Prev entry:
NGC 891 on December 1, 2004
Next entry:
M1 on December 13, 2004
M42 on December 13, 2004
M42
on December 13, 2004. Prime focus (f/8.0) and Astronomik
H
a
filter
(FWHM ~130 Å). Integration times: 150×2.13 sec (5.33 min) for the core (note the Trapezium) and 37×8.53 sec (5.26 min) for the wings.
2004 Dec 13 09:54 | (0)
comments
Post a comment
![](javascript:ImageWindow("http://www.alpheratz.net/images/observing/M42_2004-12-13.jpg",618,580,"external"))
Post a comment