Search found 50 matches

by zendae
Wed Apr 10, 2024 2:11 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Total Solar Eclipse over Wyoming (2024 Apr 07)
Replies: 11
Views: 796

Re: APOD: A Total Solar Eclipse over Wyoming (2024 Apr 07)

So, I'm too late to get either solar glasses or other eclipse viewing paraphernalia (I'm only in a 95% totality band anyway), but if I was interested in getting something to use with binoculars in the future, what's the best choice? I know there are specialty "solar-only" binoculars with ...
by zendae
Sun Apr 07, 2024 8:23 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Total Solar Eclipse over Wyoming (2024 Apr 07)
Replies: 11
Views: 796

Re: APOD: A Total Solar Eclipse over Wyoming (2024 Apr 07)

So, I'm too late to get either solar glasses or other eclipse viewing paraphernalia (I'm only in a 95% totality band anyway), but if I was interested in getting something to use with binoculars in the future, what's the best choice? I know there are specialty "solar-only" binoculars with ...
by zendae
Fri Mar 29, 2024 2:13 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Millions of Stars in Omega Centauri (2024 Mar 28)
Replies: 26
Views: 1242

Re: APOD: Millions of Stars in Omega Centauri (2024 Mar 28)

TY Chris and Ann. Ann, that is too many stars to have in our sky for me lol.. I very much like night time, and the night sky. It must be quite an energetic place for so many stars to be so near each other. Talk about turbulence - and the insane math that goes with it... And the next wonderment: so i...
by zendae
Thu Mar 28, 2024 2:37 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Millions of Stars in Omega Centauri (2024 Mar 28)
Replies: 26
Views: 1242

Re: APOD: Millions of Stars in Omega Centauri (2024 Mar 28)

I've asked this before re the Hercules cluster: do astronomers know the approximate distance between the closest stars to each other here? They seem to know the approximate number of stars, and the size and distance of the structure. I'm assuming things are not homogeneous tho: some stars are relati...
by zendae
Mon Mar 25, 2024 4:49 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Sonified: The Jellyfish Nebula... (2024 Mar 25)
Replies: 8
Views: 647

Re: APOD: Sonified: The Jellyfish Nebula... (2024 Mar 25)

It's pretty, but as a sound engineer, I would have rather heard it in a more natural way. I have listened to clips that audio folks have created using interpretation of the frequencies to ear-audible. Not as sonically lilting as this, but having some real relation to whatever is being scanned. I hav...
by zendae
Mon Jul 10, 2023 7:04 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Stars, Dust and Nebula in NGC 6559 (2023 Jul 10)
Replies: 8
Views: 1921

Re: APOD: Stars, Dust and Nebula in NGC 6559 (2023 Jul 10)

Chris Peterson wrote: Mon Jul 10, 2023 4:10 pm

Most of the volume of space is free of any particles (other than virtual ones). A true vacuum. But the density of particles is high enough that in most of the Universe the volume of particle free areas is small- cubic millimeters or less.
by zendae
Mon Jul 10, 2023 3:57 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Stars, Dust and Nebula in NGC 6559 (2023 Jul 10)
Replies: 8
Views: 1921

Re: APOD: Stars, Dust and Nebula in NGC 6559 (2023 Jul 10)

"...the dust boils away, the gas gets swept away..." There are a lot of tiny motes out there getting swept and blown hither and thither. I wonder if there is a 'particle to 3D area' ratio that determines when there is and when there is not a vacuum. Or is a vacuum such an absolute that it ...
by zendae
Sat Jun 24, 2023 3:01 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Giant Galaxies in Pavo (2023 Jun 23)
Replies: 12
Views: 2782

Re: APOD: Giant Galaxies in Pavo (2023 Jun 23)

Ann said: The elongated spiral galaxy NGC 6872 is truly gigantic, but that is mostly (or only partly?) because its arms have been "unwound" and "stretched out", likely because of tidal interaction with its small satellite galaxy, IC 4970. Even though NGC 6872 is huge, giant elli...
by zendae
Sun Jun 11, 2023 4:01 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Sun and Its Missing Colors (2023 Jun 11)
Replies: 23
Views: 7836

Re: APOD: The Sun and Its Missing Colors (2023 Jun 11)

[ Color is amazing. But for us on the Earth, indeed in the Solar system, it all starts the Sun. Which isn't yellow. But never mind. 🌞 Ann I am so fascinated by color. It means so much for all of us. No wonder plants are green; they have to reflect away all that poisonous green light from the Sun! A...
by zendae
Mon Jun 05, 2023 3:15 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Color the Universe (2023 Jun 04)
Replies: 37
Views: 8712

Re: APOD: Color the Universe (2023 Jun 04)

johnnydeep wrote: Mon Jun 05, 2023 1:42 pm
jeanfoxall@live.com wrote: Sun Jun 04, 2023 10:27 pm Help, someone, I'm stuck!
Or, "I've fallen and I can't get up!" :ssmile:
That is truly a beautiful color scheme Johnny. I think I want to save it!
by zendae
Sat Jun 03, 2023 2:43 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Messier 101 (2023 Jun 02)
Replies: 24
Views: 5632

Re: APOD: Messier 101 (2023 Jun 02)

Can you find a designation for the lovely three-armed spiral galaxy behind M101?

