🌌 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: 978.5

Radius: 13.8

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.45 AU - 0.69 AU

Year: 292 Days

Day: 13.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,509,838 km

• M1: 171,589 km (0.107 R)
• M2: 619,335 km (0.115 R)
• M3: 1,208,152 km (0.088 R)
• M4: 1,692,700 km (0.066 R)
• M5: 2,317,121 km (0.089 R)
• M6: 2,969,069 km (0.098 R)
• M7: 3,646,598 km (0.12 R)
• M8: 4,412,090 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.7

Radius: 10

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.59 AU - 0.61 AU

Year: 315 Days

Day: 14.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,509,838 km

• M1: 124,765 km (0.084 R)
• M2: 622,178 km (0.082 R)
• M3: 1,028,037 km (0.11 R)
• M4: 1,760,617 km (0.072 R)
• M5: 2,486,616 km (0.097 R)
• M6: 2,967,872 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 417.8

Radius: 9.2

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.42 AU - 2.7 AU

Year: 2778 Days

Day: 14.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 89.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 54,509,838 km

• M1: 114,442 km (0.097 R)
• M2: 464,202 km (0.105 R)
• M3: 802,144 km (0.1 R)
• M4: 1,103,284 km (0.062 R)
• M5: 1,397,244 km (0.076 R)
• M6: 1,809,835 km (0.099 R)
• M7: 2,602,255 km (0.07 R)
• M8: 2,959,345 km (0.112 R)
• M9: 3,365,952 km (0.083 R)
• M10: 4,036,001 km (0.074 R)
• M11: 4,727,891 km (0.1 R)
• M12: 7,109,639 km (0.097 R)
• M13: 10,195,843 km (0.102 R)
• M14: 10,785,109 km (0.11 R)
• M15: 13,241,955 km (0.052 R)
• M16: 14,440,084 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.9

Radius: 13

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.86 AU - 4.2 AU

Year: 4498 Days

Day: 12.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,509,838 km

• M1: 161,865 km (0.111 R)
• M2: 604,226 km (0.111 R)
• M3: 1,150,557 km (0.081 R)
• M4: 1,927,269 km (0.103 R)
• M5: 2,451,012 km (0.069 R)
• M6: 3,680,257 km (0.028 R)
• M7: 6,386,483 km (0.078 R)
• M8: 8,035,650 km (0.117 R)
• M9: 8,450,634 km (0.051 R)
• M10: 9,572,319 km (0.111 R)
• M11: 13,220,113 km (0.084 R)
• M12: 14,954,252 km (0.105 R)
• M13: 17,580,143 km (0.111 R)
• M14: 19,135,363 km (0.097 R)
• M15: 20,639,719 km (0.07 R)
• M16: 23,117,957 km (0.073 R)
• M17: 23,960,493 km (0.112 R)
• M18: 24,665,099 km (0.049 R)
• M19: 25,788,429 km (0.096 R)
• M20: 26,445,463 km (0.118 R)
• M21: 29,186,096 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65

Radius: 12.7

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.47 AU - 3.93 AU

Year: 4827 Days

Day: 5.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 54,509,838 km

• M1: 158,424 km (0.075 R)
• M2: 964,906 km (0.052 R)
• M3: 1,547,141 km (0.108 R)
• M4: 3,146,193 km (0.114 R)
• M5: 3,742,191 km (0.099 R)
• M6: 4,357,038 km (0.069 R)
• M7: 5,545,593 km (0.118 R)
• M8: 6,467,415 km (0.1 R)
• M9: 7,223,782 km (0.048 R)
• M10: 7,982,094 km (0.066 R)
• M11: 12,255,058 km (0.041 R)
• M12: 13,215,625 km (0.043 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.6

Radius: 5

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.87 AU - 6.57 AU

Year: 9279 Days

Day: 23.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,509,838 km

• M1: 62,233 km (0.061 R)
• M2: 380,876 km (0.071 R)
• M3: 964,757 km (0.11 R)
• M4: 1,320,949 km (0.108 R)
• M5: 1,733,540 km (0.097 R)
• M6: 1,912,609 km (0.108 R)
• M7: 2,923,741 km (0.108 R)
• M8: 6,501,224 km (0.112 R)
• M9: 8,162,957 km (0.086 R)
• M10: 8,393,637 km (0.103 R)
• M11: 10,715,695 km (0.078 R)
• M12: 13,327,525 km (0.067 R)
• M13: 15,617,719 km (0.088 R)
• M14: 19,902,950 km (0.092 R)
• M15: 21,464,901 km (0.089 R)
• M16: 22,500,417 km (0.118 R)
• M17: 23,801,919 km (0.082 R)
• M18: 27,145,880 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.3

Radius: 6.2

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.77 AU - 9.43 AU

Year: 17106 Days

Day: 15 Hours

Environment

Temp: -225 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,509,838 km

• M1: 77,791 km (0.111 R)
• M2: 1,011,880 km (0.089 R)
• M3: 1,460,374 km (0.094 R)
• M4: 1,928,466 km (0.089 R)
• M5: 3,560,729 km (0.058 R)
• M6: 9,182,766 km (0.086 R)
• M7: 14,212,994 km (0.075 R)
• M8: 14,413,306 km (0.102 R)
• M9: 16,012,507 km (0.085 R)
• M10: 25,121,522 km (0.066 R)
• M11: 25,710,040 km (0.103 R)
• M12: 27,738,138 km (0.036 R)
• M13: 34,338,246 km (0.064 R)
• M14: 40,023,714 km (0.062 R)
• M15: 42,325,127 km (0.111 R)
• M16: 43,158,088 km (0.105 R)
• M17: 44,001,820 km (0.111 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: 501 - 16,168 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit