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home
BAA VSS database
shortcut to VSS software
Lymm Observatory
railway signalling
shortcuts
lightcurves
optimal photometry
signal box diagrams
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Welcome to my web pages! I hope you find something of interest here concerning one
of my hobbies.
IC434 (Horsehead Nebula), 21 Dec 2009, stack of 100 x 30s exposures,
30 cm SCT at f/6.3 and MX916 camera.
email me
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latest updates
21/12/2009: more SB diagrams
23/3/2009: ST LMi lightcurves
15/3/2009: lots more SB diagrams
4/1/2009: more SB diagrams
4/1/2009: lightcurves updated
28/11/2008:
Bradford Exchange and
Laisterdyke SBDs
28/11/2008: AI Tri lightcurves
17/11/2008: more SB diagrams
10/11/2008: optimal photometry
31/7/2008: Cock Lane and Endon diagrams
11/5/2008: more SB diagrams
4/5/2008: NLR SB diagrams (1907)
15/10/07: more SB diagrams:
West Silkstone Junction (1973)
Glazebrook East Junction (CLC, 1926)
16/7/2007: 2003EL61 lightcurve added
14/7/2007: Ashton Junction simulation added
23/3/06: CCD pages (lightcurves and software)
updated
23/3/06: railway pages updated - more SB
diagrams and Woodhead route items
4/1/2006: Dunford West diagram added
6/12/2005: new versions of VSS software
(including zipped file)
22/11/2005: more SB diagrams added
21/8/2005: VSS database pages reorganised
21/8/2005: railway pages started
1/7/2005: observatory pages started
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