This very open cluster is exactly at the
center of the Cancer constellation. And it's in the middle of the four
central star of the costellation, visible in the image. M44 is also named
Behive clister because of the many stars that resemble a swarm of bees.
Another name for this cluster is Manger, because of the proximity of Asellus
Borealis e Asellus Australis, two stars whose names mean donkey.
See also:
|
Technical Data
|
| Optics |
Pentax 75 apocromatic
refractor, 75mm diameter |
| Focal Lenght |
500 mm |
| Focal Ratio |
f/6,7 |
| Exposure Time |
45 min exposure |
| Film |
Kodak E200 |
| Developement sensibility |
320 ISO |
| Location |
Pian dell'Armà
(PV, Italian Appennines), at 1400m |
| Date and time of exposure
start |
12 january 2002, 2.13
UT |
| Mount |
Meade 8" |
| Tracking |
ST4 |
| Temperature and humidity |
T=-6°C, RH=80% |
| Notes |
- |
