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Open Cluster |
| Object : | M 37 |
| Coordinates/Direction : | RA: 05h52m, DEC: +32o33' |
| Object size : | 24' |
| Object magnitude : | 6.2 |
| More to know : |
Wikipedia: https://en.wikipedia.org/ wiki/ Messier 37 |
M37, 2023-10-07
(click on the image to get a full resolution photo in a new window) |
| Date : | 2023-10-07 |
| Time (UT) : | 21:48 - 23:12 |
| Mount : | SkyWatcher HEQ5, belt modified, low rider |
| Guide : | QHY5 camera with 200 mm f/3.5 lens |
| Lens/telescope : | Pentax 645 300 mm ED f/4 (medium format lens) |
| Corrector/Barlow : | - |
| Field (FOV) : | 6.8x4.5o (full frame) before crop |
| camera : | Canon 6D, QE=0.5, full frame, 20 Mpixel, 14 bit |
| camera temperature: | About 6o C above surrounding temperature |
| Film/CCD : | Raw, Cr2 |
| Filter : | none |
| Control system: | Mount, camera, focus, guide (Ekos) controlled by Astroberry (KStars/Ekos Linux) |
| Exp. time : | 60x60 seconds, iso1600, dithering mode |
| Image process tool : | Siril, Gimp, Irfanview |
| Processing : | cal bias, flat, photometric color calibration |
| Weather : | Clear sky |
| Site : | Sweden, Stockholm, Hagsätra.
Bortle 9 Free view Az: 20o to 90o, 165o to 185o, Alt: 20o to 55o |
| Comment : | The open cluster M37 with Milky way in the background. Discovered 1654 by an Italian astronomer. About the angle size of the Moon, 0.5 degree, and at a distance of 4500 ly. Of its 500 stars at least ten are red giants. Upper right is another open cluster, M36. Other objects that surround the cluster can be seen here: M37 plate solved with Astrometry. Opens in a new window. |
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