🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.68 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.13 AU - 1.59 AU

Year: 576 Days

Day: 28.6 Hours

Environment

Temp: -4 °C

Axial Tilt: 9.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.33 AU - 1.77 AU

Year: 701 Days

Day: 38.6 Hours

Environment

Temp: -39 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,759,857 km

• M1: 555,307 km (0.107 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.9 AU - 2.48 AU

Year: 1178 Days

Day: 17.2 Hours

Environment

Temp: -64 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,759,857 km

• M1: 73,004 km (0.077 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.43 AU - 2.99 AU

Year: 1621 Days

Day: 32.5 Hours

Environment

Temp: -91 °C

Axial Tilt: 10.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,759,857 km

• M1: 161,865 km (0.072 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.83 AU - 2.97 AU

Year: 1795 Days

Day: 28.6 Hours

Environment

Temp: -90 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.37 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 360.1

Radius: 12.9

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.04 AU - 9.64 AU

Year: 7978 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 30,759,857 km

• M1: 160,369 km (0.109 R)
• M2: 584,778 km (0.09 R)
• M3: 1,045,689 km (0.105 R)
• M4: 1,654,552 km (0.036 R)
• M5: 2,094,819 km (0.115 R)
• M6: 2,613,924 km (0.074 R)
• M7: 4,032,710 km (0.069 R)
• M8: 4,579,340 km (0.053 R)
• M9: 5,035,165 km (0.114 R)
• M10: 6,133,513 km (0.075 R)
• M11: 9,046,782 km (0.085 R)
• M12: 9,595,058 km (0.062 R)
• M13: 12,832,805 km (0.119 R)
• M14: 14,243,662 km (0.078 R)
• M15: 14,986,715 km (0.093 R)
• M16: 15,755,498 km (0.092 R)
• M17: 18,486,856 km (0.095 R)
• M18: 19,440,393 km (0.11 R)
• M19: 20,932,033 km (0.116 R)
• M20: 22,118,644 km (0.093 R)
• M21: 22,651,661 km (0.072 R)
• M22: 26,712,345 km (0.064 R)
• M23: 27,666,630 km (0.052 R)
• M24: 30,572,569 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 703.1

Radius: 6.4

Gravity: 17.17 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 11 AU - 17.72 AU

Year: 19777 Days

Day: 19.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 30,759,857 km

• M1: 80,783 km (0.102 R)
• M2: 835,953 km (0.103 R)
• M3: 1,226,403 km (0.078 R)
• M4: 1,697,038 km (0.095 R)
• M5: 1,916,498 km (0.078 R)
• M6: 2,154,957 km (0.113 R)
• M7: 3,571,350 km (0.108 R)
• M8: 4,157,325 km (0.109 R)
• M9: 4,841,286 km (0.047 R)
• M10: 6,257,829 km (0.079 R)
• M11: 6,831,088 km (0.093 R)
• M12: 8,391,094 km (0.067 R)
• M13: 9,309,775 km (0.051 R)
• M14: 10,174,600 km (0.059 R)
• M15: 13,951,797 km (0.108 R)
• M16: 19,473,454 km (0.12 R)
• M17: 20,311,053 km (0.118 R)
• M18: 20,979,157 km (0.114 R)
• M19: 22,865,885 km (0.113 R)
• M20: 24,647,446 km (0.092 R)
• M21: 31,043,054 km (0.058 R)
• M22: 31,420,789 km (0.11 R)
• M23: 33,486,586 km (0.114 R)
• M24: 44,384,791 km (0.114 R)
• M25: 51,412,300 km (0.09 R)
• M26: 57,617,022 km (0.103 R)
• M27: 59,339,342 km (0.118 R)
• M28: 59,726,651 km (0.109 R)
• M29: 64,302,700 km (0.081 R)
• M30: 66,780,489 km (0.091 R)
• M31: 74,594,585 km (0.057 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 19.7

Radius: 3.6

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 18.08 AU - 20.1 AU

Year: 30314 Days

Day: 15.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,759,857 km

• M1: 45,029 km (0.104 R)
• M2: 180,265 km (0.115 R)
• M3: 371,751 km (0.104 R)
• M4: 1,168,808 km (0.07 R)
• M5: 1,651,560 km (0.112 R)
• M6: 3,747,576 km (0.097 R)
• M7: 6,193,950 km (0.11 R)
• M8: 6,982,331 km (0.072 R)
• M9: 9,491,087 km (0.069 R)
• M10: 11,895,574 km (0.114 R)
• M11: 13,002,748 km (0.12 R)
• M12: 23,190,812 km (0.089 R)
• M13: 27,389,725 km (0.071 R)

Kuiper Belt

Range: 30.2 - 60.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 535 - 19,071 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit