Water, earth and air

[Jorge_Stolfi]

This is the star constellation "Demon meridianus", the noonday demon.

Thanks! So it is "Heavenly domain", but in the astronomical sense, not in the Christian sense.

The Hausbuch text also mentions a lot of stars and "galaxia". ... a star band or galaxy

But surely not "a" galaxy; rather "the" Milky Way.  Which does look like a band of stars to us. 

(Actually the understanding of the Milky Way as a collection of stars, while suggested by some Caliphate astronomers already in the 1100s, became accepted only after ~1600, when the individual starts could be seen with the telescope.  And the notion that there were other galaxies became accepted only in the early 1900s.)

All the best, --stolfi