🌌 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 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.54 AU - 0.7 AU

Year: 310 Days

Day: 24.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.8

Radius: 8.8

Gravity: 12.63 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.97 AU - 1.15 AU

Year: 694 Days

Day: 9 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,202,278 km

• M1: 109,506 km (0.083 R)
• M2: 401,670 km (0.114 R)
• M3: 820,395 km (0.119 R)
• M4: 1,188,256 km (0.109 R)
• M5: 2,153,162 km (0.114 R)
• M6: 2,492,001 km (0.079 R)
• M7: 3,197,804 km (0.116 R)
• M8: 3,728,577 km (0.081 R)
• M9: 4,316,946 km (0.051 R)
• M10: 4,876,891 km (0.094 R)
• M11: 5,561,301 km (0.106 R)
• M12: 6,456,943 km (0.076 R)
• M13: 6,739,234 km (0.068 R)
• M14: 7,927,191 km (0.113 R)
• M15: 8,276,353 km (0.115 R)
• M16: 8,609,956 km (0.036 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.1

Radius: 10.1

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.93 AU - 1.31 AU

Year: 754 Days

Day: 14.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 119.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,202,278 km

• M1: 125,812 km (0.112 R)
• M2: 598,391 km (0.117 R)
• M3: 920,775 km (0.074 R)
• M4: 1,378,395 km (0.099 R)
• M5: 2,042,609 km (0.117 R)
• M6: 2,437,398 km (0.031 R)
• M7: 2,833,683 km (0.092 R)
• M8: 3,152,177 km (0.113 R)
• M9: 3,466,482 km (0.114 R)
• M10: 4,288,223 km (0.074 R)
• M11: 4,815,705 km (0.041 R)
• M12: 5,697,734 km (0.073 R)
• M13: 6,251,097 km (0.119 R)
• M14: 6,817,474 km (0.069 R)
• M15: 7,878,572 km (0.103 R)
• M16: 8,618,483 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.3

Radius: 9.3

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.03 AU - 1.31 AU

Year: 805 Days

Day: 8.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,202,278 km

• M1: 115,639 km (0.097 R)
• M2: 406,757 km (0.114 R)
• M3: 731,234 km (0.053 R)
• M4: 1,056,759 km (0.098 R)
• M5: 1,533,528 km (0.047 R)
• M6: 1,906,475 km (0.118 R)
• M7: 2,360,355 km (0.099 R)
• M8: 2,908,931 km (0.091 R)
• M9: 3,311,648 km (0.093 R)
• M10: 3,694,170 km (0.089 R)
• M11: 4,747,788 km (0.05 R)
• M12: 5,075,257 km (0.118 R)
• M13: 5,718,229 km (0.12 R)
• M14: 6,455,896 km (0.091 R)
• M15: 8,047,468 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.6

Radius: 12.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.57 AU - 2.15 AU

Year: 1613 Days

Day: 7.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,202,278 km

• M1: 160,369 km (0.112 R)
• M2: 633,397 km (0.072 R)
• M3: 1,484,160 km (0.084 R)
• M4: 2,832,037 km (0.106 R)
• M5: 3,642,259 km (0.119 R)
• M6: 4,031,812 km (0.069 R)
• M7: 4,430,640 km (0.111 R)
• M8: 6,467,415 km (0.105 R)
• M9: 7,843,566 km (0.1 R)
• M10: 9,851,768 km (0.1 R)
• M11: 10,479,032 km (0.095 R)
• M12: 11,667,736 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.3

Radius: 6.7

Gravity: 14.24 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 8.53 AU - 13.77 AU

Year: 23673 Days

Day: 15.2 Hours

Environment

Temp: -241 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,202,278 km

• M1: 83,326 km (0.116 R)
• M2: 336,745 km (0.089 R)
• M3: 1,068,428 km (0.115 R)
• M4: 1,381,985 km (0.115 R)
• M5: 2,239,031 km (0.088 R)
• M6: 2,858,367 km (0.092 R)
• M7: 3,264,525 km (0.096 R)
• M8: 4,716,671 km (0.043 R)
• M9: 8,226,686 km (0.115 R)
• M10: 8,494,466 km (0.098 R)
• M11: 8,713,029 km (0.108 R)
• M12: 9,802,400 km (0.094 R)
• M13: 10,473,197 km (0.118 R)
• M14: 12,669,144 km (0.1 R)
• M15: 12,882,920 km (0.104 R)
• M16: 16,981,153 km (0.048 R)
• M17: 20,278,739 km (0.115 R)
• M18: 28,349,395 km (0.086 R)
• M19: 33,221,947 km (0.095 R)
• M20: 34,452,539 km (0.075 R)
• M21: 38,624,375 km (0.114 R)
• M22: 56,149,167 km (0.114 R)
• M23: 61,488,614 km (0.088 R)
• M24: 67,589,664 km (0.099 R)
• M25: 68,024,845 km (0.074 R)
• M26: 74,776,645 km (0.119 R)
• M27: 75,009,120 km (0.097 R)
• M28: 76,413,994 km (0.103 R)
• M29: 78,553,992 km (0.09 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: 485 - 20,198 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit