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CCD Images - Session 46 (2003-07-19)

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Bullet Notes from CCD Session
 
Bullet M57 (Ring Nebula)
Bullet Defocussed Star (Altair)
Bullet Collimation

Notes (S00046)

This imaging session was ancillary to main task of performing a polar realignment of the LX200 telescope. Only 20 CCD Images were taken over a period of 2 hours. 

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M57 (Ring Nebula)

M57  (Lyra)
Image
Animated sequence of 7 CCD images,  10 sec exposures
taken over 6 minutes, showing variability in sky transparency.
2003-07-19  23:05 to 23:11h UT (#46013-46019)
9.2 x 7.6 arc mins 

Better images of M57 were recorded during the previous observing session on 2003-07-13

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 Defocused Star (Altair)

Defocussed star (Altair)
Image
CCD image
2003-07-19   (#46009)

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Collimation

Simulated example of collimation problem, 
created when adjusting collimation during previous sessio
Image
CCD image (star field near Procyon)
2003-02-18   (#44001)

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This Web Page: CCD Images - Session 46 (2003-07-19)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site