Discovered by unknown Egyptians
Discovery site Egypt
Detection date 1859
Detection method Visual notice of wormhole
Named after Horus (Egyptian deity)
Adjective Horoid
Orbital characteristics
Satellite of Amun-Ra
Semimajor axis 115,190,360 km
0.77 AU
Orbital period 280 d
(211 Horoid days)
Physical characteristics
Equatorial diameter 9460 km
(0.74 Earths)
Mass 2.45e+24 kg
(0.41 Earths)
Mean density 6620 g/L
Equatorial gravity 0.89 g
Rotation period 31.8 h
Albedo 0.37
Avg. Surface temp. 290 K
Atmospheric characteristics
Atmospheric pressure 1.3 atm (sea level)
Atmospheric composition 68% nitrogen (N2)
24% oxygen (O2)
5% argon
1% carbon dioxide
The Natural History of Horus is a project by Dromaeosaurus, known here as Concavenator. It details the life, geography, and astronomy of a planet discovered in the 19th century when a wormhole leading to the planet was found in Egypt, among trees. Charles Darwin was one of the first people to set foot on the new planet.[1]

The Natural History of Horus is notable for using quotes from biologists studying the life of Horus. Much of the articles describing Horus will be made up of these quotes; nevertheless Domaeosaurus has answered questions pertaining to his organisms, which results in non-quote supplementary material.


Horus is located in the Amun-Ra system, along with seven other planets: Seth, Ramses, Tutmosis, Bes, and the twin planets Isis and Osiris (listed in order of increasing distance from Amun-Ra). Horus is located between Seth and Ramses. Between Horus and Ramses is an asteroid belt, named White Nile and Blue Nile.

Amun-Ra itself is a K0-class star, and has a temperature of about 5260 K. It is slightly smaller than the Sun.[2]

Geography of Horus

Horus has four continents: Sekhmet, Bastet, Kephri, and Bes. All are named after Egyptian deities, much like Horus, and the Passage to Earth is located along the coast of Memphis, in northeastern Bastet. In addition, chrysonesian communities form floating rafts with their own lifeforms. These rafts can reach truly gigantic sizes.

The map below shows Horus, without any sea ice. Light blue is shallow seas, brown is mountains; yellow (land) is deserts; pink is tundra; light red is spongegrass prairies and open woodland; dark red is twilight forest and other rainforests; and yellow (sea) is chrysonesian communities.

Map of horus by concavenator-d6l81dh

Map based on the satellite survey of 1971, with sea ice erased.

Bastet is the largest continent and spans from 60° north to 30° south. All of the main Horoid biomes can be found on Bastet due to its wide longitudinal range and large size. On Bastet, one can find tundra, desert, spongegrass prairie, and twilight forest. The Sea of Luxor (tropical) and the Sea of Tanis (temperate) support ecological communities similar to coral reefs. The continent also has two peninsulas: Seth and Anubis. Seth is dry, and has many mountains, while Anubis is wet and host to rainforests and an outer fringe of spongegrass prairie.

Kephri is connected to Bastet by an island chain crossing the shallow Sea of Memphis. It is home to the most arid desert on the planet, which covers half of its surface area; nevertheless it is also home to rainforests on the two 'horns' and spongegrass prairie in the south. The extreme southern tip is tundra.


  1. Dromaeosaurus. (2013, August 28). Natural History of Horus [Msg 1]. Message posted to
  2. Dromaeosaurus. (2013, August 30). Re: Natural History of Horus [Msg 11]. Message posted to
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