🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.93 AU - 0.95 AU

Year: 345 Days

Day: 34.2 Hours

Environment

Temp: 17 °C

Axial Tilt: 11.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.06 AU - 1.08 AU

Year: 419 Days

Day: 22.6 Hours

Environment

Temp: 16 °C

Axial Tilt: 29.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 35,743,114 km

• M1: 66,721 km (0.053 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.49 AU - 1.65 AU

Year: 745 Days

Day: 41.2 Hours

Environment

Temp: -62 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.51 AU - 2.29 AU

Year: 992 Days

Day: 31.1 Hours

Environment

Temp: -81 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 35,743,114 km

• M1: 1,334,413 km (0.116 R)
• M2: 1,580,651 km (0.115 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.96 AU - 2.44 AU

Year: 1236 Days

Day: 28.9 Hours

Environment

Temp: -82 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.7

Radius: 14.4

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.38 AU - 5.28 AU

Year: 4020 Days

Day: 10.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,743,114 km

• M1: 181,163 km (0.067 R)
• M2: 717,471 km (0.095 R)
• M3: 1,579,754 km (0.101 R)
• M4: 2,085,544 km (0.113 R)
• M5: 3,298,334 km (0.12 R)
• M6: 3,831,949 km (0.096 R)
• M7: 6,437,496 km (0.053 R)
• M8: 7,160,951 km (0.06 R)
• M9: 8,379,874 km (0.118 R)
• M10: 12,360,524 km (0.029 R)
• M11: 14,065,192 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.8

Radius: 14.5

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.19 AU - 10.23 AU

Year: 8910 Days

Day: 8.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,743,114 km

• M1: 182,659 km (0.108 R)
• M2: 684,410 km (0.074 R)
• M3: 1,219,372 km (0.094 R)
• M4: 1,757,925 km (0.07 R)
• M5: 2,338,963 km (0.119 R)
• M6: 3,943,699 km (0.1 R)
• M7: 4,599,087 km (0.074 R)
• M8: 5,474,833 km (0.111 R)
• M9: 7,011,951 km (0.11 R)
• M10: 7,521,332 km (0.103 R)
• M11: 10,451,057 km (0.078 R)
• M12: 11,610,889 km (0.026 R)
• M13: 13,454,085 km (0.109 R)
• M14: 14,014,927 km (0.102 R)
• M15: 14,944,678 km (0.069 R)
• M16: 15,791,551 km (0.052 R)
• M17: 18,320,204 km (0.105 R)
• M18: 20,735,910 km (0.068 R)
• M19: 31,447,716 km (0.094 R)
• M20: 34,374,150 km (0.079 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 17,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit