🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.7

Radius: 11.5

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.58 AU - 0.94 AU

Year: 435 Days

Day: 6.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 76.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,627,697 km

• M1: 143,016 km (0.066 R)
• M2: 623,674 km (0.064 R)
• M3: 1,023,997 km (0.05 R)
• M4: 1,666,819 km (0.091 R)
• M5: 2,042,161 km (0.092 R)
• M6: 2,406,581 km (0.087 R)
• M7: 2,771,899 km (0.069 R)
• M8: 3,174,467 km (0.07 R)
• M9: 3,603,364 km (0.105 R)
• M10: 4,141,168 km (0.083 R)
• M11: 5,514,028 km (0.09 R)
• M12: 6,267,552 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.3

Radius: 9.1

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.79 AU - 0.83 AU

Year: 478 Days

Day: 11.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,627,697 km

• M1: 113,096 km (0.111 R)
• M2: 502,499 km (0.091 R)
• M3: 1,182,571 km (0.091 R)
• M4: 1,798,166 km (0.086 R)
• M5: 2,086,741 km (0.09 R)
• M6: 2,737,791 km (0.065 R)
• M7: 3,722,145 km (0.095 R)
• M8: 4,816,902 km (0.109 R)
• M9: 5,101,287 km (0.113 R)
• M10: 5,617,400 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.1

Radius: 14.9

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.97 AU - 1.17 AU

Year: 726 Days

Day: 14.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,627,697 km

• M1: 185,651 km (0.086 R)
• M2: 684,261 km (0.116 R)
• M3: 1,175,989 km (0.087 R)
• M4: 1,712,447 km (0.11 R)
• M5: 2,773,096 km (0.119 R)
• M6: 3,614,883 km (0.088 R)
• M7: 4,252,020 km (0.069 R)
• M8: 4,798,651 km (0.093 R)
• M9: 5,846,285 km (0.097 R)
• M10: 6,625,989 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.3

Radius: 8.4

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.08 AU - 1.36 AU

Year: 884 Days

Day: 5.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 155.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,627,697 km

• M1: 104,419 km (0.115 R)
• M2: 393,143 km (0.106 R)
• M3: 744,848 km (0.079 R)
• M4: 1,169,257 km (0.08 R)
• M5: 1,431,053 km (0.115 R)
• M6: 1,868,477 km (0.106 R)
• M7: 2,372,024 km (0.106 R)
• M8: 2,927,481 km (0.091 R)
• M9: 3,223,535 km (0.054 R)
• M10: 3,747,576 km (0.043 R)
• M11: 4,501,250 km (0.026 R)
• M12: 5,017,064 km (0.091 R)
• M13: 5,298,457 km (0.096 R)
• M14: 6,226,263 km (0.076 R)
• M15: 6,510,350 km (0.075 R)
• M16: 7,148,385 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.5

Radius: 11.4

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.96 AU - 1.56 AU

Year: 928 Days

Day: 11.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,627,697 km

• M1: 141,968 km (0.08 R)
• M2: 520,301 km (0.084 R)
• M3: 919,728 km (0.079 R)
• M4: 1,299,108 km (0.066 R)
• M5: 2,297,075 km (0.059 R)
• M6: 2,773,245 km (0.098 R)
• M7: 3,169,829 km (0.1 R)
• M8: 4,661,918 km (0.08 R)
• M9: 6,158,047 km (0.109 R)
• M10: 7,334,933 km (0.069 R)
• M11: 8,604,421 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.2

Radius: 14.9

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.8 AU - 2.98 AU

Year: 2424 Days

Day: 12.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,627,697 km

• M1: 185,801 km (0.063 R)
• M2: 712,385 km (0.062 R)
• M3: 1,468,453 km (0.031 R)
• M4: 2,010,745 km (0.054 R)
• M5: 2,532,542 km (0.048 R)
• M6: 3,782,582 km (0.032 R)
• M7: 4,955,579 km (0.096 R)
• M8: 6,545,356 km (0.106 R)
• M9: 7,154,219 km (0.111 R)
• M10: 9,042,742 km (0.112 R)
• M11: 9,764,403 km (0.09 R)
• M12: 10,861,553 km (0.036 R)
• M13: 12,450,582 km (0.111 R)
• M14: 13,696,283 km (0.093 R)
• M15: 14,929,419 km (0.119 R)
• M16: 15,889,687 km (0.068 R)
• M17: 16,535,651 km (0.067 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.3

Radius: 9.6

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.73 AU - 2.99 AU

Year: 3173 Days

Day: 5.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,627,697 km

• M1: 119,379 km (0.119 R)
• M2: 472,580 km (0.073 R)
• M3: 1,029,981 km (0.056 R)
• M4: 1,375,852 km (0.049 R)
• M5: 2,074,623 km (0.057 R)
• M6: 3,418,910 km (0.067 R)
• M7: 5,841,647 km (0.07 R)
• M8: 7,710,723 km (0.101 R)
• M9: 9,264,447 km (0.076 R)
• M10: 9,728,798 km (0.032 R)
• M11: 10,359,353 km (0.077 R)
• M12: 15,510,906 km (0.111 R)
• M13: 15,962,542 km (0.058 R)
• M14: 18,802,807 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668.4

Radius: 6.2

Gravity: 17.39 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.08 AU - 8.6 AU

Year: 14401 Days

Day: 17.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,627,697 km

• M1: 77,342 km (0.074 R)
• M2: 473,028 km (0.101 R)
• M3: 704,456 km (0.039 R)
• M4: 1,464,114 km (0.117 R)
• M5: 2,061,159 km (0.026 R)
• M6: 2,394,613 km (0.085 R)
• M7: 3,144,248 km (0.034 R)
• M8: 3,373,432 km (0.073 R)
• M9: 5,341,242 km (0.112 R)
• M10: 6,048,092 km (0.065 R)
• M11: 7,921,656 km (0.078 R)
• M12: 9,245,597 km (0.12 R)
• M13: 9,718,027 km (0.098 R)
• M14: 13,353,256 km (0.116 R)
• M15: 16,859,830 km (0.052 R)
• M16: 18,948,665 km (0.114 R)
• M17: 20,491,916 km (0.116 R)
• M18: 21,932,544 km (0.076 R)
• M19: 24,713,269 km (0.058 R)
• M20: 32,018,432 km (0.108 R)
• M21: 45,856,834 km (0.119 R)
• M22: 48,000,122 km (0.085 R)
• M23: 50,530,122 km (0.07 R)
• M24: 51,338,698 km (0.07 R)
• M25: 55,339,992 km (0.072 R)
• M26: 59,365,073 km (0.064 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 10,188 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit