🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.3

Radius: 9.7

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.72 AU - 0.88 AU

Year: 477 Days

Day: 10.7 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,710,660 km

• M1: 120,725 km (0.103 R)
• M2: 484,398 km (0.11 R)
• M3: 1,167,312 km (0.072 R)
• M4: 1,487,302 km (0.1 R)
• M5: 2,037,673 km (0.106 R)
• M6: 2,464,775 km (0.109 R)
• M7: 2,980,738 km (0.096 R)
• M8: 3,556,241 km (0.059 R)
• M9: 3,907,048 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.6

Radius: 14.7

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.94 AU - 1.54 AU

Year: 921 Days

Day: 8.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,710,660 km

• M1: 182,809 km (0.116 R)
• M2: 702,960 km (0.119 R)
• M3: 1,187,209 km (0.053 R)
• M4: 1,665,024 km (0.056 R)
• M5: 2,622,002 km (0.094 R)
• M6: 3,097,723 km (0.108 R)
• M7: 3,736,506 km (0.054 R)
• M8: 4,260,099 km (0.038 R)
• M9: 6,091,177 km (0.085 R)
• M10: 6,548,796 km (0.12 R)
• M11: 7,266,567 km (0.119 R)
• M12: 7,858,077 km (0.097 R)
• M13: 8,375,237 km (0.052 R)
• M14: 9,025,988 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.2

Radius: 13

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.21 AU - 1.81 AU

Year: 1237 Days

Day: 7.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,710,660 km

• M1: 162,762 km (0.029 R)
• M2: 599,738 km (0.12 R)
• M3: 1,010,982 km (0.113 R)
• M4: 2,851,784 km (0.07 R)
• M5: 3,602,766 km (0.093 R)
• M6: 4,972,633 km (0.057 R)
• M7: 5,668,563 km (0.071 R)
• M8: 6,785,161 km (0.088 R)
• M9: 7,827,858 km (0.09 R)
• M10: 9,092,259 km (0.103 R)
• M11: 9,727,003 km (0.063 R)
• M12: 10,652,116 km (0.112 R)
• M13: 11,392,327 km (0.083 R)
• M14: 11,845,758 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.6

Radius: 11.5

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.37 AU - 2.19 AU

Year: 1584 Days

Day: 12.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,710,660 km

• M1: 143,165 km (0.094 R)
• M2: 530,773 km (0.042 R)
• M3: 1,085,482 km (0.117 R)
• M4: 1,451,548 km (0.043 R)
• M5: 1,869,674 km (0.056 R)
• M6: 3,090,094 km (0.026 R)
• M7: 4,421,365 km (0.066 R)
• M8: 5,075,407 km (0.107 R)
• M9: 5,448,504 km (0.08 R)
• M10: 6,731,306 km (0.043 R)
• M11: 7,264,622 km (0.098 R)
• M12: 8,087,710 km (0.083 R)
• M13: 9,130,706 km (0.052 R)
• M14: 9,585,484 km (0.082 R)
• M15: 11,041,071 km (0.103 R)
• M16: 11,520,233 km (0.084 R)
• M17: 12,323,424 km (0.118 R)
• M18: 13,082,035 km (0.047 R)
• M19: 14,342,845 km (0.069 R)
• M20: 14,736,437 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.7

Radius: 11.6

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.29 AU - 3.67 AU

Year: 3430 Days

Day: 5.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,710,660 km

• M1: 144,212 km (0.099 R)
• M2: 590,014 km (0.092 R)
• M3: 1,162,525 km (0.094 R)
• M4: 1,831,676 km (0.068 R)
• M5: 3,416,217 km (0.099 R)
• M6: 4,217,314 km (0.095 R)
• M7: 5,798,114 km (0.057 R)
• M8: 7,511,309 km (0.12 R)
• M9: 7,979,251 km (0.086 R)
• M10: 8,502,245 km (0.091 R)
• M11: 9,462,963 km (0.108 R)
• M12: 10,009,444 km (0.093 R)
• M13: 10,576,869 km (0.109 R)
• M14: 12,593,747 km (0.075 R)
• M15: 13,159,526 km (0.052 R)
• M16: 15,274,541 km (0.074 R)
• M17: 16,246,927 km (0.078 R)
• M18: 17,548,728 km (0.065 R)

Asteroid Belt

Center: 5.99 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.3

Radius: 3.5

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 8.73 AU - 9.27 AU

Year: 18005 Days

Day: 18.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,710,660 km

• M1: 204,949 km (0.067 R)
• M2: 605,273 km (0.092 R)
• M3: 883,226 km (0.039 R)
• M4: 1,659,040 km (0.099 R)
• M5: 2,444,728 km (0.083 R)
• M6: 5,142,576 km (0.075 R)
• M7: 6,098,507 km (0.068 R)
• M8: 6,761,525 km (0.117 R)
• M9: 8,521,544 km (0.072 R)
• M10: 8,734,122 km (0.104 R)
• M11: 10,038,017 km (0.084 R)
• M12: 10,371,172 km (0.053 R)
• M13: 10,613,520 km (0.032 R)
• M14: 15,712,414 km (0.065 R)
• M15: 17,286,932 km (0.061 R)
• M16: 20,516,750 km (0.107 R)
• M17: 23,208,165 km (0.085 R)
• M18: 25,069,462 km (0.11 R)
• M19: 25,770,328 km (0.06 R)
• M20: 26,036,462 km (0.05 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: 332 - 12,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit