🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.53 AU - 0.73 AU

Year: 189 Days

Day: 19.2 Hours

Environment

Temp: 175 °C

Axial Tilt: 20.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 57,039,058 km

• M1: 21,692 km (0.081 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.91 AU - 2.49 AU

Year: 1236 Days

Day: 42.8 Hours

Environment

Temp: -78 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,039,058 km

• M1: 40,990 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.1

Radius: 9.3

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.68 AU - 5.5 AU

Year: 3724 Days

Day: 12 Hours

Environment

Temp: -146 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,039,058 km

• M1: 130,599 km (0.079 R)
• M2: 1,786,348 km (0.109 R)
• M3: 2,333,577 km (0.069 R)
• M4: 3,465,135 km (0.081 R)
• M5: 4,213,125 km (0.089 R)
• M6: 5,679,334 km (0.082 R)
• M7: 6,598,612 km (0.102 R)
• M8: 7,876,777 km (0.079 R)
• M9: 9,282,997 km (0.103 R)
• M10: 9,951,998 km (0.038 R)
• M11: 10,298,467 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.3

Radius: 14.6

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 5.88 AU - 8.68 AU

Year: 7440 Days

Day: 5.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,039,058 km

• M1: 196,422 km (0.117 R)
• M2: 1,284,597 km (0.086 R)
• M3: 2,030,193 km (0.103 R)
• M4: 3,524,077 km (0.114 R)
• M5: 4,548,822 km (0.045 R)
• M6: 6,106,435 km (0.119 R)
• M7: 8,356,986 km (0.09 R)
• M8: 9,146,563 km (0.088 R)
• M9: 9,835,910 km (0.051 R)
• M10: 13,171,345 km (0.086 R)
• M11: 15,470,065 km (0.04 R)
• M12: 18,705,568 km (0.11 R)
• M13: 19,877,518 km (0.046 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 52.1

Radius: 4.1

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 9.76 AU - 14.68 AU

Year: 16179 Days

Day: 23.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,039,058 km

• M1: 51,013 km (0.06 R)
• M2: 181,163 km (0.078 R)
• M3: 492,775 km (0.069 R)
• M4: 851,511 km (0.105 R)
• M5: 1,158,785 km (0.082 R)
• M6: 1,920,687 km (0.105 R)
• M7: 3,648,991 km (0.041 R)
• M8: 5,036,661 km (0.102 R)
• M9: 6,392,317 km (0.114 R)
• M10: 7,652,829 km (0.111 R)
• M11: 9,308,877 km (0.088 R)
• M12: 11,464,134 km (0.066 R)
• M13: 11,696,459 km (0.068 R)
• M14: 14,194,893 km (0.094 R)
• M15: 17,390,752 km (0.043 R)
• M16: 20,827,764 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 886.6

Radius: 7.9

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 10.21 AU - 15.81 AU

Year: 17773 Days

Day: 18.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,039,058 km

• M1: 98,286 km (0.077 R)
• M2: 544,686 km (0.063 R)
• M3: 1,337,854 km (0.1 R)
• M4: 1,707,660 km (0.102 R)
• M5: 2,313,082 km (0.105 R)
• M6: 2,677,802 km (0.103 R)
• M7: 3,296,539 km (0.089 R)
• M8: 3,610,395 km (0.095 R)
• M9: 4,331,756 km (0.103 R)
• M10: 5,609,023 km (0.088 R)
• M11: 6,141,890 km (0.093 R)
• M12: 7,597,777 km (0.096 R)
• M13: 7,944,694 km (0.083 R)
• M14: 9,214,780 km (0.089 R)
• M15: 9,724,161 km (0.083 R)
• M16: 11,048,850 km (0.056 R)
• M17: 13,685,812 km (0.109 R)
• M18: 15,344,702 km (0.094 R)
• M19: 18,518,870 km (0.097 R)
• M20: 21,023,288 km (0.073 R)
• M21: 23,955,556 km (0.057 R)
• M22: 26,017,912 km (0.103 R)
• M23: 32,521,081 km (0.089 R)
• M24: 42,769,134 km (0.108 R)
• M25: 46,942,316 km (0.039 R)
• M26: 75,276,302 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.7

Radius: 7.1

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 13.71 AU - 19.89 AU

Year: 26080 Days

Day: 22.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,039,058 km

• M1: 88,263 km (0.095 R)
• M2: 790,326 km (0.111 R)
• M3: 1,298,659 km (0.095 R)
• M4: 2,079,560 km (0.114 R)
• M5: 2,366,489 km (0.101 R)
• M6: 5,382,382 km (0.098 R)
• M7: 7,687,386 km (0.118 R)
• M8: 8,329,310 km (0.065 R)
• M9: 17,140,326 km (0.097 R)
• M10: 17,681,272 km (0.114 R)
• M11: 23,353,724 km (0.085 R)
• M12: 25,987,095 km (0.115 R)
• M13: 49,691,476 km (0.11 R)
• M14: 56,358,305 km (0.119 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 533 - 16,096 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit