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CCD Images - Session 352 (2009-03-01)

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Images (S353)
 
Objects Session Notes
Bullet C/2007 N3 (Lulin) - Comet
Bullet 116P/Wild - Comet
Bullet 144P/Kushida - Comet
Bullet 85P/Boethin - Comet 
Bullet Astrometric & Photometric Monitoring
- U Gem  (dwarf nova)
- RX And, TT Ari, HR Aur, KR Aur, RZ LMi,
U Mon, CN Ori, CZ Ori, FO Ori, FU Ori, NC Ori, DY Per, RR Tau (variables)
 
SY Cnc attempt  (aborted due to cloud ?)
- Mid evening session (3.0 hrs), largely operated under automated control
- Ambient Temperature  4 deg C, gradually falling to 0 deg rby end of session
- CCD operation -20 degC (at 57% average cooling).  
- main objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 
- opportunity taken to acquire images of comet Lulin and a few other fainter comets

C/2007 N3 (Lulin) - Comet

C/2007 N3 (Lulin) passing through starfield in Leo
Although frames covering the head are effected by motion of comet 
between frames, the tail of the comet is nicely visible, 

Image

CCD Image Mosaic (40% size scaling)
90s sec exposures,2x2 binning, C Filter
2009-03-01 23:04 h UT (#352200-19)
8" LX200 Classic (at f/6.6) + ST-7e 

  

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
2009-03-01 20:46 h UT (#352111-13)
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
2009-03-01 20:45 h UT (#352111)
8" LX200 Classic (at f/6.6) + ST-7e 

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116P/Wild - Comet

116P/Wild 
(passing through starfield in Leo)

Image

Annotated CCD Image 
3 x 120s sec exposure (average combine), 2x2 binning, C Filter
2009-03-01 20:52 h UT (#352116-18)
8" LX200 Classic (at f/6.6) + ST-7e 

 

Earlier Image of 116P/Wild  (2009-01-02)

Image

Annotated CCD Image 
3 x 120s sec exposure (average combine), 2x2 binning, C Filter
2009-01-02 23:05 h UT (#337141-43)
8" LX200 Classic (at f/7.6) + ST-7e 

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144P/Kushida - Comet

144P/Kushida 
(passing through starfield in Taurus)

Image

Annotated CCD Image 
3 x 120s sec exposure (average combine), 2x2 binning, C Filter
2009-03-01  21:00 h UT (#352121-23)
8" LX200 Classic (at f/6.6) + ST-7e 

   

Previous image of 144P/Kushida - 2008-01-02
(passing through starfield in Taurus)

Image

Annotated CCD Image 
3 x 120s sec exposure (average combine), 2x2 binning, C Filter
2009-01-02 20:59 h UT (#337045-47)

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85P/Boethin - Comet ("Nasa's missing comet")

Further attempted observation of 85P/Boethin  

Expected position of 85P/Boethin 
(marked by white circle)

Image

Annotated CCD Image 
3 x 120s sec exposure (average combine), 2x2 binning, C Filter
2009-03-01 21:09 h UT (352127-29)
8" LX200 Classic (at f/6.6) + ST-7e 

See previous attempt on 2008-11-27
(with description about this 'missing comet')

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 353  (2009-03-02)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site