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The four Mousquetaires of the summertime
Hi All,
The four big nebulae that are M 8, 16, 17, and 20 are very often observed, often sketched, but not often compared, specialy concerning their colours through big apertures.
Here are what I've seen, with or without filters.
Detailed reports are hereunder:
M 8: http://www.deepsky-drawings.com/m-008-t508/dsdlang/en
M 16: http://www.deepsky-drawings.com/m-016-t635/dsdlang/en
M 17: http://www.deepsky-drawings.com/m-017-t635/dsdlang/en
M 20: http://www.deepsky-drawings.com/m-020/dsdlang/en
Clear skies
Bertrand
http://www.deepsky-drawings.com/dsdlang/en/
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