🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.9

Radius: 12.3

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.45 AU - 0.73 AU

Year: 302 Days

Day: 13.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 21,317,936 km

• M1: 154,535 km (0.094 R)
• M2: 676,482 km (0.065 R)
• M3: 1,137,542 km (0.104 R)
• M4: 1,641,986 km (0.094 R)
• M5: 2,065,947 km (0.114 R)
• M6: 2,525,062 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.1

Radius: 13.6

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.73 AU - 0.93 AU

Year: 504 Days

Day: 9.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 21,317,936 km

• M1: 170,093 km (0.029 R)
• M2: 637,287 km (0.106 R)
• M3: 1,075,160 km (0.075 R)
• M4: 1,847,534 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.5

Radius: 13.1

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.92 AU - 1 AU

Year: 627 Days

Day: 14 Hours

Environment

Temp: -175 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,317,936 km

• M1: 163,062 km (0.085 R)
• M2: 683,513 km (0.047 R)
• M3: 1,409,212 km (0.092 R)
• M4: 2,418,399 km (0.084 R)
• M5: 2,975,651 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.9

Radius: 13

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.8 AU - 1.24 AU

Year: 687 Days

Day: 9.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,317,936 km

• M1: 161,715 km (0.108 R)
• M2: 650,302 km (0.107 R)
• M3: 1,281,755 km (0.067 R)
• M4: 1,687,763 km (0.117 R)
• M5: 2,126,235 km (0.077 R)
• M6: 2,536,282 km (0.042 R)
• M7: 3,913,630 km (0.114 R)
• M8: 4,443,954 km (0.107 R)
• M9: 4,873,001 km (0.088 R)
• M10: 5,704,616 km (0.11 R)
• M11: 6,568,244 km (0.085 R)
• M12: 7,212,712 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.7

Radius: 11.8

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.3 AU - 1.7 AU

Year: 1225 Days

Day: 6.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,317,936 km

• M1: 148,401 km (0.07 R)
• M2: 683,662 km (0.037 R)
• M3: 1,120,937 km (0.074 R)
• M4: 1,933,253 km (0.075 R)
• M5: 2,790,898 km (0.116 R)
• M6: 3,233,857 km (0.074 R)
• M7: 3,936,518 km (0.083 R)
• M8: 4,757,511 km (0.086 R)
• M9: 5,331,668 km (0.103 R)
• M10: 6,198,887 km (0.119 R)
• M11: 6,618,808 km (0.095 R)
• M12: 7,032,895 km (0.12 R)
• M13: 7,412,574 km (0.108 R)
• M14: 8,324,224 km (0.066 R)
• M15: 8,720,808 km (0.099 R)
• M16: 9,399,683 km (0.102 R)
• M17: 9,986,855 km (0.095 R)
• M18: 12,074,643 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.2

Radius: 13.7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.74 AU - 2.9 AU

Year: 2356 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 21,317,936 km

• M1: 170,392 km (0.107 R)
• M2: 747,241 km (0.062 R)
• M3: 1,184,965 km (0.081 R)
• M4: 2,061,010 km (0.103 R)
• M5: 2,999,437 km (0.067 R)
• M6: 3,696,713 km (0.035 R)
• M7: 4,351,353 km (0.059 R)
• M8: 5,664,523 km (0.084 R)
• M9: 8,517,953 km (0.073 R)
• M10: 9,131,005 km (0.118 R)
• M11: 11,029,402 km (0.115 R)
• M12: 13,268,134 km (0.088 R)
• M13: 16,617,481 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.3

Radius: 14.4

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.5 AU - 3.42 AU

Year: 3396 Days

Day: 7.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,317,936 km

• M1: 219,610 km (0.06 R)
• M2: 697,276 km (0.118 R)
• M3: 1,179,729 km (0.089 R)
• M4: 1,768,097 km (0.117 R)
• M5: 3,818,785 km (0.058 R)
• M6: 4,543,587 km (0.11 R)
• M7: 5,179,228 km (0.071 R)
• M8: 6,269,348 km (0.106 R)
• M9: 8,154,430 km (0.112 R)
• M10: 11,348,943 km (0.11 R)
• M11: 13,015,912 km (0.108 R)
• M12: 15,160,996 km (0.07 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.3

Radius: 11.4

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.28 AU - 3.98 AU

Year: 4612 Days

Day: 11.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,317,936 km

• M1: 143,764 km (0.038 R)
• M2: 531,372 km (0.051 R)
• M3: 1,258,417 km (0.074 R)
• M4: 1,802,056 km (0.084 R)
• M5: 2,527,905 km (0.045 R)
• M6: 4,602,378 km (0.088 R)
• M7: 5,067,478 km (0.12 R)
• M8: 5,589,575 km (0.08 R)
• M9: 6,092,523 km (0.117 R)
• M10: 6,567,945 km (0.084 R)
• M11: 7,250,710 km (0.073 R)
• M12: 7,753,059 km (0.105 R)
• M13: 9,183,065 km (0.077 R)
• M14: 11,989,372 km (0.068 R)
• M15: 21,191,137 km (0.055 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 18,766 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit