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CCD Images - Session 228 (2007-10-29)

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Objects Session Notes
Bullet Comet 17P/Holmes
Bullet Astrometric & Photometric Monitoring
- RX And (variables)
- U And  (Mira Variable)
-
(unsuccessful attempts at U Mon and TT Ari due to cloud)
- Morning session (1.2hr), cold. Cloud developing towards daybreak.
CCD operation of -20 degC (at 60% average cooling). 
- main objective of the session was to acquire an follow up images of recently erupted comet 17P/Holmes

Comet 17P/Holmes  

Comet 17P/Holmes 
(passing through starfield in Perseus)

Image
CCD Image 
5 x 10s exposure (average combine), 
2x2 binning, C Filter, Log Scale
2007-10-29 04:43h UT (#228038-42)
[ Full Size ]

  

Comet 17P/Holmes 

Image
Approximate Colour CCD Image 
Red: 3x 15s (R), Green: 3x 15s (V),  Blue: 6x 30s (B), 
2x2 Binning, Linear Scale
2007-10-29 04:46h UT (#228043-54)

 

Comet 17P/Holmes - detail

Image
False Colour CCD Image
Square root scale, False Colour (Inverse Spectrum)
30s exposure, 2x2 binning, C Filter
2007-10-29 04:34h UT (#228013)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 228  (2007-10-29)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site