Archive for January, 2009
Sky this Week for Jan. 25 to Jan. 31, 2009
by Vern on Jan.27, 2009, under Astronomy, Video
Sky this Week Video for Jan. 18 to Jan. 24, 2009
by Vern on Jan.22, 2009, under Astronomy, Video
Comet C2007 N3 (Lulin) on Jan. 19, 2009
by Vern on Jan.19, 2009, under Astronomy, Comets
Here is an image of comet lulin from around 6 am this morning.
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.
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.
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.
