C2012/S1 ISON in Gemini, on March 3 8:12pm PST (March 4, 04:12 UT). The comet is near the center of
the frame with a short tail visible. The star just above and to the left of comet ISON, is the 14th
magnitude star 3UC 243-078380. The brightest star in the field (upper right), is TYC 2436-451-1 at
magnitude 11.14. Imaged with CCD Lab’s Q285M camera and a Celestron EdgeHD 9.25 at f10, on a
Losmandy G11/Gemini mount. The field of view is approximately 13 x 10 arc minutes. The L subframes
were 3 minutes for a total of 51 minutes total exposure. Captured with Nebulosity, calibrated and
sigma combined in Iris with other processing using PixInsight LE and Photoshop CS. North is up.