Search found 5 matches
- Thu Jan 05, 2012 10:27 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ringside with Titan and Dione (2012 Jan 05)
- Replies: 22
- Views: 4684
Re: Funny curvature
The ring shadows and the limb of Saturn appear to be curving the wrong way. I thought this might be an optical illusion, but using a piece of paper against my screen as a straightedge, I confirmed that they curve slightly downward at the ends. At the distances sighted, I can't conceive that it's a ...
- Thu Jan 05, 2012 4:32 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ringside with Titan and Dione (2012 Jan 05)
- Replies: 22
- Views: 4684
Re: APOD: Ringside with Titan and Dione (2012 Jan 05)
Here is an alternative link to "this Cassini snapshot" from CICLOPS. Thanks for that link. The cleaner image shows that this does indeed look like a cloud band. ON closer examination, this band thins as you go south, but continues to the south pole, creating that dark 'ring' in the upper ...
- Thu Jan 05, 2012 4:11 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ringside with Titan and Dione (2012 Jan 05)
- Replies: 22
- Views: 4684
Re: APOD: Ringside with Titan and Dione (2012 Jan 05)
Has anyone else noticed the dark arc in Titan's atmosphere, appearing to come off the surface at about 20-30 degrees from north, on both sides? At first I thought it was a shadow, but it's darkening Saturn, and it's on both the day and night side. Could this be a plume from a volcano that's located ...
- Tue Nov 25, 2008 9:37 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Glaciers on Mars (2008 Nov 24)
- Replies: 23
- Views: 2189
Re: Glaciers on Mars (2008 Nov 24)
I don't see any duplicate crater pairs , and the blurring appears to be blowing dust. Take a close look at these. A simple check is to tilt your head and cross your eyes so these craters overlap. Another check would be to load this into Photoshop and select one and place it over the other with a bi...
- Tue Nov 25, 2008 8:17 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Glaciers on Mars (2008 Nov 24)
- Replies: 23
- Views: 2189
Re: Glaciers on Mars (2008 Nov 24)
I've been a frequent visitor to the Astronomy Picture of The Day for several years now, going back to the late 90's. During that time, I've noticed a few images (entire pages, actually) get repeated on occasion. Today I noticed something else repeated, and it's in today's image. It jumped out at me ...