🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.3

Radius: 14.5

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.76 AU - 0.84 AU

Year: 485 Days

Day: 13.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,571,682 km

• M1: 180,265 km (0.043 R)
• M2: 947,553 km (0.089 R)
• M3: 1,631,963 km (0.08 R)
• M4: 2,506,662 km (0.116 R)
• M5: 3,007,366 km (0.117 R)
• M6: 4,242,596 km (0.091 R)
• M7: 5,071,817 km (0.084 R)
• M8: 6,207,115 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.2

Radius: 8.2

Gravity: 13.33 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.8 AU - 0.88 AU

Year: 522 Days

Day: 8.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,571,682 km

• M1: 102,026 km (0.096 R)
• M2: 363,822 km (0.117 R)
• M3: 640,877 km (0.056 R)
• M4: 930,948 km (0.103 R)
• M5: 1,370,316 km (0.109 R)
• M6: 1,677,591 km (0.082 R)
• M7: 2,168,870 km (0.062 R)
• M8: 2,697,698 km (0.106 R)
• M9: 3,635,677 km (0.116 R)
• M10: 4,727,742 km (0.12 R)
• M11: 5,040,401 km (0.093 R)
• M12: 5,799,311 km (0.12 R)
• M13: 7,024,817 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.3

Radius: 8.3

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.81 AU - 0.99 AU

Year: 579 Days

Day: 6.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,571,682 km

• M1: 103,223 km (0.113 R)
• M2: 393,143 km (0.117 R)
• M3: 813,513 km (0.096 R)
• M4: 1,162,226 km (0.078 R)
• M5: 1,512,734 km (0.101 R)
• M6: 1,966,614 km (0.112 R)
• M7: 2,414,360 km (0.084 R)
• M8: 2,841,013 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.3

Radius: 14.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.03 AU - 3.85 AU

Year: 4327 Days

Day: 9.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 64,571,682 km

• M1: 178,470 km (0.069 R)
• M2: 723,455 km (0.056 R)
• M3: 1,677,441 km (0.079 R)
• M4: 2,201,183 km (0.109 R)
• M5: 4,788,329 km (0.095 R)
• M6: 7,186,532 km (0.096 R)
• M7: 7,832,496 km (0.088 R)
• M8: 9,398,935 km (0.091 R)
• M9: 10,298,617 km (0.111 R)
• M10: 12,605,266 km (0.092 R)
• M11: 15,794,394 km (0.119 R)
• M12: 16,306,766 km (0.091 R)
• M13: 17,605,874 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.5

Radius: 12.4

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.32 AU - 4.66 AU

Year: 6453 Days

Day: 7.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,571,682 km

• M1: 154,235 km (0.096 R)
• M2: 542,292 km (0.044 R)
• M3: 991,535 km (0.073 R)
• M4: 1,657,993 km (0.096 R)
• M5: 2,794,488 km (0.083 R)
• M6: 3,344,111 km (0.12 R)
• M7: 4,014,160 km (0.067 R)
• M8: 5,971,199 km (0.063 R)
• M9: 9,702,619 km (0.104 R)
• M10: 12,502,044 km (0.1 R)
• M11: 13,600,690 km (0.055 R)
• M12: 14,525,056 km (0.11 R)
• M13: 15,429,225 km (0.04 R)
• M14: 18,576,166 km (0.082 R)
• M15: 21,971,439 km (0.049 R)
• M16: 27,084,545 km (0.089 R)
• M17: 27,626,837 km (0.09 R)
• M18: 29,391,643 km (0.091 R)
• M19: 34,078,694 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 878.1

Radius: 4.4

Gravity: 45.36 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.9 AU - 7.64 AU

Year: 10649 Days

Day: 23.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 64,571,682 km

• M1: 55,052 km (0.032 R)
• M2: 365,767 km (0.107 R)
• M3: 578,944 km (0.101 R)
• M4: 892,202 km (0.095 R)
• M5: 1,158,336 km (0.114 R)
• M6: 1,782,608 km (0.09 R)
• M7: 2,057,719 km (0.1 R)
• M8: 2,757,986 km (0.094 R)
• M9: 3,007,665 km (0.11 R)
• M10: 3,448,680 km (0.032 R)
• M11: 3,793,204 km (0.109 R)
• M12: 5,097,099 km (0.095 R)
• M13: 5,508,493 km (0.089 R)
• M14: 6,957,797 km (0.096 R)
• M15: 7,123,851 km (0.105 R)
• M16: 7,993,912 km (0.065 R)
• M17: 8,883,870 km (0.055 R)
• M18: 9,942,274 km (0.103 R)
• M19: 12,427,394 km (0.114 R)
• M20: 13,943,419 km (0.114 R)
• M21: 14,207,609 km (0.087 R)
• M22: 14,610,027 km (0.051 R)
• M23: 18,580,355 km (0.093 R)
• M24: 20,300,730 km (0.094 R)
• M25: 20,725,439 km (0.035 R)
• M26: 25,795,759 km (0.096 R)
• M27: 26,798,514 km (0.078 R)
• M28: 27,931,269 km (0.072 R)
• M29: 29,853,153 km (0.072 R)
• M30: 30,846,333 km (0.08 R)
• M31: 31,861,355 km (0.036 R)
• M32: 34,315,956 km (0.097 R)
• M33: 34,556,211 km (0.087 R)
• M34: 37,780,942 km (0.057 R)
• M35: 40,795,938 km (0.052 R)
• M36: 42,292,964 km (0.096 R)
• M37: 47,003,053 km (0.039 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 826

Radius: 5.8

Gravity: 24.55 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.94 AU - 8.28 AU

Year: 14239 Days

Day: 16.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,571,682 km

• M1: 74,051 km (0.117 R)
• M2: 963,709 km (0.078 R)
• M3: 1,205,759 km (0.053 R)
• M4: 2,674,960 km (0.118 R)
• M5: 4,919,376 km (0.062 R)
• M6: 8,678,472 km (0.078 R)
• M7: 11,829,452 km (0.081 R)
• M8: 18,699,883 km (0.101 R)
• M9: 19,211,807 km (0.078 R)
• M10: 21,631,403 km (0.073 R)
• M11: 25,578,244 km (0.118 R)
• M12: 26,528,041 km (0.104 R)
• M13: 29,403,761 km (0.062 R)
• M14: 35,635,110 km (0.095 R)
• M15: 38,575,008 km (0.088 R)
• M16: 41,672,581 km (0.037 R)
• M17: 46,003,739 km (0.111 R)
• M18: 47,406,518 km (0.106 R)
• M19: 60,778,623 km (0.087 R)
• M20: 61,712,562 km (0.114 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 10,248 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit