Astronomy and astrophotography under California stars
M8, M20, and Sagittarius Star Cloud
Nebulae in the Milky Way
M8 and M20 with a 105mm lens and Canon 60Da. Click for a larger version.
Other Names/Objects
Optics Canon EF 24-105mm f/4.0L Lens at 105mm & f/4.0
Mount AstroTrac TT320X-AG on Manfrotto 055XPRO-B Tripod
Camera Canon EOS 60Da DSLR
Exposure 60 minutes (20 x 3 minutes) at ISO 400
Calibration 15 darks | 0 flats | 0 bias
Air Temperature 74°F
Accessories Satechi TR-A Intervalometer | Manfrotto 804-RC2 Pan Tilt Head | Manfrotto 496-RC2 Ball Head
Location GMARS in Landers, California
Date September 15, 2012
Notes Processing: On-card acquisition. Calibrate, align and combine in ImagesPlus v4.75. Curves, sharpen, crop, resize, and JPG compression in Photoshop CS4.

Larger versions:
1800 x 1200 (~3.3 MB)