asteroid

19 Fortuna

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Observations (2)

Fortuna, one of the largest main belt asteroids (top right), captured while shooting the Crab Nebula. Histogram stretched

Exposure22 frames of 5 minutes each. Approx. 2 hours total TelescopeCelestron CPC 800 EQ Mount (with Wedge) with f/6.3 Focal Reducer CameraQHY-8 Filter2" Hutech IDAS Light Pollution Suppression GuidescopeOrion EON 80mm ED GuiderDMK 21AU04 with PHD Guiding Magnitude9.49 Distance1.39 au Dimensions225x205x195km Date18th October 2009

Same shots with the histogram unstretched, to better show the asteroid

Date18th October 2009