Abell 39 (Her)

Abell 39 (Her)

Click on the image for a larger version

Date/Site: 21. July 2015, AAR-observatory in Presberg
Exposure/
Filter:
RGB: each 6 x 300 seconds,
OIII: 6 x 600 seconds (-20°C)
Camera: QSI 632 mit SBIG and Baader-Filtern,
Guiding off-axis mit Lodestar
Optics/
Instrument:
40cm f5 Newton on AP1200
Focusing with MicroTouch and FocusMax,
automatic image acquisition with CCD-Commander and MaximDL 6,
calibration: MaximDL 6,
processing in PixInsight 1.8

Inspired by a picture by Bernhard Hubl.

© Friedhelm Hübner, last revision:  20.08.2022