Imaging telescope or lens: StellarVue SV70T
Imaging camera: QSI 683WSG-8 OAG QSI 683
Mount: Skywatcher NEQ6
Guiding camera: Starlight Xpress Lodestar Off Axis Guider
Accessory: Kendrick Standard Dual Channel Controller
Dates: June 3, 2016
Integration: 20.0 hours
Avg. Moon age: 27.67 days
Avg. Moon phase: 3.87%
Astrometry.net job: 1109244
RA center: 271.295 degrees
DEC center: -23.790 degrees
Pixel scale: 3.280 arcsec/pixel
Orientation: -41.765 degrees
Field radius: 1.779 degrees
Locations: Burwood, Melbourne, Victoria, Australia
Inspired by Van Gogh's famous still life painting - "Sunflowers" and an APOD from 2007 here we have the Sagittarius triplet in glorious narrowband, taken from my light polluted suburban backyard in Melbourne, Australia.
Approximately 20 hrs exposure in all in 20min subs. 7 Hrs Ha, & 8 hrs S2 and 5 hrs O3 (All 5nm Astrodon filters) with RGB stars, 15 x 1min R,G&B.
Very tricky to process with the brightness range being extreme over these three objects. The M8 core and M20 are insanely bright, and NGC 6334 is very dim. Also the surrounding area is rich in Ha and S2 so they needed to be toned down to emphasise the "flower vase" structure. I wanted to "respect the light" but I had to compensate by dimming down certain areas for an overall pleasing aesthetic effect.
Havn't seen too many Sagittarius triplets with this NB treatment and composition, so I hope you like it and thanks for looking!
UPDATE: Image chosen as NASA APOD June 24th, 2016
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