Ann
[/quote]


No designation, but at least this little ditty exists. Someone else likes it too.

https://www.flickr.com/photos/geckzilla ... lepictures
by zendae
Sat Jun 03, 2023 2:13 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Messier 101 (2023 Jun 02)
Replies: 24
Views: 5632

Re: APOD: Messier 101 (2023 Jun 02)

Are there two Pinwheel Galaxies, M101 and M33?

From Astronomy.com

"The Local Group’s third-largest member, the Pinwheel Galaxy (M33), resides in the constellation Triangulum. It is only about one-tenth the size of the Andromeda Galaxy and the Milky Way."
by zendae
Mon May 29, 2023 6:39 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Milky Way over a Turquoise Wonderland (2023 May 29)
Replies: 20
Views: 5992

Re: APOD: Milky Way over a Turquoise Wonderland (2023 May 29)

This photo reminds me of when I snuck up to the very tippy top of a cruise liner one very late clear night. No land, but the sky and the sea were similar. I was transfixed for hours; finally climbed down when the first hint of dawn appeared. If ever you take a cruise, do this...
by zendae
Tue May 23, 2023 9:59 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Jupiter's Swirls from Juno (2023 May 23)
Replies: 12
Views: 2683

Re: APOD: Jupiter's Swirls from Juno (2023 May 23)

Jupiter has nothing on Earth when it comes to clouds... https://4.bp.blogspot.com/-KjH31jxYIx8/T_m_jusWLxI/AAAAAAAACd4/muicUMsPxMA/s1600/Asperatus+Cloud2.jpg https://strangesounds.org/wp-content/uploads/2015/08/undulatus-asperatus-1.jpg https://external-preview.redd.it/sa-DK666FkDsCZgfCEqIvw7WZq5w4w...
by zendae
Sun May 21, 2023 3:38 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Tardigrade in Moss (2023 May 21)
Replies: 26
Views: 4187

Re: APOD: Tardigrade in Moss (2023 May 21)

Yes they always reminded me of vacuum cleaner bags. And why not? It's basically what they are, and man seemingly modeled vacuum cleaner bags after them unwittingly. I find it endlessly fascinating that even creatures as odd as these still share most of our features. I don't know if they get digested...
by zendae
Sun May 21, 2023 4:43 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Tardigrade in Moss (2023 May 21)
Replies: 26
Views: 4187

Re: APOD: Tardigrade in Moss (2023 May 21)

Their Achilles heel though are sustained high temperatures. Even desiccated tardigrades of the toughest species will succumb to sustained temps above 100C. So it is still the seeds of certain plants that will win the ultimate heat race, as tardigrades cannot withstand fire, while seeds can. Neverthe...
by zendae
Fri May 12, 2023 3:29 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Milky Way over Egyptian Desert (2023 May 10)
Replies: 16
Views: 5687

Re: APOD: Milky Way over Egyptian Desert (2023 May 10)

I didn't know so many arms could be seen: "The structures of our galaxy are as follows- -The centre of our galaxy resides in sagittarius, not far from M6, but is obscured from view due to the dust clouds of the sagittarius-Carina spiral arm which is the next spiral arm in from our own. -We can ...
by zendae
Wed May 10, 2023 3:25 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Milky Way over Egyptian Desert (2023 May 10)
Replies: 16
Views: 5687

Re: APOD: Milky Way over Egyptian Desert (2023 May 10)

Far more than in my night sky, this photo lets us know how close it is us to us. I wonder tho: is it the central body we are looking at or the body of the Orion/Cygnus Arm we live in? Or perhaps one of the major arms?
by zendae
Wed May 10, 2023 5:48 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Milky Way over Egyptian Desert (2023 May 10)
Replies: 16
Views: 5687

Re: APOD: Milky Way over Egyptian Desert (2023 May 10)

So impressive it looks like a Midjourney fantasy painting.
by zendae
Sat Apr 29, 2023 4:31 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Runaway Star Alpha Camelopardalis (2023 Apr 28)
Replies: 27
Views: 7725

Re: APOD: Runaway Star Alpha Camelopardalis (2023 Apr 28)

I don't know what you mean by "single". We would be unlikely to be able to detect if any of these stars have planetary systems. Ann seems to mean stars that are not "multiple"s, as in binaries, trinaries, etc. But holding on to planets seems like it would be a lot easier than ho...
by zendae
Fri Apr 28, 2023 6:19 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Runaway Star Alpha Camelopardalis (2023 Apr 28)
Replies: 27
Views: 7725

Re: APOD: Runaway Star Alpha Camelopardalis (2023 Apr 28)

So let's say S5-HVS1 had a couple planets. Are they still in capture by the star hurtling thru space, or has all the upheaval overcome the gravity that held them? Have they become runaway planets, now alone in the dark?
by zendae
Mon Apr 03, 2023 5:14 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M57: The Ring Nebula from Hubble (2023 Apr 02)
Replies: 9
Views: 2046

Re: APOD: M57: The Ring Nebula from Hubble (2023 Apr 02)

Thank you Ann. It almost sounds like a giant centrifuge of sorts - not working exactly the same way, but having similar results. Well, we have a limited number of wavelength colors, though many shades. Does each element correspond to a color shade? Can we have 98 shades of color providing the elemen...