May 24, 2010

SH2-129, its a faint one!

After the complete disaster on Saturday night (my laptop PSU dying as I go to plug it in outside, scuppering the rest of thee vening completley), I was please to see that everything still works as it should when things go right.

I`ve had SH2-129 on my shortlist for a while now, its about the right size for the Borg77 + M25C combo, but its always been just a bit too low in the sky (its at the tail end of Cepheus, near IC1396 Elephant Trunk Neb).

With the moon glaring away in the sky, it had to be a Hydrogen Alpha evening, so I pointed at this target and let it run with 15 minute subs. I was a bit concedrned when almost nothing showed up in the first image!

This is 15 x 900s with the Baader 7nm filter… I think it needs a LOT longer subs and a lot more combined time to get this to show te better detail, including the Barnard dark nebula areas in the image (thats B150 on top right I believe). It will also do better when it is higher in the sky, but then there will be a whole load of interesting objects around then as well. Maybe I`ll return to it…. maybe..

Mount: EQ6 via EQMOD
OTA: Borg 77EDII @ f/4.3
Guiding: SW ED80 + SX Lodestar + Maxim
Imaging: Starlight Xpress M25C + MaximDL, 15×900s, Baader 7nm Ha (101 bias, 101 flats)
Orchestrated: CDD Commander
Stacked: DeepSkyStacker
Post Process: PSCS2

(Click on image for larger but noisier version)

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