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CCD Images - Session 275 (2008-03-09)

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Objects Session Notes
Comet C/2007 B2 (Skiff)
PGC 29488 / Leo I - local group galaxy
M67 - open cluster
M87 - Elliptical Galaxy / Jet
NGC 4567/4568 - spiral galaxies (Siamese Pair)
NGC 5394/5395, ARP 84  ("Heron")
Astrometric & Photometric Monitoring
- U Gem (dwarf nova)
- KR Aur, AQ CMi, CV CMi, SY Cnc, U Mon (variables)

- Wolf 359 attempt (but images couldn't link)





- Late Evening session (3.3hr).  
Temperature +0.8 degC, later rising to +2.5 degC
- CCD operation of -25 degC 
(at 69% average cooling). 
- main objective was to acquire images of certain selected stars for ongoing photometric analysis, in particular U Gem & RX And. 
- opportunity was also taken to acquire a number of gallery images of specific ARP galaxies .

Comet C/2007 B2 (Skiff)

Comet C/2007 B2 (Skiff)  
(passing through starfield in Virgo)
Note : several background galaxies including NGC 4577/4591))

 
CCD Image 
3  x 120s exposure (av. combine), 2x2 binning, C Filter
2008-03-09 22:47h UT (#
275028-30)

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PGC 29488 / Leo I - local group galaxy

PGC 29488 / Leo I - local group (Leo)  
local galaxy with very low surface area

 
CCD Image 
5  x 180s exposure (av. combine), 2x2 binning, C Filter
2008-03-09 23:15h UT (#
275045-49)

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M67 - open cluster

M67 (Cancer)  

 
CCD Image Mosaic (60% size scaling)
30s exposure, 2x2 binning, C Filter
2008-03-09 23:49h UT (#275064-75)
[Full Size Image]

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M87 - Elliptical Galaxy / Jet

M87 (Virgo)
 
Annotated CCD  Image
3 x 180 sec exposure (summed), 2x2 binnimg, C Filter
2008-03-10  00:16 h UT (#275087-99)
M87 - detail
CCD  Image
Square root scaling
(Image details as above)
 
False Colour CCD  Image
Square root scaling, Inverse Spectrum
(Image details as above)
M87 Jet - detail
CCD  Image (250% size scaling)
Square root scaling
(Image details as above)
Negative CCD  Image (250% size scaling)
Square root scaling
(Image details as above)
M87 Jet - detail
CCD  Image
Linear scaling
(Image details as above
(Insert at x2.5 size scaling)
M87 Jet - enlarged image
CCD  Image (500% size scaling)
Linear scaling
(Image details as above

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NGC 4567/4568 - spiral galaxies (Siamese Pair)

NGC 4567/4568 (Virgo)  

Annotated CCD Image 
5 x 180s exposure, 2x2 binning, C Filter
2008-03-10 00:31h UT (#275093-97)
 
 NGC 4567/4568 - detail
 
False Colour CCD  Image
Square root scaling, Inverse Spectrum
(Image details as above)
  
 
Negative CCD  Image
Square root scaling
(Image details as above)
  
 
Negative CCD  Image  (200% size scale)
Square root scaling
(Image details as above)
 
 

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NGC 5394/5395, ARP 84 - Spiral galaxy with HSB companion on arm ("Heron")

NGC 5394 and NGC 5395 / ARP 84  (Canes Venatici)  

Annotated CCD Image 
3 x 180s exposure, 2x2 binning, C Filter
2008-03-10 01:13h UT (#275118-22)
 
 NGC 5394, NGC 5395 / ARP 84 - detail
 
False Colour CCD  Image
Square root scaling, Inverse Spectrum
(Image details as above)
  
 
Negative CCD  Image
Square root scaling
(Image details as above)
  
 
Negative CCD  Image (200% size scale)
Square root scaling
(Image details as above)

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Astrometric and Photometric Monitoring

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This Web Page: CCD Images - Session 275  (2008-03-09)
Last Updated : 2008-03-13
Site Owner : David Richards
Home Page : David's Astronomy Web Site