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OBJECT

M45 - Pleiades (Seven Sisters)               (image above is reduced-size | other sizes:  medium , original)

Distance:  400 light years

Telescope Takahashi FS-60C @ f/6.2
Mount Takahashi EM200 Temma II
Camera QSI 540wsg @ -15C
Filters Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 14x10min L; 6x5min ea RGB (all bin1x1); AstroArt5, CS4 (cropped, 10xdarks/flats/fdarks/bias)
Date/Location

Notes
6 December 2013 - Las Cruces, NM

Just used Tak flattener as reducer adapter I had machined did not work out (backfocal distance was still a tad too long). Believe not optimal backfocal distance here, either (coma at corners was huge), so I still have some testing to do.

Copyright  Jeffrey O. Johnson

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