Tuesday 19 February 2019

The Rustum Night Sky

Poul Anderson, Orbit Unlimited, part four, 4, p.113.

There are three interesting features.

Raksh, the outer moon...
at its closest and when full, "...twice the angular diameter of Luna seen from Earth...";

"...you saw it change size and phase while hanging in the sky."

Sohrab, the inner moon...
crossing the sky "...fast enough for a man to watch."

Constellations
Orion
Draco
Ursa Major
Cassiopeia
Sol above Bootes

Rustum is only twenty light-years from Sol, not enough to change the constellations.

1 comment:

Sean M. Brooks said...

Kaor, Paul!

Altho I'm sure pedantic astronomers on Rustum could point out some differences if you asked them!

Sean