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CCD Images - Session 365 (2009-04-30)

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Objects Session Notes
Bullet NGC 3905 - Spiral Galaxy
Bullet M27 - Planetary Nebula
Bullet Astrometric & Photometric Monitoring
- SS Cyg (dwarf nova)
- HR Aur, KR Aur, RZ LMi  (variables)
 
- Late Evening/Night Session (5.7 hrs), 
- Operated under automated control / remote control.
- Ambient Temperature  7 deg C, decreasing to 6 deg C by end of session.   Relatively poor seeing
- CCD operation -25 degC (at 75% average cooling).  
- secondary objective of the session was  to acquire images of key selected stars for ongoing photometric and astrometric analysis. 
- attempted TPoint Mapping Run at end of session (but unable to complete before dawn).  
-
- Notes from 2009-04-30

NGC 3905 - Spiral Galaxy

NGC 3905 (Crater)

Image
CCD Image (cropped to central area)
4 x 90 sec exposure (average combine), 3x3 binning, C Filter 
2009-04-30 22:54 h UT  (#365051-54)
12" LX200R  (at f/5.7) + ST-10XME

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M27 - Planetary Nebula

M27 (Vulpecula)

Image
CCD Image (60% size scaling)
10 sec exposure (single frame), 2x2 binning, C Filter 
2009-05-01 01:50h UT  (#365102)
12" LX200R  (at f/5.7) + ST-10XME

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 365  (2009-04-30)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site