🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.41 AU - 0.67 AU

Year: 260 Days

Day: 23.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 38.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,824,116 km

• M1: 39,045 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.47 AU - 0.71 AU

Year: 297 Days

Day: 28.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,824,116 km

• M1: 224,995 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699

Radius: 14.9

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.83 AU - 1.29 AU

Year: 716 Days

Day: 11.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,824,116 km

• M1: 185,352 km (0.081 R)
• M2: 713,731 km (0.084 R)
• M3: 1,277,117 km (0.119 R)
• M4: 1,977,833 km (0.12 R)
• M5: 2,632,025 km (0.077 R)
• M6: 3,298,184 km (0.094 R)
• M7: 3,928,290 km (0.04 R)
• M8: 4,413,287 km (0.037 R)
• M9: 5,269,884 km (0.048 R)
• M10: 5,766,998 km (0.093 R)
• M11: 6,707,669 km (0.102 R)
• M12: 7,702,196 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.1

Radius: 11.5

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.41 AU - 2.47 AU

Year: 2500 Days

Day: 7.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,824,116 km

• M1: 143,165 km (0.072 R)
• M2: 553,811 km (0.077 R)
• M3: 1,003,203 km (0.113 R)
• M4: 1,560,156 km (0.096 R)
• M5: 2,182,184 km (0.071 R)
• M6: 2,618,711 km (0.097 R)
• M7: 3,766,276 km (0.116 R)
• M8: 4,313,954 km (0.114 R)
• M9: 5,826,687 km (0.117 R)
• M10: 6,790,397 km (0.111 R)
• M11: 7,541,677 km (0.082 R)
• M12: 8,347,561 km (0.079 R)
• M13: 8,754,318 km (0.078 R)
• M14: 9,571,122 km (0.028 R)
• M15: 11,356,423 km (0.114 R)
• M16: 12,328,061 km (0.088 R)
• M17: 13,354,004 km (0.089 R)
• M18: 13,817,607 km (0.076 R)
• M19: 14,825,897 km (0.104 R)
• M20: 15,831,344 km (0.094 R)
• M21: 16,193,670 km (0.086 R)
• M22: 16,561,681 km (0.11 R)
• M23: 19,062,209 km (0.094 R)
• M24: 19,888,887 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 867.2

Radius: 6.2

Gravity: 22.56 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.98 AU - 7.42 AU

Year: 11377 Days

Day: 17.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 52,824,116 km

• M1: 77,043 km (0.087 R)
• M2: 271,371 km (0.113 R)
• M3: 584,928 km (0.059 R)
• M4: 1,482,066 km (0.088 R)
• M5: 1,996,533 km (0.081 R)
• M6: 2,843,856 km (0.072 R)
• M7: 3,608,151 km (0.054 R)
• M8: 3,825,966 km (0.059 R)
• M9: 4,288,073 km (0.094 R)
• M10: 5,463,314 km (0.116 R)
• M11: 6,757,037 km (0.085 R)
• M12: 7,519,088 km (0.103 R)
• M13: 7,830,252 km (0.111 R)
• M14: 8,057,940 km (0.118 R)
• M15: 8,622,073 km (0.072 R)
• M16: 9,776,670 km (0.083 R)
• M17: 11,144,892 km (0.11 R)
• M18: 11,844,860 km (0.11 R)
• M19: 12,949,341 km (0.076 R)
• M20: 19,683,489 km (0.076 R)
• M21: 23,130,972 km (0.119 R)
• M22: 23,884,646 km (0.1 R)
• M23: 25,740,258 km (0.116 R)
• M24: 29,406,304 km (0.109 R)
• M25: 34,856,304 km (0.119 R)
• M26: 38,929,106 km (0.113 R)
• M27: 45,469,226 km (0.109 R)
• M28: 50,005,183 km (0.115 R)
• M29: 53,516,993 km (0.095 R)
• M30: 55,835,311 km (0.057 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.3

Radius: 3

Gravity: 66.7 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.44 AU - 8.72 AU

Year: 12358 Days

Day: 15.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 52,824,116 km

• M1: 37,250 km (0.103 R)
• M2: 133,142 km (0.08 R)
• M3: 292,165 km (0.09 R)
• M4: 485,445 km (0.12 R)
• M5: 591,809 km (0.074 R)
• M6: 1,123,181 km (0.117 R)
• M7: 1,491,192 km (0.114 R)
• M8: 1,625,082 km (0.114 R)
• M9: 1,951,654 km (0.036 R)
• M10: 2,646,536 km (0.07 R)
• M11: 3,168,632 km (0.1 R)
• M12: 3,782,881 km (0.061 R)
• M13: 4,032,560 km (0.103 R)
• M14: 4,352,400 km (0.034 R)
• M15: 5,838,655 km (0.074 R)
• M16: 6,400,994 km (0.071 R)
• M17: 8,303,280 km (0.108 R)
• M18: 10,020,365 km (0.102 R)
• M19: 10,283,507 km (0.111 R)
• M20: 10,933,809 km (0.093 R)
• M21: 13,875,053 km (0.103 R)
• M22: 15,075,725 km (0.089 R)
• M23: 19,090,334 km (0.104 R)
• M24: 24,608,700 km (0.036 R)
• M25: 25,183,904 km (0.1 R)
• M26: 28,194,411 km (0.067 R)
• M27: 28,403,250 km (0.058 R)
• M28: 28,718,453 km (0.115 R)
• M29: 30,438,828 km (0.12 R)
• M30: 32,340,666 km (0.034 R)
• M31: 32,914,823 km (0.069 R)
• M32: 33,146,400 km (0.084 R)
• M33: 34,558,455 km (0.069 R)
• M34: 35,643,338 km (0.094 R)
• M35: 38,647,264 km (0.109 R)
• M36: 40,741,035 km (0.098 R)
• M37: 48,363,496 km (0.057 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 13,336 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit