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View Full Version here: : NGC2438 and Calabash nebula


Stevec35
13-01-2014, 09:18 AM
This is a work in progress and colour will follow when the moon goes away. It's quite a deep Hydrogen Alpha shot (I may go even deeper) which shows the faint shell structure around NGC2438 and the faint Calabash nebula, a proto-planetary nebula, to the lower left. Mike's recent great shot also shows the Calabash quite clearly too.

Cheers

Steve

http://members.pcug.org.au/~stevec/ngc2438_STXL6303_RC.htm

strongmanmike
13-01-2014, 09:37 AM
Faint shells and a baby rattle, not seen on IIS before and now two in a week :thumbsup: cool

Good confirmation actually, that very outer shell is not complete...maybe with heaps more exposure the missing section might show..? I gave up (impatient :lol: )

Mike

RickS
13-01-2014, 10:14 AM
Nice work, Steve. Looking forward to the colour version!

Stevec35
13-01-2014, 11:28 AM
Thanks Rick. Hopefully shouldn't be too long.



Thanks Mike. Not sure exactly where I'm going to go yet - narrowband or HaRGB - perhaps both. A long SII exposure might be interesting because the Calabash contains lots of sulphur hence the alternative name of rotten egg nebula.

Stevec35
14-01-2014, 10:45 AM
Because there isn't much else to do at full moon except image in Ha I added some more to this image and it's now up to over 11 hours. Nothing much added to the overall result except it looks a bit cleaner now because I didn't have to stretch it as much.

Cheers

Steve

http://members.pcug.org.au/~stevec/ngc2438_STXL6303_RC.htm

tilbrook@rbe.ne
14-01-2014, 05:24 PM
Great stuff Steve!:thumbsup:

Interesting to have yours and Mikes images of NGC 2438, and with such detail!!
Your image really shows that faint outer shell quite well.

Cheers,

Justin.

Ross G
14-01-2014, 10:10 PM
Great capture Steve.

Ross.

Stevec35
14-01-2014, 10:24 PM
Thanks Justin. Hopefully the colour will look even better.