- Exposure: LRGB
- Luminance binned 1x1, RGB binned 2x2
- L 129.5m, R 87m, G 60m, B 39m
- Telescope: Stellarvue SV152 @ f/7.9
- Mount: MI-250 GoTo
- Camera: SBIG ST-10XME CCD, SBIG CFW-10
- AstroDon E-Series TruBalance Filters
- Location: Casa Cielo Observatory, Santa Barbara, CA
- Date/Time:
- Luminance:
- June 27-28, 2006, 22:37-02:23 PDT
- Red:
- July 2, 2006, 23:27-23:55 PDT
- July 3, 2006, 02:43-03:15 PDT
- July 4/5, 2006, 23:31-00:01 PDT
- Green:
- July 3, 2006, 00:05-00:37 PDT
- July 5, 2006, 00:07-01:31 PDT
- Blue:
- July 3/4, 2006, 23:36-00:30 PDT
- Processing: Taken in CCDSoft v5 using CCDCommander. Reduced, aligned, combined sub-exposures, Positive Constraint deconvolution to the Red and Green (to reduce star bloat) and to the Luminance, and RGB combine in CCDStack. Gradient removal in Photoshop with GradientXTerminator. Lab LRGB combine, selective bluring, contrast adjustment, and saturation boost in Photoshop.
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- Name: M20, The Trifid Nebula, NGC 6514, B85
- Type: Reflection/Emission Nebula and Star Cluster
- Constellation: Sagittarius
- Distance: 5200 light years
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