M51-DSI

M51 - The Whirlpool galaxy

R1

R3

R2

Luminanse

Telescope

Meade LXD75 10" SN

Imaging Camera

Meade DSI Pro II Mono

Meade DSI Pro II Color

 

 

Exposures :

 

 

 

 

 

 

 

Reduser/Corrector

FIlters

H-alpha 6nm

Date

2012

The Whirlpool Galaxy (also known as Messier 51a, M51a, or NGC 5194) is an interacting[6] grand-design[7] spiral galaxy with a Seyfert 2 active galactic nucleus[8] in the constellation Canes Venatici. Recently it was estimated to be 23 ± 4 million light-years from the Milky Way,[3] but different methods yield distances between 15 and 35 million ly. Messier 51 is one of the best known galaxies in the sky.[9] The galaxy and its companion (NGC 5195) are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars.[10]

 

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.(WIKI)