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CCD Images - Session 319 (2008-11-02)

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Objects Session Notes
Bullet SS Cyg - Variable Star (UGSS) - Time Series
Bullet UGC 1840 / PGC 9060 & PGC 9062 - Galaxies (ARP 145)
Bullet NGC 523 - Disturbed Galaxy (ARP 158)
Bullet UGC 1810 & UGC 1813 - Galaxies with connected arms (ARP 273)
Bullet NGC 1134 - Galaxy with material ejected from nucleus (ARP 200)
Bullet UGC 2140 - galaxy group with irregular clumps (ARP 258 / Hickson 18)
Bullet NGC 935 & IC 1801 - Interacting Double Galaxy (ARP 276)
Bullet IC 195/196 - Double Galaxy with wind effect (ARP 290)
Bullet U Gem - Variable Star - Time Series
Bullet Astrometric & Photometric Monitoring
- SS Cyg, U Gem  (dwarf nova)
- U And, W And, SS Her (mira variables)
- BL Lac (blazar)
- FO And, RX And, Z And, CY Aqr, TT Ari, Eps Aur, Zet Aur, CI Cyg, RZ LMi, U Mon, HX Peg, Peg RU, Per GK, FG Sge, U Sge, V Sge, WZ Sge, RR Tau, ER UMa (variables)

- Barnards Star, 61 Cyg, HH And (Ross 248), Groombridge 34, Teegardens Star ( Nearby Stars)


- All night session  (13.0 hrs), operated under automated telescope & camera control
- Ambient Temperature 2.0 degC falling through the night to reach -2.0 degC (minimum) by dawn
- CCD operation of -20 degC 
(at 52% average cooling).    
- main objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 

Three time series where collected (SS Cyg, U Gem, HD189733)

-

opportunity taken to acquire images of selected deep sky objects


SS Cyg - Variable Star (UGSS) - Time Series

Cyg SS - Photometric Time Series, 125min duration
180 x 30s frames, 2x2 binning, V filter,  
2008-11-02 23:20  to 2008-11-03 01:26h UT  (#319417-596)

SS Cyg showing magnitude variation of 0.05 mag over 15-20 minute intervals

 Image

Image 

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UGC 1840 / PGC 9060 & PGC 9062 - Galaxies (ARP 145) 

UGC 1840,  ARP 145 (Andromeda)

Image

CCD Image 
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-03 02:28 h UT (#319638-42)

UGC 1840 - detail

Image

Annotated CCD Image (200% size)
Image details as above

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NGC 523 - Disturbed Galaxy (ARP 158) 

NGC 523,  ARP 158 (Andromeda)
Elongated E-W, with 3 knots of nucleus visible

Image

CCD Image 
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-03 02:46 h UT (#319646-50)

NGC 523 - detail

Image

Annotated CCD Image (250% size)
Image details as above
 

Image

Negative CCD Image (250% size)
Image details as above

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UGC 1810 & UGC 1813 - Galaxies with connected arms (ARP 273) 

UGC 1810 & UGC 1813, ARP 273 (Andromeda)

Image

CCD Image 
4 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-03 03:11 h UT (#319659-62)

NGC 523 - detail

Image

Annotated CCD Image (250% size)
Image details as above
 

Image

Negative CCD Image (250% size)
Image details as above

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NGC 1134 - Galaxy with material ejected from nucleus (ARP 200) 

NGC 1134,  ARP 200 (Aries)

Image

CCD Image 
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-03 03:30 h UT (#319666-70)

NGC 1134 - detail

Image

Annotated CCD Image (200% size)
Square root scaling
Image details as above

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UGC 2140 - galaxy group with irregular clumps (ARP 258 / Hickson 18)  

UGC 2140 group  ARP 258 (Aries)

Image

CCD Image 
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-03 03:54 h UT (#319684-8)

UGC 2140 - detail

Image

Annotated CCD Image (200% size)
Image details as above
 

Image

Negative CCD Image (200% size)
Image details as above

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NGC 935 & IC 1801 - Interacting Double Galaxy (ARP 276) 

NGC 935 & IC 1801,  ARP 276 (Aries)

Image

CCD Image 
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-03 04:11 h UT (#319691-95)

NGC 935 & IC 1801 - detail

Image

Annotated CCD Image (200% size)
Image details as above
 

Image

Negative CCD Image (200% size)
Image details as above

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IC 195/196 - Double Galaxy with wind effect (ARP 290)

IC 195/196,  ARP 290 (Aries) 
Stars slightly trailed

Image

Annotated CCD Image 
5 x 180s sec exposure (average combine), 2x2 binning, C Filter
2008-11-02 04:39 h UT (#319713-17)

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U Gem - Variable Star - Time Series

U Gem - Photometric Time Series, 68min duration
32 x 120s frames, 2x2 binning, V filter,  
2008-11-03 05:14  to 2008-11-03 06:23h UT  (#319734-65)

U Gem showing magnitude brightening of 0.4 mag over the course of 50 minutes.
Sky conditions deteriorating towards end of session (dawn ?)

 Image

Image 

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 319  (2008-11-02)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site