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NGC6656 M22

 

Object

NGC6656, M22

Constellation

Sagittarius

 
Location

 

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Size

 

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Magnitude

 

 
Type

Globular Cluster

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Instrument

8" F/2.6

Camera
STL-11000M
 
Exposure

5min Ha RGB

Date

August 2006

 

Notes: Bright objects like M22 require shorter exposures. Here a 5 minute exposure is short enough to allow resolution to the core of the globular while still showing some of the surrounding Milky Way stars. Exposures taken from a dark sky site at 8,400' elevation.

North is up...

 

  images and text © 2006- 2014 Dave Erickson