🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.3

Radius: 11.2

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.51 AU - 0.67 AU

Year: 307 Days

Day: 13.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,472,193 km

• M1: 139,575 km (0.081 R)
• M2: 490,083 km (0.092 R)
• M3: 938,128 km (0.09 R)
• M4: 1,579,604 km (0.103 R)
• M5: 2,022,713 km (0.065 R)
• M6: 2,385,936 km (0.036 R)
• M7: 2,906,537 km (0.098 R)
• M8: 3,340,670 km (0.101 R)
• M9: 3,702,996 km (0.049 R)
• M10: 4,289,869 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.8

Radius: 14.5

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.75 AU - 1.11 AU

Year: 608 Days

Day: 7.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,472,193 km

• M1: 180,415 km (0.097 R)
• M2: 650,751 km (0.07 R)
• M3: 1,234,332 km (0.09 R)
• M4: 1,788,742 km (0.107 R)
• M5: 2,541,518 km (0.073 R)
• M6: 3,004,972 km (0.091 R)
• M7: 3,620,268 km (0.054 R)
• M8: 4,196,519 km (0.091 R)
• M9: 5,106,374 km (0.099 R)
• M10: 5,683,223 km (0.072 R)
• M11: 6,506,311 km (0.1 R)
• M12: 7,185,934 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81

Radius: 11.8

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.96 AU - 1 AU

Year: 658 Days

Day: 7.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,472,193 km

• M1: 146,905 km (0.088 R)
• M2: 575,353 km (0.113 R)
• M3: 992,133 km (0.048 R)
• M4: 1,363,585 km (0.117 R)
• M5: 1,843,495 km (0.112 R)
• M6: 2,395,660 km (0.076 R)
• M7: 2,981,186 km (0.047 R)
• M8: 3,429,980 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.9

Radius: 14.7

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.85 AU - 1.15 AU

Year: 678 Days

Day: 10.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,472,193 km

• M1: 183,108 km (0.114 R)
• M2: 986,299 km (0.119 R)
• M3: 1,804,001 km (0.094 R)
• M4: 2,374,417 km (0.066 R)
• M5: 3,084,858 km (0.109 R)
• M6: 4,139,074 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 12

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.24 AU - 1.84 AU

Year: 1296 Days

Day: 8.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 56,472,193 km

• M1: 151,991 km (0.117 R)
• M2: 973,733 km (0.118 R)
• M3: 1,469,799 km (0.111 R)
• M4: 2,096,165 km (0.094 R)
• M5: 3,007,366 km (0.087 R)
• M6: 4,071,306 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 11.3

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.4 AU - 1.68 AU

Year: 1296 Days

Day: 7.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,472,193 km

• M1: 140,772 km (0.046 R)
• M2: 555,158 km (0.041 R)
• M3: 1,183,768 km (0.106 R)
• M4: 1,802,206 km (0.032 R)
• M5: 2,639,804 km (0.077 R)
• M6: 3,393,927 km (0.089 R)
• M7: 3,856,484 km (0.085 R)
• M8: 4,629,456 km (0.068 R)
• M9: 4,991,034 km (0.101 R)
• M10: 6,049,139 km (0.107 R)
• M11: 6,507,208 km (0.12 R)
• M12: 7,411,827 km (0.056 R)
• M13: 8,999,957 km (0.111 R)
• M14: 9,374,700 km (0.063 R)
• M15: 9,923,425 km (0.105 R)
• M16: 12,033,354 km (0.067 R)
• M17: 13,515,120 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.7

Radius: 10

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.42 AU - 2.86 AU

Year: 2909 Days

Day: 10.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,472,193 km

• M1: 124,615 km (0.091 R)
• M2: 461,509 km (0.108 R)
• M3: 794,215 km (0.104 R)
• M4: 2,032,586 km (0.073 R)
• M5: 2,423,785 km (0.057 R)
• M6: 3,120,911 km (0.06 R)
• M7: 3,982,894 km (0.072 R)
• M8: 4,743,449 km (0.097 R)
• M9: 6,272,340 km (0.109 R)
• M10: 7,987,479 km (0.075 R)
• M11: 8,842,431 km (0.119 R)
• M12: 10,133,161 km (0.077 R)
• M13: 11,097,768 km (0.076 R)
• M14: 11,850,844 km (0.034 R)
• M15: 12,597,337 km (0.112 R)
• M16: 13,968,252 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.3

Radius: 13.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.32 AU - 5.88 AU

Year: 7812 Days

Day: 13.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,472,193 km

• M1: 171,589 km (0.11 R)
• M2: 736,620 km (0.106 R)
• M3: 1,627,326 km (0.12 R)
• M4: 2,184,428 km (0.11 R)
• M5: 2,614,522 km (0.094 R)
• M6: 3,194,962 km (0.091 R)
• M7: 4,285,381 km (0.058 R)
• M8: 4,942,863 km (0.026 R)
• M9: 5,390,610 km (0.084 R)
• M10: 6,646,633 km (0.085 R)
• M11: 8,638,978 km (0.093 R)
• M12: 9,410,753 km (0.116 R)
• M13: 11,315,284 km (0.109 R)
• M14: 14,824,999 km (0.11 R)
• M15: 16,738,805 km (0.055 R)
• M16: 18,372,264 km (0.082 R)
• M17: 19,977,300 km (0.062 R)
• M18: 21,052,460 km (0.114 R)
• M19: 22,095,157 km (0.101 R)
• M20: 23,318,269 km (0.095 R)
• M21: 23,834,830 km (0.053 R)
• M22: 25,586,023 km (0.098 R)
• M23: 27,339,908 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 757.6

Radius: 6.4

Gravity: 18.5 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 5.8 AU - 7.9 AU

Year: 12160 Days

Day: 19.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 56,472,193 km

• M1: 79,885 km (0.073 R)
• M2: 346,917 km (0.115 R)
• M3: 551,268 km (0.058 R)
• M4: 888,761 km (0.112 R)
• M5: 2,276,580 km (0.062 R)
• M6: 2,476,742 km (0.07 R)
• M7: 3,101,313 km (0.105 R)
• M8: 3,424,744 km (0.074 R)
• M9: 3,853,641 km (0.047 R)
• M10: 4,378,131 km (0.092 R)
• M11: 4,982,207 km (0.116 R)
• M12: 6,085,193 km (0.093 R)
• M13: 6,473,399 km (0.1 R)
• M14: 9,158,232 km (0.12 R)
• M15: 10,468,261 km (0.106 R)
• M16: 11,254,098 km (0.085 R)
• M17: 11,839,026 km (0.119 R)
• M18: 13,325,430 km (0.073 R)
• M19: 13,781,405 km (0.102 R)
• M20: 14,724,470 km (0.073 R)
• M21: 15,781,827 km (0.095 R)
• M22: 16,964,548 km (0.114 R)
• M23: 18,685,672 km (0.116 R)
• M24: 19,422,292 km (0.097 R)
• M25: 22,107,573 km (0.099 R)
• M26: 24,061,022 km (0.12 R)
• M27: 27,150,817 km (0.109 R)
• M28: 28,844,414 km (0.104 R)
• M29: 31,744,967 km (0.086 R)
• M30: 32,440,897 km (0.116 R)
• M31: 33,983,550 km (0.107 R)
• M32: 39,301,006 km (0.09 R)
• M33: 48,124,438 km (0.104 R)
• M34: 50,913,541 km (0.11 R)
• M35: 53,972,369 km (0.06 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 228 - 18,803 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit