🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.87

Radius: 0.95

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.61 AU - 0.75 AU

Year: 198 Days

Day: 12.7 Hours

Environment

Temp: 203 °C

Axial Tilt: 15.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.88 AU - 1.38 AU

Year: 424 Days

Day: 30.7 Hours

Environment

Temp: 43 °C

Axial Tilt: 9.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.71 AU - 2.85 AU

Year: 1216 Days

Day: 42.8 Hours

Environment

Temp: -71 °C

Axial Tilt: 47.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.6 AU - 3.24 AU

Year: 1762 Days

Day: 40.8 Hours

Environment

Temp: -91 °C

Axial Tilt: 48 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.22 AU - 3.76 AU

Year: 2302 Days

Day: 27 Hours

Environment

Temp: -113 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,533,327 km

• M1: 575,353 km (0.083 R)

Planet 6 - Terrestrial

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.12 AU - 5.28 AU

Year: 4187 Days

Day: 27.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.2

Radius: 12.4

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.27 AU - 8.17 AU

Year: 7574 Days

Day: 13.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,533,327 km

• M1: 154,385 km (0.107 R)
• M2: 543,040 km (0.095 R)
• M3: 929,302 km (0.087 R)
• M4: 2,373,370 km (0.093 R)
• M5: 3,427,437 km (0.116 R)
• M6: 4,982,058 km (0.115 R)
• M7: 5,473,487 km (0.079 R)
• M8: 6,934,609 km (0.081 R)
• M9: 7,869,446 km (0.088 R)
• M10: 8,537,999 km (0.037 R)
• M11: 12,959,514 km (0.049 R)
• M12: 14,326,988 km (0.085 R)
• M13: 16,261,737 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.1

Radius: 11.2

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 8.77 AU - 13.87 AU

Year: 13448 Days

Day: 13.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,533,327 km

• M1: 139,276 km (0.074 R)
• M2: 564,732 km (0.094 R)
• M3: 920,476 km (0.116 R)
• M4: 1,288,935 km (0.093 R)
• M5: 1,774,231 km (0.101 R)
• M6: 2,582,807 km (0.1 R)
• M7: 3,166,987 km (0.051 R)
• M8: 3,648,243 km (0.102 R)
• M9: 4,952,737 km (0.069 R)
• M10: 5,532,428 km (0.06 R)
• M11: 6,868,936 km (0.098 R)
• M12: 7,459,847 km (0.067 R)
• M13: 8,938,473 km (0.052 R)
• M14: 9,387,566 km (0.115 R)
• M15: 10,994,097 km (0.101 R)
• M16: 14,201,326 km (0.074 R)
• M17: 19,355,272 km (0.111 R)
• M18: 20,023,525 km (0.077 R)
• M19: 22,211,544 km (0.108 R)
• M20: 25,239,106 km (0.117 R)
• M21: 26,851,471 km (0.088 R)
• M22: 31,294,977 km (0.075 R)
• M23: 34,232,331 km (0.116 R)
• M24: 38,254,120 km (0.07 R)
• M25: 38,909,808 km (0.092 R)
• M26: 42,300,892 km (0.086 R)
• M27: 43,143,278 km (0.114 R)
• M28: 47,825,392 km (0.103 R)
• M29: 48,280,918 km (0.083 R)
• M30: 53,485,428 km (0.108 R)
• M31: 55,802,100 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589

Radius: 10.3

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 10.75 AU - 11.89 AU

Year: 13448 Days

Day: 11.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,533,327 km

• M1: 128,205 km (0.057 R)
• M2: 678,726 km (0.099 R)
• M3: 1,068,578 km (0.069 R)
• M4: 1,507,498 km (0.112 R)
• M5: 2,463,129 km (0.109 R)
• M6: 3,144,398 km (0.066 R)
• M7: 3,835,989 km (0.078 R)
• M8: 6,970,962 km (0.079 R)
• M9: 7,348,696 km (0.113 R)
• M10: 8,237,308 km (0.05 R)
• M11: 9,962,769 km (0.104 R)
• M12: 10,938,297 km (0.118 R)
• M13: 13,142,023 km (0.116 R)
• M14: 13,982,015 km (0.075 R)
• M15: 23,408,776 km (0.105 R)
• M16: 23,783,817 km (0.078 R)
• M17: 25,030,267 km (0.109 R)
• M18: 26,018,361 km (0.089 R)
• M19: 38,924,319 km (0.054 R)
• M20: 40,249,906 km (0.073 R)
• M21: 46,293,809 km (0.099 R)
• M22: 49,300,427 km (0.054 R)

Kuiper Belt

Range: 31.1 - 61.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 10,970 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit