NavList:

I was asked many questions about PCastrolabe. I answer here, no other choice...

Could you describe it  (PCastrolabe.)? 

I suppose I could : While surfing the web, a few years back, I found this : "The Electric Astrolabe" is a fully animated DOS planetarium program created by James E. Morrison under the publishing name Janus. It is still available today. You can still get it there in 2026:
   https://vetusware.com/download/The Electric Astrolabe/?id=13330
You will need to emulate a DOS machine to run his software. You need DosBox , available there https://www.dosbox.com/.

In Appendix B of the instructions of The Electric Astrolabe, we can read this:
"The Electric Astrolabe consists of about 32,000 80386/80387 assembler statements in 36 modules coded for the Borland Turbo Assembler.  About 20,000 statements are executable instructions,The Electric Astrolabe is a DOS program in order to allow high performance animation. Windows did not support high speed animation at the time The Electric Astrolabe was written.  It does now, but the effort required to recode the program for Windows is enormous.  A WINDOWS VERSION WILL BE WRITTEN SOME DAY"

WHEN I READ THE ABOVE STATEMENT, I SAID TO MYSELF "I WILL WRITE THE WINDOWS VERSION" , and I did.

When I read the above statement, I said to myself, "I will write the Windows version". and I did.

When did you develop it?

About a year ago.

Is it a proper astrolable or astrolabe as a metaphor?

It is a proper VIRTUAL astrolable. You cannot take a Sun sight with it... but you can tell the azimuth and height of the visible planets, sun moon and some of the 57 nav. stars, within one degree with zero calculation, from almost anywhere on Earth, almost because I have a bug in the high latitude, a problem with a cosine formula.

All this possible with the ingeniousity of the Anciens, and their ability to use the stereographic projection.

Do you have it available for other platforms?

No, PC only

The name "PCastrolabe" and the graphics appearance suggest an old-school software for Windows/Intel PCs...?

 old-school software . It is written in "aged" VB6, not old,  please, aged "often implying maturation, seasoning, or improvement (like wine or cheese)" AI dixit

I would love to hear more about it.

Voilâ

PS: pictures to follow