|
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: 03.12.2023