M42 in a bit different light

by Richard Crisp


this is a project I've been meaning to start for some time. It is a widefield using Near IR longpass, [SII] and Halpha

the bright stars in the Trapezium really severely limited my exposure time in Near IR, otherwise the sensor would bloom terribly. I ended up taking 15 second exposures. I had to take 100 of those subexposures to get 25 minutes total exposure.

the Halpha and [SII] data were 25 exposures of 60 seconds each.

each exposure with this camera, IMG6303, is 12.3MB. So I had a lot of raw data to crunch.

Even so, the data is a bit grainy so I may shoot more data another night soon. Who'd have thought that 150 exposures would be too few?

http://www.narrowbandimaging.com/m42_ap180_6303_NirS2Ha_page.htm


Posted on sf-bay-tac Feb 01, 2005 00:40:40 PT
Converted by report.pm 1.2 Feb 01, 2005 19:42:12 PT