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CCD Images - Session 158 (2006-12-05)

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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 Mira - variable star
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)
- 4.5 hr session, largely operated under automated control
- CCD operation of -20 degC (at 63% 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)
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- More Notes
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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 
2006-12-05 18:57h UT (#158012-16)

  

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 (2006-12-05.841) was taken 10.4 days after discovery.
Location of object, shown by white marker, is consistent with nova recorded by K.Itagaki
Estimated magnitude (+16.3) is slightly brighter than in earlier image (+17.1)

Image
CCD Image 
4 x 3 min exposure (average combine), 2x2 binning, C Filter
2006-12-05 20:11h UT (#158076-79)
  
Earlier Image of Nova M31 2006 14  (taken on 2006-11-26.84)
 Estimated magnitude (+17.1) 

Image
CCD Image 
5 x 3 min exposure (median combine), 2x2 binning, C Filter
2006-11-26 20:11h UT (#155108-12)

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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 (2006-12-05.890) was taken 5.08 days after discovery.
No sign of any object is evident at discovery location (white circle). Limiting magnitude of image +17.5

Image
CCD Image 
5 x 3 min exposure (medium combine), 2x2 binning, C Filter
2006-12-05 21:16h UT (#158140-44)
  

Globular Clusters in M31 (Andromeda)
12 globular clusters visible in image marked by white markers

Image

Annotated CCD Image 
(images details as above)

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Mira - variable star

Mira (Cetus)
(prototype Mira variable)

Image 
CCD Image 
30s exposure,  2x2 binning, C filter 
2006-12-05 21:54h UT (#158168)
 
 Images of Mira though BVRI filters
Image
CCD Image Montage (BVRI filter bands)
2x2 binning, cropped 
2006-12-05 21:57h UT (#158169-72)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 158 (2006-12-05)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site