🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.4

Radius: 13.3

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.5 AU - 0.74 AU

Year: 337 Days

Day: 10.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,284,087 km

• M1: 165,605 km (0.097 R)
• M2: 619,634 km (0.089 R)
• M3: 1,135,298 km (0.101 R)
• M4: 1,726,808 km (0.112 R)
• M5: 2,492,001 km (0.069 R)
• M6: 3,081,267 km (0.034 R)
• M7: 4,293,309 km (0.084 R)
• M8: 4,713,231 km (0.096 R)
• M9: 5,284,844 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.8

Radius: 14.2

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.69 AU - 0.99 AU

Year: 531 Days

Day: 8.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,284,087 km

• M1: 176,675 km (0.05 R)
• M2: 624,721 km (0.088 R)
• M3: 1,238,820 km (0.095 R)
• M4: 1,688,960 km (0.109 R)
• M5: 2,334,624 km (0.113 R)
• M6: 4,017,750 km (0.075 R)
• M7: 4,521,296 km (0.075 R)
• M8: 5,018,560 km (0.111 R)
• M9: 5,466,605 km (0.116 R)
• M10: 6,254,388 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69

Radius: 14.4

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.9 AU - 1.14 AU

Year: 711 Days

Day: 11.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,284,087 km

• M1: 179,069 km (0.091 R)
• M2: 680,371 km (0.069 R)
• M3: 1,291,329 km (0.095 R)
• M4: 1,768,247 km (0.08 R)
• M5: 2,475,695 km (0.041 R)
• M6: 3,698,059 km (0.039 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.3

Radius: 11.5

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.86 AU - 2.94 AU

Year: 3409 Days

Day: 11.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,284,087 km

• M1: 143,464 km (0.058 R)
• M2: 514,617 km (0.118 R)
• M3: 1,354,160 km (0.118 R)
• M4: 1,928,017 km (0.085 R)
• M5: 3,013,649 km (0.102 R)
• M6: 4,124,862 km (0.116 R)
• M7: 4,902,921 km (0.07 R)
• M8: 6,376,310 km (0.083 R)
• M9: 7,047,705 km (0.093 R)
• M10: 7,669,434 km (0.107 R)
• M11: 8,126,156 km (0.081 R)
• M12: 8,705,100 km (0.066 R)
• M13: 10,137,500 km (0.117 R)
• M14: 11,052,739 km (0.113 R)
• M15: 12,461,203 km (0.096 R)
• M16: 14,619,452 km (0.082 R)
• M17: 15,119,707 km (0.118 R)
• M18: 16,474,017 km (0.04 R)
• M19: 18,947,917 km (0.059 R)
• M20: 19,906,091 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.8

Radius: 8.8

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.21 AU - 3.25 AU

Year: 4007 Days

Day: 6.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,284,087 km

• M1: 109,506 km (0.085 R)
• M2: 405,261 km (0.098 R)
• M3: 971,040 km (0.077 R)
• M4: 1,490,294 km (0.072 R)
• M5: 2,793,142 km (0.08 R)
• M6: 3,878,624 km (0.099 R)
• M7: 4,750,780 km (0.111 R)
• M8: 5,263,900 km (0.082 R)
• M9: 5,555,167 km (0.097 R)
• M10: 8,485,939 km (0.117 R)
• M11: 9,915,646 km (0.111 R)
• M12: 10,987,365 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.9

Radius: 11.6

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.05 AU - 4.65 AU

Year: 5214 Days

Day: 14.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,284,087 km

• M1: 153,039 km (0.087 R)
• M2: 771,626 km (0.053 R)
• M3: 1,483,861 km (0.094 R)
• M4: 1,903,035 km (0.091 R)
• M5: 2,369,929 km (0.11 R)
• M6: 2,931,071 km (0.049 R)
• M7: 3,516,597 km (0.047 R)
• M8: 4,922,967 km (0.116 R)
• M9: 5,637,297 km (0.101 R)
• M10: 8,538,448 km (0.066 R)
• M11: 9,735,979 km (0.048 R)
• M12: 19,370,979 km (0.083 R)
• M13: 20,866,809 km (0.117 R)
• M14: 27,793,489 km (0.032 R)
• M15: 28,560,627 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 910.8

Radius: 7.7

Gravity: 15.36 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.89 AU - 9.41 AU

Year: 16060 Days

Day: 20.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,284,087 km

• M1: 95,743 km (0.108 R)
• M2: 438,023 km (0.077 R)
• M3: 764,296 km (0.074 R)
• M4: 1,008,888 km (0.091 R)
• M5: 1,278,763 km (0.081 R)
• M6: 2,417,202 km (0.112 R)
• M7: 2,883,200 km (0.118 R)
• M8: 3,491,913 km (0.082 R)
• M9: 5,107,571 km (0.095 R)
• M10: 5,444,016 km (0.108 R)
• M11: 6,203,225 km (0.111 R)
• M12: 7,260,583 km (0.097 R)
• M13: 8,693,132 km (0.096 R)
• M14: 9,119,337 km (0.091 R)
• M15: 9,784,748 km (0.1 R)
• M16: 12,436,669 km (0.099 R)
• M17: 18,930,863 km (0.062 R)
• M18: 19,647,287 km (0.042 R)
• M19: 22,198,529 km (0.105 R)
• M20: 22,495,032 km (0.091 R)
• M21: 23,400,249 km (0.085 R)
• M22: 27,605,145 km (0.073 R)
• M23: 27,948,024 km (0.098 R)
• M24: 29,945,155 km (0.068 R)
• M25: 32,035,486 km (0.059 R)
• M26: 41,223,040 km (0.072 R)
• M27: 45,215,358 km (0.11 R)
• M28: 52,720,982 km (0.095 R)
• M29: 53,958,606 km (0.102 R)
• M30: 57,787,114 km (0.054 R)
• M31: 59,102,528 km (0.077 R)
• M32: 59,672,347 km (0.115 R)
• M33: 61,209,764 km (0.109 R)
• M34: 65,168,423 km (0.026 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 15,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit