Table of Contents

System HX-21

HX-21 is a binary star system southwest of the Samurai Sector that was visited by the Eucharis in YE 31 and in YE 35.

Binary Stars

Primary:

Heading Details
Type: K0 (Spectral Class)
Size: V
Stellar radii: .908
Stellar mass: .825
Temp: 4,900º K
Image

Companion (White dwarf)

Heading Details
Type: DA (Spectral Class)
Stellar radii: .017
Stellar mass: .36
Temp: 14,000º K
Stellar radius: .2 AU
Length of year: .1 years (35.97 days)
Image

Planet 1

Heading Details
Type: Terrestrial
Stellar radius: .4 AU
Planetary radius: 6,093 km
Surface gravity: .840 G
Escape Velocity: 8.72 km/sec
Rotation (day): hr
Length of year: .28 years (101.73 days)
Number of satellites: 2
Image

Average temp: 183.88º C This planet's atmosphere is composed of carbon dioxide, methane, and nitrogen.

Planet 2

Heading Details
Type: Terrestrial
Stellar radius: .7 AU
Planetary radius: 5,312 km
Surface gravity: .625 G
Escape Velocity: 6.87 km/sec
Rotation (day): hr
Length of year: .64 years (235.51 days)
Number of satellites: 0
Image

Average temp: 43.54º C This planet's atmosphere is composed of nitrogen, oxygen, and carbon dioxide. It has dense clouds with high concentrations of carbonic acid.

Planet 3

Heading Details
Type: Terrestrial
Stellar radius: 1 AU
Planetary radius: 9,649 km
Surface gravity: 1.12 G
Escape Velocity: 12.35 km/sec
Rotation (day): hr
Length of year: 1.1 years (402.13 days)
Number of satellites: 1
Image

Average temp: 15.90º C This planet's atmosphere is nitrogen, oxygen, and trace elements. The polar regions are ice covered, which covers approximately twenty-five percent of the surface. Oceans cover sixty-five percent of the surface. Land masses account for thirty-five percent of the surface, there are four major landmasses, and numerous chains of islands. Plant life is abundant. Oceans support a variety of marine life forms. A variety of simple animals are present on the land masses.

In YE 34, someone left the following on the surface:

Planetoid belt

Heading Details
Type: Planetoid belt
Stellar radius: 1.6 AU

General composition rock, dust, and various metals. Some of the larger objects have ice deposits.

Planet 4

Heading Details
Type: Small Gas Giant
Stellar radius: 10.0 AU
Planetary radius: 31,000 km
Length of year: 34.82 years (12,716.37 days)
Number of satellites: 4 moons 4 rings
Image

Composition hydrogen, and helium.

Planet 5

Heading Details
Type: Large Gas Giant
Stellar radius: 38.8 AU
Planetary radius: 71,000 km
Length of year: 266.09 years (97,187.60 days)
Number of satellites: 7 moons 1 ring
Image

Composition hydrogen, helium and neon.

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