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CCD Images - Session 190 (2007-04-19)

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Images (S191)
 
Objects Session Notes
Bullet New Moon (Previous Day)
Bullet Moon & Venus
Bullet Regulus - Star
Bullet M3 - Globular Cluster
Bullet Astrometric & Photometric Monitoring
- U Her (Mira variables)
- RZ LMi, SY Cnc (variables)
- NGC 4151, NGC 2782 (Seyfert galaxies)

- 3C 273 (Quasar)
- 2.4 hr session, cut short by deteiorating sky conditions & cloud
- CCD operation of -25 degC (at 60% average cooling). .
- main objective was to acquire images for ongoing photometric and astrometric monitoring of  selected stars
- secondary objective was to acquire some test images using DSLR camera mounted on top of telescope.
- More Notes
-

New Moon (Previous Day)

New Moon, 2007-04-18  (Phase 3.0%)

Image 

Digital Photo (EOS 400D)
1/13s, f/5.6, ISO 800, 300mm (33% size, cropped)
2007-04-18 20:08 hUT
[ Larger Image ]

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Moon & Venus

Moon & Venus

Image 

Digital Photo (EOS 400D) 
0.5s, f/5.6, ISO 800, 70mm (15% size, cropped)
2007-04-19 20:18 hUT
[ Larger Image ]

  

Moon (Phase 8.4%)

Image 

Digital Photo (EOS 400D), cropped
Image details as above
2007-04-19 20:18 hUT

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Regulus - Star

Starfield around Regulus (Leo)

Image 

Digital Photo (15% size)
EOS 400D, 30s, f/4.0, ISO 800, 70mm (15% size
2007-04-18 22:11h UT
 
Background corrected for light pollution
Image
Digital Photo (15% size)
Image details as above
 
Image detail around Regulus
(Magnitude Limit ~ +9.0)
Image

Digital Photo (33% size)
Image details as above
[Image annotated with Star Magnitudes]

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M3 - Globular Cluster 

Starfield around M3 (Canes Venatici)

Image 

Digital Photo (15% size)
EOS 400D, 30s, f/5.0, ISO 800, 70mm 
2007-04-18 22:33h UT
  
M3 - Globular Cluster
Image
Digital Photo (100% size, cropped)
EOS 400D, 30s, f/5.6, ISO 800, 300mm 
2007-04-18 22:11h UT
 
Previous CCD Image of M3 
(scaled and cropped to same field of view as Digital Photo)
Image
CCD Image Mosaic (45% size, cropped)
30 sec exposure  (4 x 4)
2002-04-16  21:29h hUT (#21020-36)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 190 (2007-04-19)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site