|
Notes from CCD Session Albireo - Double Star Star Chains near Alshain NGC 70 - Galaxy Group NGC 7814 - Spiral Galaxy NGC 7479 - Spiral Galaxy
- 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 ]
Back to Top
Albireo - Double Star (Cygnus) Albireo (β1 Cyg): Orange (mag +3.0), Companion (β2 Cyg): Blue (mag + 5.1) Separation 34 arc secs |
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 |
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 ] |
Back to Top
Star Chains near Alshain (Aquila) (Image Centre is 13 arc min NE of Alshain) |
CCD Image, 3x60s exposure (median combine) C Filter 2004-09-07 21:59h UT (#71057-59) |
Back to Top
Back to Top
Back to Top
NGC 7479 Barred Spiral Galaxy (Pegasus) |
CCD Image, 3x60s exposure (median combine) C Filter 2004-09-07 21:59h UT (#71057-59) |
Back to Top
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 |