🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.5

Radius: 9.9

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.63 AU - 0.81 AU

Year: 394 Days

Day: 9.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 139.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,083,175 km

• M1: 124,914 km (0.063 R)
• M2: 463,903 km (0.09 R)
• M3: 780,901 km (0.032 R)
• M4: 1,103,733 km (0.099 R)
• M5: 1,489,546 km (0.065 R)
• M6: 2,049,192 km (0.116 R)
• M7: 2,474,648 km (0.12 R)
• M8: 2,912,820 km (0.073 R)
• M9: 3,463,490 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.1

Radius: 10.5

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.81 AU - 0.83 AU

Year: 479 Days

Day: 12.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 37,083,175 km

• M1: 130,599 km (0.066 R)
• M2: 567,126 km (0.049 R)
• M3: 1,204,263 km (0.069 R)
• M4: 1,644,829 km (0.087 R)
• M5: 2,239,779 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.8

Radius: 14.6

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.28 AU - 1.36 AU

Year: 979 Days

Day: 11.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,083,175 km

• M1: 181,911 km (0.106 R)
• M2: 907,311 km (0.067 R)
• M3: 1,602,492 km (0.118 R)
• M4: 2,570,241 km (0.095 R)
• M5: 3,780,937 km (0.094 R)
• M6: 4,843,081 km (0.093 R)
• M7: 5,427,860 km (0.083 R)
• M8: 6,151,165 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.8

Radius: 12.3

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.3 AU - 1.46 AU

Year: 1047 Days

Day: 9.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,083,175 km

• M1: 153,039 km (0.12 R)
• M2: 641,775 km (0.059 R)
• M3: 1,129,165 km (0.08 R)
• M4: 1,677,441 km (0.106 R)
• M5: 2,078,064 km (0.084 R)
• M6: 2,821,117 km (0.098 R)
• M7: 3,262,730 km (0.109 R)
• M8: 3,896,426 km (0.112 R)
• M9: 4,592,206 km (0.069 R)
• M10: 6,579,015 km (0.101 R)
• M11: 7,012,101 km (0.046 R)
• M12: 8,178,964 km (0.099 R)
• M13: 8,794,709 km (0.105 R)
• M14: 11,196,353 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 754.9

Radius: 8.8

Gravity: 9.75 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.54 AU - 1.54 AU

Year: 1234 Days

Day: 10.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,083,175 km

• M1: 109,506 km (0.08 R)
• M2: 600,187 km (0.112 R)
• M3: 929,452 km (0.088 R)
• M4: 1,340,247 km (0.057 R)
• M5: 1,879,398 km (0.085 R)
• M6: 2,211,206 km (0.073 R)
• M7: 2,710,265 km (0.12 R)
• M8: 3,022,027 km (0.087 R)
• M9: 3,637,921 km (0.042 R)
• M10: 4,352,999 km (0.027 R)
• M11: 4,763,346 km (0.069 R)
• M12: 5,178,929 km (0.07 R)
• M13: 5,618,597 km (0.045 R)
• M14: 6,015,181 km (0.099 R)
• M15: 8,313,004 km (0.111 R)
• M16: 8,654,386 km (0.055 R)
• M17: 9,005,193 km (0.099 R)
• M18: 9,735,081 km (0.061 R)
• M19: 10,082,597 km (0.102 R)
• M20: 10,438,341 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.3

Radius: 14.4

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.36 AU - 1.72 AU

Year: 1234 Days

Day: 8.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,083,175 km

• M1: 179,069 km (0.053 R)
• M2: 638,484 km (0.081 R)
• M3: 1,263,204 km (0.084 R)
• M4: 1,738,327 km (0.093 R)
• M5: 2,579,965 km (0.111 R)
• M6: 3,837,784 km (0.063 R)
• M7: 4,751,528 km (0.086 R)
• M8: 5,211,092 km (0.042 R)
• M9: 6,087,437 km (0.042 R)
• M10: 6,819,419 km (0.092 R)
• M11: 7,331,193 km (0.066 R)
• M12: 9,701,572 km (0.084 R)
• M13: 10,445,821 km (0.059 R)
• M14: 11,227,619 km (0.038 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.7

Radius: 8.6

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.02 AU - 2.04 AU

Year: 1867 Days

Day: 6.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,083,175 km

• M1: 107,112 km (0.101 R)
• M2: 477,816 km (0.08 R)
• M3: 756,816 km (0.115 R)
• M4: 1,095,954 km (0.062 R)
• M5: 1,398,291 km (0.082 R)
• M6: 1,735,634 km (0.114 R)
• M7: 2,009,698 km (0.117 R)
• M8: 2,536,133 km (0.106 R)
• M9: 2,832,486 km (0.045 R)
• M10: 3,632,835 km (0.088 R)
• M11: 4,219,258 km (0.106 R)
• M12: 4,804,036 km (0.096 R)
• M13: 5,769,242 km (0.112 R)
• M14: 6,209,658 km (0.111 R)
• M15: 7,637,570 km (0.092 R)
• M16: 7,989,125 km (0.104 R)
• M17: 9,471,490 km (0.072 R)
• M18: 10,652,266 km (0.109 R)
• M19: 11,278,183 km (0.111 R)
• M20: 11,967,530 km (0.066 R)
• M21: 12,482,446 km (0.069 R)
• M22: 15,374,472 km (0.087 R)
• M23: 15,794,244 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.2

Radius: 9.2

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.66 AU - 2.72 AU

Year: 2093 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,083,175 km

• M1: 114,592 km (0.07 R)
• M2: 612,304 km (0.065 R)
• M3: 963,560 km (0.105 R)
• M4: 1,392,307 km (0.069 R)
• M5: 3,630,441 km (0.084 R)
• M6: 4,011,018 km (0.081 R)
• M7: 4,345,369 km (0.097 R)
• M8: 5,654,351 km (0.094 R)
• M9: 7,839,228 km (0.081 R)
• M10: 8,279,494 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 159.1

Radius: 6.9

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 7.14 AU - 8.5 AU

Year: 14120 Days

Day: 22.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 37,083,175 km

• M1: 85,869 km (0.114 R)
• M2: 305,180 km (0.098 R)
• M3: 572,062 km (0.085 R)
• M4: 872,156 km (0.106 R)
• M5: 1,797,568 km (0.034 R)
• M6: 2,383,244 km (0.057 R)
• M7: 3,663,502 km (0.112 R)
• M8: 4,358,983 km (0.073 R)
• M9: 6,513,790 km (0.083 R)
• M10: 6,829,891 km (0.103 R)
• M11: 7,156,164 km (0.098 R)
• M12: 7,918,514 km (0.096 R)
• M13: 12,029,614 km (0.11 R)
• M14: 12,452,377 km (0.074 R)
• M15: 16,008,319 km (0.032 R)
• M16: 18,188,708 km (0.028 R)
• M17: 19,099,609 km (0.026 R)
• M18: 22,250,140 km (0.114 R)
• M19: 23,618,213 km (0.096 R)
• M20: 25,730,684 km (0.032 R)
• M21: 26,788,042 km (0.098 R)
• M22: 27,874,122 km (0.113 R)
• M23: 29,557,846 km (0.112 R)
• M24: 31,308,142 km (0.114 R)
• M25: 34,166,508 km (0.11 R)
• M26: 36,311,592 km (0.102 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 20,106 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit