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Thursday, March 26, 2009

Sh2-223 & 224

Two, exteremely dim, Supernova remnants in same five degrees field of view.
This target locates in Auriga.
Two hours H-alpha light for this target is way too litle.
There is some very very faint S-II component and maybe a hint of O-III.
A starless version to show the actual nebulosity.
Details; -Camera, QHY9 - Optics, Canon EF 200mm f1.8 @ 1.8 - Guiding, QHY5 and PHD-guiding - Platform, LX200 GPS 12" - Exposures, 7x1200s with 7nm H-alpha filter, 5x300s O-III Binned 4x4 and 5x300s
S-IIBinned 4x4 . Darks, Flats and Bias frames calibrated.

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