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M83 Southrn Pinwheel


MarkS

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This one shot 17th May from my dark sky site north of Melbourne.

 

M83 (NGC5236) is commonly known as the Southern Pinwheel galaxy. It is about 15Mly away in Hydra, and is about 40 kly across.

It is a starburst galaxy, with many red and blue supergiants, a high rate of star formation, and 60 known supernova remnants. It's radio centere is displaced from its optical centre. This is thought to be possibly due to the cannibalisation of a smaller galaxy.

 

ASA10N in f/6.8 configuration; DDM60; STT8300M

RGB only; total exposure 4 hours. A fairly good night - best SQL 21.15. A lot of moisture in the air.

 

Mark

 

Incidentally, with the latest AS and Sequence beta versions I think AF has improved..

Edited by MarkS
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