🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.3

Radius: 12.1

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.69 AU - 0.79 AU

Year: 411 Days

Day: 11.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,366,978 km

• M1: 150,495 km (0.098 R)
• M2: 653,443 km (0.116 R)
• M3: 1,067,680 km (0.083 R)
• M4: 1,698,385 km (0.118 R)
• M5: 2,214,198 km (0.114 R)
• M6: 2,624,545 km (0.031 R)
• M7: 3,342,615 km (0.115 R)
• M8: 3,811,155 km (0.09 R)
• M9: 5,154,843 km (0.071 R)
• M10: 5,584,339 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609

Radius: 10.3

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.86 AU - 1.18 AU

Year: 665 Days

Day: 14.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,366,978 km

• M1: 128,056 km (0.08 R)
• M2: 582,983 km (0.09 R)
• M3: 976,724 km (0.025 R)
• M4: 2,123,991 km (0.119 R)
• M5: 2,477,191 km (0.12 R)
• M6: 2,835,628 km (0.117 R)
• M7: 5,389,562 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204

Radius: 13.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.91 AU - 1.19 AU

Year: 695 Days

Day: 6.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,366,978 km

• M1: 165,455 km (0.105 R)
• M2: 624,422 km (0.082 R)
• M3: 1,162,375 km (0.101 R)
• M4: 1,763,908 km (0.067 R)
• M5: 2,188,617 km (0.088 R)
• M6: 2,731,358 km (0.094 R)
• M7: 3,240,290 km (0.104 R)
• M8: 3,763,434 km (0.058 R)
• M9: 5,146,466 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.8

Radius: 13.1

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.21 AU - 1.57 AU

Year: 1058 Days

Day: 8.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,366,978 km

• M1: 165,006 km (0.058 R)
• M2: 771,476 km (0.051 R)
• M3: 1,437,935 km (0.07 R)
• M4: 2,709,367 km (0.111 R)
• M5: 3,324,065 km (0.117 R)
• M6: 4,131,295 km (0.113 R)
• M7: 5,015,269 km (0.098 R)
• M8: 6,097,310 km (0.103 R)
• M9: 7,137,614 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.7

Radius: 13

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.2 AU - 1.76 AU

Year: 1163 Days

Day: 15 Hours

Environment

Temp: -184 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,366,978 km

• M1: 161,715 km (0.114 R)
• M2: 958,474 km (0.082 R)
• M3: 1,402,031 km (0.1 R)
• M4: 1,855,014 km (0.114 R)
• M5: 2,704,730 km (0.111 R)
• M6: 3,321,970 km (0.104 R)
• M7: 3,906,748 km (0.104 R)
• M8: 4,628,708 km (0.081 R)
• M9: 5,555,467 km (0.084 R)
• M10: 6,940,593 km (0.101 R)
• M11: 7,677,363 km (0.109 R)
• M12: 9,618,993 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.5

Radius: 14.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.78 AU - 2.4 AU

Year: 1951 Days

Day: 9.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,366,978 km

• M1: 178,021 km (0.075 R)
• M2: 959,222 km (0.051 R)
• M3: 1,547,141 km (0.081 R)
• M4: 2,026,004 km (0.067 R)
• M5: 2,591,334 km (0.115 R)
• M6: 3,412,327 km (0.048 R)
• M7: 4,300,041 km (0.115 R)
• M8: 4,908,157 km (0.075 R)
• M9: 6,696,599 km (0.092 R)
• M10: 7,874,832 km (0.094 R)
• M11: 9,322,640 km (0.088 R)
• M12: 9,772,331 km (0.114 R)
• M13: 10,865,742 km (0.045 R)
• M14: 11,678,657 km (0.111 R)
• M15: 14,823,354 km (0.092 R)
• M16: 17,538,406 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267

Radius: 3.8

Gravity: 18.49 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 8.13 AU - 9.71 AU

Year: 17201 Days

Day: 22.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,366,978 km

• M1: 47,273 km (0.067 R)
• M2: 173,534 km (0.106 R)
• M3: 335,249 km (0.115 R)
• M4: 492,626 km (0.097 R)
• M5: 981,811 km (0.046 R)
• M6: 2,218,985 km (0.118 R)
• M7: 2,781,174 km (0.092 R)
• M8: 5,776,572 km (0.079 R)
• M9: 7,867,502 km (0.112 R)
• M10: 10,308,939 km (0.119 R)
• M11: 10,519,423 km (0.087 R)
• M12: 12,074,044 km (0.106 R)
• M13: 13,027,731 km (0.092 R)
• M14: 15,698,950 km (0.112 R)
• M15: 27,434,006 km (0.067 R)
• M16: 41,758,899 km (0.078 R)
• M17: 43,513,533 km (0.119 R)
• M18: 48,480,631 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.1

Radius: 5

Gravity: 14.56 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.26 AU - 11.42 AU

Year: 18430 Days

Day: 17.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 58,366,978 km

• M1: 65,673 km (0.065 R)
• M2: 239,955 km (0.079 R)
• M3: 564,433 km (0.1 R)
• M4: 762,351 km (0.108 R)
• M5: 1,006,345 km (0.113 R)
• M6: 1,222,663 km (0.091 R)
• M7: 2,045,302 km (0.116 R)
• M8: 2,333,577 km (0.094 R)
• M9: 2,827,998 km (0.104 R)
• M10: 3,547,414 km (0.088 R)
• M11: 5,626,974 km (0.106 R)
• M12: 7,219,892 km (0.112 R)
• M13: 9,345,529 km (0.106 R)
• M14: 10,746,513 km (0.117 R)
• M15: 11,675,067 km (0.04 R)
• M16: 12,220,351 km (0.033 R)
• M17: 13,361,483 km (0.109 R)
• M18: 17,676,784 km (0.105 R)
• M19: 17,914,046 km (0.098 R)
• M20: 18,233,736 km (0.066 R)
• M21: 19,049,793 km (0.1 R)
• M22: 20,232,663 km (0.085 R)
• M23: 22,372,960 km (0.11 R)
• M24: 22,743,663 km (0.039 R)
• M25: 25,859,189 km (0.043 R)
• M26: 28,590,995 km (0.076 R)
• M27: 30,138,735 km (0.119 R)
• M28: 33,520,694 km (0.101 R)
• M29: 49,266,169 km (0.112 R)
• M30: 52,456,793 km (0.117 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 13,898 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit