Gliese 412

Gliese 412
 * Union System -
 * Upward Sector
 * M-0 Galaxy
 * UAS - Ping and Pong

First surveyed in 2110 OTT as part of the Saran Survey Assistance initiative. Gliese 412 was ound to have no planets, but an extensice asteroid belt and several large planetoids. The largest with a diameter of almost 2500 km.  (Sun Chen)

There are secven large planetoids

 * 1) Sun Chen,
 * 2) Han Hoi,
 * 3) Peng Pah,
 * 4) Nu Than,
 * 5) Pleong,
 * 6) Muthe
 * 7) Dim Dim

and a large number of smaller objects. Due to te close vicinity to Sol, mining operations commenced almost immideatley and do so to this day.

Several minin corporations operate large smelter stations.

Shown is the SII- Space station Dim Dim.

There is a Class C port in  the otmost orbit, mostly for ore and raw material freight operations, but there is a twice weekly space bus connection, clipper and long range shuttle servive to Sol Hub and othr destinations.

System Info
Gliese 412 is a pair of stars that share a common proper motion through space and are thought to form a binary star system. The pair have an angular separation of 31.4″ at a position angle of 126.1°.[11] They are located 15.8 light years distant from the Sun in the constellation Ursa Major. Both components are relatively dim red dwarf stars.

The two stellar components of this system are currently separated by about 190 AU.[12] The primary has about 48% of the Sun's mass, while the secondary is only 10%.[8] The primary has a projected rotation velocity at the equator of less than 3 km/s. The secondary has a rotation velocity of 7.7 ± 1.7 km/s.[10]

The primary star was monitored for radial velocity (RV) variations caused by a Jupiter-mass companion in a short period orbit. It displayed no significant excess of RV variation that could be attributed to a planet.[13] A search of the system using near-infrared speckle interferometry also failed to detect a companion orbiting at distances of 1–10 AU.[14] Nor was a brown dwarf been detected orbiting within this system.[15]

The space velocity components of this system are U = 141, V = –7 and W = 7. They are members of the halo population of the Milky Way galaxy

A: G 176-11, LTT 12976, LFT 757, LHS 38, NLTT 26245, FK5 4979, SAO 43609, HIP 54211, PLX 2582.[2]

B: WX UMa, G 176-12, LTT 12977, LFT 758, LHS 39, NLTT 26247.[3]