🌌 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: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.3

Radius: 9.4

Gravity: 9.92 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.55 AU - 0.87 AU

Year: 386 Days

Day: 6.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,940,710 km

• M1: 116,836 km (0.085 R)
• M2: 414,536 km (0.08 R)
• M3: 722,109 km (0.106 R)
• M4: 1,014,573 km (0.037 R)
• M5: 1,433,447 km (0.095 R)
• M6: 1,893,759 km (0.083 R)
• M7: 2,283,462 km (0.058 R)
• M8: 2,605,696 km (0.089 R)
• M9: 3,180,451 km (0.082 R)
• M10: 4,075,794 km (0.096 R)
• M11: 4,805,532 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.4

Radius: 14.7

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.82 AU - 0.84 AU

Year: 488 Days

Day: 6.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 78,940,710 km

• M1: 182,809 km (0.112 R)
• M2: 967,898 km (0.095 R)
• M3: 1,683,425 km (0.097 R)
• M4: 3,032,050 km (0.12 R)
• M5: 3,896,277 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198

Radius: 10.6

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.65 AU - 1.05 AU

Year: 506 Days

Day: 13.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,940,710 km

• M1: 132,245 km (0.083 R)
• M2: 608,415 km (0.113 R)
• M3: 1,536,969 km (0.094 R)
• M4: 2,204,474 km (0.06 R)
• M5: 2,759,333 km (0.091 R)
• M6: 3,216,953 km (0.051 R)
• M7: 3,656,920 km (0.075 R)
• M8: 4,335,645 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.6

Radius: 9

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.41 AU - 2.09 AU

Year: 1495 Days

Day: 5.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,940,710 km

• M1: 112,946 km (0.103 R)
• M2: 502,350 km (0.085 R)
• M3: 886,667 km (0.032 R)
• M4: 1,305,391 km (0.078 R)
• M5: 1,742,965 km (0.113 R)
• M6: 2,420,194 km (0.075 R)
• M7: 4,074,597 km (0.098 R)
• M8: 5,358,745 km (0.076 R)
• M9: 6,244,066 km (0.114 R)
• M10: 6,597,416 km (0.111 R)
• M11: 7,010,755 km (0.088 R)
• M12: 7,638,318 km (0.028 R)
• M13: 10,132,563 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140

Radius: 9.6

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.56 AU - 4.22 AU

Year: 4030 Days

Day: 5.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,940,710 km

• M1: 119,379 km (0.081 R)
• M2: 523,892 km (0.118 R)
• M3: 1,343,239 km (0.076 R)
• M4: 1,686,118 km (0.029 R)
• M5: 2,446,972 km (0.067 R)
• M6: 3,010,208 km (0.117 R)
• M7: 3,339,174 km (0.086 R)
• M8: 3,762,386 km (0.064 R)
• M9: 5,521,209 km (0.113 R)
• M10: 5,848,379 km (0.095 R)
• M11: 6,338,611 km (0.099 R)
• M12: 7,016,439 km (0.107 R)
• M13: 7,627,098 km (0.101 R)
• M14: 9,774,126 km (0.099 R)
• M15: 10,895,063 km (0.072 R)
• M16: 13,018,904 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 13

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.63 AU - 5.27 AU

Year: 7111 Days

Day: 12.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,940,710 km

• M1: 163,062 km (0.057 R)
• M2: 1,538,315 km (0.111 R)
• M3: 2,604,349 km (0.117 R)
• M4: 3,982,295 km (0.112 R)
• M5: 5,307,732 km (0.059 R)
• M6: 5,885,180 km (0.092 R)
• M7: 7,036,785 km (0.087 R)
• M8: 9,623,481 km (0.098 R)
• M9: 13,129,906 km (0.111 R)
• M10: 17,292,018 km (0.116 R)
• M11: 18,317,212 km (0.106 R)
• M12: 19,128,182 km (0.045 R)
• M13: 19,574,582 km (0.063 R)
• M14: 22,121,187 km (0.112 R)
• M15: 23,839,019 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692.7

Radius: 3.5

Gravity: 56.55 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.08 AU - 7.14 AU

Year: 10973 Days

Day: 15 Hours

Environment

Temp: -217 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,940,710 km

• M1: 43,683 km (0.048 R)
• M2: 166,502 km (0.092 R)
• M3: 281,693 km (0.097 R)
• M4: 544,686 km (0.063 R)
• M5: 804,837 km (0.105 R)
• M6: 1,190,350 km (0.097 R)
• M7: 1,898,098 km (0.076 R)
• M8: 2,370,378 km (0.081 R)
• M9: 2,697,399 km (0.109 R)
• M10: 2,916,710 km (0.092 R)
• M11: 5,053,865 km (0.102 R)
• M12: 6,359,555 km (0.093 R)
• M13: 8,691,935 km (0.068 R)
• M14: 15,982,139 km (0.096 R)
• M15: 18,347,132 km (0.107 R)
• M16: 20,850,802 km (0.042 R)
• M17: 23,481,630 km (0.109 R)
• M18: 33,027,470 km (0.068 R)
• M19: 34,420,974 km (0.065 R)
• M20: 40,387,236 km (0.11 R)
• M21: 40,913,522 km (0.1 R)
• M22: 43,751,393 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.1

Radius: 5.5

Gravity: 17 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 10.73 AU - 11.79 AU

Year: 24396 Days

Day: 19.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,940,710 km

• M1: 68,665 km (0.096 R)
• M2: 294,259 km (0.082 R)
• M3: 708,944 km (0.054 R)
• M4: 1,092,064 km (0.071 R)
• M5: 1,519,615 km (0.116 R)
• M6: 2,851,635 km (0.053 R)
• M7: 3,033,695 km (0.073 R)
• M8: 3,597,081 km (0.11 R)
• M9: 4,362,274 km (0.096 R)
• M10: 5,746,503 km (0.102 R)
• M11: 6,560,615 km (0.069 R)
• M12: 8,101,323 km (0.114 R)
• M13: 10,347,386 km (0.084 R)
• M14: 15,939,952 km (0.108 R)
• M15: 16,349,551 km (0.105 R)
• M16: 16,935,077 km (0.043 R)
• M17: 20,359,073 km (0.113 R)
• M18: 24,110,390 km (0.082 R)
• M19: 25,087,862 km (0.079 R)
• M20: 30,124,972 km (0.111 R)
• M21: 31,258,176 km (0.105 R)
• M22: 35,103,140 km (0.058 R)
• M23: 36,216,747 km (0.106 R)
• M24: 42,922,771 km (0.094 R)
• M25: 45,003,827 km (0.05 R)
• M26: 51,827,135 km (0.087 R)
• M27: 52,906,633 km (0.095 R)
• M28: 59,700,471 km (0.075 R)
• M29: 64,745,659 km (0.089 R)
• M30: 77,296,023 km (0.088 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 19,065 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit