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                             M104                              

 

 

Click here or on the image for a 1600 x 1200 pixel view (FOV = 14' x 10'), ~1 MB.

 

 

 

 

Click here or on the image for a 4089 x 3067 pixel view (FOV = 35' x 26'), ~7 MB.

 

 

Image Information

Object

M104

Coordinates RA:  12 39 59.3  Dec:  -11 37 21 Camera PA: 344.5E
Imaging by Greg Morgan
Date(s) Data: May 1 to 7, 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 14' x 10' and 35' x 26'

Chip Temp

-15 C

Filter(s)

Astrodon Gen 2 Lum, Red, Green, and Blue

Location

Sierra Remote Observatories, Shaver Lake California 4,610 feet

Exposure(s)

L=20, R=8, G=8, B=8x1800 seconds (22 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.

Image notes

 

The core was blown out with 30 minute Lum subframes.  I captured 12 x 150 sec Lum subs that were used to process the Lum core.

 

 

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www.sierraremoteobservatories.com