🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.51

Radius: 0.76

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.48 AU - 0.62 AU

Year: 179 Days

Day: 22.5 Hours

Environment

Temp: 31 °C

Axial Tilt: 28.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.22

Radius: 0.55

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.04 AU - 1.16 AU

Year: 507 Days

Day: 19.5 Hours

Environment

Temp: -71 °C

Axial Tilt: 7.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.3

Radius: 13

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 2.24 AU - 3 AU

Year: 1865 Days

Day: 14.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 46,060,968 km

• M1: 197,768 km (0.119 R)
• M2: 1,225,207 km (0.119 R)
• M3: 2,500,528 km (0.05 R)
• M4: 3,375,676 km (0.071 R)
• M5: 5,655,996 km (0.045 R)
• M6: 6,170,314 km (0.097 R)
• M7: 7,161,848 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.6

Radius: 13

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.98 AU - 3.84 AU

Year: 2769 Days

Day: 13.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,060,968 km

• M1: 161,715 km (0.094 R)
• M2: 636,988 km (0.05 R)
• M3: 1,088,175 km (0.057 R)
• M4: 1,703,172 km (0.09 R)
• M5: 4,131,744 km (0.038 R)
• M6: 6,888,683 km (0.106 R)
• M7: 7,670,032 km (0.099 R)
• M8: 10,939,793 km (0.034 R)
• M9: 12,092,145 km (0.108 R)
• M10: 17,464,654 km (0.052 R)
• M11: 21,406,558 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172

Radius: 14.1

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.37 AU - 5.15 AU

Year: 3866 Days

Day: 13 Hours

Environment

Temp: -157 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,060,968 km

• M1: 175,329 km (0.06 R)
• M2: 639,082 km (0.113 R)
• M3: 1,081,144 km (0.068 R)
• M4: 2,305,752 km (0.063 R)
• M5: 3,272,453 km (0.082 R)
• M6: 3,921,858 km (0.108 R)
• M7: 4,554,657 km (0.102 R)
• M8: 5,832,522 km (0.115 R)
• M9: 7,621,413 km (0.104 R)
• M10: 8,150,990 km (0.058 R)
• M11: 12,018,992 km (0.12 R)
• M12: 14,797,174 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682

Radius: 8.4

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.54 AU - 6.24 AU

Year: 5502 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,060,968 km

• M1: 104,569 km (0.112 R)
• M2: 714,180 km (0.039 R)
• M3: 1,134,550 km (0.114 R)
• M4: 1,408,464 km (0.11 R)
• M5: 3,023,672 km (0.118 R)
• M6: 3,430,429 km (0.076 R)
• M7: 3,781,685 km (0.106 R)
• M8: 6,617,013 km (0.093 R)
• M9: 7,555,889 km (0.119 R)
• M10: 8,820,889 km (0.082 R)
• M11: 15,423,690 km (0.107 R)
• M12: 17,574,010 km (0.039 R)
• M13: 19,847,150 km (0.114 R)
• M14: 21,786,536 km (0.111 R)
• M15: 24,725,386 km (0.076 R)
• M16: 31,376,209 km (0.119 R)
• M17: 31,756,038 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.4

Radius: 6.1

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 8.99 AU - 10.43 AU

Year: 13304 Days

Day: 19 Hours

Environment

Temp: -209 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 46,060,968 km

• M1: 75,846 km (0.096 R)
• M2: 267,780 km (0.076 R)
• M3: 483,800 km (0.072 R)
• M4: 1,085,333 km (0.034 R)
• M5: 1,445,863 km (0.081 R)
• M6: 3,199,001 km (0.051 R)
• M7: 3,630,890 km (0.098 R)
• M8: 3,834,941 km (0.119 R)
• M9: 5,225,304 km (0.106 R)
• M10: 5,519,114 km (0.11 R)
• M11: 5,893,259 km (0.1 R)
• M12: 7,478,996 km (0.108 R)
• M13: 11,141,750 km (0.116 R)
• M14: 12,472,872 km (0.08 R)
• M15: 14,727,312 km (0.095 R)
• M16: 16,814,202 km (0.109 R)
• M17: 29,019,893 km (0.051 R)
• M18: 29,632,197 km (0.089 R)
• M19: 30,566,435 km (0.077 R)
• M20: 32,384,797 km (0.112 R)
• M21: 34,048,027 km (0.045 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 266 - 13,291 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit