The solar system of the planet that the game takes place in consists of five planets. The sun is called Mure.
The innermost planet is named Indix, is small but is a watery world with some land; it takes 66 days to revolve around the sun, and has a 10 degree axial tilt, and gravity of .6 that of Teralan, a mean temperate of 95 degrees, which varies by +/- 60 degrees.
The next planet is named Nogen, is slightly larger, and also a watery world with little land; it takes 121 days to revolve around the sun, and has a 17 degree axial tilt, and gravity of .75 that of Teralan, a mean temperate of 80 degrees, which varies by +/- 45 degrees.
The third planet is the one the players live on, is named Teralan, and is mostly frozen; the only unfrozen land is a narrow band around the middle - this land would be represented by about thirty horizontal rows of hex paper, five high, if the entire world were mapped out. Teralan has a moon named Gegris, and has no axial tilt at all. This planet takes 336 days (12 months of 28 days each) to revolve around the sun. it has a mean temperate of 68 degrees in the unfrozen part, which varies depending on your distance from the equator - temperatures on the edges of the ice are, of course, below freezing, and temperatures near the poles are so cold, the oxygen freezes out of the air.
The next world out is smaller, about the size of Indix, is named Roen, and has a ring - probably a moon that either never formed, or broke up later; it takes 440 days to revolve around the sun, and has an elliptical path that goes over and under the sun, in relation to the other planets' paths, which are on a plane. It has an 88 degree axial tilt, making its axis almost perpendicular to its orbit. It has a gravity of .3 that of Teralan, a mean temperate of 60 degrees, which varies by + 10 to - 65 degrees
The final planet is much further out, much larger than all the others, and is a completely frozen world named Hoar. It has a period of 1344 days, and has a 13 degree axial tilt. it has a gravity of 4.5 that of Teralan, a mean temperate of 15 degrees, which varies by + 10 to -80 degrees.
Gegris, the moon of Teralan, has a 28 day period. The times indicate approximately when it is in the sky in Attellaria; day is day of the month.
Day 1-4: waxing crescent phase, 3-9 p.m.
Day 5-8: half moon, 7 p.m-1 a.m.
Day 9-12: waxing gibbous, 11 p.m. to 5 a.m.
Day 13-16: Full, 3 a.m. to 9 a.m.
Day 17-20: Waning gibbous, 7 a.m. to 1 p.m.
Day 21-24: Half moon, 11 a.m. to 5 p.m..
Day 25-28: waning crescent, 1 p.m. to 7 p.m.
Lunar eclipses occur once per year, as far as the inhabited portion of Teralan can see, lasting long enough to cover or be seen by portions of Attellaria as follows:
Year ending in:
1 - January 1, northermost map only.
2 - February 5, northern two maps only.
3 - March 11, second from north maps only.
4 - April 15, second from north and middle maps only.
5 - May 21, middle maps only.
6 - June 28, middle map and second from bottom maps only.
7 - August 5, second from bottom map only
8 - September 10, second from bottom and bottom map only
9 - October 16, bottom map only
10 - November 21, bottom map only, barely visible to southern parts
Note that only three of the 'columns' of hex paper maps can actually see the occultation of the sun by the moon each year, and the full darkness only lasts an hour or so. In 1166, the most complete eclipse was visible in Attellaria.