dot at 1:00, I see it left of the galaxy circled in wh...
by johnnydeep
Sat Jun 08, 2024 6:37 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)
Replies: 22
Views: 6005

Re: APOD: Pandora's Cluster of Galaxies (2024 Jun 08)

Ann, is the mysterious "red dot" seen in the video seen in either of the labeled images you posted? Also, I can't seem to orient and locate your images, OR the "red dot" on today's APOD. <sigh>
by johnnydeep
Fri Jun 07, 2024 9:03 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)
Replies: 27
Views: 8359

Re: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)

The Dolphin Head nebula looks so much like a dolphin head that there really is no need to overdo the colour to make it look still more like a dolphin head! Which often astrographers tend to do I find, in blue-greens, but not in this case, it's just the right amount in my view! A fascinating aspect ...
by johnnydeep
Fri Jun 07, 2024 5:19 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)
Replies: 27
Views: 8359

Re: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)

It's interesting/amusing that the image at one of the W-R links shows another dolphin-like nebula, this time depicting the entire body: https://earthsky.org/upl/2022/07/Wolf-Rayet-star-WR-134-June-2020-scaled-e1659119484487.jpg Perhaps dolphins like to play near the strong winds of Wolf-Rayet stars! 😊
by johnnydeep
Fri Jun 07, 2024 5:15 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)
Replies: 27
Views: 8359

Re: APOD: SH2-308: The Dolphin Head Nebula (2024 Jun 07)

The Dolphin Head nebula looks so much like a dolphin head that there really is no need to overdo the colour to make it look still more like a dolphin head! Which often astrographers tend to do I find, in blue-greens, but not in this case, it's just the right amount in my view! A fascinating aspect ...
by johnnydeep
Thu Jun 06, 2024 8:21 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: NGC 4565: Galaxy on Edge (2024 Jun 06)
Replies: 10
Views: 5176

Re: APOD: NGC 4565: Galaxy on Edge (2024 Jun 06)

https://apod.nasa.gov/apod/calendar/S_240606.jpg NGC 4565: Galaxy on Edge Explanation: Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for its narrow profile, bright NGC 4565 is a stop on many telescopic tours of the northern sky, in the faint...
by johnnydeep
Thu Jun 06, 2024 5:42 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: NGC 4565: Galaxy on Edge (2024 Jun 06)
Replies: 10
Views: 5176

Re: APOD: NGC 4565: Galaxy on Edge (2024 Jun 06)

https://apod.nasa.gov/apod/calendar/S_240606.jpg NGC 4565: Galaxy on Edge Explanation: Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for its narrow profile, bright NGC 4565 is a stop on many telescopic tours of the northern sky, in the faint...
by johnnydeep
Thu Jun 06, 2024 12:36 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Shadow of a Martian Robot (2024 Jun 05)
Replies: 8
Views: 4763

Re: APOD: Shadow of a Martian Robot (2024 Jun 05)

There is a small hollow on the front of the sort of white box located under the small cylinder, just to the right of the wheel. Maybe it's a stone when passing through a dust devil? Alex Not sure what you're referring to. This dent perhaps? dent on perseverence.jpg Yes, this one. Alex. Well, then y...
by johnnydeep
Wed Jun 05, 2024 7:01 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Shadow of a Martian Robot (2024 Jun 05)
Replies: 8
Views: 4763

Re: APOD: Shadow of a Martian Robot (2024 Jun 05)

alex555 wrote: Wed Jun 05, 2024 7:54 am There is a small hollow on the front of the sort of white box located under the small cylinder, just to the right of the wheel. Maybe it's a stone when passing through a dust devil?

Alex
Not sure what you're referring to. This dent perhaps?

dent on perseverence.jpg
by johnnydeep
Wed Jun 05, 2024 6:52 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Comet Pons-Brooks Develops Opposing... (2024 Jun 04)
Replies: 8
Views: 4910

Re: APOD: Comet Pons-Brooks Develops Opposing... (2024 Jun 04)

It looks spectacular but, what could this have been like? https://es.wikipedia.org/wiki/Gran_Cometa_de_1744 Fantastic! The Great Comet of 1744 looked like this: https://upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Ch%C3%A9seaux%27s_Comet_of_1744_%28The_World_of_Comets%29.jpg/1280px-Ch%C3%A9sea...
by johnnydeep
Tue Jun 04, 2024 8:15 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Comet Pons-Brooks Develops Opposing... (2024 Jun 04)
Replies: 8
Views: 4910

Re: APOD: Comet Pons-Brooks Develops Opposing... (2024 Jun 04)

The best part of this APOD is the link to a crow having fun repeatedly sliding down a snowy roof. If that doesn't prove animals are conscious and sentient (are those even different things?), nothing does! ... Amazing!!! The crow is even using a plastic lid as a sled!!! Crows are so smart! I'm remin...
by johnnydeep
Tue Jun 04, 2024 6:54 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Comet Pons-Brooks Develops Opposing... (2024 Jun 04)
Replies: 8
Views: 4910

Re: APOD: Comet Pons-Brooks Develops Opposing... (2024 Jun 04)

The best part of this APOD is the link to a crow having fun repeatedly sliding down a snowy roof. If that doesn't prove animals are conscious and sentient (are those even different things?), nothing does!

Click to play embedded YouTube video.
by johnnydeep
Mon Jun 03, 2024 8:31 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: NGC 2403 in Camelopardalis (2024 Jun 03)
Replies: 16
Views: 2807

Re: APOD: NGC 2403 in Camelopardalis (2024 Jun 03)

Halton Arp, in his book Seeing Red thinks the “tidal tail” Ann highlights could be ejection debris. Fringe science, rejected by virtually all cosmologists. For this galaxy though, the desc links to this paper https://arxiv.org/abs/2301.13526 We present new neutral hydrogen (HI) observations of the ...
by johnnydeep
Mon Jun 03, 2024 5:42 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Rotating Moon from LRO (2024 Jun 02)
Replies: 16
Views: 2748

Re: APOD: Rotating Moon from LRO (2024 Jun 02)

When the Moon became tidally locked, the Earth surface was still about 2500°C, and the Moon was 10-20 times closer than it is today. At that time, the Moon had an atmosphere of vaporized heavy elements (basically, rock vapor). The cooler side away from the Earth would have had material condense soo...
by johnnydeep
Mon Jun 03, 2024 5:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: NGC 2403 in Camelopardalis (2024 Jun 03)
Replies: 16
Views: 2807

Re: APOD: NGC 2403 in Camelopardalis (2024 Jun 03)

MelvzLuster wrote: Mon Jun 03, 2024 4:31 pm That galaxies are meant to be inhabited by man in the near future as foretold by scientists when starships are ready to be piloted by future astronauts
like us, so live forever & prosper!
Please define "near", "foretold" and which "scientists".