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CCD Images - Session 159 (2006-12-06)

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Objects Session Notes
Bullet C/2006 M4 (Swan) - Comet
Bullet M31 - Extragalactic Nova: M31 2006 14
Bullet M31 - Extragalactic Nova: M31 2006 15
Bullet M74 - Spiral Galaxy
Bullet Astrometric & Photometric Monitoring
- HD 5501/5513 (eclipsing variables)
- SS Cyg (dwarf novae)
- Z And, RU Peg (variable)
- BL Lac (BL Lac blazer)
- U And, W And, U Her (Mira variables)
- 61 Cyg, Barnards Star (nearby star)
- TrES-2 (exosolar planet sol)
- 4.8 hr session, largely operated under automated control
- CCD operation of -20 degC (at 55% average cooling). .
- session terminated early due to developing cloud
- main objectives were to acquire BVRI images of Mira stars (U Her, U And, W And) as part of ongoing photometric studies, together with follow-up images on C/2006 M4,  BL Lac and M31 Nova (2006 14)
- opportunity taken to acquire images of Mira (Cetus)
-
- More Notes
-

C/2006 M4 (Swan) - Comet

Comet C/2006 M4 (Swan)
(passing through starfield in Aquila)

 Image

CCD Image 
5 x 60s exposure (average combine, aligned on comet), 
2x2 binning, C filter,  Linear scale 
2006-12-06 17:42h UT (#159035-39)

 

Image

False Colour CCD Image 
Log brightness scaling (3000 ADU range)
(details as above)

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M31 - Extragalactic Nova : M31 2006 14

M31 part (Andromeda)
An extragalactic nova (M31 2006 14) was discovered in M31 on 2006/11/25.468
by Koichi Itagak, with an apparent magnitude of +17.5 
(Extragalactic Novae page at Rochester Supernova site | Discovery Image | Reference: 2006-11a)

Image below (2006-12-06.776) was taken 11.31 days after discovery.
Location of object, shown by white marker, is consistent with nova recorded by K.Itagaki
Estimated magnitude (+16.4)

Image

CCD Image 
7 x 3 min exposure (median combine), 2x2 binning, C Filter
2006-12-06 18:37h UT (#159092-98)

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M31 - Extragalactic Nova : M31 2006 15

M31 part (Andromeda)
An extragalactic nova (M31 2006 15) was discovered in M31 on 2006/11/30.808 
by K. Hornoch, M. Wolf and P. Zasche, with an apparent magnitude of +17.3 
(Extragalactic Novae page at Rochester Supernova site | Discovery Image | Reference:  tba)

Image below was taken 6 days after discovery.
No sign of any object is evident at discovery location.
 Limiting magnitude of image +17.5

Image

CCD Image 
5 x 3 min exposure (medium combine), 2x2 binning, C Filter
2006-12-06 18:57h UT (#159101-05)
  

Enhanced Image

Image

Image enhanced CCD Image 
(images details as above)

 

Even in enhanced image no sign of any object is evident at discovery location.
(between white makers)

Image

Image enhanced CCD Image 
(images details as above)

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M74 - Spiral Galaxy

M74 (Pisces)

Image

CCD Image 
3 x 3 min exposure (average combine), 2x2 binning, C Filter
2006-12-06 20:07h UT (#159165-67)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 159 (2006-12-06)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site