# Is there a given fixed constellation starting point for various astrological bodies to calculate their position from for any day?

I might need to calculate the position/phase of various astrological items for my TDE troupe in the year 1013 Bosparans Fall... and while I know some of their cycle timesDSA2 - Enzyclopaedia Aventurica p55 and at least the calculations for Mada are given in the eternal calender perfectly $(\text{Day}+30*(\text{Month}-1)+\text{Year}_\text{Hal}\mod{28} = 0(\text{New}))$. Yet I lack starting points for some of the other planets and constellations.

However, I remember that there was a tool to calculate the astrological data for any given day at some point: Is there a publisched point or constellation from which one can calculate forward/backwards and where is it noted?

• TDE has its own stars. – Trish May 30 '18 at 5:03
• Are the constellations important in the game? Because you'd think they'd have this information written down somewhere important. Or is it just a flavor thing for you? – Erik May 30 '18 at 5:35
• @Erik It is important enough to research it for prophecy, daemonlogy, ritual magic and some uses of alchemy. I vaguely remember the G7 had lots of starbound stuff. – Trish May 30 '18 at 8:32

## YES

It is hidden in the Maps booklet that was part of old DSA 2 Box named "Das Land des Schwarzen Auges". This one also contained the Encyclopaedia Aventurica: It has a whole sky map of the northern sky for the 1st Praios of the year 12 after Hal - or 1005 after Bosparans Fall.

Since everything rotates around the north star with the given periods a nightsky can be calculated.

## And one of these was it I remembered...

The automation of the sky calculations was undertaken (at least) twice by fans:

• once by Andreas Nortmann in 2001, who made the Simulation of the aventurian nightly sky, still available via orkenspalter.de but the installer fails on 64bit systems. It had also automated the calculations for summoning based on constellations.
• once by Denny Vrandecic in 2008, who made Niobaras Foliant, still available via orkenspalter.de, and working under newer 64bit sytems.

Both work well before the Borbarad Campaign, which messed up the nightsky and contains specific constellations for some dates.

• Unless you mean something else, 32-bit Windows executables operate fine on 64-bit systems. – SevenSidedDie Jun 6 '18 at 19:38
• @SevenSidedDie For some reason, the installer you get from the website says "the program can't be executed, call the maker" – Trish Jun 7 '18 at 16:09
• Ah, that makes sense! Some old installers cut corners at the time and now won’t work on modern systems. – SevenSidedDie Jun 7 '18 at 16:28