Comet Catalina US10 meets M101
in the morning sky
January 16, 2016

 An uncommon close approach of a bright naked eye (barely) comet with a well known deep sky galaxy is an imagers delight. Here, we can see in this wide field view the comet at the upper right with both dust and gas tails and on the lower left is the Pinwheel Galaxy - M101 in Ursa Major.

The humidity was 100% and the temp well below freezing at 3am when I shot this set, sheets of ice were coating everything and huge hairy frost crystals were growing all over the camera and telescope! Then the clouds moved in.

 Click here for a larger 1290 sized image

Field here is about 6 x 4 degrees
Instrument: Canon 100 - 400L lens set for 200 mm f/5, Platform: Astrophysics AP1200 Camera: Hutech Canon Xti at ISO 800 Exposure: 3 x 10m = 30m (+darks) Location: Payson, Arizona Elevation: 5150 ft. Sky: Seeing 4/10, Transparency 8/10 Outside Temperature: 25F - Really bad frost! Processing Tools: Maxim DL, Photoshop CS2 HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS