Sunday, 3 August 2014

NGC 6633




NGC 6633
Constellation - Ophiucus
Open cluster
Distance 1200Ly
Mag 4.59

Date 3/8/14
Transparency -  Very good
SQM 21.33

Telescope - 16" f/4.5
EP - 26mm Nagler x84

Sketch notes
Very large, bright and stretching across nearly all the 1˚ FoV, fairly lose but stands out well against the background stars.

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