The Annals of the Fornaxium

Discussions about constructed worlds, cultures and any topics related to constructed societies.
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The Annals of the Fornaxium

Post by teotlxixtli »

Hello, all! This forum will be where I post worldbuilding information about my setting, the Fornaxium (derived from Latin fornax, meaning "forge"). Any input is much appreciated, because I only know enough to know I know very little.

As a note, names will be placeholders that don't have reality in the setting; all future languages and cultures will have their own names for things as they are developed.

The Solar System


The solar system of the Fornaxium is a P-type binary star system, wherein the dual suns orbit around a shared point between them and the planets orbit both stars. Solis Major, the larger of the two stars, is a K Class Star about 0.63 solar masses in size. Solis Minor is an M Class Star about 0.45 solar masses in size. To a planetary observer, Solis Major would appear yellowish orange, while Solis Minor would appear orange red.

Image Image

Pictured here are two of the planets within the solar system; the Inner Sphere and the Outer Sphere respectively

Only three planets orbit these dual suns. The first of these, the Inner Sphere, is a terrestrial planet similar to Venus in our solar system, with a 151.11-day year, a yellow-tan shade, and a complete lack of natural satellites. Its radius is 4245.75 km, and it is visible with the naked eye from the surface of the next-furthest planet from the sun, the primary setting of the Fornaxium.

The World (as we'll call it for now) is an Earth-like planet with a 407.11-day year and a radius of 7101.01 km. Gravity on this planet is 10.9 m/s squared (which from what I've read encourages larger lifeforms), and its axial tilt is 26.19° (meaning seasons are comparable to ours, but a bit more extreme). The World has one natural satellite, the Moon, which has a 27.45-day orbital period and a radius of 1936.48 km.

Between the World and the furthest planet in the solar system is a meteor belt of considerable size called the Interplanetary Curtain, comprising many dwarf planets and other rocky bodies that would occasionally be observable to those living on the surface of the world with the naked eye, though most would require a telescope.

The furthest planet from the twin stars, the Outer Sphere, is a purple-colored gas giant similar to Jupiter or Saturn, with an orbital period of 7342.54 days (about 18 years from the perspective of those living on The World) and more than 80 moons. Some of these contain liquid water and breathable atmospheres, and I hope that the inhabitants of the world may one day be visited by bizarre, silicon-based lifeforms from these moons. But I won't get ahead of myself.

I hope this has piqued your interest! If anyone knows anything about what solar eclipses in a P-type system would be like, that would be very helpful.
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Man in Space
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Re: The Annals of the Fornaxium

Post by Man in Space »

I will read this in greater depth later, but for the time being, might I recommend Shagomir's Planet Calculator? It's what I use for things in Twin Aster.
Twin Aster megathread


CC = Common Caber
CK = Classical Khaya
CT = Classical Ĝate n Tim Ar
Kg = Kgáweq'
PO = Proto-O
PTa = Proto-Taltic
PTO = Proto-Tim Ar-O
STK = Sisỏk Tlar Kyanà
Tm = Təmattwəspwaypksma
Posts: 83
Joined: 05 Jan 2021 04:37

Re: The Annals of the Fornaxium

Post by teotlxixtli »

Here's the full schematics for each of the celestial bodies in the solar system:

Solis Major

K Class Star
4.45 kK temperature
Yellow orange color
0.625 solar masses
Class VI (Subdwarf)

Solis Minor

M Class Star
3.7 kK temperature
Orange red color
0.45 solar masses
Class VI (Subdwarf)

The Inner Sphere

151.1050631-day year
4245.75 km radius
26676.83402 km circumference
226526336.1 km² area
3.205913971 x 10^11 km³ volume
1.767976866 x 10^24 kg mass
6.473526627 m/s² gravity
58.697° axial tilt
No natural satellites

The World

407.1087968-day year
7101.012899 km radius
44616.97991 km circumference
633651499.8 km² area
1.499855824 x 10^12 km³ volume
8.271308662 x 10^24 kg mass
10.90062881 m/s² gravity
26.19271749° axial tilt

The Moon

27.45325654 orbital period
1936.47776 km radius
12167.24861 km circumference
47123212.66 km² area
3.041768443 x 10^10 km³ volume
1.677454943 x 10^23 kg mass
0.0834753961 m/s² gravity

The Outer Sphere

7342.542562-day year
64862 km radius
407539.9654 km circumference
5.286771447 x 10^10 km² area
1.14305232 x 10^15 km³ volume
14.93° axial tilt
82 natural satellites
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