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Arp 104 - Keenan's System
About this observation
Observer
Peter Goodhew FRAS
Time of observation
01/05/2020 - 08:39
Object
Arp 104 - Keenan's System
Observing location
Fregenal de la Sierra, Spain
Equipment
APM TMB 152 LZOS Refractors
10Micron GM2000 HPS mount
QSI6120wsg8 cameras
10Micron GM2000 HPS mount
QSI6120wsg8 cameras
Exposure
Astrodon Blue: 16x300" Astrodon Green: 17x300" Astrodon Red: 18x300" Astrodon Luminance: 81x600" Total Integration: 17.8 hour
Tags
Arp 104, also known as Keenan's System, is a pair of gravitationally interacting galaxies (NGC 5216 and 5218). It was first noted by William Herschel in 1790. It is located in the constellation Ursa Major at a distance of about 17 million light-years from Earth. The connecting string of gas, dust and stars between the galaxies is about 22,000 light-years long. Also in this field of view is a large collection of other small and medium galaxies.
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