🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.4

Radius: 13.8

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.53 AU - 0.85 AU

Year: 370 Days

Day: 11 Hours

Environment

Temp: -134 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,418,875 km

• M1: 174,431 km (0.066 R)
• M2: 683,513 km (0.052 R)
• M3: 1,326,036 km (0.074 R)
• M4: 1,842,896 km (0.102 R)
• M5: 2,503,072 km (0.057 R)
• M6: 3,357,425 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.5

Radius: 10.7

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.22 AU - 1.28 AU

Year: 902 Days

Day: 13.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,418,875 km

• M1: 133,142 km (0.04 R)
• M2: 528,080 km (0.059 R)
• M3: 861,983 km (0.06 R)
• M4: 1,195,437 km (0.078 R)
• M5: 1,544,149 km (0.098 R)
• M6: 2,316,972 km (0.103 R)
• M7: 3,041,026 km (0.102 R)
• M8: 3,718,405 km (0.037 R)
• M9: 4,122,020 km (0.087 R)
• M10: 4,679,721 km (0.1 R)
• M11: 5,425,017 km (0.099 R)
• M12: 5,762,660 km (0.041 R)
• M13: 6,480,580 km (0.107 R)
• M14: 6,922,791 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.1

Radius: 10.7

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.61 AU - 2.07 AU

Year: 1612 Days

Day: 13.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,418,875 km

• M1: 133,142 km (0.028 R)
• M2: 546,930 km (0.107 R)
• M3: 953,836 km (0.053 R)
• M4: 1,434,943 km (0.08 R)
• M5: 1,852,620 km (0.057 R)
• M6: 2,291,690 km (0.072 R)
• M7: 2,759,034 km (0.108 R)
• M8: 3,095,629 km (0.086 R)
• M9: 4,967,846 km (0.116 R)
• M10: 6,405,631 km (0.106 R)
• M11: 7,103,804 km (0.117 R)
• M12: 7,687,386 km (0.071 R)
• M13: 8,047,019 km (0.114 R)
• M14: 8,622,372 km (0.064 R)
• M15: 9,163,468 km (0.066 R)
• M16: 9,568,280 km (0.092 R)
• M17: 10,082,747 km (0.056 R)
• M18: 11,737,898 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.5

Radius: 13.8

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.8 AU - 1.94 AU

Year: 1651 Days

Day: 10.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,418,875 km

• M1: 209,138 km (0.108 R)
• M2: 710,440 km (0.05 R)
• M3: 1,654,852 km (0.099 R)
• M4: 2,201,931 km (0.105 R)
• M5: 2,833,982 km (0.097 R)
• M6: 3,544,123 km (0.108 R)
• M7: 4,966,949 km (0.037 R)
• M8: 5,712,245 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.2

Radius: 11.4

Gravity: 1.98 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.1 AU - 3.16 AU

Year: 3575 Days

Day: 5.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,418,875 km

• M1: 141,819 km (0.04 R)
• M2: 508,932 km (0.111 R)
• M3: 901,776 km (0.034 R)
• M4: 1,449,454 km (0.049 R)
• M5: 2,088,685 km (0.119 R)
• M6: 2,488,112 km (0.102 R)
• M7: 2,862,406 km (0.116 R)
• M8: 3,654,377 km (0.105 R)
• M9: 5,154,544 km (0.039 R)
• M10: 5,598,551 km (0.056 R)
• M11: 6,753,446 km (0.12 R)
• M12: 8,596,043 km (0.11 R)
• M13: 9,914,449 km (0.081 R)
• M14: 11,876,276 km (0.089 R)
• M15: 13,119,284 km (0.102 R)
• M16: 14,630,672 km (0.047 R)
• M17: 15,524,220 km (0.074 R)
• M18: 16,255,005 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.2

Radius: 14.7

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.59 AU - 3.97 AU

Year: 3836 Days

Day: 9.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,418,875 km

• M1: 182,809 km (0.114 R)
• M2: 1,038,209 km (0.085 R)
• M3: 1,556,715 km (0.09 R)
• M4: 2,095,118 km (0.088 R)
• M5: 2,672,267 km (0.112 R)
• M6: 4,636,636 km (0.075 R)
• M7: 5,363,832 km (0.107 R)
• M8: 6,320,360 km (0.076 R)
• M9: 6,819,419 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.6

Radius: 9.7

Gravity: 6.22 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 4.3 AU - 7.16 AU

Year: 8856 Days

Day: 6.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 32,418,875 km

• M1: 120,725 km (0.069 R)
• M2: 530,624 km (0.106 R)
• M3: 864,376 km (0.11 R)
• M4: 1,250,189 km (0.098 R)
• M5: 2,008,052 km (0.035 R)
• M6: 2,679,298 km (0.046 R)
• M7: 3,882,065 km (0.091 R)
• M8: 4,272,665 km (0.112 R)
• M9: 5,163,670 km (0.036 R)
• M10: 7,272,102 km (0.111 R)
• M11: 8,932,489 km (0.097 R)
• M12: 10,630,724 km (0.07 R)
• M13: 10,933,360 km (0.087 R)
• M14: 13,507,790 km (0.093 R)
• M15: 15,604,853 km (0.108 R)
• M16: 16,867,010 km (0.116 R)
• M17: 18,267,695 km (0.112 R)
• M18: 22,024,547 km (0.079 R)
• M19: 24,738,401 km (0.091 R)
• M20: 25,901,974 km (0.069 R)
• M21: 29,314,301 km (0.059 R)
• M22: 31,957,546 km (0.056 R)
• M23: 37,016,198 km (0.099 R)
• M24: 38,182,463 km (0.088 R)
• M25: 38,655,791 km (0.116 R)
• M26: 40,711,116 km (0.099 R)
• M27: 41,578,185 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 123

Radius: 6.1

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 5.88 AU - 7.88 AU

Year: 11652 Days

Day: 20.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,418,875 km

• M1: 75,846 km (0.097 R)
• M2: 439,219 km (0.047 R)
• M3: 957,127 km (0.063 R)
• M4: 1,588,729 km (0.055 R)
• M5: 1,861,297 km (0.113 R)
• M6: 2,179,940 km (0.101 R)
• M7: 3,236,550 km (0.117 R)
• M8: 3,991,421 km (0.057 R)
• M9: 4,227,187 km (0.091 R)
• M10: 5,072,265 km (0.088 R)
• M11: 6,527,254 km (0.096 R)
• M12: 7,868,848 km (0.07 R)
• M13: 10,947,572 km (0.082 R)
• M14: 11,742,685 km (0.12 R)
• M15: 12,277,348 km (0.03 R)
• M16: 13,032,368 km (0.115 R)
• M17: 16,423,752 km (0.063 R)
• M18: 17,464,355 km (0.08 R)
• M19: 20,568,959 km (0.104 R)
• M20: 24,177,709 km (0.087 R)
• M21: 26,832,622 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 106.3

Radius: 4.6

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 7.75 AU - 7.89 AU

Year: 14120 Days

Day: 21.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,418,875 km

• M1: 57,296 km (0.09 R)
• M2: 352,602 km (0.028 R)
• M3: 1,397,693 km (0.119 R)
• M4: 4,175,725 km (0.053 R)
• M5: 4,375,289 km (0.065 R)
• M6: 5,649,564 km (0.098 R)
• M7: 5,894,007 km (0.104 R)
• M8: 12,750,227 km (0.083 R)
• M9: 14,207,160 km (0.07 R)
• M10: 17,835,208 km (0.048 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 19,311 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit