Submitted by Karl Battams on Thu, 10/24/2013 - 08:34
Comet C/2012 S1 (ISON) is a dynamically new sungrazing comet. This makes it a particularly unique object that we hope will be a big help in our understanding of Oort Cloud comets and primitive solar system material. Sungrazing comets are pretty useful in this respect, as they get much closer to the Sun that "ordinary" comets, and thus their surface gets much hotter than your typical comet.
Submitted by Karl Battams on Wed, 10/09/2013 - 08:23
There has been a lot of speculation brewing over the past few days that C/2012 S1 aka comet ISON may either have already fragmented and fizzled, or is about to do so at any moment. I'm not going to point directly to any sources that are making these claims as I don't think those articles deserve the web traffic. Instead, I'll let you judge for yourselves: does this look like a fizzled out comet?
Submitted by Karl Battams on Fri, 10/04/2013 - 07:59
We've had an observing calendar up on this site for a while now but, as you might expect, it's already getting rather crowded with proposed observations. So I thought maybe each week - time allowing - I'll highlight some of the upcoming proposed observations for the next week. So here goes...
This week: The Final Nail in the Coffin? When ground-based observers came up empty-handed in the hunt for ISON's remains, we turned to the Hubble Telescope to see if its ultra-powerful instruments could find anything...Earlier picks can be found in the ISON Image of the Week Archives. Note that this feature will become monthly, instead of weekly, in 2014.