Light Pollution
Home Site Considerations Location Maps Meteorology Views From Site Frequently Asked Questions Contacts & Links
 
 

                              M 57 The Ring Nebula                               

 

 

Click here or on the image for a half resolution view 1747 x 1310 pixels, ~ 1.5 MB.

 

Image Information

Object

M57, The Ring Nebula in Lyra
Coordinates RA: 18 53 45 Dec: +33 03 53  PA: 360
Imaging by Greg Morgan
Date(s) June 29-30, 2008

Optics

RCOS 12.5 inch f/9 Ritchey-Chrétien with a 2,857mm focal length

Mount

Paramount ME

Camera

Apogee Alta U16M, 9 micron 4098 x 4098 pixels

Guiding

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

Field Scale

0.64 arcseconds / pixel

FOV

N is up, E is to the left.

Chip Temp

-15 C

Filter(s)

Astrodon LRGB

Location

Sierra Remote Observatories, Shaver Lake California 4,610 feet

Exposure(s)

L 20 x 900 , R 12 x 900, G 8 x 900, B 12 x 900 seconds (13 Hours Total)

Binning

1x1

Camera control

MaxIm DL 4 / CCDAutopilot 3

Processing software

CCDStack, Photoshop CS2

Image notes

 LRGB only, no Ha data.  Below is the full frame image 0.75 degrees square.

 

 
free web page hit counter
Provided by website-hit-counters.com hit counter page.
www.sierra-remote.com
www.sierraremoteobservatories.com