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Contains:  NGC 5218, NGC 5216
Getting plate-solving status, please wait...
Arp 104 - Keenans system, 





    
        

            Algorab
Arp 104 - Keenans system

Arp 104 - Keenans system

Technical card

Resolution: 1929x1458

Dates:Feb. 24, 2018

Frames:
Baader 36mm L: 48x180" -30C bin 1x1
Baader 36mm Blue: 10x180" -30C
Baader 36mm Red: 11x180" bin 1x1
baader 36mm Green: 16x180" -30C

Integration: 4.2 hours

Avg. Moon age: 8.62 days

Avg. Moon phase: 63.05%

Astrometry.net job: 1985943

RA center: 203.043 degrees

DEC center: 62.742 degrees

Pixel scale: 0.656 arcsec/pixel

Orientation: 82.992 degrees

Field radius: 0.220 degrees

Locations: Säule, Siegen, NRW, Germany

Description

A more exotic object. Interrupted the exposure of Arp 214, I have decided to test my setup on this objects in the early hours of the night. The bridge of intergalactic material is 124000ly long and visible quite well, even in some moonlight and with very poor seeing.

Wikipedia: "Arp 104, also known as Keenan's system, is entry 104 in Halton Arp's Atlas of Peculiar Galaxies catalog for spiral galaxy NGC 5216 and globular galaxy NGC 5218.[2] The two galaxies are joined by a bridge of galactic material [...].

In 1790 William Herschel discovered the galaxies, and in 1926 they were studied by Edwin Hubble.[2] In 1935 Philip C. Keenan first published a paper about the bridge connecting the galaxies,[2][10] which was rediscovered in 1958 at the Lick and Palomar observatories."

Comments

Author

Algorab
Algorab
License: None (All rights reserved)
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  • Arp 104 - Keenans system, 





    
        

            Algorab
    Original
  • Arp 104 - Keenans system, 





    
        

            Algorab
    B
  • Final
    Arp 104 - Keenans system, 





    
        

            Algorab
    C

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C

crop

Sky plot

Sky plot

Histogram

Arp 104 - Keenans system, 





    
        

            Algorab