Herschel 333
NGC 6440
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Object Type
|
Globular Cluster
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|
Constellation
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Sagittarius
|
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Magnitude
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9.3
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Size
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4.4' x 4.4'
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Combination of 15, 1 minute images unfiltered.
SBIG STL-1001E CCD. 20" f/6.8 Dall-Kirkham cassegrain telescope at prime focus.
Visual Observation Notes:- NGC 6440.
Moderately large and fairly bright. Some slight resolution.
18" f/5 newtonian. 16mm nagler eyepiece. 143x.
Sky View observatory. Zenith limiting magnitude 6.7.