🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.8

Radius: 13.1

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.68 AU - 0.72 AU

Year: 378 Days

Day: 5.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,060,864 km

• M1: 163,062 km (0.114 R)
• M2: 641,625 km (0.088 R)
• M3: 1,067,231 km (0.114 R)
• M4: 1,590,824 km (0.064 R)
• M5: 2,845,800 km (0.118 R)
• M6: 3,266,021 km (0.063 R)
• M7: 3,739,348 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.3

Radius: 12.1

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.67 AU - 0.73 AU

Year: 378 Days

Day: 5 Hours

Environment

Temp: -142 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,060,864 km

• M1: 150,495 km (0.054 R)
• M2: 627,862 km (0.113 R)
• M3: 1,115,402 km (0.107 R)
• M4: 1,492,837 km (0.082 R)
• M5: 1,957,787 km (0.077 R)
• M6: 2,337,766 km (0.055 R)
• M7: 2,776,985 km (0.067 R)
• M8: 3,176,412 km (0.077 R)
• M9: 3,765,229 km (0.088 R)
• M10: 4,244,092 km (0.081 R)
• M11: 4,653,691 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.2

Radius: 13

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.76 AU - 0.8 AU

Year: 445 Days

Day: 7.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,060,864 km

• M1: 161,715 km (0.099 R)
• M2: 587,321 km (0.086 R)
• M3: 1,006,195 km (0.096 R)
• M4: 1,884,036 km (0.095 R)
• M5: 2,426,029 km (0.081 R)
• M6: 2,866,295 km (0.093 R)
• M7: 3,899,268 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.7

Radius: 12

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.74 AU - 2.26 AU

Year: 1826 Days

Day: 13.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,060,864 km

• M1: 149,299 km (0.039 R)
• M2: 560,244 km (0.084 R)
• M3: 1,313,619 km (0.071 R)
• M4: 2,019,272 km (0.092 R)
• M5: 2,715,800 km (0.063 R)
• M6: 4,781,298 km (0.118 R)
• M7: 6,232,846 km (0.106 R)
• M8: 6,921,295 km (0.071 R)
• M9: 8,267,227 km (0.054 R)
• M10: 9,379,039 km (0.061 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.5

Radius: 13

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.37 AU - 2.75 AU

Year: 2645 Days

Day: 5.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 119.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,060,864 km

• M1: 161,715 km (0.072 R)
• M2: 595,549 km (0.04 R)
• M3: 1,032,375 km (0.109 R)
• M4: 2,935,559 km (0.04 R)
• M5: 6,040,164 km (0.107 R)
• M6: 7,327,453 km (0.049 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 322.1

Radius: 4.5

Gravity: 15.91 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 6.8 AU - 9.6 AU

Year: 15161 Days

Day: 24.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 156.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,060,864 km

• M1: 103,671 km (0.109 R)
• M2: 268,827 km (0.085 R)
• M3: 414,685 km (0.094 R)
• M4: 1,742,666 km (0.081 R)
• M5: 2,709,816 km (0.089 R)
• M6: 3,722,444 km (0.089 R)
• M7: 4,044,977 km (0.093 R)
• M8: 5,558,159 km (0.052 R)
• M9: 6,650,822 km (0.025 R)
• M10: 15,302,217 km (0.11 R)
• M11: 15,505,819 km (0.111 R)
• M12: 16,408,942 km (0.098 R)
• M13: 19,328,045 km (0.079 R)
• M14: 19,645,791 km (0.086 R)
• M15: 21,286,580 km (0.087 R)
• M16: 22,927,818 km (0.115 R)
• M17: 28,764,828 km (0.065 R)
• M18: 34,812,023 km (0.112 R)
• M19: 41,128,344 km (0.104 R)
• M20: 45,457,856 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 547

Radius: 6.2

Gravity: 14.23 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.94 AU - 11.52 AU

Year: 18106 Days

Day: 18.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,060,864 km

• M1: 77,193 km (0.105 R)
• M2: 407,056 km (0.115 R)
• M3: 933,491 km (0.105 R)
• M4: 1,250,339 km (0.03 R)
• M5: 1,479,523 km (0.104 R)
• M6: 2,100,504 km (0.101 R)
• M7: 3,640,913 km (0.086 R)
• M8: 3,991,122 km (0.085 R)
• M9: 4,460,410 km (0.037 R)
• M10: 5,852,568 km (0.108 R)
• M11: 6,626,138 km (0.119 R)
• M12: 6,971,560 km (0.101 R)
• M13: 7,651,482 km (0.106 R)
• M14: 8,676,377 km (0.079 R)
• M15: 10,238,029 km (0.103 R)
• M16: 11,357,321 km (0.056 R)
• M17: 12,361,272 km (0.049 R)
• M18: 16,576,192 km (0.086 R)
• M19: 23,099,706 km (0.119 R)
• M20: 27,141,841 km (0.104 R)
• M21: 28,361,812 km (0.082 R)
• M22: 37,942,358 km (0.097 R)
• M23: 38,768,438 km (0.114 R)
• M24: 45,814,049 km (0.076 R)
• M25: 47,223,560 km (0.054 R)
• M26: 49,636,873 km (0.118 R)
• M27: 50,293,907 km (0.1 R)
• M28: 55,232,731 km (0.099 R)
• M29: 57,728,622 km (0.1 R)
• M30: 61,234,747 km (0.095 R)
• M31: 63,520,752 km (0.08 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 12,272 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit