🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.3

Radius: 13.5

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.47 AU - 0.67 AU

Year: 292 Days

Day: 8.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 84,260,221 km

• M1: 168,746 km (0.093 R)
• M2: 595,400 km (0.107 R)
• M3: 1,110,914 km (0.048 R)
• M4: 1,965,417 km (0.071 R)
• M5: 2,480,183 km (0.042 R)
• M6: 3,386,896 km (0.056 R)
• M7: 3,820,879 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.3

Radius: 9.2

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.53 AU - 0.67 AU

Year: 315 Days

Day: 10.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,260,221 km

• M1: 114,442 km (0.075 R)
• M2: 420,370 km (0.093 R)
• M3: 737,069 km (0.115 R)
• M4: 1,063,491 km (0.11 R)
• M5: 1,368,970 km (0.111 R)
• M6: 1,720,226 km (0.1 R)
• M7: 2,508,906 km (0.051 R)
• M8: 2,881,405 km (0.094 R)
• M9: 3,421,004 km (0.094 R)
• M10: 3,797,392 km (0.103 R)
• M11: 4,264,886 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.4

Radius: 8.8

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.63 AU - 0.67 AU

Year: 355 Days

Day: 9.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,260,221 km

• M1: 110,254 km (0.041 R)
• M2: 401,521 km (0.094 R)
• M3: 703,858 km (0.077 R)
• M4: 1,301,501 km (0.115 R)
• M5: 1,603,689 km (0.091 R)
• M6: 2,262,369 km (0.109 R)
• M7: 2,658,653 km (0.108 R)
• M8: 2,980,887 km (0.113 R)
• M9: 3,458,553 km (0.09 R)
• M10: 4,108,107 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.6

Radius: 11.4

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.88 AU - 2.58 AU

Year: 2259 Days

Day: 8.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,260,221 km

• M1: 141,819 km (0.104 R)
• M2: 958,324 km (0.058 R)
• M3: 1,384,827 km (0.102 R)
• M4: 2,177,098 km (0.088 R)
• M5: 3,073,787 km (0.088 R)
• M6: 4,273,263 km (0.079 R)
• M7: 6,009,945 km (0.054 R)
• M8: 6,772,445 km (0.07 R)
• M9: 7,438,455 km (0.032 R)
• M10: 8,203,947 km (0.091 R)
• M11: 8,871,453 km (0.1 R)
• M12: 9,828,131 km (0.103 R)
• M13: 10,249,100 km (0.106 R)
• M14: 11,549,554 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.1

Radius: 13

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 2.98 AU - 3.68 AU

Year: 4122 Days

Day: 9.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,260,221 km

• M1: 161,715 km (0.115 R)
• M2: 679,174 km (0.104 R)
• M3: 1,527,693 km (0.072 R)
• M4: 2,323,255 km (0.082 R)
• M5: 2,895,317 km (0.096 R)
• M6: 3,360,267 km (0.098 R)
• M7: 4,051,110 km (0.094 R)
• M8: 4,685,106 km (0.112 R)
• M9: 6,182,431 km (0.104 R)
• M10: 6,831,387 km (0.081 R)
• M11: 8,157,123 km (0.099 R)
• M12: 9,054,411 km (0.118 R)
• M13: 10,694,901 km (0.044 R)
• M14: 13,363,877 km (0.116 R)
• M15: 14,717,887 km (0.116 R)
• M16: 15,763,726 km (0.099 R)
• M17: 18,313,323 km (0.067 R)
• M18: 19,458,045 km (0.09 R)
• M19: 24,291,253 km (0.118 R)
• M20: 25,438,968 km (0.044 R)
• M21: 26,382,781 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.1

Radius: 8.4

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.35 AU - 3.71 AU

Year: 4498 Days

Day: 11.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,260,221 km

• M1: 104,569 km (0.116 R)
• M2: 624,870 km (0.063 R)
• M3: 992,432 km (0.095 R)
• M4: 1,550,283 km (0.089 R)
• M5: 1,844,243 km (0.094 R)
• M6: 2,588,791 km (0.111 R)
• M7: 2,959,345 km (0.108 R)
• M8: 3,365,055 km (0.106 R)
• M9: 3,995,161 km (0.118 R)
• M10: 4,368,856 km (0.119 R)
• M11: 5,324,487 km (0.086 R)
• M12: 7,207,925 km (0.101 R)
• M13: 9,566,036 km (0.045 R)
• M14: 11,750,314 km (0.111 R)
• M15: 12,477,958 km (0.095 R)
• M16: 14,428,415 km (0.067 R)
• M17: 15,933,370 km (0.117 R)
• M18: 16,325,316 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348.4

Radius: 3.6

Gravity: 26.88 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 5.99 AU - 6.75 AU

Year: 10904 Days

Day: 17.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,260,221 km

• M1: 53,107 km (0.074 R)
• M2: 313,856 km (0.074 R)
• M3: 724,054 km (0.059 R)
• M4: 3,175,065 km (0.105 R)
• M5: 3,423,846 km (0.118 R)
• M6: 4,808,375 km (0.086 R)
• M7: 5,259,412 km (0.09 R)
• M8: 9,463,113 km (0.072 R)
• M9: 11,113,177 km (0.076 R)
• M10: 18,892,266 km (0.087 R)
• M11: 19,481,981 km (0.102 R)
• M12: 23,029,545 km (0.067 R)
• M13: 27,450,012 km (0.099 R)
• M14: 34,650,457 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.6

Radius: 7

Gravity: 16.81 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 8.38 AU - 11.5 AU

Year: 21255 Days

Day: 18.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,260,221 km

• M1: 92,003 km (0.065 R)
• M2: 313,108 km (0.098 R)
• M3: 730,636 km (0.117 R)
• M4: 1,020,557 km (0.117 R)
• M5: 1,466,358 km (0.095 R)
• M6: 2,337,018 km (0.099 R)
• M7: 3,111,935 km (0.047 R)
• M8: 3,454,065 km (0.104 R)
• M9: 3,789,613 km (0.089 R)
• M10: 4,490,479 km (0.091 R)
• M11: 4,742,402 km (0.084 R)
• M12: 5,080,194 km (0.045 R)
• M13: 6,190,659 km (0.118 R)
• M14: 7,554,543 km (0.045 R)
• M15: 10,358,157 km (0.106 R)
• M16: 10,672,013 km (0.079 R)
• M17: 11,187,228 km (0.052 R)
• M18: 12,267,175 km (0.107 R)
• M19: 14,869,280 km (0.105 R)
• M20: 18,542,506 km (0.086 R)
• M21: 20,342,618 km (0.117 R)
• M22: 21,946,307 km (0.07 R)
• M23: 23,096,565 km (0.079 R)
• M24: 28,958,408 km (0.091 R)
• M25: 30,597,103 km (0.038 R)
• M26: 32,563,417 km (0.113 R)
• M27: 33,101,670 km (0.119 R)
• M28: 34,892,058 km (0.106 R)
• M29: 37,919,171 km (0.082 R)
• M30: 47,179,877 km (0.068 R)
• M31: 65,845,652 km (0.085 R)
• M32: 77,385,782 km (0.11 R)
• M33: 82,754,251 km (0.117 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: 172 - 11,500 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit