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                             M 108, NGC 3556                      

 

 

 

Click here or on the image for a 1600 x 1200 pixels view, ~0.9 MB.

 

Image Information

Object

M108, NGC 3556

Coordinates RA:  11 11 23.7  Dec:  +55 41 28 Camera PA: 6.9E
Imaging by Greg Morgan
Date(s) Data: Jan 16 - 28, 2011

Optics

RCOS 16 inch ION Milled f/9 Ritchey-Chrétien (on loan from Mike Mayda, thanks Mike)

Mount

Paramount ME

Camera

Apogee Alta U16M, 9 micron 4096 x 4096 pixels

Guiding

Off-axis with the Astrodon Monster MOAG and SBIG ST-402XM

Field Scale

0.5 arcseconds / pixel

FOV

Cropped to 26' x 20' N is in the lower left, East is in the Lower right

Chip Temp

-25 C

Filter(s)

Astrodon Gen 2 Lum, Red, Green, and Blue

Location

Sierra Remote Observatories, Shaver Lake California 4,610 feet

Exposure(s)

L=18, R=7, G=7, B=8x1800 seconds (20 Hours Total)

Binning

1x1 for all filters

Software

CCDAutopilot, MaxIm DL, TheSky 6, CCDStack 2 with CCDIS-p registration, 64-bit CS4 plug-in for Neat Image Pro and GradientXTerminator.

 
web page hit counters

www.sierra-remote.com
www.sierraremoteobservatories.com