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CCD Images - Session 350 (2009-02-25)

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Objects Session Notes
Bullet C/2007 N3 (Lulin) - Comet
Bullet Astrometric & Photometric Monitoring
 
W And, CN Ori, CZ Ori, FO Or, FU Ori attempts (failed as filter wheel was not defined/did not operate, all images were with C Filter)
- Evening session (4.7 hrs), operated largely under automated control
- Ambient Temperature  5 deg C
- CCD operation -25 degC (at 84% average cooling).  
- main objective was to acquire images of comet Lulin which is making closest approach to Earth on Feb 24/25th. 
- secondary objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 
-

C/2007 N3 (Lulin) - Comet

C/2007 N3 (Lulin) passing through starfield in Leo

Image

CCD Image (Linear Scale)
3 x 30s sec exposure (average combine, aligned on comet), 
2x2 binning, C Filter
2009-02-25 21:53 h UT (#350081-83)
8" LX200 Classic (at f/6.6) + ST-7E 

  

C/2007 N3 (Lulin) - detail

Image

False Colour CCD Image (Log Scale)
Inverse Specturn
30s sec exposure,  2x2 binning, C Filter
2009-02-25 21:52 h UT (#350081)
8" LX200 Classic (at f/6.6) + ST-7E 

 

C/2007 N3 (Lulin) - 
animation showing movement over 48 minute period

Image

Animated CCD Image
30s sec exposure,  2x2 binning, C Filter
2009-02-25 22:00 to 22:48 h UT to (#350084-164)
8" LX200 Classic (at f/6.6) + ST-7E 
 

C/2007 N3 (Lulin) 

Image

Approximate Colour CCD Image
Red: 3x20s (R), Green: 3x20s (V), Blue: 3x30s (B)
2009-02-25 23:12 h UT to (#350181-89)
8" LX200 Classic (at f/6.6) + ST-7E 

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 350  (2009-02-25)
Last Updated : 2015-05-16
Site Owner : David Richards
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