🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.5

Radius: 8.1

Gravity: 14.87 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.56 AU - 0.6 AU

Year: 300 Days

Day: 14.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,033,229 km

• M1: 100,679 km (0.107 R)
• M2: 489,634 km (0.097 R)
• M3: 749,934 km (0.108 R)
• M4: 1,075,609 km (0.05 R)
• M5: 1,813,276 km (0.086 R)
• M6: 2,151,217 km (0.084 R)
• M7: 2,742,129 km (0.095 R)
• M8: 3,167,585 km (0.077 R)
• M9: 3,506,424 km (0.105 R)
• M10: 3,983,043 km (0.071 R)
• M11: 4,529,824 km (0.09 R)
• M12: 5,140,931 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.5

Radius: 12.5

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.89 AU - 1.31 AU

Year: 782 Days

Day: 7.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,033,229 km

• M1: 155,432 km (0.047 R)
• M2: 585,376 km (0.09 R)
• M3: 1,046,437 km (0.094 R)
• M4: 1,747,752 km (0.083 R)
• M5: 2,362,001 km (0.055 R)
• M6: 2,889,632 km (0.075 R)
• M7: 3,695,815 km (0.114 R)
• M8: 6,036,424 km (0.065 R)
• M9: 7,121,607 km (0.089 R)
• M10: 8,030,264 km (0.089 R)
• M11: 8,486,837 km (0.093 R)
• M12: 9,369,315 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.7

Radius: 9.9

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.99 AU - 1.23 AU

Year: 793 Days

Day: 13.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,033,229 km

• M1: 123,119 km (0.096 R)
• M2: 442,959 km (0.103 R)
• M3: 772,972 km (0.054 R)
• M4: 1,385,426 km (0.116 R)
• M5: 2,046,499 km (0.117 R)
• M6: 2,575,178 km (0.095 R)
• M7: 3,101,762 km (0.086 R)
• M8: 3,466,332 km (0.106 R)
• M9: 4,158,372 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.7

Radius: 10.6

Gravity: 8.83 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.37 AU - 1.77 AU

Year: 1334 Days

Day: 7.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,033,229 km

• M1: 131,796 km (0.077 R)
• M2: 463,604 km (0.093 R)
• M3: 895,642 km (0.108 R)
• M4: 2,390,724 km (0.115 R)
• M5: 3,162,649 km (0.09 R)
• M6: 3,879,522 km (0.036 R)
• M7: 4,821,988 km (0.108 R)
• M8: 6,098,956 km (0.103 R)
• M9: 7,023,770 km (0.086 R)
• M10: 7,451,620 km (0.046 R)
• M11: 8,271,565 km (0.108 R)
• M12: 8,932,788 km (0.079 R)
• M13: 9,435,586 km (0.097 R)
• M14: 10,258,973 km (0.088 R)
• M15: 11,022,521 km (0.113 R)
• M16: 11,491,211 km (0.062 R)
• M17: 12,977,765 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.5

Radius: 12.8

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.53 AU - 1.63 AU

Year: 1347 Days

Day: 5 Hours

Environment

Temp: -184 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 39,033,229 km

• M1: 159,172 km (0.075 R)
• M2: 658,679 km (0.101 R)
• M3: 1,357,451 km (0.064 R)
• M4: 1,827,488 km (0.093 R)
• M5: 2,830,392 km (0.099 R)
• M6: 3,455,711 km (0.051 R)
• M7: 6,208,012 km (0.081 R)
• M8: 6,635,862 km (0.11 R)
• M9: 7,479,594 km (0.109 R)
• M10: 8,496,860 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.2

Radius: 14.5

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.11 AU - 4.83 AU

Year: 5365 Days

Day: 13.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 39,033,229 km

• M1: 181,013 km (0.105 R)
• M2: 1,011,880 km (0.112 R)
• M3: 2,234,095 km (0.105 R)
• M4: 2,816,180 km (0.061 R)
• M5: 3,697,760 km (0.085 R)
• M6: 4,571,412 km (0.081 R)
• M7: 5,760,715 km (0.103 R)
• M8: 7,147,337 km (0.052 R)
• M9: 9,457,727 km (0.037 R)
• M10: 10,996,042 km (0.07 R)
• M11: 12,280,788 km (0.11 R)
• M12: 16,360,622 km (0.091 R)
• M13: 17,183,260 km (0.066 R)
• M14: 19,465,376 km (0.097 R)
• M15: 21,267,731 km (0.113 R)
• M16: 22,787,795 km (0.079 R)
• M17: 25,119,278 km (0.116 R)
• M18: 26,471,642 km (0.07 R)
• M19: 32,665,742 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371

Radius: 13.6

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.94 AU - 4.1 AU

Year: 5467 Days

Day: 11 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 39,033,229 km

• M1: 169,644 km (0.064 R)
• M2: 720,763 km (0.055 R)
• M3: 1,696,889 km (0.077 R)
• M4: 2,232,599 km (0.091 R)
• M5: 2,662,543 km (0.069 R)
• M6: 3,393,927 km (0.042 R)
• M7: 4,416,877 km (0.094 R)
• M8: 6,689,718 km (0.104 R)
• M9: 7,462,391 km (0.1 R)
• M10: 9,147,611 km (0.1 R)
• M11: 10,182,678 km (0.065 R)
• M12: 11,118,263 km (0.091 R)
• M13: 12,485,289 km (0.081 R)
• M14: 13,557,157 km (0.104 R)
• M15: 15,387,637 km (0.093 R)
• M16: 15,995,453 km (0.101 R)
• M17: 16,561,980 km (0.087 R)
• M18: 17,318,497 km (0.032 R)
• M19: 18,342,345 km (0.109 R)
• M20: 19,534,041 km (0.067 R)
• M21: 21,044,980 km (0.043 R)
• M22: 22,845,240 km (0.084 R)
• M23: 25,658,129 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 292.8

Radius: 4.6

Gravity: 13.84 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 5.67 AU - 7.33 AU

Year: 11240 Days

Day: 20.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,033,229 km

• M1: 57,296 km (0.104 R)
• M2: 337,343 km (0.113 R)
• M3: 616,493 km (0.07 R)
• M4: 824,434 km (0.106 R)
• M5: 3,070,347 km (0.107 R)
• M6: 4,870,907 km (0.066 R)
• M7: 5,350,069 km (0.106 R)
• M8: 5,664,972 km (0.088 R)
• M9: 6,262,915 km (0.097 R)
• M10: 6,901,997 km (0.074 R)
• M11: 7,161,848 km (0.089 R)
• M12: 7,583,565 km (0.118 R)
• M13: 9,664,471 km (0.053 R)
• M14: 12,312,503 km (0.092 R)
• M15: 27,534,086 km (0.078 R)
• M16: 28,093,583 km (0.094 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 10,725 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit