Sunday, 9 September 2012

M18



M18 / Black swan / NGC6613
Constellation - Sagittarius
Open cluster
Distance - 4000 Ly

Date - 9/9/12
Seeing - III
SQM - 21.3 (LM 6.3)

Telescope - 12" f/5
EP - 13mm Ethos X115 TFoV 0˚87

Sketch materials - white pastel and ink

Sketch notes
Didnt find this cluster very spectacular and couldnt really define the outline of the 'wing' of the swan even though the bright outline of 10th magnitude stars should of shown it? Will try again next year. :)

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