🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605

Radius: 9.5

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.67 AU - 0.73 AU

Year: 372 Days

Day: 12.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,313,245 km

• M1: 118,182 km (0.073 R)
• M2: 455,974 km (0.112 R)
• M3: 763,398 km (0.117 R)
• M4: 1,211,144 km (0.051 R)
• M5: 1,645,427 km (0.063 R)
• M6: 1,972,598 km (0.102 R)
• M7: 2,597,767 km (0.107 R)
• M8: 2,982,832 km (0.03 R)
• M9: 3,474,560 km (0.099 R)
• M10: 3,918,567 km (0.04 R)
• M11: 4,523,241 km (0.04 R)
• M12: 4,819,295 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 802.3

Radius: 11.1

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.73 AU - 0.83 AU

Year: 438 Days

Day: 11.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,313,245 km

• M1: 138,079 km (0.117 R)
• M2: 488,437 km (0.047 R)
• M3: 873,801 km (0.108 R)
• M4: 1,239,568 km (0.098 R)
• M5: 1,629,869 km (0.078 R)
• M6: 2,326,396 km (0.102 R)
• M7: 2,718,044 km (0.115 R)
• M8: 3,474,261 km (0.101 R)
• M9: 4,029,867 km (0.116 R)
• M10: 4,749,882 km (0.113 R)
• M11: 6,059,761 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.3

Radius: 14.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.94 AU - 1.56 AU

Year: 889 Days

Day: 13 Hours

Environment

Temp: -175 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,313,245 km

• M1: 184,005 km (0.091 R)
• M2: 807,380 km (0.114 R)
• M3: 1,538,315 km (0.048 R)
• M4: 2,116,959 km (0.081 R)
• M5: 2,600,310 km (0.106 R)
• M6: 3,455,711 km (0.07 R)
• M7: 4,158,821 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.8

Radius: 10

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.3 AU - 1.62 AU

Year: 1122 Days

Day: 8.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,313,245 km

• M1: 124,316 km (0.032 R)
• M2: 551,567 km (0.033 R)
• M3: 872,455 km (0.062 R)
• M4: 1,301,053 km (0.11 R)
• M5: 1,726,210 km (0.069 R)
• M6: 2,134,014 km (0.087 R)
• M7: 2,581,311 km (0.089 R)
• M8: 3,347,402 km (0.114 R)
• M9: 3,776,000 km (0.092 R)
• M10: 4,172,135 km (0.073 R)
• M11: 4,894,543 km (0.077 R)
• M12: 7,089,443 km (0.039 R)
• M13: 7,514,750 km (0.03 R)
• M14: 7,851,495 km (0.086 R)
• M15: 8,306,871 km (0.105 R)
• M16: 8,893,893 km (0.086 R)
• M17: 10,691,461 km (0.115 R)
• M18: 11,051,692 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.2

Radius: 9.4

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.56 AU - 5.62 AU

Year: 8403 Days

Day: 14.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,313,245 km

• M1: 118,482 km (0.102 R)
• M2: 508,334 km (0.065 R)
• M3: 990,936 km (0.11 R)
• M4: 1,419,833 km (0.075 R)
• M5: 1,985,613 km (0.062 R)
• M6: 3,404,249 km (0.091 R)
• M7: 3,778,693 km (0.096 R)
• M8: 4,808,225 km (0.079 R)
• M9: 5,373,107 km (0.103 R)
• M10: 6,354,170 km (0.036 R)
• M11: 6,778,579 km (0.109 R)
• M12: 7,962,795 km (0.108 R)
• M13: 10,638,054 km (0.036 R)
• M14: 12,285,576 km (0.117 R)
• M15: 12,778,052 km (0.114 R)
• M16: 13,397,985 km (0.057 R)
• M17: 17,272,720 km (0.1 R)
• M18: 17,683,366 km (0.083 R)
• M19: 19,686,332 km (0.107 R)
• M20: 20,059,279 km (0.115 R)
• M21: 20,361,168 km (0.082 R)
• M22: 22,885,632 km (0.047 R)
• M23: 24,910,888 km (0.101 R)
• M24: 26,506,200 km (0.105 R)
• M25: 28,452,169 km (0.108 R)
• M26: 30,991,144 km (0.108 R)
• M27: 31,801,815 km (0.072 R)
• M28: 32,730,668 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.2

Radius: 3.7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.84 AU - 10.98 AU

Year: 18353 Days

Day: 23.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,313,245 km

• M1: 46,974 km (0.119 R)
• M2: 314,006 km (0.112 R)
• M3: 995,574 km (0.118 R)
• M4: 1,153,100 km (0.098 R)
• M5: 2,599,861 km (0.097 R)
• M6: 3,094,582 km (0.115 R)
• M7: 4,449,789 km (0.103 R)
• M8: 5,154,095 km (0.102 R)
• M9: 5,681,278 km (0.054 R)
• M10: 5,986,009 km (0.112 R)
• M11: 6,243,467 km (0.088 R)
• M12: 8,048,066 km (0.025 R)
• M13: 10,872,624 km (0.09 R)
• M14: 19,528,057 km (0.071 R)
• M15: 20,030,257 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 233.5

Radius: 8

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.42 AU - 9.82 AU

Year: 18971 Days

Day: 18.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,313,245 km

• M1: 99,483 km (0.094 R)
• M2: 369,357 km (0.099 R)
• M3: 978,968 km (0.053 R)
• M4: 1,793,379 km (0.103 R)
• M5: 2,469,113 km (0.04 R)
• M6: 3,948,337 km (0.118 R)
• M7: 4,612,551 km (0.077 R)
• M8: 4,955,579 km (0.055 R)
• M9: 6,236,137 km (0.112 R)
• M10: 8,713,478 km (0.094 R)
• M11: 9,734,483 km (0.071 R)
• M12: 9,988,949 km (0.081 R)
• M13: 19,214,949 km (0.116 R)
• M14: 24,216,604 km (0.12 R)
• M15: 25,158,622 km (0.089 R)
• M16: 27,518,678 km (0.081 R)
• M17: 31,551,089 km (0.099 R)
• M18: 33,245,733 km (0.11 R)
• M19: 33,940,316 km (0.111 R)
• M20: 34,526,441 km (0.067 R)
• M21: 38,820,049 km (0.103 R)
• M22: 41,426,642 km (0.102 R)
• M23: 42,501,204 km (0.078 R)
• M24: 49,491,613 km (0.094 R)
• M25: 50,093,894 km (0.051 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 278 - 18,846 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit