M 46
M 46 |
|
|
|
|
||
|
|
||
Object data of M46 |
||
| Object type: | Open star cluster (II2r) | |
| Size: | 27' | |
| Magnitude: | 6.1mag | |
| Constellation: | Pup | |
| Distance: | 5,000 Ly | |
| Notes: |
Messier 46 is a rich star cluster in the constellation Puppis. There are an
estimated 500 stars in the cluster, and it is thought to be some 300 million
years old. As a special and famous feature
which is also obvious in the above image, a planetary nebula (NGC 2438)
appears within the apparent borders of M46. This nebula is most probably not
a true member but is superimposed, or perhaps a passing guest. To the north of NGC 2438 another small and faint planetary nebula (M 1-18) is visible in the above image. |
|
|
|
||
Exposure data |
||
| Date: | 2017-11-18 + 2017-11-19 | |
| Location: | ATHOS Centro Astronomico / La Palma (900m) | |
| Telescope: | Astro-Physics 175mm f/8 Starfire EDF with field flattener (f=1452mm) | |
| Camera: | Moravian G4-16000 with Baader filters | |
| Binning: | L 1x1 / RGB 1x1 | |
| Mount: | 10micron GM3000 HPS | |
| Exposure time: | L 14x2min / R 7x2min / G 7x2min / B 7x2min | |
| Exposure time total: | 1h 10min | |
| Notes: | Image acquisition by CEDIC team (Bernhard Hubl, Christoph Kaltseis, Markus Blauensteiner) Image processing by Bernhard Hubl |
|
|
|
||