🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.2

Radius: 10

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.72 AU - 0.72 AU

Year: 388 Days

Day: 8.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,665,920 km

• M1: 126,261 km (0.11 R)
• M2: 534,214 km (0.109 R)
• M3: 980,464 km (0.065 R)
• M4: 1,291,478 km (0.057 R)
• M5: 1,698,385 km (0.081 R)
• M6: 2,765,167 km (0.12 R)
• M7: 3,825,966 km (0.087 R)
• M8: 4,311,111 km (0.11 R)
• M9: 4,748,685 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.5

Radius: 13.6

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.79 AU - 1.03 AU

Year: 552 Days

Day: 13.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 31,665,920 km

• M1: 169,195 km (0.084 R)
• M2: 597,943 km (0.101 R)
• M3: 1,068,129 km (0.078 R)
• M4: 1,513,781 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.3

Radius: 9.2

Gravity: 9.14 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.87 AU - 3.83 AU

Year: 3899 Days

Day: 8.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,665,920 km

• M1: 114,442 km (0.111 R)
• M2: 642,224 km (0.057 R)
• M3: 1,184,666 km (0.082 R)
• M4: 1,490,743 km (0.091 R)
• M5: 2,267,455 km (0.119 R)
• M6: 2,729,712 km (0.083 R)
• M7: 3,029,058 km (0.105 R)
• M8: 3,409,635 km (0.1 R)
• M9: 3,974,067 km (0.077 R)
• M10: 4,431,239 km (0.091 R)
• M11: 5,369,666 km (0.068 R)
• M12: 7,738,997 km (0.118 R)
• M13: 8,126,605 km (0.085 R)
• M14: 9,446,956 km (0.065 R)
• M15: 9,808,384 km (0.112 R)
• M16: 10,904,787 km (0.074 R)
• M17: 14,365,734 km (0.038 R)
• M18: 19,706,827 km (0.106 R)
• M19: 20,231,616 km (0.086 R)
• M20: 24,619,770 km (0.065 R)
• M21: 26,081,940 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.5

Radius: 10.3

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 4.08 AU - 6.1 AU

Year: 7301 Days

Day: 11.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,665,920 km

• M1: 128,654 km (0.088 R)
• M2: 576,251 km (0.117 R)
• M3: 1,244,355 km (0.119 R)
• M4: 1,567,786 km (0.114 R)
• M5: 2,009,997 km (0.077 R)
• M6: 2,479,884 km (0.108 R)
• M7: 3,277,989 km (0.084 R)
• M8: 4,588,915 km (0.116 R)
• M9: 5,692,049 km (0.044 R)
• M10: 6,186,620 km (0.114 R)
• M11: 6,638,256 km (0.082 R)
• M12: 8,970,786 km (0.113 R)
• M13: 12,174,275 km (0.074 R)
• M14: 13,972,890 km (0.057 R)
• M15: 15,942,047 km (0.088 R)
• M16: 18,300,457 km (0.047 R)
• M17: 21,583,532 km (0.059 R)
• M18: 22,381,038 km (0.087 R)
• M19: 25,503,595 km (0.081 R)
• M20: 36,593,883 km (0.067 R)
• M21: 37,271,262 km (0.043 R)
• M22: 38,651,153 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.8

Radius: 14

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 5.86 AU - 5.9 AU

Year: 9066 Days

Day: 12.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,665,920 km

• M1: 183,257 km (0.119 R)
• M2: 1,408,763 km (0.092 R)
• M3: 2,518,779 km (0.08 R)
• M4: 3,897,473 km (0.1 R)
• M5: 5,056,857 km (0.062 R)
• M6: 5,557,710 km (0.115 R)
• M7: 7,297,983 km (0.118 R)
• M8: 8,657,977 km (0.103 R)
• M9: 9,879,892 km (0.071 R)
• M10: 12,715,071 km (0.079 R)
• M11: 13,699,275 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 141.1

Radius: 6.1

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.39 AU - 9.67 AU

Year: 18706 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,665,920 km

• M1: 85,570 km (0.049 R)
• M2: 370,105 km (0.057 R)
• M3: 604,675 km (0.119 R)
• M4: 5,122,979 km (0.026 R)
• M5: 11,694,963 km (0.095 R)
• M6: 12,297,693 km (0.096 R)
• M7: 12,749,030 km (0.067 R)
• M8: 15,108,188 km (0.106 R)
• M9: 15,495,347 km (0.066 R)
• M10: 17,110,107 km (0.089 R)
• M11: 25,412,340 km (0.071 R)
• M12: 35,936,101 km (0.056 R)
• M13: 39,472,445 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.2

Radius: 7.1

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 8.36 AU - 11 AU

Year: 19149 Days

Day: 23.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,665,920 km

• M1: 88,562 km (0.108 R)
• M2: 596,148 km (0.097 R)
• M3: 2,731,807 km (0.098 R)
• M4: 4,331,606 km (0.113 R)
• M5: 7,526,568 km (0.091 R)
• M6: 7,750,067 km (0.062 R)
• M7: 8,543,684 km (0.096 R)
• M8: 12,326,715 km (0.078 R)
• M9: 13,275,913 km (0.1 R)
• M10: 15,176,554 km (0.069 R)
• M11: 16,415,075 km (0.12 R)
• M12: 18,116,153 km (0.098 R)
• M13: 20,016,644 km (0.12 R)
• M14: 22,504,905 km (0.073 R)
• M15: 25,292,063 km (0.093 R)
• M16: 28,625,253 km (0.096 R)
• M17: 29,613,048 km (0.099 R)
• M18: 30,736,977 km (0.104 R)
• M19: 38,347,320 km (0.087 R)
• M20: 40,771,553 km (0.051 R)
• M21: 43,439,183 km (0.066 R)
• M22: 47,579,304 km (0.095 R)
• M23: 48,499,480 km (0.09 R)
• M24: 50,217,163 km (0.033 R)
• M25: 52,461,430 km (0.026 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.7

Radius: 4.6

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 8.02 AU - 12.14 AU

Year: 20348 Days

Day: 18.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 31,665,920 km

• M1: 57,146 km (0.105 R)
• M2: 325,525 km (0.096 R)
• M3: 533,466 km (0.03 R)
• M4: 2,126,085 km (0.069 R)
• M5: 3,961,052 km (0.069 R)
• M6: 8,304,477 km (0.055 R)
• M7: 10,992,152 km (0.076 R)
• M8: 18,993,245 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: 394 - 14,910 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit