09/08/2016
Come non condividere ...
Constellation: Canes Venatici.
Session: 03 Aug 2016 , 23:00.
Sorry for gradient.
The Whirlpool Galaxy, also known as Messier 51a, M51a, or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus in the constellation Canes Venatici. It was the first galaxy to be classified as a spiral galaxy. Recently it was estimated to be 23 ± 4 million light-years from the Milky Way, but different methods yield distances between 15 and 35 million light-years. Messier 51 is one of the best known galaxies in the sky. The galaxy and its companion, NGC 5195, are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars. The Whirlpool Galaxy is also a popular target for professional astronomers, who study it to further understand galaxy structure (particularly structure associated with the spiral arms) and galaxy interactions.
Source: https://en.wikipedia.org/wiki/Whirlpool_Galaxy
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SETUP:
Skywatcher Black Diamond, 250/1200 (f4.8) | Newton - EQ6 Pro | Refractor 80/400mm (f/5) | CCD (Orion StarShoot AutoGuider). | Filters: UHC-S Baader (2").
DATA:
Atik 414 ex mono. 1 hour and 22 min of integration.
L (UHC-S): 25x120s | binning 1x1 | cooled -4°c.
Sub (UHC-S): 25x30s | binning 1x1 | cooled -4°c.
Sub (UHC-S): 10x60s | binning 1x1 | cooled -4°c.
R: ---.
G: ---.
B: ---.
Darks | Flats | Dark Flats | Bias: 25 | 25 | 25 | 25 (also for subs too).
Notes: Monochromatic view, gradient.
DeepSkyStacker | Adobe Photoshop CS6.
| Cristian Cestaro | infinitalavita.com
