Antilhue - Chile
Antilhue - Chile
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| Designation | M 72, NGC 6981, Bennett 125 |
| Object type | Globular cluster |
| Coordinates | 20 h 54 min - 12° 32' Aquarius (Aqr) |
| Description | M 72 is one of the apparently
smaller and fainter globular clusters in Messier's catalog. It is situated
in the very western part of constellation Aquarius, close to the
inconspicuous group of four stars, M 73. M 72 is also one of the
more remote of Messier's globular clusters: at about 53.000 light
years, it lies a considerable distance beyond the Galactic Center.
It is of 9th or 10th apparent magnitude, with stars ranging magnitude 14
and fainter, but as it is so distant it is one of the more intrinsically
luminous globular clusters. It is not very concentrated,
however.
Click on the image for a higher resolution version. The field of view is 37 x 25 arcminutes with north towards the top (0°). |
| Exposure | LRGB 50:20:20:20 min @ -20°C ; all exposures 5 min unbinned |
| Camera | SBIG STL-11000 with Astronomik Type 2 filterset - selfguided with AO-L |
| Optics | RCOS 14.5" Ritchey-Chrétien @ f/9 (prime focus) |
| Mount | Astro-Physics AP1200GTO |
| Software | MaxIm DL/CCD, Sigma Pre Beta 11, Registar, Adobe Photoshop CS |
| Location - Date - Time | San Esteban (Chile) - 24Oct2006 @ 01:00 UTC |
| Conditions | Transparency 6/10, Seeing 5-6/10, Temperature + 13°C, dew |
