30/03/2025
Time Traveling...
To put things in perspective, when the light from this galaxy was created New Zealand had just split from Australia. Most of the earth was grass and kelp forests. 15 million years later, it falls onto my telescope in my back garden. Astrophotography feels like time travel.
The M83 "Southern Pinwheel Galaxy" is one of the closest spiral galaxies to our own spiral galaxy. The reddish/pink touches in the galaxy are ionized hydrogen (Hα) emissions which indicates they're star forming regions - worlds are being formed in those parts. It's classified as a 'starburst' region as it's creating new stars far faster than our own Milky Way.
All captured in Ōtautahi Aotearoa (Christchurch, New Zealand) with only about 6 hours of exposure time.
Integration: 75 × 300s lights (6h 15m total), with bias & flats
Telescope: Askar 103 APO
Mount: ZWO AM5N
Camera: ZWO ASI533MC Pro (OSC)
Filter: Antlia RGB Ultra
Guiding: ZWO ASI120 Mini on OAG
Processing: PixInsight (BlurX, SPCC, Graxpert, StarX, NoiseX, GHS, recombine and final touchups with the histogram)