🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.2

Radius: 9.9

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.58 AU - 0.64 AU

Year: 323 Days

Day: 10.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,478,086 km

• M1: 123,119 km (0.117 R)
• M2: 531,372 km (0.034 R)
• M3: 852,109 km (0.099 R)
• M4: 1,183,918 km (0.092 R)
• M5: 1,610,421 km (0.11 R)
• M6: 2,621,403 km (0.084 R)
• M7: 3,078,724 km (0.112 R)
• M8: 3,612,489 km (0.078 R)
• M9: 3,920,960 km (0.096 R)
• M10: 4,328,016 km (0.119 R)
• M11: 4,676,579 km (0.091 R)
• M12: 5,104,579 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.6

Radius: 10.5

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.56 AU - 0.68 AU

Year: 331 Days

Day: 14 Hours

Environment

Temp: -158 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,478,086 km

• M1: 130,599 km (0.11 R)
• M2: 609,462 km (0.093 R)
• M3: 968,796 km (0.108 R)
• M4: 1,314,217 km (0.113 R)
• M5: 1,897,350 km (0.056 R)
• M6: 2,409,573 km (0.081 R)
• M7: 2,770,553 km (0.109 R)
• M8: 3,237,597 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.9

Radius: 11.4

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.5 AU - 0.76 AU

Year: 339 Days

Day: 6.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,478,086 km

• M1: 141,819 km (0.083 R)
• M2: 530,175 km (0.103 R)
• M3: 937,979 km (0.09 R)
• M4: 1,344,436 km (0.105 R)
• M5: 1,786,348 km (0.106 R)
• M6: 2,645,190 km (0.061 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.1

Radius: 14.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.6 AU - 0.74 AU

Year: 372 Days

Day: 5.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,478,086 km

• M1: 181,612 km (0.056 R)
• M2: 645,066 km (0.105 R)
• M3: 1,267,244 km (0.086 R)
• M4: 2,062,356 km (0.046 R)
• M5: 2,641,450 km (0.034 R)
• M6: 3,477,851 km (0.114 R)
• M7: 4,107,509 km (0.066 R)
• M8: 4,798,053 km (0.078 R)
• M9: 5,264,349 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.6

Radius: 13.7

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.74 AU - 1.8 AU

Year: 1597 Days

Day: 8.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,478,086 km

• M1: 170,542 km (0.098 R)
• M2: 823,087 km (0.07 R)
• M3: 1,346,082 km (0.069 R)
• M4: 2,201,931 km (0.059 R)
• M5: 2,886,042 km (0.061 R)
• M6: 3,439,853 km (0.071 R)
• M7: 3,991,421 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.3

Radius: 11.1

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.54 AU - 3.32 AU

Year: 3402 Days

Day: 12.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,478,086 km

• M1: 140,173 km (0.076 R)
• M2: 733,030 km (0.119 R)
• M3: 1,129,165 km (0.069 R)
• M4: 3,003,476 km (0.075 R)
• M5: 4,804,036 km (0.104 R)
• M6: 11,115,421 km (0.119 R)
• M7: 11,746,126 km (0.104 R)
• M8: 12,669,144 km (0.113 R)
• M9: 13,125,268 km (0.043 R)
• M10: 13,545,190 km (0.083 R)
• M11: 17,401,823 km (0.103 R)
• M12: 19,429,622 km (0.093 R)
• M13: 20,719,455 km (0.049 R)
• M14: 21,675,086 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236.1

Radius: 7.7

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 8.69 AU - 9.73 AU

Year: 18957 Days

Day: 23.3 Hours

Environment

Temp: -244 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,478,086 km

• M1: 95,892 km (0.108 R)
• M2: 459,415 km (0.08 R)
• M3: 754,123 km (0.041 R)
• M4: 2,010,296 km (0.082 R)
• M5: 2,848,942 km (0.106 R)
• M6: 3,929,786 km (0.107 R)
• M7: 4,872,253 km (0.071 R)
• M8: 7,114,127 km (0.088 R)
• M9: 7,488,570 km (0.109 R)
• M10: 11,474,157 km (0.116 R)
• M11: 11,931,477 km (0.099 R)
• M12: 13,314,360 km (0.12 R)
• M13: 13,819,403 km (0.113 R)
• M14: 16,039,136 km (0.103 R)
• M15: 17,871,410 km (0.098 R)
• M16: 22,829,981 km (0.096 R)
• M17: 23,280,421 km (0.062 R)
• M18: 26,502,310 km (0.09 R)
• M19: 26,899,941 km (0.069 R)
• M20: 28,116,471 km (0.1 R)
• M21: 29,263,587 km (0.12 R)
• M22: 30,441,671 km (0.085 R)
• M23: 31,539,719 km (0.082 R)
• M24: 31,986,269 km (0.057 R)
• M25: 33,931,191 km (0.12 R)
• M26: 35,590,979 km (0.096 R)
• M27: 38,561,245 km (0.114 R)
• M28: 40,499,285 km (0.072 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 11,418 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit