Difference between revisions of "Harr(Star System)"

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Harr is a binary star in the L12 square of galactic map. This solar system is the home of Raharrs, and the largest known astroengineering project of the Ancients.

System map

Planets of the system (not in scale)


Harr Planet star.png
  • Orbit radius: 0.29 a.e.
  • Orbital period: 24 days
  • Radius: 2,205,000 km and 275,000 km
  • Number of satellites: 0

The stars of the system, the white star and the yellow dwarf (spectral types A1 V and G2 V). Both stars are relatively close to each other, but because of the effects of stabilizers, they remain fairly stable in terms of activity. The orbits of the planets in the system are also kept stable - because of the stabilizers, the gravitational fields are distorted and the two suns behave like a single celestial body as a result. Both suns rotate around their center of mass at a distance of 0.29 AU. from each other.


Harr Planet stab.png

These objects of unknown composition are among the most massive artifacts of the Ancients, being 2568 kilometers in diameter. Apparently, their task is to control the stars of the system in order to ensure comfortable living conditions in the planetary system. They rotate at such a close distance from the stars that they are actually inside the corona, on the very border of the transition zone. In this regard, any study of these objects in the foreseeable future is not possible.


Harr Planet 1.png
  • Orbit radius: 0.9 a.e.
  • Orbital period: 0.34 years
  • Planet radius: 4,600 km
  • Number of satellites: 0

The first planet in the system. Because of it being too close to the suns, its incredibly high temperature makes a quite hellish environment. The surface is constantly roasted in large amounts of radiation, and the tidal effects of the attraction of the suns and the gravitational distortions caused by the Stabilizers do not allow the tectonics to subside. As a result, the entire planet resembles a ball of magma in a constantly melted state. There is nothing on the ash-covered rocks and lava-filled fields that even remotely resemble organic matter. Emissions of toxic gases give the planet a small atmosphere, which, however, would still be unbreathable by any known living organism. The average surface temperature varies due to the ellipticity of the orbit and depends on the position of the planet in orbit - from +500 degrees Celsius in aphelion to +800 degrees in perihelion. Gravity - 0.8 Earth


Harr Planet 2.png
  • Orbit radius: 6.5 a.e.
  • Orbital period: 6.78 years
  • Planet radius: 7,000 km
  • Number of satellites: 3

Homeworld of the raharrs. It is the second planet of the system, located just at the beginning of the "zone of life" of the two stars. An Earth-like planet, the ratio of land to water is about 30 and 70 percent respectively. The atmosphere is nitrogen-oxygen. The two suns, as well as the admixture of gases give the sky on the planet a green tint, turning into orange or gold during sunrises and sunsets. The climate is mainly tropical and temperate, the circumpolar region is very small and almost immediately passes into the polar. The planet has three satellites orbiting the planet for 31.30 and 29 days. Gravity - 1.1 Earth.


Harr Planet 3.png
  • Orbit radius: 8.5 a.e.
  • Orbital period: 10.12 years
  • Planet radius: 8,000 km
  • Number of satellites: 1

Hilor is the third planet of the system, located almost exactly in the center of the zone of life. However, for some reason, there is currently a deep ice age on it. with surface temperatures ranging from +5 to -60 degrees Celsius. The sea is covered with a crust of ice and, in a liquid state, there is practically no water on the surface of the planet at all. Despite this, there is a stunted and poor biosphere on the planet that somehow adapted to the harsh conditions, mostly accumulating around active volcanoes, spewing valuable heat and melting ice. Theoretically, under the layer of ice from the oceans, there can be more diverse life near the seabed. However, no attempts were made to penetrate under the crust. For the raharrs, the planet is of no interest as an object of colonization, due to the temperatures being too low on the surface. Gravity - 1.5 Earth


Harr Planet 4.png
  • Orbit radius: 14.3 a.e.
  • Orbital period: 22.09 years
  • Planet radius: 5,900 km
  • Number of satellites: at least 7200 (0)

The most miserable planet of the system. By cosmic standards, it just survived a destructive collision with another celestial body no more than a couple of thousand years ago. Now it is a small planetoid with extremely inhospitable conditions for life. The "atmosphere" is a suspension of dust and some gases. The surface, on which the giant crater from the collision is clearly visible, is constantly bombarded by debris circling around the planet in abundance. As a result, no landings on this planet were undertaken in view of the extreme danger and complexity of maneuvering in the cloud of the planet’s debris. The exciting fact is that the planet is in the goldilocks zone of the stars and, according to scientists' estimates, there is a high probability that life could exist on it before the impact ruined it. Several times, there were sensational reports that asteroids containing traces of processing were found in the wreckage, or even entire preserved buildings, but none of these statements received any confirmation, or they turned out to be a falsification. At the moment, at least seven thousand large fragments rotate around the planetoid, and countless fragments with a diameter of tens of meters or less. All of them will return to the planet extremely quickly within the next thousand years, if not the next centuries. Gravity - 0.4 Earth.


Harr Planet 5.png
  • Orbit radius: 25.3 a.e.
  • Orbital period: 51.99 years
  • Planet radius: 8,100 km
  • Number of satellites: 0

The fifth planet of the system is a relatively boring sight. It is a brownish planetoid almost without an atmosphere and without life, containing several unusually rich deposits of rare-earth minerals, which made planetside mining operations to be viable. Despite the fact that the planet was the last to form, it cooled down very quickly as it turned out to be deprived of heavy elements, which prevented it from issuing a full-fledged core and magnetosphere. Because of this, in spite of its size, gravity is quite low on it - 0.9 terrestrial.


  • Orbit radius: 29-40 a.e.
  • Orbital period: ---
  • Radius: from 20 m to 400 km

An asteroid belt is located between Raos and Gaulurr, which does not represent anything extraordinary except for its density - the estimated total mass of the asteroid field could be 97% the mass of a planet that is the size of Harr.
Perhaps the belt was formed by itself, or it is the remains of a building material left by the Ancients here.
Resources are being extracted in the belt, especially of rare-earth elements.


Harr Planet 6.png
  • Orbit radius: 54 a.e.
  • Orbital period: 162.11 years
  • Planet radius: 106,400 km
  • Number of satellites: 143 (8)

The largest and most massive planet of the system is also called the most beautiful by many. It has the largest number of satellites - 8 planet-like bodies, and more than one hundred and forty captured asteroids and cometary nuclei, which are inferior satellites. Its bright violet-purple color is due to the composition of the atmosphere. Gaulurr is an extremely active planet with the most violent winds, with speeds that can easily reach thousands of kilometers per hour or more. It is the only gas giant in the system having a wide and well visible dust ring. The planet contains several research probes and an extensive network of industrial gas extractors producing Hephrene - a very important resource for space travel, a gas for running FTL engines and reactors. Hephrene provides the planet with its unique purple color. Amount of gas is truly colossal, hephrene constitutes approximately 85% of the mass of Gaulurr. It is estimated that at least 70% of all the hephrene explored in the Galaxy is concentrated on Gaulurr, as well as it being the only known location where hephrene can be detected by naked eye. This makes Harr one of the most important solar systems of the Alliance.


Harr Planet 7.png
  • Orbit radius: 95.5 a.e.
  • Orbital period: 381.25 years
  • Planet radius: 64,800 km
  • Number of satellites: 67 (5)

The smallest gas giant of the system, in size and properties most reminiscent of Jupiter.


Harr Planet 8.png
  • Orbit radius: 154 a.e.
  • Orbital period: 780.71 years
  • Planet radius: 84,300 km
  • Number of satellites: 43 (4)

The most distant planet of the system and the second largest gas giant. It consists mainly of hydrogen and helium, which gives the planet a rich blue color as a result. Harot, like Hreot, was considered dim stars for a long time after its discovery, because of its extremely long orbital cycle (both planets have not managed to complete even two orbital turns since their discovery). The status of the planets was confirmed only after the development of technology that allowed a fairly accurate triangulation of the distance to them.


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