🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.1

Radius: 10.4

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.85 AU - 1.23 AU

Year: 707 Days

Day: 13.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,037,674 km

• M1: 129,402 km (0.081 R)
• M2: 466,147 km (0.102 R)
• M3: 850,165 km (0.08 R)
• M4: 1,259,764 km (0.088 R)
• M5: 1,671,008 km (0.099 R)
• M6: 2,327,892 km (0.105 R)
• M7: 3,388,242 km (0.095 R)
• M8: 4,546,130 km (0.093 R)
• M9: 5,527,492 km (0.094 R)
• M10: 6,151,016 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.5

Radius: 11.4

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1 AU - 1.22 AU

Year: 780 Days

Day: 10 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,037,674 km

• M1: 154,834 km (0.111 R)
• M2: 551,567 km (0.047 R)
• M3: 931,396 km (0.108 R)
• M4: 1,419,833 km (0.101 R)
• M5: 1,858,903 km (0.114 R)
• M6: 2,228,709 km (0.052 R)
• M7: 3,298,334 km (0.102 R)
• M8: 4,514,864 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.3

Radius: 13.7

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.68 AU - 3.24 AU

Year: 3396 Days

Day: 9.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,037,674 km

• M1: 170,392 km (0.084 R)
• M2: 828,174 km (0.029 R)
• M3: 1,895,106 km (0.104 R)
• M4: 7,698,905 km (0.092 R)
• M5: 8,774,364 km (0.064 R)
• M6: 10,326,292 km (0.094 R)
• M7: 11,558,231 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.1

Radius: 14.9

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.25 AU - 3.73 AU

Year: 3448 Days

Day: 12.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,037,674 km

• M1: 186,100 km (0.071 R)
• M2: 751,430 km (0.081 R)
• M3: 1,468,004 km (0.073 R)
• M4: 2,016,579 km (0.08 R)
• M5: 3,057,780 km (0.078 R)
• M6: 3,541,879 km (0.073 R)
• M7: 5,184,763 km (0.099 R)
• M8: 6,336,517 km (0.119 R)
• M9: 7,067,751 km (0.102 R)
• M10: 10,992,900 km (0.092 R)
• M11: 11,780,234 km (0.081 R)
• M12: 13,913,799 km (0.089 R)
• M13: 15,311,492 km (0.093 R)
• M14: 16,630,795 km (0.075 R)
• M15: 19,811,545 km (0.086 R)
• M16: 21,917,434 km (0.11 R)
• M17: 24,533,901 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.8

Radius: 8.6

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.63 AU - 4.83 AU

Year: 6860 Days

Day: 14.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 164 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,037,674 km

• M1: 107,112 km (0.051 R)
• M2: 380,577 km (0.074 R)
• M3: 794,813 km (0.103 R)
• M4: 1,520,812 km (0.095 R)
• M5: 2,016,729 km (0.12 R)
• M6: 2,388,779 km (0.063 R)
• M7: 3,897,623 km (0.06 R)
• M8: 4,650,549 km (0.063 R)
• M9: 5,525,248 km (0.113 R)
• M10: 6,196,793 km (0.114 R)
• M11: 14,996,588 km (0.108 R)
• M12: 15,952,668 km (0.11 R)
• M13: 17,923,770 km (0.079 R)
• M14: 18,551,782 km (0.088 R)
• M15: 22,997,082 km (0.072 R)
• M16: 25,662,168 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.8

Radius: 6.2

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.19 AU - 6.67 AU

Year: 9630 Days

Day: 22.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 42,037,674 km

• M1: 88,412 km (0.114 R)
• M2: 301,141 km (0.101 R)
• M3: 789,877 km (0.084 R)
• M4: 1,158,486 km (0.099 R)
• M5: 1,827,039 km (0.087 R)
• M6: 2,048,144 km (0.097 R)
• M7: 2,763,970 km (0.086 R)
• M8: 3,348,000 km (0.093 R)
• M9: 6,902,895 km (0.094 R)
• M10: 7,741,540 km (0.113 R)
• M11: 8,165,949 km (0.104 R)
• M12: 10,805,305 km (0.07 R)
• M13: 12,815,152 km (0.097 R)
• M14: 18,492,840 km (0.091 R)
• M15: 19,460,738 km (0.113 R)
• M16: 20,534,701 km (0.078 R)
• M17: 22,488,898 km (0.118 R)
• M18: 22,956,990 km (0.099 R)
• M19: 24,074,037 km (0.097 R)
• M20: 24,977,010 km (0.115 R)
• M21: 25,227,138 km (0.086 R)
• M22: 26,502,759 km (0.104 R)
• M23: 27,288,447 km (0.114 R)
• M24: 27,999,934 km (0.076 R)
• M25: 31,258,026 km (0.035 R)
• M26: 31,451,606 km (0.085 R)
• M27: 32,529,907 km (0.119 R)
• M28: 33,028,218 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15.8

Radius: 3.3

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.64 AU - 10.98 AU

Year: 17438 Days

Day: 16 Hours

Environment

Temp: -227 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,037,674 km

• M1: 55,950 km (0.117 R)
• M2: 313,707 km (0.086 R)
• M3: 1,000,211 km (0.073 R)
• M4: 1,481,767 km (0.033 R)
• M5: 1,721,423 km (0.062 R)
• M6: 2,141,793 km (0.089 R)
• M7: 3,771,662 km (0.108 R)
• M8: 4,323,229 km (0.115 R)
• M9: 5,309,827 km (0.11 R)
• M10: 6,000,670 km (0.108 R)
• M11: 6,134,859 km (0.103 R)
• M12: 6,465,171 km (0.117 R)
• M13: 7,558,283 km (0.092 R)
• M14: 8,197,814 km (0.048 R)
• M15: 13,392,600 km (0.04 R)
• M16: 14,614,216 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.8

Radius: 3.4

Gravity: 12.01 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.89 AU - 11.27 AU

Year: 18246 Days

Day: 19.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,037,674 km

• M1: 42,336 km (0.095 R)
• M2: 165,156 km (0.08 R)
• M3: 763,548 km (0.119 R)
• M4: 1,431,352 km (0.095 R)
• M5: 1,921,136 km (0.113 R)
• M6: 6,015,630 km (0.093 R)
• M7: 6,877,912 km (0.12 R)
• M8: 10,344,394 km (0.088 R)
• M9: 13,247,041 km (0.074 R)
• M10: 22,277,816 km (0.101 R)
• M11: 23,623,299 km (0.094 R)
• M12: 25,290,418 km (0.079 R)
• M13: 27,601,106 km (0.109 R)
• M14: 28,758,695 km (0.063 R)
• M15: 29,052,954 km (0.101 R)
• M16: 30,861,442 km (0.118 R)
• M17: 35,482,521 km (0.065 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 13,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit