Astrophotos from Punggai Trip 20th Feb 2009

CCD vs Film? Lots of time vs no patience? Alright, this is your place to discuss all the astrophotography what's and what's not. You can discuss about techniques, accessories, cameras, whatever....just make sure you also post some nice photos here too!
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Meng Lee
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Astrophotos from Punggai Trip 20th Feb 2009

Post by Meng Lee »

Hi all,

The weather at Punggai is mostly cloudy but the clouds pass and go very fast, so I am unable to capture full colour frames properly. So here goes 2 objects:

1) Comet Lulin (averted vision naked eye comet)

Stacked roughly over 1 hour
Image

Single Stretched frame
Image

2) Makarian Chain

Stack of 11 x 5 mins
Image

3) M83 (ongoing)

Red Channel ~ 30 mins
Image

Thanks for looking.
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Post by Airconvent »

Nice one Meng Lee
The Makarian Chain is beautiful!
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Tachyon
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Post by Tachyon »

Hmm... why didn't you use the Starshoot Pro? You would have obtained the color image of Lulin, no?
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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Post by rcj »

love the Markarian collection as well, ML! Keep it up!
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dewaperang
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Post by dewaperang »

ML, that was nice!!...how to get that?
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Meng Lee
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Post by Meng Lee »

Hi all,

I used the Pentax SDUF refractor and Atik 16HR camera with the L filter. Well, I didnt bring starshoot pro camera because of some adapter issue. Actually I meant the Pentax to go with the Starshoot Pro.
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Tachyon
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Post by Tachyon »

Oh dear.. sorry to hear that! Can share with us what the adapter issue was?
[80% Steve, 20% Alfred] ------- Probability of Clear Skies = (Age of newest equipment in days) / [(Number of observers) * (Total Aperture of all telescopes present in mm)]
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zackae
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Post by zackae »

My Word! The Chain is absolutely stunning! Man wanna see it with my own 2 eyes- a cluster of galaxies in 1 scope's field of view.
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cataclysm
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Post by cataclysm »

Nice shots Meng Lee! I like the M83 most.

Btw, do you experienced dewing/frosting on the front of the ccd sensor when the camera gets cold? And if it does how do you prevent it? I am tinkering with my DSI pro camera lately with peltier cooling, the the dew always get in the way when the camera cool down.
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Meng Lee
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Post by Meng Lee »

Oh, my Atik camera has a sealed chamber with dessicant. But on the worst nights, some droplets may appear and the donut on the screen never clears. Then the session ends. Otherwise it does not dew up.

1 stage cooling should be OK with a basic sealed chamber with dessicant. 2 stage (like remus's camera) will probably need a real tight sealed chamber with a few hours of fresh dessicant inside to prevent dewing. But i think on the worst nights, it will still dew up.
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