Abell 779
Abell 779 |
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Object data of Abell779 |
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| Object type: | galaxy cluster | |
| Size: | 90' | |
| Magnitude: | ||
| Constellation: | Lyn | |
| Distance: | 300 Mio Ly | |
| Notes: |
The brightest member of Abell779 is NGC2832, a giant elliptical galaxy near the center of the galaxy cluster. NGC2832 builds a galaxy group with NGC2830 and NGC2831 (Arp315 = Holmberg123). The above image shows also the very distant quasar QSO J091830.41+334824.4, which shows a redshift z=3.91 and a brightness in green of 21.7 mag (see object identification and the 300% zoom image). The light of this quasar had to travel for 12 billion years to reach earth. |
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Exposure data |
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| Date: | 2009-04-14 + 15 + 18 + 20 | |
| Location: | Nussbach / Austria (400m) | |
| Telescope: | 12" Newtonian telescope (f=1120mm) | |
| Camera: | ST2000XM with CFW8 and SBIG Filters | |
| Binning: | L 1x1 / RGB 2x2 | |
| Exposure time: | L 34x12m / R 13x12m / G 13x6m / B 13x6m | |
| Exposure time total: | 12h 00m | |
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