🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.7

Radius: 10.9

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.49 AU - 0.79 AU

Year: 347 Days

Day: 7.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,379,676 km

• M1: 135,835 km (0.069 R)
• M2: 480,209 km (0.102 R)
• M3: 825,780 km (0.109 R)
• M4: 1,167,312 km (0.083 R)
• M5: 1,631,814 km (0.119 R)
• M6: 2,258,928 km (0.079 R)
• M7: 2,950,968 km (0.076 R)
• M8: 3,606,356 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.5

Radius: 8.8

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.02 AU - 1.12 AU

Year: 751 Days

Day: 11.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,379,676 km

• M1: 109,506 km (0.048 R)
• M2: 404,812 km (0.079 R)
• M3: 822,639 km (0.09 R)
• M4: 1,131,110 km (0.117 R)
• M5: 1,494,782 km (0.113 R)
• M6: 1,864,139 km (0.096 R)
• M7: 3,234,456 km (0.051 R)
• M8: 3,976,611 km (0.119 R)
• M9: 5,018,859 km (0.076 R)
• M10: 5,622,786 km (0.062 R)
• M11: 6,397,852 km (0.069 R)
• M12: 7,130,283 km (0.104 R)
• M13: 8,257,952 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.6

Radius: 12.2

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.74 AU - 1.78 AU

Year: 1584 Days

Day: 5.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 54,379,676 km

• M1: 160,070 km (0.093 R)
• M2: 699,370 km (0.083 R)
• M3: 1,078,750 km (0.109 R)
• M4: 2,687,227 km (0.106 R)
• M5: 3,342,615 km (0.106 R)
• M6: 4,749,882 km (0.076 R)
• M7: 5,333,613 km (0.084 R)
• M8: 5,964,617 km (0.11 R)
• M9: 7,056,681 km (0.038 R)
• M10: 7,485,279 km (0.074 R)
• M11: 8,336,042 km (0.092 R)
• M12: 9,863,137 km (0.103 R)
• M13: 11,605,952 km (0.098 R)
• M14: 12,396,128 km (0.064 R)
• M15: 13,181,667 km (0.082 R)
• M16: 13,792,325 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.4

Radius: 13.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.91 AU - 2.45 AU

Year: 2183 Days

Day: 7.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,379,676 km

• M1: 168,298 km (0.083 R)
• M2: 647,908 km (0.1 R)
• M3: 1,081,892 km (0.06 R)
• M4: 1,880,146 km (0.102 R)
• M5: 2,342,104 km (0.062 R)
• M6: 3,575,389 km (0.062 R)
• M7: 6,021,165 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.6

Radius: 11.9

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.54 AU - 3.44 AU

Year: 3507 Days

Day: 5.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,379,676 km

• M1: 148,102 km (0.097 R)
• M2: 679,773 km (0.103 R)
• M3: 1,088,773 km (0.118 R)
• M4: 1,460,374 km (0.065 R)
• M5: 1,918,593 km (0.082 R)
• M6: 2,650,126 km (0.036 R)
• M7: 3,394,824 km (0.071 R)
• M8: 4,232,124 km (0.1 R)
• M9: 4,964,256 km (0.058 R)
• M10: 5,373,556 km (0.075 R)
• M11: 7,031,549 km (0.083 R)
• M12: 8,289,816 km (0.116 R)
• M13: 12,919,272 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973

Radius: 12.6

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 3.13 AU - 3.23 AU

Year: 3846 Days

Day: 7.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,379,676 km

• M1: 156,779 km (0.099 R)
• M2: 833,709 km (0.071 R)
• M3: 1,546,094 km (0.11 R)
• M4: 2,196,994 km (0.037 R)
• M5: 2,969,518 km (0.085 R)
• M6: 4,375,887 km (0.109 R)
• M7: 4,820,492 km (0.115 R)
• M8: 5,657,642 km (0.09 R)
• M9: 7,585,809 km (0.037 R)
• M10: 8,341,428 km (0.087 R)
• M11: 9,186,207 km (0.119 R)
• M12: 9,960,825 km (0.088 R)
• M13: 14,830,684 km (0.098 R)
• M14: 15,954,613 km (0.076 R)
• M15: 17,377,438 km (0.083 R)
• M16: 20,135,574 km (0.055 R)
• M17: 20,610,697 km (0.059 R)
• M18: 23,470,859 km (0.095 R)
• M19: 24,608,551 km (0.073 R)
• M20: 27,488,758 km (0.102 R)
• M21: 28,496,749 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.2

Radius: 9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.98 AU - 4.66 AU

Year: 6090 Days

Day: 13.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,379,676 km

• M1: 114,293 km (0.09 R)
• M2: 491,579 km (0.111 R)
• M3: 825,182 km (0.073 R)
• M4: 1,179,280 km (0.065 R)
• M5: 1,777,821 km (0.09 R)
• M6: 2,160,941 km (0.078 R)
• M7: 6,336,367 km (0.082 R)
• M8: 7,236,049 km (0.09 R)
• M9: 9,059,049 km (0.069 R)
• M10: 9,756,025 km (0.094 R)
• M11: 10,240,124 km (0.119 R)
• M12: 11,924,895 km (0.1 R)
• M13: 12,338,533 km (0.103 R)
• M14: 13,292,220 km (0.102 R)
• M15: 13,937,734 km (0.071 R)
• M16: 18,501,965 km (0.084 R)
• M17: 23,042,560 km (0.118 R)
• M18: 23,469,363 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 841.2

Radius: 3.9

Gravity: 55.31 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.01 AU - 7.73 AU

Year: 10904 Days

Day: 20.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 54,379,676 km

• M1: 49,068 km (0.12 R)
• M2: 176,376 km (0.106 R)
• M3: 349,760 km (0.1 R)
• M4: 581,038 km (0.05 R)
• M5: 1,620,594 km (0.094 R)
• M6: 2,438,296 km (0.049 R)
• M7: 2,668,826 km (0.073 R)
• M8: 3,903,756 km (0.093 R)
• M9: 5,268,239 km (0.097 R)
• M10: 5,511,186 km (0.064 R)
• M11: 6,362,547 km (0.118 R)
• M12: 7,045,611 km (0.118 R)
• M13: 7,512,955 km (0.096 R)
• M14: 10,485,464 km (0.095 R)
• M15: 10,759,228 km (0.099 R)
• M16: 11,493,156 km (0.12 R)
• M17: 11,901,707 km (0.097 R)
• M18: 16,609,852 km (0.098 R)
• M19: 17,131,948 km (0.105 R)
• M20: 17,819,350 km (0.088 R)
• M21: 18,052,424 km (0.084 R)
• M22: 18,209,053 km (0.063 R)
• M23: 22,695,493 km (0.11 R)
• M24: 23,710,814 km (0.094 R)
• M25: 24,852,545 km (0.099 R)
• M26: 25,241,050 km (0.103 R)
• M27: 26,531,930 km (0.11 R)
• M28: 27,657,954 km (0.1 R)
• M29: 36,821,870 km (0.08 R)
• M30: 38,350,312 km (0.101 R)
• M31: 42,355,496 km (0.102 R)
• M32: 46,190,736 km (0.09 R)
• M33: 47,073,364 km (0.056 R)
• M34: 49,788,565 km (0.115 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 541 - 12,663 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit