NGC 457 (also known as the Owl Cluster, the ET Cluster, or Caldwell 13) is an open star cluster in the constellation Cassiopeia.
I shot this twice over the winter and used exposures of 150 seconds @ ISO400 and also 120 seconds @ ISO400. Each set was over 2 hours. In the end after processing both I decided the 120 second exposures were the better ones.
I've been working on M51, but the weather hasn't been cooperating very much...in fact the last really good night I've had was on 3/11. Tried imaging several nights after that and the Star count values as well as the FWHM/HFR from SGP were so poor, I just packed it in. Looks like things aren't improving either at least for another week or more.
NGC 457 / Caldwell 13 / Owl Cluster
- rjbokleman
- Posts: 517
- Joined: Fri Dec 19, 2014 11:09 pm
NGC 457 / Caldwell 13 / Owl Cluster
Ron B.
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
T5i/700D, ASI1600MM-C, ASI120MM, ASI174MM, XAGYL 7x36mm FW
Astronomik Deep-Sky(RGB), CLS, Ha, OIII, SII
SV60EDS 60mm f/5.5 APO
AT65EDQ 65mm f/6.5 ED Quadruplet
SW ProED 100mm f/9.0 Doublet APO
C8 EdgeHD, AT130EDT
AVX, iEQ45 Pro
http://www.astrobin.com/users/rjbokleman/
Re: NGC 457 / Caldwell 13 / Owl Cluster
Always been one of my favorite clusters in Cass. Great job.
Paul...
16" f/5 Night Sky Truss (Midnight Mistress)
10" f/5 Home built Dob with Parks mirror.
Pre-Meade PST
Celestron Skymaster Binos 25-125x80
Meade Travelview Binos 10x50
See that 16" in the sleek black dress? She is all mine. :)
16" f/5 Night Sky Truss (Midnight Mistress)
10" f/5 Home built Dob with Parks mirror.
Pre-Meade PST
Celestron Skymaster Binos 25-125x80
Meade Travelview Binos 10x50
See that 16" in the sleek black dress? She is all mine. :)
Re: NGC 457 / Caldwell 13 / Owl Cluster
Love it! Nice job, Ron!
"The purpose of life is the investigation of the Sun, the Moon, and the heavens." - Anaxagoras
Re: NGC 457 / Caldwell 13 / Owl Cluster
Beautiful image Ron.
I'm glad you were able to find the imaging time with the lousy astronomy weather we've been having.
I'm glad you were able to find the imaging time with the lousy astronomy weather we've been having.
Andy