With my camera finally repaired I headed down to dark skies at Glen Aplin last weekend with the AP140 (Greg Bradley's "old" scope) for its first outing. My target for the weekend was the SMC which is presented here in LRGB. I also collected some Ha and Oiii and will be producing a RGB/NB blend some time soonish.
We had clear skies but there was a lot of moisture in the air and the seeing was pretty awful a lot of the time. Despite this the scope performed brilliantly and I'm very happy with the result. Perhaps a slight amount of tilt to be tweaked out...
Scope: AP140EDF = 771mm FL, Atlas focuser
Mount: AP900
Camera: U16M
Filters: Astrodon E series Gen 2 LRGB
Guiding: Lodestar / Borg 50mm guide scope
Image scale: 2.41 arcsec/pixel (drizzled to about 1.8 arcsec/pixel)
Exposures: 21x600s L, 6x900s R, 6x900s G, 6x900s G
Processing: PixInsight 1.8
The IIS image compression really kills this image so please take a look at the Astrobin version, preferably at high res!
Crap load of stars there Rick. Nicely resolved too. I like the star colours but I reckon it could do with some more contrast enhancement to make the nebulae more prominent. I think it is hard to see the nebulae. Then again there are a heap of stars.
The very small amount of tilt evident lower right in the full res shot is pretty inconsequential mate
Mike
Thanks, Mike. Yep, the scope is a keeper
Quote:
Originally Posted by Atmos
That's fantastic, totally agree with Greg... So many incredibly small tiny dots!
Thanks, Colin.
Quote:
Originally Posted by Paul Haese
Crap load of stars there Rick. Nicely resolved too. I like the star colours but I reckon it could do with some more contrast enhancement to make the nebulae more prominent. I think it is hard to see the nebulae. Then again there are a heap of stars.
Thanks, Paul. I agree but I'm going to concentrate on bringing out the nebulosity in the HaOiiiRGB version. I did a quick & dirty version already and it shows the SMC in a very different light (was that a terrible pun?)
Quote:
Originally Posted by gregbradley
They come up on Astromart every now and then. Keep an eye out for one.
Yes the 50100 perhaps? I don't think 10-12 electron read noise is a big deal on a widefield scope. No worse than the KAI11002.
Greg.
I try to keep away from Astromart but that's a good idea, thanks Greg. The 50100 would be a great size. Might have to start saving my US dollars.
Quote:
Originally Posted by Spookyer
Great starter Rick for the new scope.
Ta, Brett.
Quote:
Originally Posted by Slawomir
Very nice image Rick, I will use it as a reference when planning my next target - one of those regions with nebulosities within the SMC.
I will be certainly looking forward to your new images taken with this great telescope.
Thanks, Suavi! Have you seen the Clouds of Magellan web site? It's a good resource for cloud imaging.
Thanks, Paul. I agree but I'm going to concentrate on bringing out the nebulosity in the HaOiiiRGB version. I did a quick & dirty version already and it shows the SMC in a very different light (was that a terrible pun?)