Abell 2390
Abell 2390 |
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Object data of Abell2390 |
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| Object type: | galaxy cluster | ||
| Size: | 20' | ||
| Magnitude: | 17.6 mag (brightness of 10th brightest member) | ||
| Constellation: | Peg | ||
| Distance: | 2.6 Billion Ly | ||
| Notes: | Abell 2390 is a distant galaxy cluster in constellation Pegasus, which is well known because of it's gravitational arcs captured by the Hubble Space Telescope. The above image does not show any hints of these arcs, but it unveils another interesting phenomenon: A faint nebula, which fills nearly the complete image field. The author assumes that this nebula is a part of the galactic cirrus. | ||
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Exposure data |
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| Date: | 2012-08-17+18+19+20 + 2012-09-08+09+16 | ||
| Location: | Nussbach / Austria (400m) | ||
| Telescope: | 12" Newtonian telescope (f=1120mm) | ||
| Camera: | ST2000XM with CFW8 and Baader Filters | ||
| Binning: | L 1x1 / RGB 1x1 | ||
| Mount: | WAM 650move | ||
| Exposure time: | L 69x12m / R 19x12m / G 19x12m / B 19x12m | ||
| Exposure time total: | 25h 12m | ||
| Notes: | |||
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