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CCD Images - Session 229 (2007-10-30)

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Objects Session Notes
Bullet Comet 17P/Holmes
Bullet Astrometric & Photometric Monitoring
 - RX And, TT Ari, Z And, U Mon (variables)
- W And  (Mira Variable)
- (unsuccessful attempts at U Gem due to dawn light)
- Morning session (2.5hr), cold, frosty
CCD operation of -25 degC (at 71% 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 Mosaic (5 x 6), 35% size
20s exposure, 2x2 binning, C Filter, Log Scale
2007-10-30 04:57h UT (#229040-69)
[ 70% Size ]

 

Comet 17P/Holmes - motion
Animation showing 10 arc min motion over 24 hour period
Image
Animated CCD Images
5 x 10s exposure (average combine), 2x2 binning, C Filter, 
Log Scale
Frame 1 : 2007-10-29 04:43h UT (#228038-42)
Frame 2 : 2007-10-30 04:47h UT (#229035-39)
 

Comet 17P/Holmes - detail
Image
CCD Image 
5 x 10s (average combine), 2x2 Binning, C Filter, Log Scale
2007-10-29 04:47h UT (#229035-39)

 
Image
CCD Image 
30s, 2x2 Binning, C Filter, Log Scale
2007-10-30 04:37h UT (#229011)

  
 Image
CCD Image , Linear Scale
(Image details as above)

 
Image
False Colour CCD Image
Square root scale, False Colour (Inverse Spectrum)
(Image details as above)
 

Comet 17P/Holmes - Isophoto Contouring
Image Linear
Scale
Image Square
Root
Scale
Image Log
Scale
 
Image
CCD Image (50% size), Linear Scale
20s exposure, 1x1 binning, C Filter, 
2007-10-30 04:44h UT (#229028)
Image
False Colour CCD  Image (50% size)
Square Root brightness scaling & Isophote Contoured, 
False Colour (Inverse Spectrum). 
Image details as above.
 

Comet 17P/Holmes - Rotational Gradient Processing
 Image
Original CCD Image 
5 x 10s (average combine), 2x2 Binning, C Filter, linear Scale
2007-10-30 04:47h UT (#229035-39)
Image
Processed CCD Image
Rotational Gradient Processing, 20 deg
Cropped
(Image details as above)
Image
Processed CCD Image
Rotational Gradient Processing, 15 deg
(Image details as above)
  

Comet 17P/Holmes - explosive eruption
Frames taking on Oct 25th, 29th 30th showing expanding coma 
that relates to the 2007-10-23 eruption event

 2007-10-25 (2.1 arc min diam) 
2007-10-29 (7.0 arc min diam)
2007-10-30 (9.3 arc min diam)
Image
Animated CCD Images
5 x 10s exposure (average combine), 2x2 binning, C Filter, 
Log Scale
Frame 1 : 2007-10-25 20:45h UT (#227055-59)
Frame 2 : 2007-10-29 04:43h UT (#228038-42)
Frame 3 : 2007-10-30 04:47h UT (#229035-39)

 

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 229  (2007-10-30)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site