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  #1  
Old 18-03-2014, 10:13 PM
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nebulosity. (Jo)
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Single Sub M20
I was having a tour around the sky the other morning enjoying the GoTo and tacking images of stuff and I was pretty impressed with this quick pic of M20.

8 inch f6 newt, Canon 1100D, ISO 6400, single 40 second exposure.

Imagine doing this 50 years ago!

Cheers
Jo
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  #2  
Old 18-03-2014, 10:18 PM
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Also M16 and M17.
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  #3  
Old 18-03-2014, 10:28 PM
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Neat images for single subs.
It's amazing how quick things are advancing in regards to imaging. I'd be stoked if I could replicate those efforts.
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  #4  
Old 18-03-2014, 10:33 PM
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Originally Posted by nebulosity. View Post

Imagine doing this 50 years ago!
I can't do it now. Weather too hot, sky too bright.
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Old 18-03-2014, 11:26 PM
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I was comparing a single of jupiter to one taken by the 200inch Mt Palomar in 1970 my 8" did a better job by a long margin
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  #6  
Old 18-03-2014, 11:51 PM
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Three great images Jo; what did you do with all the noise? Where did you
put it?
raymo
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  #7  
Old 19-03-2014, 07:45 AM
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Thanks Jarrod and Kevin
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Old 19-03-2014, 08:01 AM
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The Jupiter images are quite surprising!

Quote:
Originally Posted by raymo View Post
Three great images Jo; what did you do with all the noise? Where did you
put it?
raymo
I posted it to Kevin

To keep the noise down I generally attach the camera to the scope and focus and then go the bed, this give everything some time to cool off for a while before I get up around 1 or 2 am. Another important thing to do is to use live view as limitedly as possible, having the screen running generates a lot of unneeded warmth.

Cheers
Jo
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Old 19-03-2014, 09:40 AM
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I posted it to Kevin
Yes he did! lol.

How do you stop the dew from covering everything if you leave the gear out for so long?
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Old 19-03-2014, 10:50 AM
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Nice shots, Jo.
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  #11  
Old 19-03-2014, 12:10 PM
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Quote:
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How do you stop the dew from covering everything if you leave the gear out for so long?
DEW? Whats that??? It's bone dry out here, in fact, we are in the middle of one of the worst droughts since 1926 which is part of a long term drought that started the year before I was born!


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Old 19-03-2014, 12:13 PM
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Nice shots, Jo.
Thanks Bot
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  #13  
Old 19-03-2014, 02:02 PM
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Great stuff, I too hope to try such efficient imaging. I'm even wondering whether we might set up a new imaging category, eg max. 10 mins exposures. Sometimes I feel that ppl get far too carried away with truly insane exposure lengths, like 80 hrs or so!
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  #14  
Old 19-03-2014, 02:02 PM
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No dew, no cloud, cold temps. Dude, you live in astronomy heaven.
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  #15  
Old 19-03-2014, 02:41 PM
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I live in astronomy hell.
raymo
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  #16  
Old 19-03-2014, 02:59 PM
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Quote:
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I live in astronomy hell.
raymo
Careful or I'll send you some of my clouds
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  #17  
Old 19-03-2014, 06:31 PM
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We get plenty of clouds, but have had 2.8mm of rain in
the last 108 days.
raymo
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  #18  
Old 19-03-2014, 07:41 PM
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Single subs Jo... just wow
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  #19  
Old 19-03-2014, 07:56 PM
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Quote:
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Single subs Jo... just wow
Yeah, pretty impressive aye! I really love the 1100D, I should mention, in camera dark frame subtraction was turned off.

Jo
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  #20  
Old 19-03-2014, 08:19 PM
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Nice pictures Jo!

Cheers Craige
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