Hemisphere:  Northern  ·  Constellation: Cepheus (Cep)
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LDN 1251, 



    
        

            Chris White
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LDN 1251

Getting plate-solving status, please wait...
LDN 1251, 



    
        

            Chris White
Powered byPixInsight

LDN 1251

Acquisition details

Dates:
Oct. 6, 2016
Frames:
Blue: 105×45(1h 18′ 45″) (gain: 76.00) -20°C bin 1×1
Green: 105×45(1h 18′ 45″) (gain: 76.00) -20°C bin 1×1
IDAS LPS D1: 466×30(3h 53′) (gain: 76.00) -20°C bin 1×1
Red: 105×45(1h 18′ 45″) (gain: 76.00) -20°C bin 1×1
Integration:
7h 49′ 15″
Darks:
30
Flats:
50
Bias:
200
Avg. Moon age:
4.93 days
Avg. Moon phase:
25.11%

RA center: 22h32m21s.85

DEC center: +75°1136.0

Pixel scale: 1.283 arcsec/pixel

Orientation: -177.337 degrees

Field radius: 0.880 degrees

More info:Open 

Resolution: 4108x2739

File size: 8.1 MB

Description

EDIT: I forgot that I had a couple of hours of RGB on this target from a week ago. It was a little bit more out of collimation so I wasn't going to use it. I added it for the second revision and I think it really helped out the color balance. Goes to show that integration time trumps most everything else.

Second light with my new Powernewt. I'm still learning how to collimate this scope and I'm getting better but still have a ways to go. (After this image session I found that one corner of my focuser was not drawn tight to the OTA. That helped a ton with my next captures, but did not benefit this data any) I had a lot of challenges getting this data. The seeing was terrible and the dew was so heavy that it was almost like mist. My secondary kept fogging up, and I think my red channel focus was off a tiny bit. Also my camera window fogged up, which I hadn't experienced before. Manual calibration with PI produces some VERY strange results so I need to see where I went wrong there. I ended up running each channel through BPP which fixed all the problems I hit with Manual Integration, but resulted in a lot more noise. I'd call this a WIP, but having fun with the new scope and enjoying the challenges.

Comments

Revisions

  • LDN 1251, 



    
        

            Chris White
    Original
  • LDN 1251, 



    
        

            Chris White
    B
  • LDN 1251, 



    
        

            Chris White
    C
  • LDN 1251, 



    
        

            Chris White
    D
  • Final
    LDN 1251, 



    
        

            Chris White
    E

Sky plot

Sky plot

Histogram

LDN 1251, 



    
        

            Chris White

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