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Contains:  NGC 7023
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NGC 7023, 


NGC 7023

NGC 7023

Technical card

Imaging telescope or lens:TS Optics TS PHOTOLINE Triplet FPL-53 APO 102/715

Imaging camera:QHYCCD QHY9M


Guiding telescope or lens:50mm Guidescope

Guiding camera:QHY5L-II

Software:MSB Software Astroart 5StarToolsAdobe PhotoShop CS 3

Filter:Baader LRGB 2'' CCD Filters

Resolution: 1600x1200

Dates:July 11, 2016July 17, 2016

Baader Blue 2": 8x600" -30C bin 1x1
Baader Green 2": 6x600" -30C bin 1x1
Baader Red 2": 3x600" -30C bin 1x1

Integration: 2.8 hours

Darks: ~12

Bias: ~12

Avg. Moon age: 9.63 days

Avg. Moon phase: 69.26% job: 1168701

RA center: 315.391 degrees

DEC center: 68.162 degrees

Pixel scale: 2.754 arcsec/pixel

Orientation: 73.840 degrees

Field radius: 0.765 degrees

Locations: Southern Observatory, Triora, Italy

Data source: Traveller


Well, sometimes a lot of things went wrong on the same time. The images of NGC 7023 are a good example for this. The flat fields are not matching (possible to bright). Blue frames were taken when it was not really dark at all. Green images are okay, but together wit the blue ones they show heavy noise. In the half of the red images I had to rotate the camera to avoid collisions (don't work with three rotated red frames)...

... and here is the result. I apologise for the dark donuts and the absence of the cool dust structures. I will do this object again.



License: Attribution-NonCommercial Creative Commons

Sky plot

Sky plot


NGC 7023,