M33 (Tri)

M33 (Tri)

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Date/Site: 9. and 10. October 2021. Remote observatory on the AAR club's site in Presberg
Exposure/
Filter:
R: 12 x 300 seconds,
G: 12 x 300 seconds,
B: 12 x 300 seconds,
L: 51 x 300 seconds,
Hα: 24 x 480 seconds,
OIII: 16 x 480 seconds (-20°C)
Camera: Moravian G3-16200 with Astronomik Type II-filters
Optics/
Instrument:
250mm f/4,7 Newton with VIP-3010 Paracorr on 10Micron GM1000 HPS
Guiding: ASI120 attached to a 61mm-finder,
focusing: Microtouch and FocusMax,
data acquired remotely using CCD-Commander, PHD_Broker with PHD2/multistar-guiding and MaximDL 6,
processing: MaximDL 6 and PixInsight 1.8

M33 was often shown in the astro-fora this year in very high quality. Some photographers enhanced the prominent HII-regions of the galaxy by adding narrowband-data.
OK, I had to try it too. Of course, there could have been some more OIII-frames, but the enhancement is there alright.
 
Here is an older image, made with the QSI.

M33 (Tri)

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Date/Site: 31. October 2016, AAR-observatory in Presberg
Exposure/
Filter:
LRGB je 9 x 300 seconds (-20°C)
Camera: QSI 632 with SBIG- and Baader-filters
off-axis-guiding with Lodestar
Optics/
Instrument:
10" f4-Newton on AP1200, RCC1 coma-corrector
Focusing with RoboFocus and FocusMax,
automatic image acquisition with CCD-Commander and MaximDL 6,
calibration: MaximDL 6, processing: PixInsight 1.8

Imaging M33 is a must for every astrophotographer.

© Friedhelm Hübner, last revision:  03.12.2023