NGC 185
NGC 185 |
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Object data of NGC185 |
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| Object type: | galaxy (dE) | |
| Size: | 12.5' x 10.4' | |
| Magnitude: | 10.3 mag | |
| Constellation: | Cas | |
| Distance: | 2.0 Mio Ly | |
| Notes: | NGC185 is a dwarf spheroidal galaxy about 2.0 Mio Ly away in the constellation Cassiopeia. It is a member of the Local
group of galaxies and a satellite galaxy of the Andromeda Galaxy. NGC185
builds a non interacting pair with NGC147, which
is outside the image field of the above image. NGC147 and NGC185 are both
dwarf spheroidal galaxies, but there is an obvious difference: Whereas
NGC147 is gas and dust free, NGC185 shows a considerable amount of gas and
dust clouds, as seen clearly in the center of the above image.
The 'noise' inside NGC185 visible in the above image is a hint for the beginning resolution of single stars inside this galaxy. The object identification indicates the positions of the known globular clusters of NGC185 (Ford, Jacoby and Jenner 1977). New observations with the Hubble Space Telescope showed that FJJ-VI is no globular cluster, but an elliptical galaxy. The above image shows that the colour of FJJ-VI is reddish compared with the colour of the other FJJ globulars. This is a sign for the elliptical galaxy nature of FJJ-VI. |
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Exposure data |
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| Date: | 2009-01-25 + 26 | |
| 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 16x12m / R 9x12m / G 9x6m / B 9x6m | |
| Exposure time total: | 6h 48m | |
| Notes: | Bad seeing during RGB exposures, bad transparency during luminance exposures. | |
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