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Globular Clusters

Omega Centauri from Anza, CA

I had gone out to my clubs dark site for several nights to work on a widefield mosaic of the Orion/Gemini area, once that set I had some free time to shot a few objects I’ve always wanted to go for. I noticed Omega Centauri was barely above the mountains to the south around 1 am so I pointed the 6″ and snapped away. Seeing was excellent that night so even though it was very very low the color wasn’t too washed out.

Image Location and Date: OCA dark sky site in Anza, CA on March 22nd, 2012
Object: Omega Centauri
Mount: Orion Atlas EQ-G
Imaging scope: Omni XLT 150mm Newtonian
Imaging FL: 750mm
Imaging focal ratio: f5
Imaging camera: Canon 1100D (Rebel T3) Modded
Lights: 23x120sec @ ISO 800
Calibration: Darks, flats
Guide scope: Tair-3c with Orion StarShoot Auto Guider
Other details: guiding with PHD, captured with APT, stacked in Deep Sky Stacker and processed in PixInsight + Photoshop for final color adjustment.

Comet C/2009 P1 Garradd + M71

Image Location and Date: Julian Starfest on August 27th, 2011
Object: Comet C/2009 P1 Garradd + M71 in Sagitta
Mount: CG5GT
Imaging scope: 300mm Tair-3c lens
Imaging FL: 300mm
Imaging focal ratio: f5.6
Imaging camera: Modified Canon 350D
Lights: 7 x 300sec @ ISO 800 (35 Minutes)
Calibration: Darks
Guide scope: Antares 8×50mm finder with Orion StarShoot Auto Guider
Other details: guiding with PHD, captured with APT, stacked in Deep Sky Stacker and processed in Fits Liberator + Photoshop.

Omega Centauri from Tierra Del Sol

I got lucky here.

Image Location and Date: San Diego Astronomy Association Dark Sky Site @ Tierra Del Sol, March 29th 2011.
Object: NGC5139 Omega Centauri Cluster
Mount: CG5GT
Imaging scope: Omni XLT 150 Newtonian
Imaging FL: 750mm
Imaging focal ratio: f5
Imaging camera: Modified Canon 350D
Lights: 7 x 180sec, 22x ISO 1600 (43 Minutes)
Calibration: Darks, flats, bias.
Guide scope: Antares 8×50mm finder with Orion StarShoot Auto Guider
Other details: guided with PHD, captured with APT, stacked in DSS processed in Photoshop, ran through it with Noise Ninja

M15 from San Juan Capistrano

Image Location and Date: San Juan Capistrano, September 9th, 2010
Object: M15 Globular Cluster in Andromeda
Mount: CG5GT
Imaging scope: Omni XLT 150 Newtonian
Imaging FL: 750mm
Imaging focal ratio: f5
Imaging camera: unmodified Nikon D60
Lights: 40 x 60sec ISO 3200 (40 minutes)
Calibration: Darks, flats.
Guide scope: Antares 8×50mm finder with Orion StarShoot Auto Guider
Other details: guided with PHD, stacked in DSS processed in Photoshop

M3 from San Juan Capistrano

Image Location and Date: San Juan Capistrano on April 04, 2010
Object: M3 Globular Cluster in Canes Venatici
Mount: CG5GT
Imaging scope: Omni XLT 150 Newtonian
Imaging FL: 750mm
Imaging focal ratio: f5
Imaging camera: unmodified Nikon D60
Lights: 54 x 60 sec ISO 3200 (54min)
Calibration: Darks and Flats
Guide scope: Antares 8×50mm finder with Orion StarShoot Auto Guider
Other details: guided with PHD, stacked in DSS processed in Photoshop

M13 Hercules Cluster from Tierra Del Sol

I tried shooting an hours worth here but the wind ruined so many exposures that I only got 10 minutes at ISO3200 . I’ll come back to this in a month or two.