🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.8

Radius: 9.9

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.94 AU - 1.3 AU

Year: 765 Days

Day: 5.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 88.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,975,724 km

• M1: 123,119 km (0.043 R)
• M2: 460,313 km (0.119 R)
• M3: 829,071 km (0.105 R)
• M4: 1,164,919 km (0.075 R)
• M5: 1,482,664 km (0.059 R)
• M6: 1,895,555 km (0.067 R)
• M7: 2,341,805 km (0.089 R)
• M8: 2,772,348 km (0.102 R)
• M9: 3,241,935 km (0.113 R)
• M10: 4,100,178 km (0.095 R)
• M11: 4,886,764 km (0.09 R)
• M12: 5,250,736 km (0.093 R)
• M13: 5,870,819 km (0.106 R)
• M14: 6,647,830 km (0.079 R)
• M15: 7,829,504 km (0.119 R)
• M16: 8,405,904 km (0.106 R)
• M17: 8,823,432 km (0.108 R)
• M18: 9,227,496 km (0.036 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 362.5

Radius: 8.4

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.96 AU - 1.48 AU

Year: 870 Days

Day: 5.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,975,724 km

• M1: 105,915 km (0.077 R)
• M2: 536,308 km (0.05 R)
• M3: 971,638 km (0.118 R)
• M4: 1,408,913 km (0.106 R)
• M5: 1,710,053 km (0.087 R)
• M6: 2,100,504 km (0.068 R)
• M7: 2,486,167 km (0.109 R)
• M8: 2,825,904 km (0.103 R)
• M9: 3,439,554 km (0.086 R)
• M10: 3,778,244 km (0.062 R)
• M11: 4,274,610 km (0.073 R)
• M12: 4,618,535 km (0.088 R)
• M13: 5,065,833 km (0.094 R)
• M14: 7,042,170 km (0.052 R)
• M15: 7,323,713 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.1

Radius: 12.3

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.39 AU - 1.75 AU

Year: 1270 Days

Day: 14.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,975,724 km

• M1: 153,039 km (0.091 R)
• M2: 608,714 km (0.067 R)
• M3: 1,256,473 km (0.103 R)
• M4: 1,673,402 km (0.107 R)
• M5: 2,823,211 km (0.106 R)
• M6: 3,644,354 km (0.112 R)
• M7: 4,219,857 km (0.11 R)
• M8: 5,023,945 km (0.062 R)
• M9: 5,493,084 km (0.098 R)
• M10: 7,874,982 km (0.108 R)
• M11: 8,868,162 km (0.097 R)
• M12: 10,003,610 km (0.097 R)
• M13: 10,749,205 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.9

Radius: 11

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 4.26 AU - 6.34 AU

Year: 7878 Days

Day: 13.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,975,724 km

• M1: 153,936 km (0.107 R)
• M2: 520,451 km (0.095 R)
• M3: 1,032,973 km (0.059 R)
• M4: 1,946,867 km (0.065 R)
• M5: 2,342,254 km (0.082 R)
• M6: 2,824,557 km (0.104 R)
• M7: 3,260,934 km (0.064 R)
• M8: 5,347,376 km (0.084 R)
• M9: 6,274,583 km (0.091 R)
• M10: 10,867,687 km (0.039 R)
• M11: 11,549,704 km (0.115 R)
• M12: 15,290,548 km (0.116 R)
• M13: 17,035,308 km (0.099 R)
• M14: 23,550,594 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.5

Radius: 11.1

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.2 AU - 6.12 AU

Year: 8694 Days

Day: 9.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,975,724 km

• M1: 267,032 km (0.065 R)
• M2: 1,851,124 km (0.085 R)
• M3: 2,205,970 km (0.1 R)
• M4: 4,933,439 km (0.111 R)
• M5: 7,693,071 km (0.054 R)
• M6: 8,318,240 km (0.057 R)
• M7: 9,754,080 km (0.112 R)
• M8: 10,754,142 km (0.082 R)
• M9: 11,821,074 km (0.102 R)
• M10: 17,169,796 km (0.092 R)
• M11: 20,575,691 km (0.105 R)
• M12: 21,278,801 km (0.06 R)
• M13: 24,097,375 km (0.108 R)
• M14: 28,173,169 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844.1

Radius: 6.5

Gravity: 19.98 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.37 AU - 8.53 AU

Year: 11830 Days

Day: 20.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 29,975,724 km

• M1: 80,783 km (0.051 R)
• M2: 604,824 km (0.062 R)
• M3: 874,400 km (0.095 R)
• M4: 1,615,208 km (0.094 R)
• M5: 2,376,961 km (0.103 R)
• M6: 2,670,621 km (0.108 R)
• M7: 3,618,473 km (0.073 R)
• M8: 4,612,850 km (0.101 R)
• M9: 5,926,918 km (0.11 R)
• M10: 6,958,844 km (0.058 R)
• M11: 7,385,796 km (0.028 R)
• M12: 8,626,561 km (0.088 R)
• M13: 9,946,912 km (0.061 R)
• M14: 11,050,346 km (0.108 R)
• M15: 12,728,984 km (0.109 R)
• M16: 15,844,509 km (0.119 R)
• M17: 16,285,075 km (0.112 R)
• M18: 18,855,615 km (0.102 R)
• M19: 19,102,003 km (0.112 R)
• M20: 19,350,485 km (0.117 R)
• M21: 20,194,217 km (0.065 R)
• M22: 20,712,124 km (0.106 R)
• M23: 22,594,814 km (0.085 R)
• M24: 23,625,094 km (0.084 R)
• M25: 27,215,892 km (0.102 R)
• M26: 30,586,033 km (0.074 R)
• M27: 33,139,668 km (0.098 R)
• M28: 42,768,535 km (0.114 R)
• M29: 43,193,992 km (0.1 R)
• M30: 47,151,005 km (0.056 R)
• M31: 48,984,776 km (0.089 R)
• M32: 56,625,038 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 261.8

Radius: 5.7

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.96 AU - 9.68 AU

Year: 15495 Days

Day: 22.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,975,724 km

• M1: 71,059 km (0.089 R)
• M2: 346,618 km (0.112 R)
• M3: 629,358 km (0.076 R)
• M4: 1,538,465 km (0.082 R)
• M5: 2,543,164 km (0.029 R)
• M6: 2,851,036 km (0.032 R)
• M7: 3,899,119 km (0.114 R)
• M8: 5,542,601 km (0.09 R)
• M9: 6,167,920 km (0.1 R)
• M10: 6,916,807 km (0.119 R)
• M11: 8,107,905 km (0.107 R)
• M12: 11,155,214 km (0.107 R)
• M13: 20,406,496 km (0.115 R)
• M14: 21,719,816 km (0.108 R)
• M15: 22,226,504 km (0.113 R)
• M16: 26,091,215 km (0.096 R)
• M17: 27,933,064 km (0.12 R)
• M18: 37,119,420 km (0.08 R)
• M19: 45,885,257 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 63.4

Radius: 3.7

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.55 AU - 10.63 AU

Year: 16256 Days

Day: 17.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 29,975,724 km

• M1: 73,303 km (0.104 R)
• M2: 519,254 km (0.074 R)
• M3: 1,862,643 km (0.12 R)
• M4: 2,123,991 km (0.072 R)
• M5: 5,825,491 km (0.113 R)
• M6: 5,976,734 km (0.053 R)
• M7: 6,673,860 km (0.054 R)
• M8: 6,906,485 km (0.079 R)
• M9: 7,965,638 km (0.095 R)
• M10: 9,374,102 km (0.061 R)
• M11: 11,217,148 km (0.118 R)
• M12: 19,754,848 km (0.105 R)
• M13: 23,275,933 km (0.117 R)
• M14: 25,707,048 km (0.099 R)
• M15: 29,351,551 km (0.079 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: 283 - 15,074 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit