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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial 
Thread started 20 Jan 2012 (Friday) 07:55
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Andromeda galaxy from low-end 55-250 IS

 
huangyu84
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Jan 20, 2012 07:55 |  #1

total of 4 hrs of integration time from a light polluted sky. I'm planning to put 8 hrs on this target. The 55-250 IS was set to wide open at 250mm. I would say the result of astrophotography is not bad for this low-end zoom lens.

IMAGE: http://farm8.staticflickr.com/7162/6730683669_11e394db65_b.jpg



  
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TheBigDog
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Jan 20, 2012 08:05 |  #2

wow, i almost feel bad that I sold mine...Great job!
Can you give us an idea on your setup? I'm guessing you tracked this somehow


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huangyu84
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Jan 20, 2012 08:22 |  #3

Thanks for your comment.
Yes, it was tracked by an Astrotrac portable equatorial mount.It was 2 min exposure per each shot. I'm happy with this setup which only takes me 10 mins to setup and very easy to carry out. It is a great performer.

IMAGE: http://farm8.staticflickr.com/7142/6730800259_f440b8ea44_z.jpg



  
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Celestron
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Jan 20, 2012 08:30 |  #4

Does look great , what PP did you use ?




  
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victorelessar
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Jan 20, 2012 08:43 |  #5

very nice!


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cyberon
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Jan 20, 2012 09:28 |  #6

Very good!


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jsigone
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Jan 20, 2012 10:50 |  #7

very nice results. Star colors are bang on too!!


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mrbubbles
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Jan 20, 2012 12:36 |  #8

I want an astrotrac!!!


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edu
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Jan 20, 2012 13:22 as a reply to  @ mrbubbles's post |  #9

Great picture. Its always astonishing what can be done with quite simple equipment if one knows how to use it. I am looking for a used Astrotrac for long time now. But nobody wants to sell. And i know why.

The picture is still more remarkable seeing your spot with all this lights around.


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megrac
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Jan 20, 2012 13:25 |  #10

Those stars are very good for that lens wide open! I really like the star colours to. I only wish i could see this from NZ.


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CatchingUp
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Jan 20, 2012 14:11 |  #11

wow....nothing like reminding me what a rookie I am in this dept. lol Very nice shot.


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Acamacho
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Jan 20, 2012 15:05 as a reply to  @ megrac's post |  #12

Very nice! Regarding your astrotrac, provided you spend some time polar aligning it how long are you able to expose at 250mm?


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huangyu84
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Jan 21, 2012 13:14 |  #13

Celestron wrote in post #13737020 (external link)
Does look great , what PP did you use ?

I used deepskystacker, photoshop and pixinsight le for post processing.




  
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huangyu84
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Jan 21, 2012 13:19 |  #14

Acamacho wrote in post #13739074 (external link)
Very nice! Regarding your astrotrac, provided you spend some time polar aligning it how long are you able to expose at 250mm?

For my case, I can get maximum 4 min exposure with round stars at 250mm focal length. Astrotrac claims its accuracy is about +-5 arc second peek to peek in RA.




  
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huangyu84
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Jan 21, 2012 13:22 |  #15

I reprocessed the image of M31 and another short of m42 with the same setup made several days ago.

IMAGE: http://farm8.staticflickr.com/7152/6737057037_3cfecbc962_b.jpg

IMAGE: http://farm8.staticflickr.com/7155/6737056855_3b2345c08f_b.jpg

IMAGE: http://farm8.staticflickr.com/7034/6737533497_7f3db8629f_b.jpg



  
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Andromeda galaxy from low-end 55-250 IS
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