NGC3642 - HaRGB - group project (Victor Van Puyenbroeck)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3642

NGC3642 - HaRGB - group project

Revision title: HaRGB

NGC3642 - HaRGB - group project

Revision title: HaRGB

This might be the first amateur Ha-RGB image of spiral galaxy NGC 3642. We could find only a handful high-resolution (L)RGB images online. Mouse-over shows pure RGB without H-alpha.

The structure of this galaxy was very interesting: the core contains a tiny one-armed minispiral, surrounded by a flocculent nuclear ring, and faint warped outer pseudoring. We were able to pick up some star forming regions in Halpha. A nice bonus was the yellow ring-type galaxy PGC 2585851 on the left side of the frame.

Image data collected by:
Menno Jansen (initiator): Netherlands / Baader IR/UV cut + L-eXtreme / Meade LX200 8" f/10 / ASI071MC Pro
Martin Schoenmaker: Netherlands / L-Pro + L-eXtreme / EdgeHD 8" f/10 / ASI294MC Pro
Bart Speet: Netherlands / Baader RGB / Maksutov Newton 190 / ASI 294 MM Pro
Victor Van Puyenbroeck: Belgium / AstroDon RGB / ONTC Newton 200/800 / ASI1600MM-C

Data combination and processing by: Victor Van Puyenbroeck

Total exposure: 25h RGB + 10h Ha
Acquisition between May 2022 - May 2023.

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Title: HaRGB

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NGC3642 - HaRGB - group project

Revision title: HaRGB

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