Desaru Orion Nebula

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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Desaru Orion Nebula

Post by Meng Lee »

Hi all,

Takem at the desau trip with autoguider not working or rather the mount has too much backlash. Luckily can salvage this image.

EQ-3, Canon 350D, 35sec sub.

Image
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weixing
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Post by weixing »

Hi,
Hmm... look very nice... especially the details in the trapezium area. :D :D Any tip on how to preserve that area from saturation??

Anyway, the Running Man Nebula really have the look and feel of those logo for the Beijing 2008 Olympic Games... hee hee :mrgreen: :mrgreen:

Have a nice day.
Yang Weixing
:mrgreen: "The universe is composed mainly of hydrogen and ignorance." :mrgreen:
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Meng Lee
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Post by Meng Lee »

Hi,

Its ironical that the pic is highly underexposed, so the core region is unsaturated in the 12 bit RAW range. Then stacking a large number of images (around 80), the signal of the outer nebula region is high enough so that the Highlights function of Photoshop can bring it out, so I have the outer regions and central core both in control.
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cataclysm
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Post by cataclysm »

Nice pic, Meng Lee!
Which ota did you use? The 115 Vixen?
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Meng Lee
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Post by Meng Lee »

Hi,

I used the Megrez 80 FD.
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rcj
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Post by rcj »

Hi Meng Lee,

Nice details! Glad u got some decent data from the trip!
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Tachyon
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Post by Tachyon »

Just wondering why is there a tiny 'bud' next to a lot of stars in the picture? They look like multiple binaries...
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Meng Lee
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Post by Meng Lee »

Hi all, thanks for looking.

Nice observation Andrew. Its due to poor matching in the stacking due to small play in the T-ring resulting in the focal plane not flat. I cropped quite a bit of the image to remove those parts.
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Post by rcj »

ML mentioned that autoguiding was not very good and mount had severe backlash.... bud-like stars result from slight displacement.
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Meng Lee
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Post by Meng Lee »

Hehe, next time GPD2 with SS2K shall be the travelling photographic mount. This is the consequence of skimping on the mount quality, hehe.
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