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CCD Images - Session 340 (2009-01-07)

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Objects Session Notes
Bullet M61 - Spiral Galaxy
Bullet Astrometric & Photometric Monitoring
- SS Cyg, U Gem  (dwarf nova)
- U And, W And (mira)
- BL Lac (blazar)
- FO And, Z And, TT Ari, KR Aur, SY Cnc, AM CVn, RZ LMi,
U Mon, CN Ori, CZ Ori, FO Ori, FU Ori, NV Ori, DY Per, GK Per, RR Tau, ER UMa (variables)
- Late Evening session (4.9 hrs), operated under automated control
- Ambient Temperature  0 deg C, 
- CCD operation -30 degC (at 82% average cooling).  
- main objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 
- attempt made to image M61, but spoilt by poor sky transparency

M61 - Spiral Galaxy 

M61 (Virgo)

Image

CCD Image - Linear scaling
4 x 120s sec exposure (average combine), 2x2 binning, C Filter
2009-01-08 01:49 h UT (#340197-200)

  

M61 - previous image (2008-11-30)

Image

CCD Image - Linear scaling
5 x 120s sec exposure (average combine), 2x2 binning, C Filter
2008-11-30 05:30 h UT (#328664-68)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 340  (2009-01-07)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site