Abell 2256
Abell 2256 |
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Object data of Abell2256 |
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| Object type: | galaxy cluster | |
| Size: | 140' | |
| Magnitude: | brightest galaxy: 15.4 mag | |
| Constellation: | UMi | |
| Distance: | 750 Mio Ly | |
| Notes: | Abell 2256 is a collection of more than 500 galaxies 750 million light years distant and 10 million light years across. X-ray images show a double structure near the center of this cluster, which indicates the merging of two clusters. Newer publications found hints for a third cluster component. The brightest members of Abell2256 are: NGC6331 and UGC10726. |
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Exposure data |
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| Date: | 2008-07-27 + 28 + 31 | |
| Location: | Nussbach / Austria (400m) | |
| Telescope: | 12" Newtonian telescope (f=1139mm) | |
| Camera: | ST2000XM with CFW8 and SBIG Filters | |
| Binning: | L 1x1 / RGB 2x2 | |
| Exposure time: | L 29x12m / R 10x12m / G 10x6m / B 10x6m | |
| Exposure time total: | 9h 48m | |
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