🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.7

Radius: 10.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.5 AU - 0.58 AU

Year: 269 Days

Day: 11.7 Hours

Environment

Temp: -135 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 43,677,935 km

• M1: 134,339 km (0.11 R)
• M2: 586,872 km (0.098 R)
• M3: 1,410,409 km (0.032 R)
• M4: 1,921,136 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.8

Radius: 13.1

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.52 AU - 0.62 AU

Year: 292 Days

Day: 9.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 43,677,935 km

• M1: 162,912 km (0.117 R)
• M2: 728,242 km (0.116 R)
• M3: 1,275,023 km (0.114 R)
• M4: 1,682,976 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.5

Radius: 13.6

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.93 AU - 1.01 AU

Year: 648 Days

Day: 6.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,677,935 km

• M1: 169,195 km (0.107 R)
• M2: 653,593 km (0.057 R)
• M3: 1,108,520 km (0.079 R)
• M4: 1,850,675 km (0.102 R)
• M5: 2,395,959 km (0.095 R)
• M6: 2,925,237 km (0.118 R)
• M7: 3,490,118 km (0.107 R)
• M8: 4,033,308 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.4

Radius: 11.5

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.99 AU - 1.23 AU

Year: 793 Days

Day: 5.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,677,935 km

• M1: 143,016 km (0.102 R)
• M2: 512,971 km (0.117 R)
• M3: 1,030,729 km (0.117 R)
• M4: 1,425,668 km (0.109 R)
• M5: 1,806,693 km (0.105 R)
• M6: 3,114,927 km (0.08 R)
• M7: 3,553,697 km (0.085 R)
• M8: 5,024,244 km (0.099 R)
• M9: 6,928,326 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.9

Radius: 5.9

Gravity: 13.84 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 5.7 AU - 9.2 AU

Year: 13792 Days

Day: 18.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,677,935 km

• M1: 73,453 km (0.066 R)
• M2: 314,604 km (0.115 R)
• M3: 1,497,624 km (0.108 R)
• M4: 3,178,356 km (0.091 R)
• M5: 3,373,881 km (0.072 R)
• M6: 3,735,459 km (0.077 R)
• M7: 4,355,542 km (0.042 R)
• M8: 5,584,788 km (0.118 R)
• M9: 7,070,444 km (0.058 R)
• M10: 8,518,402 km (0.116 R)
• M11: 10,153,656 km (0.103 R)
• M12: 11,754,054 km (0.092 R)
• M13: 13,579,298 km (0.072 R)
• M14: 14,760,672 km (0.112 R)
• M15: 36,635,621 km (0.099 R)
• M16: 37,384,209 km (0.025 R)
• M17: 37,762,392 km (0.039 R)
• M18: 42,913,196 km (0.106 R)
• M19: 52,033,730 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.8

Radius: 7.8

Gravity: 15.23 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.31 AU - 9.19 AU

Year: 14633 Days

Day: 21.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 43,677,935 km

• M1: 97,987 km (0.071 R)
• M2: 346,169 km (0.089 R)
• M3: 803,939 km (0.112 R)
• M4: 1,470,098 km (0.081 R)
• M5: 1,884,634 km (0.068 R)
• M6: 2,375,165 km (0.094 R)
• M7: 3,022,625 km (0.089 R)
• M8: 3,525,423 km (0.096 R)
• M9: 4,238,856 km (0.111 R)
• M10: 4,563,034 km (0.112 R)
• M11: 5,713,741 km (0.12 R)
• M12: 6,652,468 km (0.061 R)
• M13: 8,075,742 km (0.093 R)
• M14: 10,255,682 km (0.033 R)
• M15: 18,321,999 km (0.053 R)
• M16: 20,619,673 km (0.041 R)
• M17: 23,102,848 km (0.099 R)
• M18: 24,108,744 km (0.096 R)
• M19: 29,697,421 km (0.029 R)
• M20: 36,494,700 km (0.094 R)
• M21: 47,234,630 km (0.115 R)
• M22: 49,840,775 km (0.082 R)
• M23: 50,339,833 km (0.072 R)
• M24: 51,687,112 km (0.103 R)
• M25: 52,027,596 km (0.05 R)
• M26: 54,453,326 km (0.114 R)
• M27: 58,048,013 km (0.078 R)
• M28: 66,707,935 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 607.3

Radius: 8

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.44 AU - 9.04 AU

Year: 16043 Days

Day: 17.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 43,677,935 km

• M1: 99,632 km (0.109 R)
• M2: 485,595 km (0.075 R)
• M3: 770,429 km (0.056 R)
• M4: 1,048,980 km (0.04 R)
• M5: 1,482,515 km (0.085 R)
• M6: 1,733,540 km (0.112 R)
• M7: 2,125,636 km (0.103 R)
• M8: 2,709,217 km (0.049 R)
• M9: 3,138,115 km (0.092 R)
• M10: 3,422,051 km (0.073 R)
• M11: 3,694,918 km (0.104 R)
• M12: 5,577,009 km (0.081 R)
• M13: 5,995,284 km (0.098 R)
• M14: 6,434,354 km (0.116 R)
• M15: 9,164,515 km (0.101 R)
• M16: 9,532,676 km (0.101 R)
• M17: 9,910,709 km (0.076 R)
• M18: 12,842,977 km (0.062 R)
• M19: 16,693,327 km (0.094 R)
• M20: 17,885,772 km (0.028 R)
• M21: 19,997,795 km (0.074 R)
• M22: 23,032,836 km (0.118 R)
• M23: 23,518,132 km (0.081 R)
• M24: 25,942,365 km (0.087 R)
• M25: 27,214,845 km (0.067 R)
• M26: 28,417,312 km (0.049 R)
• M27: 30,113,752 km (0.075 R)
• M28: 33,831,409 km (0.108 R)
• M29: 34,965,510 km (0.111 R)
• M30: 39,341,098 km (0.082 R)
• M31: 46,490,829 km (0.117 R)
• M32: 48,207,016 km (0.114 R)
• M33: 52,597,415 km (0.116 R)
• M34: 54,460,207 km (0.069 R)
• M35: 55,148,208 km (0.074 R)
• M36: 57,070,391 km (0.113 R)
• M37: 59,763,003 km (0.068 R)
• M38: 62,915,479 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.2

Radius: 3.9

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 8.19 AU - 13.27 AU

Year: 23839 Days

Day: 15.5 Hours

Environment

Temp: -246 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,677,935 km

• M1: 48,470 km (0.116 R)
• M2: 181,462 km (0.081 R)
• M3: 307,274 km (0.03 R)
• M4: 435,479 km (0.059 R)
• M5: 755,020 km (0.114 R)
• M6: 955,930 km (0.116 R)
• M7: 1,203,066 km (0.118 R)
• M8: 1,616,405 km (0.1 R)
• M9: 1,903,184 km (0.039 R)
• M10: 2,258,479 km (0.079 R)
• M11: 7,267,764 km (0.04 R)
• M12: 7,792,852 km (0.071 R)
• M13: 9,951,550 km (0.099 R)
• M14: 11,325,606 km (0.115 R)
• M15: 14,010,439 km (0.053 R)
• M16: 14,318,910 km (0.048 R)
• M17: 18,016,371 km (0.086 R)
• M18: 21,887,964 km (0.119 R)
• M19: 22,219,622 km (0.103 R)
• M20: 22,808,290 km (0.06 R)
• M21: 23,666,982 km (0.084 R)
• M22: 25,266,781 km (0.09 R)
• M23: 27,318,067 km (0.088 R)
• M24: 30,805,942 km (0.091 R)
• M25: 31,118,003 km (0.091 R)
• M26: 31,960,538 km (0.103 R)
• M27: 36,750,961 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 500 - 18,484 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit