🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111

Radius: 11.6

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.46 AU - 0.62 AU

Year: 265 Days

Day: 11.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 41,616,465 km

• M1: 144,212 km (0.116 R)
• M2: 579,991 km (0.106 R)
• M3: 1,172,997 km (0.109 R)
• M4: 1,928,915 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.4

Radius: 8

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.75 AU - 0.77 AU

Year: 442 Days

Day: 10.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 41,616,465 km

• M1: 99,483 km (0.075 R)
• M2: 604,824 km (0.075 R)
• M3: 1,393,205 km (0.104 R)
• M4: 1,690,606 km (0.082 R)
• M5: 3,300,727 km (0.091 R)
• M6: 4,079,534 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.1

Radius: 10.3

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.73 AU - 0.85 AU

Year: 468 Days

Day: 8.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,616,465 km

• M1: 128,804 km (0.071 R)
• M2: 477,965 km (0.118 R)
• M3: 827,875 km (0.052 R)
• M4: 1,274,723 km (0.069 R)
• M5: 1,617,452 km (0.098 R)
• M6: 1,954,496 km (0.104 R)
• M7: 2,396,558 km (0.07 R)
• M8: 3,202,890 km (0.107 R)
• M9: 4,123,815 km (0.084 R)
• M10: 4,472,378 km (0.116 R)
• M11: 5,465,259 km (0.106 R)
• M12: 6,637,957 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.1

Radius: 10

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.04 AU - 1.08 AU

Year: 728 Days

Day: 7.7 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,616,465 km

• M1: 124,465 km (0.112 R)
• M2: 441,015 km (0.043 R)
• M3: 859,290 km (0.083 R)
• M4: 1,713,793 km (0.109 R)
• M5: 4,258,154 km (0.11 R)
• M6: 5,290,080 km (0.1 R)
• M7: 5,621,140 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.6

Radius: 10.1

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.19 AU - 1.31 AU

Year: 932 Days

Day: 7.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,616,465 km

• M1: 125,662 km (0.114 R)
• M2: 529,876 km (0.087 R)
• M3: 937,979 km (0.101 R)
• M4: 1,292,526 km (0.097 R)
• M5: 1,759,570 km (0.086 R)
• M6: 2,775,489 km (0.049 R)
• M7: 3,336,930 km (0.119 R)
• M8: 3,682,052 km (0.073 R)
• M9: 4,347,314 km (0.111 R)
• M10: 4,999,112 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.8

Radius: 10.3

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.09 AU - 1.41 AU

Year: 932 Days

Day: 13.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 94.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,616,465 km

• M1: 128,056 km (0.062 R)
• M2: 565,630 km (0.06 R)
• M3: 1,403,527 km (0.117 R)
• M4: 1,872,367 km (0.083 R)
• M5: 2,213,001 km (0.069 R)
• M6: 2,536,432 km (0.111 R)
• M7: 3,008,563 km (0.113 R)
• M8: 3,451,073 km (0.062 R)
• M9: 3,904,953 km (0.102 R)
• M10: 5,007,639 km (0.087 R)
• M11: 6,047,195 km (0.075 R)
• M12: 6,460,982 km (0.067 R)
• M13: 7,010,755 km (0.108 R)
• M14: 7,541,827 km (0.112 R)
• M15: 8,125,408 km (0.082 R)
• M16: 9,527,290 km (0.084 R)
• M17: 9,879,443 km (0.072 R)

Asteroid Belt

Center: 2.09 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.3

Radius: 13.5

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.22 AU - 3.64 AU

Year: 3344 Days

Day: 12.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,616,465 km

• M1: 170,990 km (0.093 R)
• M2: 602,431 km (0.111 R)
• M3: 1,874,013 km (0.074 R)
• M4: 2,845,950 km (0.112 R)
• M5: 3,726,184 km (0.084 R)
• M6: 4,879,284 km (0.111 R)
• M7: 5,338,998 km (0.103 R)
• M8: 6,739,982 km (0.065 R)
• M9: 7,214,507 km (0.083 R)
• M10: 8,020,391 km (0.117 R)
• M11: 8,811,015 km (0.11 R)
• M12: 9,535,069 km (0.12 R)
• M13: 10,093,817 km (0.076 R)
• M14: 10,886,985 km (0.071 R)
• M15: 12,931,539 km (0.057 R)
• M16: 15,220,985 km (0.113 R)
• M17: 15,654,669 km (0.098 R)
• M18: 16,208,331 km (0.1 R)
• M19: 16,775,157 km (0.064 R)
• M20: 18,739,826 km (0.112 R)
• M21: 19,554,536 km (0.072 R)
• M22: 20,787,372 km (0.097 R)
• M23: 21,660,425 km (0.119 R)
• M24: 23,264,713 km (0.066 R)
• M25: 23,768,409 km (0.073 R)
• M26: 25,474,722 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.4

Radius: 3.1

Gravity: 16.38 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.09 AU - 9.15 AU

Year: 16877 Days

Day: 20.4 Hours

Environment

Temp: -243 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 41,616,465 km

• M1: 42,037 km (0.118 R)
• M2: 187,446 km (0.028 R)
• M3: 386,411 km (0.103 R)
• M4: 524,939 km (0.092 R)
• M5: 672,742 km (0.111 R)
• M6: 794,963 km (0.101 R)
• M7: 912,697 km (0.099 R)
• M8: 1,031,777 km (0.082 R)
• M9: 1,313,469 km (0.078 R)
• M10: 1,994,588 km (0.11 R)
• M11: 2,302,012 km (0.054 R)
• M12: 2,739,586 km (0.091 R)
• M13: 2,841,761 km (0.104 R)
• M14: 3,230,267 km (0.112 R)
• M15: 3,980,949 km (0.048 R)
• M16: 4,870,458 km (0.103 R)
• M17: 5,684,719 km (0.102 R)
• M18: 7,738,548 km (0.119 R)
• M19: 7,860,770 km (0.119 R)
• M20: 8,025,627 km (0.087 R)
• M21: 9,200,269 km (0.111 R)
• M22: 9,709,949 km (0.109 R)
• M23: 11,615,676 km (0.099 R)
• M24: 13,637,940 km (0.099 R)
• M25: 16,615,237 km (0.114 R)
• M26: 20,772,562 km (0.096 R)
• M27: 22,381,188 km (0.075 R)
• M28: 26,208,649 km (0.11 R)
• M29: 32,099,066 km (0.079 R)
• M30: 32,626,398 km (0.109 R)
• M31: 36,138,657 km (0.061 R)
• M32: 38,338,793 km (0.064 R)
• M33: 41,367,551 km (0.066 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: 355 - 18,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit