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CCD Images - Session 155 (2006-11-26)

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Images (S156)
 
Objects Session Notes
C/2006 M4 (Swan) - Comet
TrES-2 - Parent Star to exosolar planet
M31 - Extragalactic Nova: M31 2006 14
Globular clusters in M31
BL Lac - Active Extragalactic Object (Blazer)
4P/Faye - Comet
Astrometric & Photometric Monitoring
- Barnard's Star (nearby star)
- SS Cyg (dwarf novae)
- HD 5501/5513 (eclipsing variables)
- Z And (variable)
- BL Lac (BL Lac blazer)
- U And, W And (Mira variables)
- 3.3 hr session, largely operated under automated control
- CCD operation of -25 degC (at 87% average cooling). Ambient temperature rising during session, due to advance of warm front /developing cloud. (CCD camera cooling 80% at start of session, increasing to 90-95% by end)
- main objectives where to a acquire sequence of images of HD 5501/HD 5513 and SS Cyg as part of ongoing photometric studies, and to acquire baseline images of GSC 3549:2811 (extrasolar planet sol to TrES-2)
- opportunity was also taken to acquire images of newly discovered nova in M31 (2006 14)
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- More Notes
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C/2006 M4 (Swan) - Comet

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

 

CCD Image 
5 x 60s exposure (average combine, aligned on comet), 
2x2 binning, C filter, Linear scale 
2006-11-26 18:54h UT (#155034-38)

 

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

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TrES-2 - Parent Star to Exosolar Planet

Baseline images of TrES-2 parent star (GSC 3549:2811) were acquired as part of a project to detect the transit of an exosolar planet, that is known to orbit this star  (exosolar planet project).

TrES-2 Parent Star / GSC 3549:2811 (Draco)
CCD Image 
3 x 60 sec exposure (average combine), 2x2 binning, C Filter
2006-11-26 19:30h UT (#155074-82)
 
Colour Images
Approximate Colour CCD Image 
BVR, 2x2 binning
Red 3x60s (R Filter), 
Green 3x60s (V Filter), Blue 3x120s (B Filter)
2006-11-26 19:30h UT (#155075-85)
Approximate Colour CCD Image 
CBVR, 2x2 binning
Luminance : 3 x 60s (C Filter), Red 3x60s (R Filter), 
Green 3x60s (V Filter), Blue 3x120s (B Filter)
2006-11-26 19:30h UT (#155075-85)
Reference Stars
CCD Image 
3 x 60 sec exposure (average combine), 
2x2 binning, C Filter
2006-11-26 19:30h UT (#155074-82)

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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 (2006-11-26.841) was taken 1.37 days after discovery.
Location of object, shown by white marker, is consistent with nova recorded by K.Itagaki
Estimated magnitude (+17.1).

CCD Image 
5 x 3 min exposure (median combine), 2x2 binning, C Filter
2006-11-26 20:11h UT (#155108-12)
  
Nova M31 2006 14 - Detail
position of recorded Nova maked by white markers

CCD Image (200% size & cropped)
Image details as above

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Globular Clusters in M31

Globular Clusters in M31 (Andromeda)
16 globular clusters visible in image marked by white markers
,together with nova M31 2006-14
165-218 (catalog mag +16.5), 182-233 (catalog mag +15.4),
180-231 (catalog mag +16.0), 158-213 (catalog mag +14.7),
177-228 (catalog mag + 18.0), 155-210 (catalog mag +17.9),
160-214 (catalog mag + 18.0), 156-211 (catalog mag +16.8),
108-167 (catalog mag + 17.5), 101-164 (catalog mag +16.9),
092-152 (catalog mag + 16.9), 125-183 (catalog mag +16.5),
110-172 (catalog mag + 15.2), 095-157 (catalog mag +15.8),
VB 234 (catalog mag  ??), 082-144 (catalog mag +15.5),

Annotated 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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BL Lac - Active Extragalactic Object (Blazer)

Baseline images (3 x 180s, R Filter) acquired for photometric monitoring.   

Reference image shown below. (reference stars:  C2 and C12, check stars : K20,K25).   Calculated magnitude of BL Lac +13.74 (R).

[Reference magnitude data for stars C2 and C12 from OPTICAL AND NEAR-INFRARED CALIBRATION OF AGN FIELD STARS by GONZÁLEZ-PÉREZ et al, The Astronomical Journal, volume 122 (2001),   large size reference picture ]

BL Lac (Lacerta)

CCD Image 
3 x 120 sec exposure (median combine), 2x2 binning, R Filter
2006-11-26 20:24h UT (#155116-18)
  
BL Lac monitoring

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4P/Faye - Comet

Comet 4P/Faye 
(passing through starfield in Cetus)

CCD Image
3 x 2 min exposure, 2x2 binning (average combine), C Filter
2006-11-26 20:33 h UT (#155122-24)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 155 (2006-11-26)
Last Updated : 2008-01-01
Site Owner : David Richards
Home Page : David's Astronomy Web Site