Search found 7 matches

by Atabakzadeh
Mon Mar 06, 2017 5:44 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: All Planets Panorama (2017 Feb 25)
Replies: 34
Views: 10094

Re: APOD: All Planets Panorama (2017 Feb 25)

and this panorama is 180° I'm RIGHT. No, you're not. You're not understanding how the image was made. It's a mosaic made between sunset and sunrise, as the sky was moving. It is possible with such an image to capture all of the ecliptic except about 20° on either side of the Sun, which will be too ...
by Atabakzadeh
Sun Mar 05, 2017 7:13 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: All Planets Panorama (2017 Feb 25)
Replies: 34
Views: 10094

Re: APOD: All Planets Panorama (2017 Feb 25)

... the question is whether the image as presented covers 360° along the ecliptic (i.e., is the distance between Antares & Aldebaran half the width of the screen?). Well, that's not possible with an image that is made over only three days and which excludes the Sun. The Sun is at the western ed...
by Atabakzadeh
Sun Mar 05, 2017 7:12 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: All Planets Panorama (2017 Feb 25)
Replies: 34
Views: 10094

Re: APOD: All Planets Panorama (2017 Feb 25)

I'm SURE, this is a 180° panorama as below: 1- Look to the horizon (e.g. west) 2- Turn your head up slowly until you see the sky above your head vertically. 2-1- Now you covered 90° of observable field. (right angle is 90°) 3- Continue rotating your head behind yourself to see the rest of the sky un...
by Atabakzadeh
Tue Feb 28, 2017 1:24 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: All Planets Panorama (2017 Feb 25)
Replies: 34
Views: 10094

Re: APOD: All Planets Panorama (2017 Feb 25)

This is 180 degrees panorama, not 360 degrees. The camera shoot sky from west to east, in upward direction. If this was a 360 degree panorama, then you could see the earth under your feet. Am I right? It's a space time composite shot from sunset west to sunrise east. So, this should compose a 180 d...
by Atabakzadeh
Tue Feb 28, 2017 6:48 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: All Planets Panorama (2017 Feb 25)
Replies: 34
Views: 10094

Re: APOD: All Planets Panorama (2017 Feb 25)

Hello.
This is 180 degrees panorama, not 360 degrees.
The camera shoot sky from west to east, in upward direction.
If this was a 360 degree panorama, then you could see the earth under your feet.
Am I right?

Thank you.
by Atabakzadeh
Tue Feb 28, 2017 6:25 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Four Quasar Images Surround a Galaxy... (2017 Feb 27)
Replies: 29
Views: 13839

Re: APOD: Four Quasar Images Surround a Galaxy... (2017 Feb 27)

Hello again
How you can rebut this hypothesis:
These five objects are exactly Five distinct spatial objects (stars, quasars, galaxies, etc.) visually aligned near each other, in view of an observer on Earth.

Thank you.
by Atabakzadeh
Tue Feb 28, 2017 6:13 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Four Quasar Images Surround a Galaxy... (2017 Feb 27)
Replies: 29
Views: 13839

Re: APOD: Four Quasar Images Surround a Galaxy... (2017 Feb 27)

Hello. About this picture: Why there are exactly four symmetric repeated image of this quasar around that central galaxy (acts as a gravity lens)? If that galaxy acts as a gravity lens, then the composed pyramid image of that quasar behind it, should be something like a "Ring". The light r...