M 51 – The Whirlpool Galaxy
M51 – The „Whirlpool Galaxy“:
Actually this is two galaxies. The obvious spiral-galaxy and his unfortunate little companion to the north. Unfortunate, because the big one is ripping the smaller one apart. In the last few million years the smaller one was sucked right though the big one at least two times. The fuzzy part around the smaller one is actually clouds of stars that are ejected out of it by the immense tidal forces. The big galaxy also "stole" all the gas from the smaller one which is why the bigger galaxy produces a lot of new (blue) stars and the smaller galaxy only has old (red) ones.
This is only 16 images at 4 minutes each and 6 images at 10 minutes. By far not enough light for this one. Also the guiding was not good. That is quite typical for objects that are close to the celestial north pole. I probably will try again when M51 comes up again in late fall.
|Exposure:||16 x 360s, ISO800 + 4 x 600s, ISO800 + Darks|
|Camera:||Canon EOS 1100D, modified|
|Telescope:||10" GSO RC, 2000mm|
|Guiding:||OAG with Lodestar and PHD|
|EIP:||Fitswork and Gimp|