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CCD Images - Session 71 (2004-09-07)

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Images (S72)
 
Bullet Notes from CCD Session
 
Bullet Albireo - Double Star   
Bullet Star Chains near Alshain
Bullet NGC 70 - Galaxy Group
Bullet NGC 7814 - Spiral Galaxy
Bullet NGC 7479 - Spiral Galaxy

Notes (S00071)

- Imaging session was with a focal reducer bringing 8" f/10 LX200 to f/7. 
- Images were recorded with ST7 CCD camera. Filter Wheel with CBVRI filters
- Cloud rapidly build up and cut short the 1.6 hour session.
[ More notes ]

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Albireo - Double Star

Albireo - Double Star (Cygnus)
Albireo (β1 Cyg): Orange (mag +3.0), 
Companion (β2 Cyg): Blue (mag + 5.1)
Separation 34 arc secs
Image 
CCD Colour Composite
Blue (B 1.0s), Green (V 0.3s), Red (R 0.3s)
2004-09-07 21:30 hUT (# 71026,34,36)
 
Star field around Albireo (Cygnus)
Enhanced Image Display
Magnitude Limit  = +12.5
Image
CCD Image, 10s exposure, C Filter
Logarithmic Scaling, Range 105 - 40000 ADU
2004-09-07 21:31h UT (# 71039)
[ What is the Magnitude Limit of an Image - discussion 
on this Image of a Starfield around Albireo
  ]

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'Star Chains' near Alshain

Star Chains near Alshain (Aquila)
(Image Centre is 13 arc min NE of Alshain)
Image
CCD Image, 3x60s exposure (median combine)
C Filter
2004-09-07 21:59h UT (#71057-59)

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NGC 70 - Galaxy Group

NGC 70 Galaxy Group (Andromeda)
NGC 67 (catalog mag +14.8), NGC 68 (catalog mag +14.4), NGC 69 (catalog mag +15.8), 
NGC 70 (catalog mag +14.2), NGC 71 (catalog mag +13.3), NGC 72 (catalog mag +13.8),
NGC 74 (catalog mag +15.6), PGC 1891312 (catalog mag +17.7), 
PGC 1889183 (catalog mag +17.4), PGC 1889390
(catalog mag +16.8),
PGC 1887599
(catalog mag +16.9), PGC 138159 (catalog mag +16.5)
Image 
CCD  Image, 9 x 60s (summed) , C Filter
2004-09-07  21:35 to 21:45h UT (#71041-49)
 
NGC 70  Galaxy Group
Image 
Negative CCD Image (details as above)
 
NGC 70  Galaxy Group
(Note : Spiral nature of NGC 72 Galaxy is visible in this display)
Image 
False Colour CCD Image (Square root brightness scaling)
(Image details as above)

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NGC 7814 - Spiral Galaxy

NGC 7814 (Andromeda) 
Edge on Spiral Galaxy, Dust Lane Prominant
Image 
CCD Image, 5x60s exposure (average combine)
C Filter
2004-09-07  21:52 h UT (#71051-55)
 
NGC 7814 (Andromeda) 
also visible are galaxies 
PGC 259 (catalog mag 15.3), PGC 1500064 (catalog mag 17.6)
plus several other suspected faint 'uncatalogued' galaxies
Image
CCD Image as above (annotated)
 
NGC 7814 (Andromeda) 
Image
CCD Image as above (smaller black-white range)

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NGC 7479 - Spiral Galaxy

NGC 7479 Barred Spiral Galaxy (Pegasus)
Image
CCD Image, 3x60s exposure (median combine)
C Filter
2004-09-07 21:59h UT (#71057-59)

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This Web Page: CCD Images - Session 71 (2004-09-07)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site