Welcome to John's web pages

 

home

BAA VSS database

shortcut to VSS software

Lymm Observatory

railway signalling



shortcuts

lightcurves

optimal photometry

signal box diagrams



    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.

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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