Sky this Week

Comet P/2008 X4 (Christensen) on Jan. 19, 2009

by Vern on Jan.19, 2009, under Astronomy, Comets

Some have reported P2008X4 is brighter than Lulin, that doesn’t appear to be true, at least not through the Stellacam II. As you can see P2008X4 is fairly dim, I’d guess around Mag 11.
p2008x4christensen-2009-01

Image taken this morning just before 6 am. Sky was mostly clear, transparency was excellent, no wind, temperature was 41 °F, and turbulence about 6/10. Equipment used, Nexstar 11 telescope, F3.3 focal reducer, Stellacam II at casegrain focus. Thirty images taken for each frame, Stellacam at 9/14 gain, integrate 128 frames. Dark subtracted, flat field adjusted, aligned and stacked with DeepSkyStacker. Brightness enhanced, cropped, and animated with Photoshop Elements.

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