🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.44 AU - 0.58 AU

Year: 232 Days

Day: 45.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 28.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 929

Radius: 8.4

Gravity: 13.17 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.69 AU - 0.97 AU

Year: 481 Days

Day: 10 Hours

Environment

Temp: -147 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,067,510 km

• M1: 104,419 km (0.081 R)
• M2: 463,155 km (0.109 R)
• M3: 849,866 km (0.076 R)
• M4: 1,377,497 km (0.109 R)
• M5: 1,657,694 km (0.083 R)
• M6: 2,019,870 km (0.079 R)
• M7: 2,404,487 km (0.046 R)
• M8: 2,716,249 km (0.049 R)
• M9: 3,498,795 km (0.079 R)
• M10: 3,970,926 km (0.073 R)
• M11: 5,398,538 km (0.086 R)
• M12: 6,830,340 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.1

Radius: 12.1

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.54 AU - 2.58 AU

Year: 2604 Days

Day: 9.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 59,067,510 km

• M1: 150,495 km (0.11 R)
• M2: 578,196 km (0.113 R)
• M3: 1,013,675 km (0.11 R)
• M4: 1,730,099 km (0.118 R)
• M5: 2,793,740 km (0.118 R)
• M6: 3,209,473 km (0.115 R)
• M7: 3,628,496 km (0.103 R)
• M8: 4,146,554 km (0.108 R)
• M9: 5,481,864 km (0.053 R)
• M10: 5,976,435 km (0.117 R)
• M11: 7,996,006 km (0.071 R)
• M12: 8,772,120 km (0.119 R)
• M13: 11,996,253 km (0.113 R)
• M14: 14,377,253 km (0.098 R)
• M15: 15,169,374 km (0.119 R)
• M16: 18,515,728 km (0.059 R)
• M17: 19,098,113 km (0.12 R)
• M18: 19,692,615 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.2

Radius: 14.6

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.16 AU - 4.82 AU

Year: 5067 Days

Day: 5.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,067,510 km

• M1: 181,612 km (0.052 R)
• M2: 640,578 km (0.062 R)
• M3: 1,942,828 km (0.099 R)
• M4: 3,099,219 km (0.095 R)
• M5: 4,323,528 km (0.117 R)
• M6: 6,219,531 km (0.076 R)
• M7: 7,602,863 km (0.054 R)
• M8: 10,072,275 km (0.076 R)
• M9: 11,252,602 km (0.06 R)
• M10: 12,472,573 km (0.058 R)
• M11: 16,176,915 km (0.106 R)
• M12: 17,222,455 km (0.109 R)
• M13: 19,516,538 km (0.112 R)
• M14: 24,385,351 km (0.083 R)
• M15: 26,591,919 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.7

Radius: 14.4

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 4.23 AU - 6.17 AU

Year: 7539 Days

Day: 11.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,067,510 km

• M1: 183,108 km (0.089 R)
• M2: 714,479 km (0.117 R)
• M3: 1,266,346 km (0.077 R)
• M4: 2,000,722 km (0.116 R)
• M5: 2,537,629 km (0.027 R)
• M6: 6,685,678 km (0.109 R)
• M7: 7,332,390 km (0.067 R)
• M8: 8,835,250 km (0.062 R)
• M9: 10,299,813 km (0.102 R)
• M10: 10,774,039 km (0.111 R)
• M11: 12,711,481 km (0.045 R)
• M12: 14,049,185 km (0.085 R)
• M13: 18,836,167 km (0.084 R)
• M14: 21,711,289 km (0.068 R)
• M15: 24,530,460 km (0.12 R)
• M16: 28,318,129 km (0.113 R)
• M17: 29,917,629 km (0.065 R)
• M18: 30,984,262 km (0.072 R)
• M19: 34,864,681 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.2

Radius: 3.2

Gravity: 9.39 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.42 AU - 7.24 AU

Year: 11349 Days

Day: 21.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,067,510 km

• M1: 100,679 km (0.114 R)
• M2: 273,016 km (0.07 R)
• M3: 386,561 km (0.065 R)
• M4: 555,008 km (0.091 R)
• M5: 2,117,707 km (0.086 R)
• M6: 2,252,495 km (0.075 R)
• M7: 2,589,539 km (0.086 R)
• M8: 7,135,669 km (0.08 R)
• M9: 7,439,203 km (0.098 R)
• M10: 13,385,718 km (0.045 R)
• M11: 20,103,560 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.6

Radius: 7.4

Gravity: 13.67 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.35 AU - 8.67 AU

Year: 13086 Days

Day: 24.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 59,067,510 km

• M1: 92,003 km (0.095 R)
• M2: 356,941 km (0.1 R)
• M3: 615,146 km (0.05 R)
• M4: 877,092 km (0.117 R)
• M5: 1,305,241 km (0.091 R)
• M6: 1,560,306 km (0.03 R)
• M7: 2,642,347 km (0.071 R)
• M8: 3,810,108 km (0.068 R)
• M9: 4,683,461 km (0.11 R)
• M10: 5,757,872 km (0.076 R)
• M11: 6,021,763 km (0.113 R)
• M12: 6,293,582 km (0.098 R)
• M13: 7,915,223 km (0.107 R)
• M14: 10,449,112 km (0.107 R)
• M15: 12,020,488 km (0.088 R)
• M16: 14,979,534 km (0.06 R)
• M17: 16,740,899 km (0.085 R)
• M18: 17,435,482 km (0.117 R)
• M19: 22,380,739 km (0.063 R)
• M20: 23,034,482 km (0.077 R)
• M21: 26,083,137 km (0.047 R)
• M22: 28,078,922 km (0.057 R)
• M23: 28,729,822 km (0.095 R)
• M24: 32,609,194 km (0.051 R)
• M25: 33,570,211 km (0.062 R)
• M26: 35,801,463 km (0.047 R)
• M27: 37,082,769 km (0.093 R)
• M28: 39,465,713 km (0.094 R)
• M29: 41,808,267 km (0.043 R)
• M30: 45,122,907 km (0.061 R)
• M31: 45,419,110 km (0.107 R)
• M32: 52,924,735 km (0.098 R)
• M33: 53,419,455 km (0.079 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 258 - 19,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit