🌌 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: 299

Radius: 9.5

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.48 AU - 0.7 AU

Year: 313 Days

Day: 9.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,900,740 km

• M1: 118,182 km (0.062 R)
• M2: 419,622 km (0.107 R)
• M3: 891,304 km (0.116 R)
• M4: 1,410,558 km (0.088 R)
• M5: 1,787,844 km (0.072 R)
• M6: 2,247,409 km (0.068 R)
• M7: 2,732,106 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.6

Radius: 13.7

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.67 AU - 0.71 AU

Year: 396 Days

Day: 12.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 58,900,740 km

• M1: 170,542 km (0.112 R)
• M2: 627,114 km (0.089 R)
• M3: 1,140,385 km (0.074 R)
• M4: 1,772,585 km (0.092 R)
• M5: 2,677,802 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.1

Radius: 9.7

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.65 AU - 0.75 AU

Year: 404 Days

Day: 10.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 58,900,740 km

• M1: 120,725 km (0.12 R)
• M2: 508,034 km (0.064 R)
• M3: 1,075,758 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.3

Radius: 10.1

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.41 AU - 1.63 AU

Year: 1294 Days

Day: 6.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,900,740 km

• M1: 125,662 km (0.106 R)
• M2: 452,683 km (0.052 R)
• M3: 869,164 km (0.115 R)
• M4: 1,305,241 km (0.088 R)
• M5: 1,920,537 km (0.1 R)
• M6: 2,392,968 km (0.097 R)
• M7: 2,870,185 km (0.109 R)
• M8: 3,436,861 km (0.114 R)
• M9: 4,046,473 km (0.085 R)
• M10: 4,369,604 km (0.096 R)
• M11: 5,050,873 km (0.095 R)
• M12: 5,499,966 km (0.113 R)
• M13: 6,294,181 km (0.061 R)
• M14: 6,900,950 km (0.096 R)
• M15: 7,777,743 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.3

Radius: 10.9

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.82 AU - 3 AU

Year: 2582 Days

Day: 12.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 58,900,740 km

• M1: 135,536 km (0.099 R)
• M2: 747,241 km (0.112 R)
• M3: 1,179,729 km (0.102 R)
• M4: 1,867,281 km (0.113 R)
• M5: 2,341,655 km (0.094 R)
• M6: 3,431,027 km (0.102 R)
• M7: 3,955,218 km (0.078 R)
• M8: 5,006,891 km (0.102 R)
• M9: 6,106,884 km (0.109 R)
• M10: 7,805,269 km (0.093 R)
• M11: 8,393,488 km (0.11 R)
• M12: 8,747,287 km (0.09 R)
• M13: 9,144,768 km (0.061 R)
• M14: 11,908,439 km (0.118 R)
• M15: 13,502,255 km (0.057 R)
• M16: 14,259,519 km (0.093 R)
• M17: 15,281,273 km (0.067 R)
• M18: 17,366,518 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.6

Radius: 13.5

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 4.73 AU - 4.83 AU

Year: 7214 Days

Day: 13.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 58,900,740 km

• M1: 169,195 km (0.114 R)
• M2: 1,007,542 km (0.088 R)
• M3: 1,655,899 km (0.079 R)
• M4: 2,122,794 km (0.096 R)
• M5: 2,643,245 km (0.059 R)
• M6: 3,330,497 km (0.096 R)
• M7: 4,480,755 km (0.098 R)
• M8: 5,880,692 km (0.051 R)
• M9: 6,953,309 km (0.114 R)
• M10: 7,775,200 km (0.085 R)
• M11: 9,485,103 km (0.111 R)
• M12: 16,600,577 km (0.119 R)
• M13: 18,332,471 km (0.098 R)
• M14: 20,040,729 km (0.054 R)
• M15: 21,115,291 km (0.113 R)
• M16: 25,800,995 km (0.108 R)
• M17: 26,304,691 km (0.109 R)
• M18: 29,557,248 km (0.064 R)
• M19: 31,422,734 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.7

Radius: 3.5

Gravity: 77.04 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.58 AU - 10.12 AU

Year: 18173 Days

Day: 17.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 58,900,740 km

• M1: 43,832 km (0.078 R)
• M2: 191,186 km (0.082 R)
• M3: 678,576 km (0.089 R)
• M4: 810,671 km (0.104 R)
• M5: 1,009,337 km (0.091 R)
• M6: 1,127,220 km (0.104 R)
• M7: 1,487,601 km (0.096 R)
• M8: 1,676,543 km (0.08 R)
• M9: 1,900,641 km (0.12 R)
• M10: 2,230,055 km (0.051 R)
• M11: 2,974,754 km (0.092 R)
• M12: 3,447,034 km (0.089 R)
• M13: 3,594,986 km (0.096 R)
• M14: 4,031,962 km (0.109 R)
• M15: 4,468,638 km (0.046 R)
• M16: 5,200,620 km (0.089 R)
• M17: 5,758,471 km (0.037 R)
• M18: 5,882,936 km (0.092 R)
• M19: 6,137,402 km (0.109 R)
• M20: 10,267,051 km (0.081 R)
• M21: 11,996,104 km (0.092 R)
• M22: 12,405,104 km (0.079 R)
• M23: 12,613,045 km (0.113 R)
• M24: 18,150,710 km (0.101 R)
• M25: 19,610,785 km (0.059 R)
• M26: 20,177,910 km (0.079 R)
• M27: 20,369,396 km (0.057 R)
• M28: 22,658,991 km (0.063 R)
• M29: 27,505,962 km (0.117 R)
• M30: 30,044,937 km (0.118 R)
• M31: 30,545,641 km (0.093 R)
• M32: 31,179,338 km (0.105 R)
• M33: 39,331,225 km (0.104 R)
• M34: 40,993,257 km (0.041 R)
• M35: 45,762,587 km (0.11 R)
• M36: 48,280,170 km (0.111 R)
• M37: 50,008,923 km (0.069 R)
• M38: 54,510,472 km (0.101 R)
• M39: 56,384,185 km (0.09 R)
• M40: 57,336,974 km (0.037 R)
• M41: 67,035,554 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.1

Radius: 6

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.86 AU - 11.96 AU

Year: 21534 Days

Day: 21.6 Hours

Environment

Temp: -242 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,900,740 km

• M1: 74,649 km (0.096 R)
• M2: 334,052 km (0.079 R)
• M3: 718,219 km (0.065 R)
• M4: 1,206,956 km (0.055 R)
• M5: 1,827,039 km (0.042 R)
• M6: 2,131,470 km (0.109 R)
• M7: 2,796,433 km (0.078 R)
• M8: 3,867,853 km (0.06 R)
• M9: 4,309,615 km (0.108 R)
• M10: 8,882,074 km (0.062 R)
• M11: 9,337,600 km (0.105 R)
• M12: 10,022,908 km (0.12 R)
• M13: 10,460,930 km (0.113 R)
• M14: 10,684,579 km (0.117 R)
• M15: 11,026,261 km (0.071 R)
• M16: 12,717,614 km (0.053 R)
• M17: 12,972,679 km (0.109 R)
• M18: 13,824,938 km (0.098 R)
• M19: 17,218,565 km (0.106 R)
• M20: 19,315,628 km (0.115 R)
• M21: 42,673,541 km (0.106 R)
• M22: 44,844,206 km (0.08 R)
• M23: 54,598,136 km (0.057 R)
• M24: 55,610,914 km (0.112 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 196 - 15,813 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit