🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.44 AU - 0.66 AU

Year: 142 Days

Day: 41.4 Hours

Environment

Temp: 237 °C

Axial Tilt: 35.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.69 AU - 0.69 AU

Year: 200 Days

Day: 26.5 Hours

Environment

Temp: 185 °C

Axial Tilt: 2.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.71 AU - 1.05 AU

Year: 287 Days

Day: 43.5 Hours

Environment

Temp: 187 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 41,507,564 km

• M1: 40,990 km (0.098 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.99 AU - 1.25 AU

Year: 413 Days

Day: 15.5 Hours

Environment

Temp: 160 °C

Axial Tilt: 42.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 41,507,564 km

• M1: 349,012 km (0.072 R)
• M2: 603,029 km (0.11 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.3 AU - 1.84 AU

Year: 685 Days

Day: 44.6 Hours

Environment

Temp: -20 °C

Axial Tilt: 20 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.92

Radius: 0.97

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.73 AU - 1.79 AU

Year: 813 Days

Day: 32.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,507,564 km

• M1: 358,137 km (0.069 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.48 AU - 3.74 AU

Year: 2389 Days

Day: 36.3 Hours

Environment

Temp: -107 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,507,564 km

• M1: 168,148 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.7

Radius: 8.3

Gravity: 9.43 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 5.97 AU - 8.39 AU

Year: 6700 Days

Day: 9.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 41,507,564 km

• M1: 108,309 km (0.12 R)
• M2: 632,051 km (0.099 R)
• M3: 1,026,391 km (0.056 R)
• M4: 1,454,989 km (0.088 R)
• M5: 2,076,269 km (0.049 R)
• M6: 2,370,079 km (0.049 R)
• M7: 2,922,394 km (0.1 R)
• M8: 3,229,220 km (0.114 R)
• M9: 4,411,641 km (0.08 R)
• M10: 4,873,001 km (0.065 R)
• M11: 5,796,618 km (0.052 R)
• M12: 6,727,267 km (0.083 R)
• M13: 7,413,173 km (0.095 R)
• M14: 7,908,791 km (0.1 R)
• M15: 8,184,799 km (0.081 R)
• M16: 9,841,745 km (0.087 R)
• M17: 10,534,981 km (0.097 R)
• M18: 11,459,197 km (0.105 R)
• M19: 12,174,125 km (0.105 R)
• M20: 12,595,692 km (0.062 R)
• M21: 13,301,644 km (0.086 R)
• M22: 15,825,211 km (0.08 R)
• M23: 18,513,185 km (0.057 R)
• M24: 19,711,913 km (0.095 R)
• M25: 22,577,311 km (0.09 R)
• M26: 23,213,999 km (0.073 R)
• M27: 23,862,656 km (0.096 R)
• M28: 28,193,813 km (0.118 R)
• M29: 29,873,348 km (0.032 R)
• M30: 33,225,537 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.1

Radius: 9.1

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 8.01 AU - 11.37 AU

Year: 10505 Days

Day: 9.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,507,564 km

• M1: 124,017 km (0.111 R)
• M2: 636,838 km (0.092 R)
• M3: 1,264,700 km (0.041 R)
• M4: 2,420,643 km (0.096 R)
• M5: 2,842,659 km (0.086 R)
• M6: 3,290,854 km (0.106 R)
• M7: 4,864,923 km (0.106 R)
• M8: 6,137,402 km (0.052 R)
• M9: 8,064,971 km (0.112 R)
• M10: 9,054,411 km (0.093 R)
• M11: 9,694,989 km (0.073 R)
• M12: 10,267,799 km (0.105 R)
• M13: 14,679,740 km (0.098 R)
• M14: 17,298,451 km (0.11 R)
• M15: 18,937,594 km (0.051 R)
• M16: 19,606,297 km (0.064 R)
• M17: 21,787,583 km (0.025 R)
• M18: 28,226,276 km (0.112 R)
• M19: 31,823,805 km (0.082 R)

Kuiper Belt

Range: 31.5 - 58.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 20,134 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit