NGC 7538

IC 1795, NGC 896

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Image Information

Object	IC 1795, NGC 896
Coordinates	RA 02 26 48 DEC 62 06 44
Imaging by	Greg Morgan
Date(s)	December 2007 to January 2008
Optics	RCOS 12.5 inch f/9 Ritchey-Chrétien with a 2,857mm focal length
Mount	Paramount ME
Camera	Apogee U16M
Guiding	Off-axis with the Astrodon Monster MOAG and SBIG ST-402XM
Field Scale	0.64 arcseconds / pixel
FOV	44' x 44'
Chip Temp	-25 C
Filter(s)	Astrodon 5nm Ha, OIII, SII 50mm square 90+% Transmittance
Location	Sierra Remote Observatories, Shaver Lake California 4,610 feet
Exposure(s)	Ha 14 x 1800 , OIII 30 x 1800, SII 16 x 1800 seconds (30 Hours Total)
Binning	1x1
Camera control	MaxIm DL 4 / CCDAutopilot 3
Processing software	CCDStack, Photoshop CS2
Image notes	This is my first narrow band image. This was first light with the new instrument package. The optical train is as follows; Field Flattener>PIR>MMOAG/402>Apogee 7 position filter wheel with Astrodon 50mm square filters>Apogee U16M CCD camera.

5nm Ha stack of 14 x 1800 second subframes

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