Abell 2151, Hercules Galaxy Cluster with ARP 272
Abell 2151, the Hercules galaxy cluster with many colliding galaxies, most notable ARP 272 is shown by the lines in this picture. These galaxies are around 500 million years away made mostly of spiral galaxies and relatively few elliptical galaxies.
ARP 272 is at a distance of 450 million light years, and consist of galaxies NGC 6050 left, and IC 1179 right. There is also a third smaller galaxy involved, above the two. The ARP designation is from Halton Arp's atlas of peculiar galaxies.
As of June 2016, this is my current distance record.
ARP 272 is at a distance of 450 million light years, and consist of galaxies NGC 6050 left, and IC 1179 right. There is also a third smaller galaxy involved, above the two. The ARP designation is from Halton Arp's atlas of peculiar galaxies.
As of June 2016, this is my current distance record.
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Equipment
- Celestron 11 on a CGEM mount, Atik 460EX monochrome, Starizona F7.5 coma corrector, Orion off axis guider, and Starlight Xpress Lodestar X2 autoguider for guiding.
Image
- Luminance only: 2X 3-Minute and 48X 6-Minute exposures (4.9 hours) at F7.5.
Maybe next year I'll shoot some chroma (color).
Software
- Nebulosity for image capture, calibration, stacking, and preliminary processing. PHD2 for scope guiding. Final processing is with Photoshop CS5.1 with Noiseware for noise reduction, and Gradient Exterminator for field flattening.
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