SkyChart from 1990

[Martin Vieregg]

There's a tiny nice program SkyChart which has been written for OS/2 1.3 in 1990. It still works on current OS/2 systems:
http://www.hypermake.com/english/favorite.html
then press "SkyChart".

The program shows the night sky on a specific location and a specific time.

But there are two bugs:
- Date bug: the current date is 2000 instead von 2020
- Resolution bug: Screens larger than 1920x1200 immediately crash the program.

The authors are Hans Bloemendaal and Klaas van Ditzhuyzen, Netherlands. Does anyone has still contact with them? If I get the source code, I could try to fix the two bugs.

I like the program more than current Windows programs, because it is so simple.

[Eugene Tucker]

I remember that program it was nice and simple.

[Doug Bissett]

Have you tried Night Vision?

https://hobbes.nmsu.edu/download/pub/os2/apps/science/astro/nvsn26.zip

[Eugene Tucker]

I have and it is good too.

[Eduardo Vila Echagüe]

NightVision OS/2 has already all the functions of SkyChart and more. But if you require access to a larger star data base, there is a Java version 5.2 which runs very well in OS/2.

Eduardo Vila Echagüe

[Martin Iturbide]

Hi

The authors are Hans Bloemendaal and Klaas van Ditzhuyzen, Netherlands. Does anyone has still contact with them? If I get the source code, I could try to fix the two bugs.

I'm trying with a couple of Hans Bloemendaa I found on LinkedIn, let's see if they reply.

Regards

[Martin Iturbide]

Hi Martin

Hans Bloemendaal contacted me back. He does not have the source code and Klaas van Ditzhuyzen used to be one in charge of OS/2 development. He haven't contact Klaas van Ditzhuyzen since 1990, but sadly a friend of him mentioning Klaas decease about 15 years ago.

Sadly, I think we have no chance to get Skymap source code.

Regards