🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.55 AU - 0.57 AU

Year: 266 Days

Day: 27.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.1

Radius: 12.1

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.92 AU - 1.06 AU

Year: 626 Days

Day: 10.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 12,436,080 km

• M1: 150,795 km (0.072 R)
• M2: 635,193 km (0.081 R)
• M3: 1,049,429 km (0.105 R)
• M4: 2,278,974 km (0.09 R)
• M5: 3,198,253 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 916.1

Radius: 11.1

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.05 AU - 1.16 AU

Year: 734 Days

Day: 9.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 12,436,080 km

• M1: 138,677 km (0.069 R)
• M2: 518,955 km (0.104 R)
• M3: 1,171,651 km (0.093 R)
• M4: 1,526,197 km (0.088 R)
• M5: 1,944,473 km (0.033 R)
• M6: 2,310,689 km (0.102 R)
• M7: 3,145,744 km (0.048 R)
• M8: 3,498,197 km (0.115 R)
• M9: 4,187,394 km (0.117 R)
• M10: 4,615,543 km (0.077 R)
• M11: 5,109,366 km (0.09 R)
• M12: 5,716,733 km (0.083 R)
• M13: 6,939,845 km (0.07 R)
• M14: 7,446,982 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48

Radius: 8.4

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.89 AU - 1.35 AU

Year: 754 Days

Day: 12.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 12,436,080 km

• M1: 105,167 km (0.091 R)
• M2: 502,050 km (0.115 R)
• M3: 1,313,469 km (0.088 R)
• M4: 1,746,854 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.7

Radius: 12.6

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.75 AU - 2.95 AU

Year: 3059 Days

Day: 8.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 12,436,080 km

• M1: 156,629 km (0.053 R)
• M2: 829,371 km (0.057 R)
• M3: 1,486,105 km (0.102 R)
• M4: 1,902,137 km (0.084 R)
• M5: 2,382,047 km (0.086 R)
• M6: 3,082,763 km (0.101 R)
• M7: 3,590,349 km (0.113 R)
• M8: 4,468,339 km (0.115 R)
• M9: 4,896,787 km (0.102 R)
• M10: 5,326,731 km (0.085 R)
• M11: 5,976,734 km (0.064 R)
• M12: 7,241,435 km (0.06 R)
• M13: 7,869,147 km (0.11 R)
• M14: 8,390,197 km (0.054 R)
• M15: 10,459,135 km (0.086 R)
• M16: 11,262,027 km (0.063 R)
• M17: 11,924,745 km (0.111 R)
• M18: 12,426,946 km (0.039 R)
• M19: 17,141,373 km (0.049 R)
• M20: 17,664,217 km (0.091 R)
• M21: 23,070,834 km (0.104 R)
• M22: 23,637,062 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.6

Radius: 14.5

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.84 AU - 3.8 AU

Year: 3846 Days

Day: 9.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 12,436,080 km

• M1: 186,549 km (0.102 R)
• M2: 880,832 km (0.064 R)
• M3: 1,664,276 km (0.105 R)
• M4: 2,220,780 km (0.098 R)
• M5: 3,263,627 km (0.119 R)
• M6: 4,564,530 km (0.118 R)
• M7: 5,267,491 km (0.11 R)
• M8: 5,728,850 km (0.074 R)
• M9: 6,517,530 km (0.076 R)
• M10: 7,411,079 km (0.073 R)
• M11: 8,240,599 km (0.106 R)
• M12: 9,442,169 km (0.102 R)
• M13: 10,586,742 km (0.112 R)
• M14: 11,959,751 km (0.116 R)
• M15: 14,211,798 km (0.101 R)
• M16: 14,683,629 km (0.102 R)
• M17: 16,275,500 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.2

Radius: 9.8

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.34 AU - 3.6 AU

Year: 4110 Days

Day: 13.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 12,436,080 km

• M1: 122,072 km (0.107 R)
• M2: 505,342 km (0.089 R)
• M3: 917,933 km (0.056 R)
• M4: 1,297,163 km (0.111 R)
• M5: 1,870,721 km (0.049 R)
• M6: 2,306,201 km (0.1 R)
• M7: 3,040,128 km (0.099 R)
• M8: 3,666,345 km (0.051 R)
• M9: 4,032,710 km (0.085 R)
• M10: 4,447,395 km (0.03 R)
• M11: 5,148,860 km (0.087 R)
• M12: 5,951,452 km (0.105 R)
• M13: 6,835,127 km (0.116 R)
• M14: 7,392,528 km (0.114 R)
• M15: 8,158,469 km (0.111 R)
• M16: 9,524,747 km (0.115 R)
• M17: 10,559,366 km (0.076 R)
• M18: 12,656,429 km (0.096 R)
• M19: 13,146,661 km (0.078 R)
• M20: 13,598,596 km (0.064 R)
• M21: 14,009,093 km (0.084 R)
• M22: 16,072,646 km (0.097 R)
• M23: 16,473,867 km (0.098 R)
• M24: 18,580,654 km (0.048 R)
• M25: 19,342,556 km (0.045 R)
• M26: 19,993,307 km (0.1 R)
• M27: 21,963,361 km (0.091 R)
• M28: 22,886,978 km (0.09 R)
• M29: 23,249,155 km (0.086 R)
• M30: 25,580,338 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.2

Radius: 7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 5.54 AU - 7.7 AU

Year: 10830 Days

Day: 16.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 12,436,080 km

• M1: 88,113 km (0.081 R)
• M2: 404,064 km (0.096 R)
• M3: 639,531 km (0.103 R)
• M4: 1,175,241 km (0.099 R)
• M5: 2,314,279 km (0.107 R)
• M6: 4,488,235 km (0.075 R)
• M7: 5,465,259 km (0.069 R)
• M8: 6,723,078 km (0.066 R)
• M9: 7,670,930 km (0.065 R)
• M10: 8,560,140 km (0.12 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 18,180 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit