The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region located in Sagittarius. Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifid appearance; these are also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and peculiar object, and is thus a perennial favorite of amateur astronomers. [From Wikipedia] Acquired on July 8, 2013 from Adin, CA (GSSP 2013) Ha: 6 x 20m L, R,G,B: 6 x 10m each Total exposure time: 6 hours Main Camera: QSI 583 WSG Guide Camera: SXV Lodestar (on OAG) Mount: Astro-Physics Mach 1 Scope: Celestron EdgeHD 8" (FL: 2032 mm) SXV Adaptive Optics Image Aquisition software MaximDL Registed, Calibrated and Stacked in MaximDL Post Processed with PixInsight 1.8 and Photoshop CS6
Exposures: L: 24 x 900s R,G,B: 16 x 900s each Total exposure time: 18 hours Acquired from SRO (Sierra Remote Observatories) Scope: Takahashi FSQ106 Mount: Paramount ME Camera: QSI 683WSG
