Search found 11 matches

by p1gnone
Thu May 05, 2022 3:31 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: NGC 3521: Galaxy in a Bubble (2022 May 05)
Replies: 20
Views: 10729

Re: APOD: NGC 3521: Galaxy in a Bubble (2022 May 05)

more than enveloped in a bubble there appears a distinctly red column, obliquely aimed at the galactic center to the left, ad perhaps from behind also to the right. Is this a anomaly of the imaging or active galactic center ? M82 has messy jets, and the artists conceive columnar jets always orthogon...
by p1gnone
Fri Nov 12, 2021 10:16 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M33: The Triangulum Galaxy (2021 Nov 12)
Replies: 20
Views: 5790

Re: APOD: M33: The Triangulum Galaxy (2021 Nov 12)

If Triangulum galaxy is 3MLY from us and perhaps orbiting Andromeda, then considering MilkyWay galaxy 2MLY from Andromeda galaxy, with this pair colliding in 2BY, what can one say about the motion and longterm prospects of collisions with the Triangulum galaxy? Any links to 3D representations of rel...
by p1gnone
Tue Jun 08, 2021 2:11 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Face in the Clouds of Jupiter from... (2021 Jun 08)
Replies: 20
Views: 6619

Re: APOD: A Face in the Clouds of Jupiter from... (2021 Jun 08)

JohnD wrote: Tue Jun 08, 2021 10:52 amThis picture adds NOTHING to scientific knowledge!
The picture may well contain scientifically useful info, but the pareidolia distracts from it, doesn't amuse me & doesn't add to MY scientific knowledge.
by p1gnone
Tue Jun 08, 2021 2:07 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: A Face in the Clouds of Jupiter from... (2021 Jun 08)
Replies: 20
Views: 6619

Re: APOD: A Face in the Clouds of Jupiter from... (2021 Jun 08)

I don't find amusement in pareidolia.
More I am reminded that I do not understand the color variation.
Is it temperature of same gasses, differences in gas concentration, dust or other matter inclusions? Accomplished by what mechanisms?
by p1gnone
Wed Jun 24, 2020 1:41 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The X-Ray Sky from eROSITA (2020 Jun 23)
Replies: 19
Views: 9356

Re: APOD: The X-Ray Sky from eROSITA (2020 Jun 23)

Less than a year ago the Fermi Bubble were big news. I was amazed to see them here prominently, but wholly uncommented, without noting!
by p1gnone
Wed Apr 22, 2020 6:36 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Eye on the Milky Way (2020 Apr 21)
Replies: 15
Views: 6620

Re: APOD: Eye on the Milky Way (2020 Apr 21)

Ironwood wrote: Tue Apr 21, 2020 9:55 am Very artistic, but I'd have preferred to rotate the picture 90 degrees counterclockwise. Then it would fit my monitor much better.
forget for fitting the monitor; my horizon in horizontal!
by p1gnone
Wed Aug 10, 2016 7:55 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Colliding Galaxies in Stephan's Quintet (2016 Aug 10)
Replies: 8
Views: 2385

Re: APOD: Colliding Galaxies in Stephan's Quintet (2016 Aug 10)

Seeing two galactic nuclei 'close' to one another only speaks to position. The relative speed in passing has just as much to say about the amount of time until coalescence, as they may swing to highly separated yet again.
by p1gnone
Thu May 27, 2010 11:53 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: M13: The Great Globular Cluster in... (2010 May 27)
Replies: 28
Views: 3174

Re: APOD: M13: The Great Globular Cluster in... (2010 May 27

Comparing the 3ly on a side at the center of the cluster to 4ly to the alpha centauri system: place the Sun at cube center with the centauri system at a vertex, a corner, gives the smallest cube with side length computed: 4^2= sqrt(8)^2 + sqrt(8)^2 for half side length 2sqrt(2), side length 4sqrt(2)
by p1gnone
Fri Jul 17, 2009 11:32 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD 17 July 2009 - Starburst Galaxy M94
Replies: 8
Views: 1563

Re: APOD 17July 2009

I see, without caption comment, a faint disk DOUBLING the radius of the apparent galactic disk. Any ideas on this larger disk?
by p1gnone
Fri Jul 27, 2007 11:31 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Tidal Tail of NGC 3628 (2007 Jul 27)
Replies: 19
Views: 6123

APOD: The Tidal Tail of NGC 3628 (2007 Jul 27)

http://apod.nasa.gov/apod/ap070727.html

regarding the The Tidal Tail of NGC 3628 of July 27: who was the galaxy that stretched the tail out? Is it out of the view of this image, or due to a no longer obvious motion of one of the other 2 [m65 m66] galaxies in the triplet?