M20 The Trifid Nebula Revisited
M20 the Trifid Nebula H II region in Sagittarius
A combination of an open cluster of stars; emission nebula (the lower, red portion),
reflection nebula (the upper, blue portion) and dark nebula.
The dark nebula (Barnard 85), Gives the nebula its three lobed appearance.
The nebula's distance is uncertain, with values given between 2,200 light years to about 9000" light years.
Luminance taken the morning of June 30, 2016 at Cherry Springs State Park
Celestron C8 @ F7.5 with Starizona reducer\corrector 1500mm EFL
QSI583wsg, Baader filters
L 48 x 5 minutes binned 2x2 4 hours total exposure
RGB color taken 8/12/09 from Pulpit Rock. Celestron C8, Meade 0.63 redcuer, QSI 583WSG, Baader color filters
A combination of an open cluster of stars; emission nebula (the lower, red portion),
reflection nebula (the upper, blue portion) and dark nebula.
The dark nebula (Barnard 85), Gives the nebula its three lobed appearance.
The nebula's distance is uncertain, with values given between 2,200 light years to about 9000" light years.
Luminance taken the morning of June 30, 2016 at Cherry Springs State Park
Celestron C8 @ F7.5 with Starizona reducer\corrector 1500mm EFL
QSI583wsg, Baader filters
L 48 x 5 minutes binned 2x2 4 hours total exposure
RGB color taken 8/12/09 from Pulpit Rock. Celestron C8, Meade 0.63 redcuer, QSI 583WSG, Baader color filters
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Thanks Sandra, TBT, finally getting back home and looking at it on my desktop I'm not really satisfied. I've reprocessed it using DSLR data from 2014 for color. Update 7/30/16
Sandra Repash