NGC 4945

NGC 4945 a.k.a Caldwell 83, barred spiral galaxy in Centaurus ~11.7 Mly away. One of the brightest galaxies in Centaurus A/M83 group, part of the Virgo supercluster.

Thought to be very similar to our galaxy with an unusual energetic Seyfert 2 nucleus which may host a supermassive black hole. PGC 45380 a Hubble-type SBm barred spiral galaxy ~53 Mly away can also be seen at the top right corner, looking like a star with emerging plumes.

HaLRGB image 26h 25m total, H alpha added to the red and blue channel using continuum subtraction technique. Data is from iTelescope.net and telescope.live.

iTelescope.net premium image set taken from a Planewave CDK 20" with FLI-PL09000 camera and Astrodon E-Series filters at Siding Spring Observatory Australia.
Dates unknown probably Feb-June 2022. Frames Ha 8 x 1800s, LRGB 24:12:10:9 x 900s.

telescope.live data is from CHI-1 Telescope, a Planewave CDK24 with FLI PL 9000 camera and Astrodon 2nd GEN LRGB filters, situated in the Rio Hurtado Valley, Chile. Part of the telescope.live network. Mulitple dates Jan-March 2021-22. Frames LRGB 4x6x300s, 4x10x600s.

Stacked in AstroPixelProcessor. Processed in PixInsight.