🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.6

Radius: 9.9

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.48 AU - 0.58 AU

Year: 262 Days

Day: 6 Hours

Environment

Temp: -151 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 69,035,937 km

• M1: 123,119 km (0.042 R)
• M2: 556,654 km (0.096 R)
• M3: 1,023,997 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.1

Radius: 14

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.8 AU - 1.08 AU

Year: 618 Days

Day: 12.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,035,937 km

• M1: 176,974 km (0.08 R)
• M2: 736,171 km (0.074 R)
• M3: 1,342,042 km (0.099 R)
• M4: 2,023,610 km (0.11 R)
• M5: 2,701,588 km (0.076 R)
• M6: 3,740,994 km (0.096 R)
• M7: 4,827,074 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.1

Radius: 12.4

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.81 AU - 1.25 AU

Year: 709 Days

Day: 12.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,035,937 km

• M1: 154,535 km (0.103 R)
• M2: 592,707 km (0.112 R)
• M3: 1,017,415 km (0.106 R)
• M4: 1,432,400 km (0.102 R)
• M5: 1,890,767 km (0.044 R)
• M6: 2,679,148 km (0.109 R)
• M7: 3,124,501 km (0.093 R)
• M8: 3,577,334 km (0.101 R)
• M9: 4,666,556 km (0.096 R)
• M10: 5,634,305 km (0.113 R)
• M11: 6,818,073 km (0.087 R)
• M12: 7,422,897 km (0.116 R)
• M13: 8,259,897 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.4

Radius: 13.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.05 AU - 1.31 AU

Year: 869 Days

Day: 12 Hours

Environment

Temp: -189 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,035,937 km

• M1: 164,558 km (0.073 R)
• M2: 611,257 km (0.108 R)
• M3: 1,122,732 km (0.071 R)
• M4: 1,665,922 km (0.102 R)
• M5: 2,883,499 km (0.098 R)
• M6: 3,651,834 km (0.042 R)
• M7: 4,716,821 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.2

Radius: 8.6

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.81 AU - 3.17 AU

Year: 3507 Days

Day: 9.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,035,937 km

• M1: 106,962 km (0.12 R)
• M2: 599,139 km (0.099 R)
• M3: 1,021,903 km (0.113 R)
• M4: 1,695,991 km (0.105 R)
• M5: 2,517,134 km (0.09 R)
• M6: 2,941,543 km (0.098 R)
• M7: 3,546,966 km (0.114 R)
• M8: 3,970,776 km (0.11 R)
• M9: 4,648,903 km (0.086 R)
• M10: 5,069,722 km (0.12 R)
• M11: 5,356,801 km (0.08 R)
• M12: 5,843,742 km (0.106 R)
• M13: 7,710,873 km (0.109 R)
• M14: 8,091,450 km (0.112 R)
• M15: 8,922,017 km (0.079 R)
• M16: 10,431,160 km (0.095 R)
• M17: 11,832,144 km (0.084 R)
• M18: 12,779,249 km (0.097 R)
• M19: 13,733,384 km (0.061 R)
• M20: 14,033,028 km (0.087 R)
• M21: 15,139,005 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.6

Radius: 13

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 4.41 AU - 5.15 AU

Year: 7088 Days

Day: 10.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,035,937 km

• M1: 161,715 km (0.105 R)
• M2: 600,935 km (0.095 R)
• M3: 1,190,051 km (0.083 R)
• M4: 2,023,311 km (0.068 R)
• M5: 2,570,839 km (0.078 R)
• M6: 3,853,791 km (0.059 R)
• M7: 4,448,293 km (0.114 R)
• M8: 5,186,259 km (0.073 R)
• M9: 5,643,580 km (0.061 R)
• M10: 7,355,279 km (0.095 R)
• M11: 7,934,372 km (0.115 R)
• M12: 8,388,551 km (0.117 R)
• M13: 9,061,741 km (0.115 R)
• M14: 10,073,023 km (0.108 R)
• M15: 10,561,161 km (0.076 R)
• M16: 11,346,550 km (0.112 R)
• M17: 11,973,215 km (0.084 R)
• M18: 15,400,951 km (0.107 R)
• M19: 16,716,664 km (0.084 R)
• M20: 19,231,405 km (0.11 R)
• M21: 20,053,445 km (0.087 R)
• M22: 20,614,437 km (0.104 R)
• M23: 29,789,574 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458

Radius: 10.9

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 4.17 AU - 5.95 AU

Year: 7720 Days

Day: 5.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,035,937 km

• M1: 136,284 km (0.078 R)
• M2: 898,634 km (0.056 R)
• M3: 1,409,810 km (0.063 R)
• M4: 2,794,937 km (0.112 R)
• M5: 3,691,178 km (0.08 R)
• M6: 5,366,674 km (0.074 R)
• M7: 7,242,482 km (0.098 R)
• M8: 11,578,277 km (0.065 R)
• M9: 19,937,357 km (0.037 R)
• M10: 32,502,531 km (0.104 R)
• M11: 33,817,347 km (0.088 R)
• M12: 35,167,168 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.3

Radius: 3.5

Gravity: 48.35 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 8.62 AU - 9.56 AU

Year: 18588 Days

Day: 24.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,035,937 km

• M1: 89,011 km (0.12 R)
• M2: 320,887 km (0.097 R)
• M3: 655,538 km (0.096 R)
• M4: 1,121,535 km (0.09 R)
• M5: 1,574,368 km (0.12 R)
• M6: 1,708,856 km (0.082 R)
• M7: 2,455,948 km (0.086 R)
• M8: 2,926,134 km (0.044 R)
• M9: 3,235,652 km (0.118 R)
• M10: 6,164,330 km (0.117 R)
• M11: 8,981,856 km (0.116 R)
• M12: 9,467,301 km (0.063 R)
• M13: 9,744,357 km (0.073 R)
• M14: 10,084,093 km (0.086 R)
• M15: 10,373,116 km (0.11 R)
• M16: 13,091,310 km (0.104 R)
• M17: 15,857,973 km (0.066 R)
• M18: 17,792,423 km (0.109 R)
• M19: 21,356,442 km (0.075 R)
• M20: 22,122,084 km (0.108 R)
• M21: 29,383,116 km (0.1 R)
• M22: 33,163,305 km (0.063 R)
• M23: 33,930,443 km (0.075 R)
• M24: 35,367,629 km (0.102 R)
• M25: 38,643,075 km (0.07 R)
• M26: 42,115,092 km (0.115 R)
• M27: 42,563,137 km (0.102 R)
• M28: 55,002,799 km (0.034 R)
• M29: 55,896,796 km (0.111 R)
• M30: 61,274,540 km (0.12 R)
• M31: 66,784,080 km (0.108 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: 184 - 18,227 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit