Observation by Peter Goodhew FRAS: Arp 104 - Keenan's System

Uploaded by

Peter Goodhew FRAS

Observer

Peter Goodhew FRAS

Observed

2020 May 01 - 07:39

Uploaded

2020 May 05 - 07:42

Objects

Keenan's System (Arp 104)
NGC5216
NGC5218

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Constellation

Ursa Major

Field centre

RA: 13^h31^m
Dec: +62°40'
Position angle: -6°51'

Field size

0°37' × 0°24'

Equipment

APM TMB 152 LZOS Refractors
10Micron GM2000 HPS mount
QSI6120wsg8 cameras

Exposure

Astrodon Blue: 16x300" Astrodon Green: 17x300" Astrodon Red: 18x300" Astrodon Luminance: 81x600" Total Integration: 17.8 hour

Location

Fregenal de la Sierra, Spain

Target name

Arp 104 - Keenan's System

Title

Arp 104 - Keenan's System

About this image

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.

Files associated with this observation

NGC5216.jpg (1.9 MB)

Like this image

Jeremy Shears, Gary Poyner, Graham Winstanley, Callum Potter, Andy Wilson, Andrew Dumbleton, Peter Carson

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