| Object : | M56, Globular Cluster |
| Coordinates/Direction : | RA: 19h16m, DEC: +30o11' |
| Object size : | 8.8' |
| Object magnitude : | 8.3 |
| More to know : |
Wikipedia:
https://en.wikipedia.org/ wiki/ Messier 56 |
| Date : | 2016-03-11 |
| Time (UT) : | 23:25 to 00:53 |
| Mount : | EQ6 controlled by EQMOD |
| Guide : | PHD2 in dithering mode and QHY5 camera off-axis |
| Lens/telescope : | TS130, 910mm f7 (682mm, f5.3) |
| Corrector/Barlow : | Riccardi flat field corrector 2.5" x0.75 |
| Field (FOV) : | 3x2 degree, before cropping |
| Filter : | none |
| camera : | Canon 6D, controlled by APT |
| Film/CCD : | Raw |
| Exp. time : | 60x60 seconds, iso800 |
| Image process tool : | DSS, Fitswork, Irfanview |
| Processing : | crop, level, no cal dark&bias, only dithering |
| Weather : | clear |
| Site : | Sweden, Stockholm, Hagsätra. Bortle class 9 |
| Comment : |
M56 is as other globular clusters small islands of stars. This one much smaller and weaker compared to other objects. |
| Date : | 2016-03-11 |
| Comment : |
A close up into the cluster.
|
English
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