Supernova Remnant Sh2-240 - Simeis 147 - AR 05h 39m 06s DEC +28° 00' 00"
Date/Place2009-10-23 at Saint Barthèlemy (AO)
ScopeTakahashi FSQ85ED
CameraModified 450D
IntegrationStack of 9x900 sec. at ISO800 and IDAS filter. Processing with IRIS, PICTools, Pixinsight LE.
CommentOne of the toughest object I have ever imaged, and the short integration time used make me think that I'll have to image this nebula again.