🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.7

Radius: 14.2

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.46 AU - 0.74 AU

Year: 315 Days

Day: 6.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,454,777 km

• M1: 177,722 km (0.092 R)
• M2: 742,903 km (0.069 R)
• M3: 1,382,584 km (0.096 R)
• M4: 1,832,275 km (0.096 R)
• M5: 2,341,207 km (0.033 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.5

Radius: 12.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.9 AU - 0.9 AU

Year: 579 Days

Day: 12.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,454,777 km

• M1: 160,369 km (0.106 R)
• M2: 570,865 km (0.065 R)
• M3: 1,011,581 km (0.098 R)
• M4: 1,501,963 km (0.091 R)
• M5: 2,134,462 km (0.11 R)
• M6: 2,637,560 km (0.087 R)
• M7: 4,337,740 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.8

Radius: 14.1

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.73 AU - 1.17 AU

Year: 628 Days

Day: 11.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,454,777 km

• M1: 176,825 km (0.116 R)
• M2: 743,053 km (0.099 R)
• M3: 1,345,633 km (0.099 R)
• M4: 2,015,532 km (0.099 R)
• M5: 2,516,386 km (0.112 R)
• M6: 3,396,470 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.4

Radius: 12.8

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.03 AU - 1.35 AU

Year: 880 Days

Day: 9.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,454,777 km

• M1: 161,416 km (0.07 R)
• M2: 578,794 km (0.09 R)
• M3: 1,056,161 km (0.031 R)
• M4: 1,779,616 km (0.115 R)
• M5: 3,269,910 km (0.096 R)
• M6: 4,244,690 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.5

Radius: 10

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.16 AU - 1.65 AU

Year: 1124 Days

Day: 12.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,454,777 km

• M1: 124,914 km (0.09 R)
• M2: 440,566 km (0.056 R)
• M3: 836,252 km (0.083 R)
• M4: 1,280,259 km (0.094 R)
• M5: 1,657,694 km (0.112 R)
• M6: 2,050,089 km (0.105 R)
• M7: 2,526,858 km (0.07 R)
• M8: 2,998,839 km (0.083 R)
• M9: 3,704,342 km (0.094 R)
• M10: 4,056,945 km (0.075 R)
• M11: 5,501,462 km (0.105 R)
• M12: 6,254,986 km (0.09 R)
• M13: 7,262,378 km (0.086 R)
• M14: 7,792,703 km (0.087 R)
• M15: 8,297,147 km (0.089 R)
• M16: 8,610,105 km (0.097 R)
• M17: 9,483,458 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.6

Radius: 8.4

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.46 AU - 1.68 AU

Year: 1334 Days

Day: 6.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,454,777 km

• M1: 105,018 km (0.106 R)
• M2: 382,522 km (0.061 R)
• M3: 774,917 km (0.107 R)
• M4: 1,267,094 km (0.109 R)
• M5: 1,584,690 km (0.09 R)
• M6: 2,286,753 km (0.053 R)
• M7: 2,573,831 km (0.095 R)
• M8: 3,181,498 km (0.087 R)
• M9: 4,391,595 km (0.087 R)
• M10: 6,513,192 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.4

Radius: 11

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.92 AU - 2.34 AU

Year: 2108 Days

Day: 9.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 25,454,777 km

• M1: 137,480 km (0.113 R)
• M2: 714,928 km (0.114 R)
• M3: 1,242,710 km (0.074 R)
• M4: 1,768,097 km (0.096 R)
• M5: 4,838,145 km (0.109 R)
• M6: 5,474,833 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.2

Radius: 12.8

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.05 AU - 3.11 AU

Year: 2811 Days

Day: 9 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,454,777 km

• M1: 159,172 km (0.116 R)
• M2: 655,388 km (0.071 R)
• M3: 1,278,015 km (0.099 R)
• M4: 1,791,883 km (0.105 R)
• M5: 2,353,773 km (0.102 R)
• M6: 3,263,926 km (0.068 R)
• M7: 3,678,462 km (0.07 R)
• M8: 5,657,941 km (0.105 R)
• M9: 6,087,437 km (0.083 R)
• M10: 6,825,552 km (0.118 R)
• M11: 7,823,969 km (0.105 R)
• M12: 8,389,000 km (0.09 R)
• M13: 9,206,253 km (0.069 R)
• M14: 10,110,273 km (0.039 R)
• M15: 12,770,572 km (0.114 R)
• M16: 13,221,011 km (0.114 R)
• M17: 14,993,895 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.8

Radius: 4.2

Gravity: 22.15 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 5.39 AU - 6.55 AU

Year: 9894 Days

Day: 15.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 25,454,777 km

• M1: 71,657 km (0.087 R)
• M2: 235,766 km (0.115 R)
• M3: 557,252 km (0.118 R)
• M4: 880,982 km (0.059 R)
• M5: 1,043,744 km (0.111 R)
• M6: 1,319,902 km (0.078 R)
• M7: 1,547,590 km (0.066 R)
• M8: 1,771,538 km (0.087 R)
• M9: 1,937,741 km (0.104 R)
• M10: 2,952,015 km (0.111 R)
• M11: 3,186,435 km (0.041 R)
• M12: 3,502,535 km (0.031 R)
• M13: 6,088,633 km (0.082 R)
• M14: 9,176,932 km (0.091 R)
• M15: 11,028,505 km (0.091 R)
• M16: 12,068,210 km (0.111 R)
• M17: 12,501,894 km (0.076 R)
• M18: 14,042,154 km (0.109 R)
• M19: 15,640,757 km (0.098 R)
• M20: 17,562,341 km (0.088 R)
• M21: 19,048,297 km (0.091 R)
• M22: 21,470,586 km (0.112 R)
• M23: 22,106,676 km (0.06 R)
• M24: 22,267,643 km (0.116 R)
• M25: 22,510,590 km (0.063 R)
• M26: 23,167,025 km (0.115 R)
• M27: 27,283,809 km (0.111 R)
• M28: 27,935,757 km (0.053 R)
• M29: 32,170,723 km (0.051 R)
• M30: 32,689,379 km (0.105 R)
• M31: 38,301,244 km (0.068 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.5

Radius: 3.6

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.27 AU - 8.67 AU

Year: 13848 Days

Day: 15 Hours

Environment

Temp: -227 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,454,777 km

• M1: 44,730 km (0.111 R)
• M2: 163,062 km (0.118 R)
• M3: 567,425 km (0.043 R)
• M4: 697,126 km (0.11 R)
• M5: 838,945 km (0.065 R)
• M6: 1,171,950 km (0.103 R)
• M7: 2,329,538 km (0.063 R)
• M8: 2,890,231 km (0.056 R)
• M9: 3,556,091 km (0.096 R)
• M10: 4,295,404 km (0.115 R)
• M11: 7,250,859 km (0.112 R)
• M12: 9,062,639 km (0.093 R)
• M13: 15,485,025 km (0.107 R)
• M14: 16,094,487 km (0.073 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: 542 - 17,257 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit