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Old 22-03-2009, 09:05 AM
tornado33
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Dark comets 1 and 2 in Puppis

Hi all
Here are two Cometary Globules in Puppis. They point towards the east (image runs east west, north is up).
The image is technically a IR RGB, as I deliberately used no filter at at on the modded 350D, allowing infra red light in, which penetrates all three colours on the bayer filter on the sensor.

This pushing my gear to the limit with these low surface brightness objects. Image is 12 x 10 mins, total 2 hours, with the 6 inch F3.6 SN. MPCC coma corrector.

I was concentrating on CG1, as it is the brightest intending to do CG2 separately, but both fitted in. I didnt realise that till Id taken the images as CG2 doesnt show up on the subs, its that faint! Only the bright nose of CG1 shows up on the subs.

There is a 3rd isolated globule upper left and a much fainter one behind and up a bit from CG1.

Ive always been fascinated by these very elusive objects, with their beautiful brown colour. This is the first colour image Ive ever seen of these globules

I may have just started to record some very faint clouds (galactic cirrus) along botom of image. Theres a few internal refections in the image.

They almost cry out for Strongmanmike to image them with his rig with a many hour imaging run

Larger pic here

EDIT: Another set of dark comets, these are collectively known as CG 31, A, B, C, and so on. This is 1 hours worth, (6x10 mins same setings)
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Last edited by tornado33; 22-03-2009 at 09:43 AM.
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  #2  
Old 22-03-2009, 09:53 AM
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theodog (Jeff)
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Nice one Scott.
The wide field does show where they are.
Here's my CG1 from last year.
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  #3  
Old 22-03-2009, 09:57 AM
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spearo (Frank)
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very well done
would have been a challenge to acquire
great capture
something to be proud of
frank
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Old 22-03-2009, 02:17 PM
tornado33
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Thanks.
Nice one Jeff, what was the exposure times on that?
Scott
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Old 22-03-2009, 02:29 PM
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theodog (Jeff)
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Sorry Scott
From the Fits headers -RGB 3x10min each.
Given the date it was taken they were probably through the 10".
Your image is far more "dramatic" given the wide field.
Hope you get further than me through the CG's.
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Old 22-03-2009, 03:52 PM
tornado33
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Thanks mate, I do plan to image more of these. Oddly enough I was unable to use the 10 inch on CG1 as ther was no usable guidestar for the off axis guider. The 6 inch scope is faster anyway. I might even try the 300mm f2.8 lens on them.
Scott
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Old 22-03-2009, 10:23 PM
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Got the Cords for CG1?
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Old 22-03-2009, 10:34 PM
tornado33
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CG1 is at RA 07 h 19m 09s dec -4 33 09
This publication has co ords for all the globules in the Vela area
Scott
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Old 22-03-2009, 10:36 PM
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Very faint images for sure, but with lovely work done to bring them out. Well done.
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Old 23-03-2009, 04:52 PM
stephend
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Fan tastic, maybe you can talk about this at NAS on Friday?!
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Old 23-03-2009, 09:13 PM
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I agree, wonderful work.
The colours are just magnificent Scott.

Looking forward to more of these lovely elusive objects.
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Old 26-03-2009, 09:25 AM
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alan meehan (Alan)
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well done scott,these are for sure a strange object
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Old 26-03-2009, 12:35 PM
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Excellent! I love dust!!

Tom
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Old 28-03-2009, 09:17 PM
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a quick go

around 70 mins per colour channel and 100 mins for Lum. Had trouble punching through the light pollution for this one. Would love to see a dark site version.
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