NGC 6946 and NGC 6939 (Cep)

NGC 6946 and NGC 6939 (Cep)

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Date/Site: 9. September 2022. Remote observatory on the AAR club's site in Presberg
Exposure/
Filter:
RGB: 75 x 300 seconds (-10°C)
Camera/
Optics/
Instrument:
Touptek 294CP on 150mm f/5 Newton with 2" Skywatcher Comacorrector
Data acquired remotely with N.I.N.A.,
Guiding: ASI120 attached to a 61mm-finder,
Focusing with Microtouch,
Calibration and processing: PixInsight 1.8

During a September's night enough frames were acquired with the 6"-Newton and the Touptek to show the beautiful pair of the spiral galaxy NGC 6946 and the open cluster NGC 6939 together with a dense star field of our local home galaxy plus a sprinkling of interstellar dust.
Im August of the previous year I imaged the NGC 6946 alone with the White Elephant.
Even in the early days of my astrophotography adventure I imaged this pair:

NGC 6946/6939 (Cyg/Cep)

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Date/Site: September 21., 2006, AAR-observatory in Presberg
Exposure/
Filter:
7 x 10 minutes
Camera: Canon EOS 300D
Optics/
Instrument:
4"-TMB-refractor on the Gemini 41-Field mount of the AAR
focusing by hand through a right angle viewer of the camera
webcam-guiding with MaximDSLR through a 4"-FH-refractor
darks: Fitswork,
aligning and stacking: Regim,
levels and curves: Photoshop CS

 

© Friedhelm Hübner, last revision:  03.12.2023