🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.49 AU - 0.65 AU

Year: 278 Days

Day: 25.8 Hours

Environment

Temp: -121 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 42,597,713 km

• M1: 308,770 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125

Radius: 8.3

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.83 AU - 0.85 AU

Year: 497 Days

Day: 14.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,597,713 km

• M1: 103,223 km (0.106 R)
• M2: 807,529 km (0.119 R)
• M3: 1,144,274 km (0.04 R)
• M4: 1,515,875 km (0.112 R)
• M5: 1,818,213 km (0.091 R)
• M6: 2,160,642 km (0.12 R)
• M7: 3,434,767 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.8

Radius: 9.6

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.89 AU - 1.15 AU

Year: 665 Days

Day: 10.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,597,713 km

• M1: 119,379 km (0.065 R)
• M2: 420,071 km (0.102 R)
• M3: 744,698 km (0.11 R)
• M4: 1,216,081 km (0.086 R)
• M5: 1,785,899 km (0.076 R)
• M6: 2,418,998 km (0.069 R)
• M7: 3,036,687 km (0.076 R)
• M8: 4,734,324 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.4

Radius: 9.7

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.31 AU - 2.85 AU

Year: 2676 Days

Day: 7 Hours

Environment

Temp: -207 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,597,713 km

• M1: 120,875 km (0.11 R)
• M2: 455,077 km (0.06 R)
• M3: 766,390 km (0.041 R)
• M4: 1,098,946 km (0.096 R)
• M5: 1,500,167 km (0.06 R)
• M6: 2,010,296 km (0.107 R)
• M7: 2,997,792 km (0.066 R)
• M8: 3,608,749 km (0.113 R)
• M9: 4,831,562 km (0.073 R)
• M10: 5,871,417 km (0.108 R)
• M11: 6,606,990 km (0.096 R)
• M12: 6,940,444 km (0.105 R)
• M13: 7,402,701 km (0.077 R)
• M14: 8,165,949 km (0.1 R)
• M15: 9,356,150 km (0.119 R)
• M16: 11,156,860 km (0.088 R)
• M17: 12,960,860 km (0.093 R)
• M18: 13,887,170 km (0.083 R)
• M19: 14,575,321 km (0.031 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.2

Radius: 5.6

Gravity: 17.39 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 6.48 AU - 6.62 AU

Year: 10824 Days

Day: 20.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 157.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,597,713 km

• M1: 77,791 km (0.047 R)
• M2: 668,702 km (0.075 R)
• M3: 1,233,734 km (0.101 R)
• M4: 1,859,202 km (0.044 R)
• M5: 2,758,884 km (0.051 R)
• M6: 3,039,829 km (0.085 R)
• M7: 3,558,634 km (0.038 R)
• M8: 4,245,887 km (0.034 R)
• M9: 4,710,538 km (0.06 R)
• M10: 5,273,175 km (0.113 R)
• M11: 10,578,813 km (0.114 R)
• M12: 16,245,730 km (0.079 R)
• M13: 19,481,981 km (0.079 R)
• M14: 23,298,971 km (0.104 R)
• M15: 25,945,208 km (0.105 R)
• M16: 29,500,551 km (0.098 R)
• M17: 31,394,160 km (0.067 R)
• M18: 32,042,966 km (0.056 R)
• M19: 33,816,898 km (0.093 R)
• M20: 42,088,314 km (0.028 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 307.2

Radius: 4.4

Gravity: 15.87 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.04 AU - 10 AU

Year: 14665 Days

Day: 15.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 42,597,713 km

• M1: 56,548 km (0.102 R)
• M2: 227,538 km (0.101 R)
• M3: 394,789 km (0.087 R)
• M4: 692,489 km (0.083 R)
• M5: 857,645 km (0.087 R)
• M6: 1,294,022 km (0.117 R)
• M7: 1,833,172 km (0.076 R)
• M8: 2,549,297 km (0.051 R)
• M9: 3,484,733 km (0.072 R)
• M10: 3,948,337 km (0.056 R)
• M11: 4,719,364 km (0.103 R)
• M12: 4,903,519 km (0.098 R)
• M13: 5,253,428 km (0.089 R)
• M14: 5,791,981 km (0.068 R)
• M15: 7,586,407 km (0.076 R)
• M16: 9,720,570 km (0.104 R)
• M17: 10,019,018 km (0.064 R)
• M18: 13,592,612 km (0.113 R)
• M19: 14,994,195 km (0.064 R)
• M20: 16,003,232 km (0.1 R)
• M21: 16,985,193 km (0.092 R)
• M22: 19,145,535 km (0.102 R)
• M23: 20,656,324 km (0.083 R)
• M24: 22,159,035 km (0.067 R)
• M25: 22,762,662 km (0.083 R)
• M26: 27,102,197 km (0.073 R)
• M27: 30,989,797 km (0.05 R)
• M28: 31,744,369 km (0.118 R)
• M29: 34,309,524 km (0.087 R)
• M30: 34,769,388 km (0.063 R)
• M31: 35,583,798 km (0.115 R)
• M32: 38,844,733 km (0.047 R)
• M33: 41,775,205 km (0.12 R)
• M34: 43,898,298 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.1

Radius: 5.3

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 8.88 AU - 9.52 AU

Year: 18018 Days

Day: 15.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,597,713 km

• M1: 68,217 km (0.045 R)
• M2: 357,689 km (0.105 R)
• M3: 625,020 km (0.116 R)
• M4: 921,822 km (0.098 R)
• M5: 1,202,767 km (0.04 R)
• M6: 2,273,140 km (0.087 R)
• M7: 2,767,561 km (0.051 R)
• M8: 6,150,268 km (0.066 R)
• M9: 6,800,420 km (0.062 R)
• M10: 7,777,892 km (0.054 R)
• M11: 10,300,861 km (0.11 R)
• M12: 11,478,794 km (0.108 R)
• M13: 12,405,104 km (0.107 R)
• M14: 12,686,797 km (0.112 R)
• M15: 13,916,791 km (0.079 R)
• M16: 15,224,276 km (0.12 R)
• M17: 17,022,891 km (0.045 R)
• M18: 29,248,179 km (0.115 R)
• M19: 30,150,703 km (0.114 R)
• M20: 32,116,718 km (0.071 R)
• M21: 32,969,426 km (0.086 R)
• M22: 41,334,490 km (0.107 R)
• M23: 42,343,079 km (0.055 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: 188 - 12,805 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit