🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.6

Radius: 11.1

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.48 AU - 0.64 AU

Year: 279 Days

Day: 7.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 78.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,428,612 km

• M1: 138,079 km (0.08 R)
• M2: 511,026 km (0.094 R)
• M3: 976,575 km (0.119 R)
• M4: 1,347,727 km (0.064 R)
• M5: 2,379,953 km (0.052 R)
• M6: 2,790,748 km (0.058 R)
• M7: 3,206,331 km (0.101 R)
• M8: 4,124,862 km (0.092 R)
• M9: 4,476,567 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.2

Radius: 10.9

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.6 AU - 0.94 AU

Year: 451 Days

Day: 12.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 67,428,612 km

• M1: 135,536 km (0.103 R)
• M2: 527,931 km (0.113 R)
• M3: 880,683 km (0.03 R)
• M4: 1,262,756 km (0.088 R)
• M5: 2,130,573 km (0.093 R)
• M6: 2,745,719 km (0.028 R)
• M7: 3,253,305 km (0.066 R)
• M8: 3,939,810 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760

Radius: 11.8

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.75 AU - 1.09 AU

Year: 588 Days

Day: 5.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,428,612 km

• M1: 146,756 km (0.11 R)
• M2: 650,302 km (0.103 R)
• M3: 1,094,757 km (0.096 R)
• M4: 1,488,499 km (0.054 R)
• M5: 1,909,467 km (0.035 R)
• M6: 2,481,679 km (0.037 R)
• M7: 4,131,295 km (0.084 R)
• M8: 4,747,339 km (0.088 R)
• M9: 5,283,348 km (0.049 R)
• M10: 6,086,389 km (0.099 R)
• M11: 6,968,867 km (0.078 R)
• M12: 7,441,297 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.6

Radius: 10.6

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.19 AU - 1.29 AU

Year: 921 Days

Day: 6.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,428,612 km

• M1: 131,945 km (0.106 R)
• M2: 662,868 km (0.081 R)
• M3: 1,069,176 km (0.106 R)
• M4: 1,972,448 km (0.091 R)
• M5: 2,493,049 km (0.115 R)
• M6: 3,010,508 km (0.039 R)
• M7: 3,351,890 km (0.112 R)
• M8: 4,483,149 km (0.104 R)
• M9: 4,930,447 km (0.096 R)
• M10: 5,446,858 km (0.083 R)
• M11: 5,831,624 km (0.11 R)
• M12: 6,212,949 km (0.087 R)
• M13: 7,606,005 km (0.099 R)
• M14: 7,984,786 km (0.114 R)
• M15: 8,429,092 km (0.118 R)
• M16: 9,140,729 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.1

Radius: 8

Gravity: 14.66 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.54 AU - 2.04 AU

Year: 1597 Days

Day: 8.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,428,612 km

• M1: 99,483 km (0.104 R)
• M2: 590,762 km (0.117 R)
• M3: 974,181 km (0.077 R)
• M4: 1,261,260 km (0.055 R)
• M5: 1,685,220 km (0.083 R)
• M6: 2,140,596 km (0.12 R)
• M7: 3,756,403 km (0.046 R)
• M8: 4,104,816 km (0.091 R)
• M9: 4,434,530 km (0.099 R)
• M10: 5,038,157 km (0.109 R)
• M11: 6,332,029 km (0.062 R)
• M12: 7,346,602 km (0.1 R)
• M13: 8,841,683 km (0.078 R)
• M14: 10,891,174 km (0.055 R)
• M15: 12,461,652 km (0.108 R)
• M16: 13,363,727 km (0.099 R)
• M17: 13,745,202 km (0.102 R)
• M18: 14,978,337 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.2

Radius: 13.3

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.76 AU - 2.02 AU

Year: 1733 Days

Day: 5.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,428,612 km

• M1: 165,455 km (0.067 R)
• M2: 702,811 km (0.108 R)
• M3: 1,241,064 km (0.1 R)
• M4: 1,765,404 km (0.083 R)
• M5: 2,352,277 km (0.054 R)
• M6: 2,868,988 km (0.081 R)
• M7: 3,872,042 km (0.067 R)
• M8: 4,598,190 km (0.117 R)
• M9: 5,035,165 km (0.108 R)
• M10: 6,639,602 km (0.114 R)
• M11: 8,387,055 km (0.057 R)
• M12: 8,982,006 km (0.083 R)
• M13: 10,156,798 km (0.051 R)
• M14: 10,971,957 km (0.115 R)
• M15: 11,647,989 km (0.065 R)
• M16: 13,479,815 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.2

Radius: 12.3

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.48 AU - 6.06 AU

Year: 8068 Days

Day: 5.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,428,612 km

• M1: 160,519 km (0.096 R)
• M2: 1,067,830 km (0.096 R)
• M3: 3,479,347 km (0.085 R)
• M4: 6,333,974 km (0.056 R)
• M5: 13,084,578 km (0.111 R)
• M6: 14,566,494 km (0.105 R)
• M7: 15,165,335 km (0.109 R)
• M8: 15,656,165 km (0.068 R)
• M9: 17,391,500 km (0.064 R)
• M10: 19,180,541 km (0.11 R)
• M11: 23,202,331 km (0.096 R)
• M12: 29,049,214 km (0.09 R)
• M13: 29,616,489 km (0.099 R)
• M14: 32,059,721 km (0.104 R)
• M15: 32,767,170 km (0.094 R)
• M16: 34,108,763 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.6

Radius: 4.6

Gravity: 15.86 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.74 AU - 7.3 AU

Year: 9850 Days

Day: 18.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,428,612 km

• M1: 58,942 km (0.078 R)
• M2: 267,780 km (0.114 R)
• M3: 460,313 km (0.11 R)
• M4: 1,525,300 km (0.076 R)
• M5: 2,669,275 km (0.094 R)
• M6: 3,910,339 km (0.106 R)
• M7: 4,318,292 km (0.098 R)
• M8: 4,924,912 km (0.059 R)
• M9: 6,758,084 km (0.118 R)
• M10: 9,088,669 km (0.063 R)
• M11: 9,620,639 km (0.095 R)
• M12: 10,173,254 km (0.058 R)
• M13: 11,190,519 km (0.042 R)
• M14: 11,749,566 km (0.071 R)
• M15: 13,144,866 km (0.047 R)
• M16: 14,056,366 km (0.107 R)
• M17: 17,042,489 km (0.09 R)
• M18: 20,877,879 km (0.044 R)
• M19: 22,194,938 km (0.073 R)
• M20: 24,314,890 km (0.119 R)
• M21: 25,946,853 km (0.072 R)
• M22: 28,763,781 km (0.072 R)
• M23: 29,906,858 km (0.097 R)
• M24: 30,100,288 km (0.111 R)
• M25: 33,413,283 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 328.4

Radius: 6.4

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 10.77 AU - 11.09 AU

Year: 24097 Days

Day: 15.1 Hours

Environment

Temp: -247 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,428,612 km

• M1: 81,232 km (0.102 R)
• M2: 578,944 km (0.053 R)
• M3: 787,034 km (0.117 R)
• M4: 3,092,637 km (0.118 R)
• M5: 3,631,189 km (0.11 R)
• M6: 3,922,905 km (0.096 R)
• M7: 5,286,190 km (0.117 R)
• M8: 6,592,479 km (0.095 R)
• M9: 22,786,598 km (0.061 R)
• M10: 38,311,117 km (0.106 R)
• M11: 49,177,009 km (0.089 R)
• M12: 50,999,410 km (0.098 R)
• M13: 52,523,513 km (0.112 R)
• M14: 65,825,157 km (0.114 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 174 - 17,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit