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Old 05-07-2010, 03:09 PM
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strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,694
Quote:
Originally Posted by multiweb View Post
Quite amazing all the data you got out of that noise. We're going to need sun glasses looking at your pics when you move up in aperture.
David Malin was very impressed too - considering his image was part of the composition I sent it to him for a look.

The surface brightness of this stuff is very low. It's a lot to do with the camera too, very low read noise at -30C and relatively sensitive plus reasonably careful calibration.

You are quite right, 20hrs with a 12" F3.8 say...would blow your eyes for sure

Mike
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