Messier 46

From Wikipedia, the free encyclopedia

"Messier 46 is an open cluster in the constellation of Puppis. It was discovered by Charles Messier in 1771. Dreyer described it as "very bright, very rich, very large." M46 is about 5,500 light-years away. There are an estimated 500 stars in the cluster, and it is thought to be some 300 million years old."

 Notice the small planetary nebula NGC 2438 overlying the larger cluster.

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Click on the Image for a Higher Resolution

Date :  December 2015

Location : Arizona Sky Village, Portal, Arizona

Equipment used :
 Lens or telescope -- AP 130 EDF with Field Flattner 
 Mount -- AP 1200
 Camera -- QSI 683wsg with Lodestar 2x guider


Acquistion Software : ACP, MaxIm DL, Focusmax
Processing Software : PixInsight, Photoshop

Exposure Detail : SynLRGB combine                                  Total hours = 2.75

Filter

# exposures

Time (sec)

Binning

Red

11

300

1x1

Green

11

300

1x1

Blue

11

300

1x1

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