🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.5

Radius: 14.2

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.76 AU - 0.9 AU

Year: 513 Days

Day: 14.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,978,097 km

• M1: 178,470 km (0.078 R)
• M2: 620,831 km (0.1 R)
• M3: 1,073,514 km (0.076 R)
• M4: 1,646,175 km (0.081 R)
• M5: 2,402,392 km (0.103 R)
• M6: 2,918,206 km (0.057 R)
• M7: 4,206,243 km (0.097 R)
• M8: 4,674,784 km (0.081 R)
• M9: 5,557,710 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.7

Radius: 11.4

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.88 AU - 1.2 AU

Year: 719 Days

Day: 10.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,978,097 km

• M1: 141,819 km (0.051 R)
• M2: 512,373 km (0.108 R)
• M3: 1,170,155 km (0.058 R)
• M4: 1,660,088 km (0.079 R)
• M5: 2,322,058 km (0.058 R)
• M6: 2,961,290 km (0.089 R)
• M7: 4,400,122 km (0.11 R)
• M8: 6,315,873 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10

Radius: 9

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.19 AU - 1.45 AU

Year: 1029 Days

Day: 14.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,978,097 km

• M1: 164,258 km (0.049 R)
• M2: 451,786 km (0.109 R)
• M3: 1,003,503 km (0.111 R)
• M4: 1,320,201 km (0.095 R)
• M5: 2,129,077 km (0.104 R)
• M6: 2,441,288 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.3

Radius: 12.9

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.17 AU - 1.87 AU

Year: 1271 Days

Day: 6.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,978,097 km

• M1: 160,519 km (0.108 R)
• M2: 592,707 km (0.083 R)
• M3: 1,606,232 km (0.096 R)
• M4: 2,129,226 km (0.119 R)
• M5: 3,360,267 km (0.113 R)
• M6: 3,776,598 km (0.096 R)
• M7: 5,278,710 km (0.117 R)
• M8: 5,888,172 km (0.113 R)
• M9: 8,923,513 km (0.073 R)
• M10: 9,667,463 km (0.101 R)
• M11: 11,518,587 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.4

Radius: 10.5

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.77 AU - 1.97 AU

Year: 1734 Days

Day: 12.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,978,097 km

• M1: 130,749 km (0.118 R)
• M2: 539,300 km (0.057 R)
• M3: 868,715 km (0.079 R)
• M4: 1,207,255 km (0.096 R)
• M5: 1,602,941 km (0.102 R)
• M6: 2,075,371 km (0.04 R)
• M7: 2,455,649 km (0.107 R)
• M8: 5,165,166 km (0.085 R)
• M9: 8,193,625 km (0.096 R)
• M10: 9,152,697 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.3

Radius: 10.4

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.22 AU - 2.96 AU

Year: 2827 Days

Day: 13.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,978,097 km

• M1: 129,402 km (0.046 R)
• M2: 461,210 km (0.117 R)
• M3: 1,215,782 km (0.068 R)
• M4: 1,641,089 km (0.081 R)
• M5: 2,054,278 km (0.08 R)
• M6: 2,691,266 km (0.116 R)
• M7: 4,000,546 km (0.089 R)
• M8: 4,564,081 km (0.108 R)
• M9: 4,935,084 km (0.109 R)
• M10: 6,336,068 km (0.091 R)
• M11: 7,051,445 km (0.082 R)
• M12: 7,874,982 km (0.107 R)
• M13: 8,295,800 km (0.046 R)
• M14: 9,305,586 km (0.041 R)
• M15: 9,649,362 km (0.066 R)
• M16: 10,131,665 km (0.071 R)
• M17: 10,731,702 km (0.109 R)
• M18: 12,149,890 km (0.103 R)
• M19: 12,904,013 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.1

Radius: 14.7

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.87 AU - 3.69 AU

Year: 4029 Days

Day: 7.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,978,097 km

• M1: 182,958 km (0.093 R)
• M2: 724,353 km (0.083 R)
• M3: 1,307,186 km (0.083 R)
• M4: 1,828,834 km (0.101 R)
• M5: 2,506,662 km (0.078 R)
• M6: 3,587,207 km (0.06 R)
• M7: 4,783,392 km (0.12 R)
• M8: 5,570,576 km (0.104 R)
• M9: 6,201,430 km (0.076 R)
• M10: 9,334,458 km (0.069 R)
• M11: 9,855,358 km (0.097 R)
• M12: 11,132,176 km (0.101 R)
• M13: 14,169,162 km (0.103 R)
• M14: 14,644,136 km (0.098 R)
• M15: 15,793,945 km (0.062 R)
• M16: 17,419,625 km (0.068 R)
• M17: 18,459,629 km (0.114 R)
• M18: 20,933,978 km (0.046 R)
• M19: 24,820,082 km (0.063 R)
• M20: 27,013,486 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.4

Radius: 13.8

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.55 AU - 5.81 AU

Year: 7996 Days

Day: 7.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,978,097 km

• M1: 171,888 km (0.109 R)
• M2: 614,548 km (0.111 R)
• M3: 1,123,031 km (0.096 R)
• M4: 1,804,150 km (0.081 R)
• M5: 4,640,227 km (0.062 R)
• M6: 5,907,470 km (0.087 R)
• M7: 6,551,788 km (0.085 R)
• M8: 7,019,282 km (0.065 R)
• M9: 8,684,904 km (0.056 R)
• M10: 9,161,673 km (0.069 R)
• M11: 10,215,739 km (0.119 R)
• M12: 11,196,503 km (0.082 R)
• M13: 17,336,897 km (0.058 R)
• M14: 19,900,556 km (0.084 R)
• M15: 23,365,542 km (0.09 R)
• M16: 25,153,236 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823.8

Radius: 5

Gravity: 32.95 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 9.02 AU - 10.32 AU

Year: 20395 Days

Day: 23.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 81,978,097 km

• M1: 62,382 km (0.106 R)
• M2: 222,153 km (0.106 R)
• M3: 471,832 km (0.102 R)
• M4: 831,764 km (0.083 R)
• M5: 1,085,033 km (0.098 R)
• M6: 1,342,042 km (0.112 R)
• M7: 1,860,399 km (0.111 R)
• M8: 2,059,963 km (0.103 R)
• M9: 2,746,467 km (0.077 R)
• M10: 3,032,798 km (0.068 R)
• M11: 4,884,071 km (0.114 R)
• M12: 7,427,684 km (0.097 R)
• M13: 9,178,129 km (0.03 R)
• M14: 9,817,959 km (0.106 R)
• M15: 10,118,501 km (0.113 R)
• M16: 12,119,971 km (0.115 R)
• M17: 16,127,698 km (0.063 R)
• M18: 18,655,602 km (0.101 R)
• M19: 20,253,757 km (0.029 R)
• M20: 20,838,983 km (0.118 R)
• M21: 25,705,701 km (0.093 R)
• M22: 28,039,129 km (0.043 R)
• M23: 28,400,857 km (0.079 R)
• M24: 31,798,075 km (0.093 R)
• M25: 38,935,539 km (0.088 R)
• M26: 42,476,670 km (0.117 R)
• M27: 42,635,393 km (0.062 R)
• M28: 47,240,016 km (0.064 R)
• M29: 47,923,827 km (0.058 R)
• M30: 51,082,287 km (0.088 R)
• M31: 52,347,287 km (0.081 R)
• M32: 56,842,553 km (0.117 R)
• M33: 72,309,926 km (0.109 R)
• M34: 80,755,474 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 175 - 15,622 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit