A plot program for VSNet charts

VSNCHART.EXE lists and plots chart files from VSNet, Kyoto University, Japan.
VGA and MSDOS5 (or later) are required. It can be installed under a Windows icon.

VSNCHART.ZIP contains 3 files;- INFO-VSN.TXT + VSNCHART.EXE + VSNALPH.BIN

or download them separately;

1. INFO-VSN.TXT (description)
2. VSNCHART.BIN (rename as VSNCHART.EXE)
3. VSNALPH.BIN (do not rename this file)

Sample chart: SN1998S Program operation is largely self-evident with single key presses listed on screen. Facilities include;- Zoom Scroll North/South field Faint magnitude limiting Comparison lettering Examples of re-lettered charts;- V1413 Aql DV UMa

The program was originally compiled in November 1995 from MS QuickBasic4.5.
A revised version was written in May 1998.
Here is the source code listing.