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CCD Images - Session 421 (2010-08-07)

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Objects Session Notes
Bullet C/2007 Q3 (Siding Spring) - Comet
Bullet NGC 7023 - Reflection Nebula (Caldwell 4)
Bullet NGC 7331 - Spiral Galaxy (Caldwell 30)
Bullet Variable Stars
Bullet Photometric Monitoring - Variables
- U And, W And, Z And, FO Aql, R CrB, AM CVn, RS CVn, 
 - AM Her, U Her, CY Lyr, TZ Lyr, DY Per, GK Per

Bullet Astrometric Monitoring - Nearby Stars
- Barnard's Star
 
- Night session (2.7 hrs), cloud cover developing in last hour.
- Session operated under semi-automated control, with remote monitoring from indoors computer. 
- Ambient Temperature:  8.0 deg C  (minimum), climbing to 10 deg as cloud cover developed
- CCD operation -20 degC (at 72% average cooling).  
- main objectives of the session was to acquire images of selected project stars for ongoing photometric analysis
-

C/2007 Q3 (Siding_Spring) - Comet

Comet  C/2007 Q3 (Siding_Spring)  
shown by white cross-hairs

passing through starfield in Bootes.  
A number of faint galaxies are visible in the background
Bright star is Mag +8.30 star SAO 45323 /  HIP 73392

Image
Annotated CCD Image
3  x 60s exposure (average combine), 3x3 binning, C Filter 
2010-08-07 22:11 hUT (#421039-41)
12" LX200R  (at f/9.7) + ST-10XME

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NGC 7023 - Reflection Nebula (Caldwell 4)

NGC 7023 / Caldwel 4  (Cepheus)

Image
CCD Image (linear scale, 50% size)
13 x 20s exposure (average combine), 3x3 binning, C Filter
2010-08-07 22:26 hUT (#421045-58)
12" LX200R  (at f/9.7) + ST-10XME

 

NGC 7023 / Caldwel 4  - detail

Image
CCD Image (log scale, 50% size)
Image details as above

 

Image
False colour CCD Image (log, 50% size)
Inverse Spectrum
Image details as above

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NGC 7331 - Spiral Galaxy (Caldwell 30)

NGC 7331 / Caldwel 30  (Pegasus)

Image
CCD Image (linear scale, 50% size)
60s exposure (single frame), 3x3 binning, C Filter
2010-08-07 22:26 hUT (#421125)
12" LX200R  (at f/9.7) + ST-10XME

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Variable Stars

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This Web Page: CCD Images - Session 421  (2010-08-07)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site