🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.57 AU - 0.67 AU

Year: 184 Days

Day: 22 Hours

Environment

Temp: 136 °C

Axial Tilt: 4.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,043,609 km

• M1: 42,486 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.87 AU - 0.87 AU

Year: 306 Days

Day: 12.7 Hours

Environment

Temp: 36 °C

Axial Tilt: 7.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.27 AU - 1.39 AU

Year: 578 Days

Day: 12.1 Hours

Environment

Temp: -24 °C

Axial Tilt: 28.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.99 AU - 2.49 AU

Year: 1263 Days

Day: 41.7 Hours

Environment

Temp: -79 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 50,043,609 km

• M1: 32,463 km (0.099 R)
• M2: 41,887 km (0.054 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.99 AU - 3.45 AU

Year: 2177 Days

Day: 39.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627

Radius: 8.6

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.54 AU - 5.24 AU

Year: 3465 Days

Day: 9.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,043,609 km

• M1: 106,962 km (0.09 R)
• M2: 485,894 km (0.118 R)
• M3: 821,292 km (0.07 R)
• M4: 1,636,302 km (0.103 R)
• M5: 1,988,006 km (0.103 R)
• M6: 2,812,141 km (0.093 R)
• M7: 3,210,370 km (0.086 R)
• M8: 4,800,446 km (0.105 R)
• M9: 5,167,709 km (0.096 R)
• M10: 6,383,042 km (0.118 R)
• M11: 7,614,382 km (0.093 R)
• M12: 7,979,251 km (0.065 R)
• M13: 9,748,096 km (0.078 R)
• M14: 10,138,996 km (0.117 R)
• M15: 10,499,527 km (0.098 R)
• M16: 11,895,723 km (0.111 R)
• M17: 12,986,142 km (0.037 R)
• M18: 15,259,880 km (0.12 R)
• M19: 16,055,442 km (0.067 R)
• M20: 16,934,030 km (0.11 R)
• M21: 17,328,520 km (0.072 R)
• M22: 19,824,710 km (0.04 R)
• M23: 21,814,362 km (0.098 R)
• M24: 22,214,237 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.5

Radius: 11

Gravity: 6.95 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.1 AU - 5.38 AU

Year: 3888 Days

Day: 11.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 50,043,609 km

• M1: 154,684 km (0.11 R)
• M2: 609,312 km (0.097 R)
• M3: 1,019,659 km (0.117 R)
• M4: 1,737,729 km (0.104 R)
• M5: 2,836,226 km (0.115 R)
• M6: 3,258,840 km (0.07 R)
• M7: 3,895,229 km (0.081 R)
• M8: 5,200,172 km (0.085 R)
• M9: 6,587,393 km (0.114 R)
• M10: 7,067,901 km (0.112 R)
• M11: 10,760,724 km (0.078 R)
• M12: 11,564,963 km (0.052 R)
• M13: 12,360,973 km (0.117 R)
• M14: 12,944,554 km (0.065 R)
• M15: 13,495,523 km (0.116 R)
• M16: 13,957,930 km (0.066 R)
• M17: 16,142,209 km (0.079 R)
• M18: 17,436,081 km (0.107 R)
• M19: 19,439,944 km (0.097 R)
• M20: 21,315,303 km (0.098 R)
• M21: 21,943,016 km (0.075 R)
• M22: 24,199,550 km (0.097 R)
• M23: 25,036,251 km (0.1 R)
• M24: 25,813,561 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.2

Radius: 3.7

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 15.04 AU - 18.72 AU

Year: 26127 Days

Day: 24.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,043,609 km

• M1: 57,894 km (0.112 R)
• M2: 208,091 km (0.103 R)
• M3: 509,082 km (0.114 R)
• M4: 678,426 km (0.068 R)
• M5: 799,451 km (0.056 R)
• M6: 5,105,476 km (0.068 R)
• M7: 9,015,815 km (0.112 R)
• M8: 11,117,665 km (0.076 R)
• M9: 11,338,771 km (0.104 R)
• M10: 11,619,267 km (0.11 R)
• M11: 12,847,764 km (0.116 R)
• M12: 17,789,880 km (0.09 R)
• M13: 22,517,621 km (0.088 R)
• M14: 28,325,160 km (0.11 R)
• M15: 31,077,013 km (0.085 R)
• M16: 34,350,813 km (0.083 R)
• M17: 36,860,018 km (0.092 R)
• M18: 38,472,982 km (0.066 R)
• M19: 46,529,426 km (0.057 R)
• M20: 48,558,571 km (0.071 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 20,230 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit