🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.53

Radius: 0.78

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.51 AU - 0.57 AU

Year: 167 Days

Day: 15 Hours

Environment

Temp: 104 °C

Axial Tilt: 0.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.14

Radius: 0.46

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.58 AU - 0.7 AU

Year: 216 Days

Day: 29.4 Hours

Environment

Temp: 36 °C

Axial Tilt: 34.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.83 AU - 1.13 AU

Year: 409 Days

Day: 24.8 Hours

Environment

Temp: -43 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.08 AU - 1.64 AU

Year: 669 Days

Day: 47.5 Hours

Environment

Temp: -71 °C

Axial Tilt: 28.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.32 AU - 2.08 AU

Year: 935 Days

Day: 37 Hours

Environment

Temp: -93 °C

Axial Tilt: 130.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.6

Radius: 12.4

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.34 AU - 8.52 AU

Year: 7694 Days

Day: 11.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 92,069,722 km

• M1: 154,235 km (0.113 R)
• M2: 734,974 km (0.054 R)
• M3: 1,132,456 km (0.045 R)
• M4: 1,637,947 km (0.086 R)
• M5: 3,745,033 km (0.068 R)
• M6: 4,888,858 km (0.076 R)
• M7: 6,503,019 km (0.1 R)
• M8: 7,531,654 km (0.091 R)
• M9: 8,621,924 km (0.102 R)
• M10: 9,671,802 km (0.112 R)
• M11: 11,697,805 km (0.096 R)
• M12: 13,099,538 km (0.054 R)
• M13: 14,547,795 km (0.058 R)
• M14: 15,966,730 km (0.063 R)
• M15: 16,573,200 km (0.113 R)
• M16: 18,706,017 km (0.105 R)
• M17: 19,684,985 km (0.101 R)
• M18: 21,662,968 km (0.065 R)
• M19: 23,770,204 km (0.063 R)
• M20: 27,708,966 km (0.052 R)
• M21: 31,324,897 km (0.12 R)
• M22: 32,062,863 km (0.093 R)
• M23: 34,346,474 km (0.104 R)
• M24: 43,387,721 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328

Radius: 10.9

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.8 AU - 8.88 AU

Year: 8387 Days

Day: 11.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 92,069,722 km

• M1: 135,685 km (0.093 R)
• M2: 753,674 km (0.117 R)
• M3: 1,817,913 km (0.062 R)
• M4: 2,261,321 km (0.089 R)
• M5: 3,368,495 km (0.092 R)
• M6: 4,337,441 km (0.079 R)
• M7: 6,853,527 km (0.117 R)
• M8: 8,842,581 km (0.086 R)
• M9: 10,671,714 km (0.106 R)
• M10: 17,983,908 km (0.093 R)
• M11: 19,264,765 km (0.078 R)
• M12: 23,393,217 km (0.069 R)
• M13: 25,496,563 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.4

Radius: 5.1

Gravity: 34.85 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 12.64 AU - 16.25 AU

Year: 23143 Days

Day: 21.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 92,069,722 km

• M1: 63,878 km (0.073 R)
• M2: 238,908 km (0.11 R)
• M3: 491,878 km (0.093 R)
• M4: 674,836 km (0.062 R)
• M5: 1,029,832 km (0.107 R)
• M6: 1,854,266 km (0.099 R)
• M7: 2,522,818 km (0.097 R)
• M8: 2,939,149 km (0.101 R)
• M9: 3,163,845 km (0.085 R)
• M10: 4,464,300 km (0.098 R)
• M11: 5,273,175 km (0.113 R)
• M12: 6,175,400 km (0.042 R)
• M13: 6,639,453 km (0.07 R)
• M14: 7,481,090 km (0.102 R)
• M15: 13,000,205 km (0.063 R)
• M16: 13,916,641 km (0.052 R)
• M17: 14,310,981 km (0.092 R)
• M18: 14,875,414 km (0.113 R)
• M19: 16,657,873 km (0.108 R)
• M20: 17,922,274 km (0.037 R)
• M21: 18,959,585 km (0.112 R)
• M22: 19,640,106 km (0.102 R)
• M23: 21,360,631 km (0.107 R)
• M24: 23,069,338 km (0.062 R)
• M25: 23,399,501 km (0.095 R)
• M26: 29,895,788 km (0.099 R)
• M27: 35,708,563 km (0.115 R)
• M28: 41,740,947 km (0.11 R)
• M29: 44,911,226 km (0.117 R)
• M30: 47,702,572 km (0.11 R)
• M31: 49,687,287 km (0.101 R)
• M32: 51,164,865 km (0.084 R)
• M33: 53,052,641 km (0.113 R)
• M34: 58,177,266 km (0.078 R)
• M35: 64,054,367 km (0.074 R)
• M36: 79,446,642 km (0.107 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: 252 - 19,413 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit