🌌 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 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.21

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.53 AU - 0.67 AU

Year: 296 Days

Day: 30.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 45.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.5

Radius: 14.4

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.58 AU - 0.94 AU

Year: 421 Days

Day: 10.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,885,066 km

• M1: 179,218 km (0.103 R)
• M2: 740,061 km (0.06 R)
• M3: 1,189,153 km (0.099 R)
• M4: 1,727,706 km (0.045 R)
• M5: 2,205,671 km (0.102 R)
• M6: 2,907,584 km (0.102 R)
• M7: 3,616,678 km (0.069 R)
• M8: 4,081,030 km (0.082 R)
• M9: 4,531,918 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.9

Radius: 10

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.83 AU - 1.27 AU

Year: 684 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,885,066 km

• M1: 124,615 km (0.041 R)
• M2: 498,759 km (0.081 R)
• M3: 863,629 km (0.052 R)
• M4: 1,297,462 km (0.085 R)
• M5: 1,817,465 km (0.117 R)
• M6: 2,178,594 km (0.071 R)
• M7: 3,047,907 km (0.098 R)
• M8: 3,417,414 km (0.061 R)
• M9: 4,034,056 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.2

Radius: 12.5

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.37 AU - 1.41 AU

Year: 1042 Days

Day: 6.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,885,066 km

• M1: 155,582 km (0.061 R)
• M2: 564,732 km (0.08 R)
• M3: 1,131,857 km (0.071 R)
• M4: 1,560,605 km (0.119 R)
• M5: 2,370,378 km (0.061 R)
• M6: 3,102,361 km (0.104 R)
• M7: 3,734,860 km (0.105 R)
• M8: 4,203,251 km (0.096 R)
• M9: 6,098,058 km (0.105 R)
• M10: 7,353,184 km (0.099 R)
• M11: 8,827,621 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.7

Radius: 12.6

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.6 AU - 1.72 AU

Year: 1360 Days

Day: 12.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,885,066 km

• M1: 157,227 km (0.095 R)
• M2: 585,227 km (0.079 R)
• M3: 1,053,019 km (0.116 R)
• M4: 1,640,341 km (0.114 R)
• M5: 2,305,303 km (0.115 R)
• M6: 2,742,279 km (0.083 R)
• M7: 3,235,054 km (0.106 R)
• M8: 3,803,825 km (0.049 R)
• M9: 4,213,274 km (0.113 R)
• M10: 4,852,656 km (0.106 R)
• M11: 6,699,292 km (0.114 R)
• M12: 7,572,195 km (0.091 R)
• M13: 8,821,936 km (0.067 R)
• M14: 10,546,051 km (0.079 R)
• M15: 11,072,486 km (0.07 R)
• M16: 12,139,867 km (0.101 R)
• M17: 13,641,082 km (0.092 R)

Asteroid Belt

Center: 4.71 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.3

Radius: 5.8

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 6.88 AU - 8.62 AU

Year: 13718 Days

Day: 24.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,885,066 km

• M1: 72,256 km (0.104 R)
• M2: 270,473 km (0.111 R)
• M3: 684,111 km (0.077 R)
• M4: 915,988 km (0.118 R)
• M5: 1,200,074 km (0.12 R)
• M6: 1,485,058 km (0.079 R)
• M7: 2,048,892 km (0.097 R)
• M8: 2,418,549 km (0.118 R)
• M9: 4,809,572 km (0.099 R)
• M10: 5,774,328 km (0.079 R)
• M11: 6,665,483 km (0.083 R)
• M12: 7,602,115 km (0.108 R)
• M13: 8,258,401 km (0.115 R)
• M14: 9,386,070 km (0.105 R)
• M15: 12,828,317 km (0.108 R)
• M16: 13,442,565 km (0.081 R)
• M17: 14,531,339 km (0.114 R)
• M18: 16,308,262 km (0.097 R)
• M19: 17,620,236 km (0.076 R)
• M20: 18,225,209 km (0.093 R)
• M21: 19,717,598 km (0.094 R)
• M22: 23,847,397 km (0.118 R)
• M23: 25,533,813 km (0.101 R)
• M24: 25,822,388 km (0.101 R)
• M25: 26,308,282 km (0.12 R)
• M26: 39,619,500 km (0.045 R)
• M27: 47,552,974 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.6

Radius: 6.5

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 7.09 AU - 9.09 AU

Year: 14630 Days

Day: 16 Hours

Environment

Temp: -224 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 43,885,066 km

• M1: 80,932 km (0.082 R)
• M2: 319,691 km (0.072 R)
• M3: 586,424 km (0.112 R)
• M4: 2,040,515 km (0.102 R)
• M5: 2,354,072 km (0.058 R)
• M6: 2,580,563 km (0.088 R)
• M7: 4,805,084 km (0.103 R)
• M8: 5,622,337 km (0.112 R)
• M9: 5,857,355 km (0.053 R)
• M10: 9,732,987 km (0.059 R)
• M11: 10,369,825 km (0.1 R)
• M12: 10,621,898 km (0.08 R)
• M13: 11,456,504 km (0.105 R)
• M14: 13,373,900 km (0.048 R)
• M15: 15,891,782 km (0.108 R)
• M16: 17,051,464 km (0.112 R)
• M17: 18,560,757 km (0.108 R)
• M18: 19,538,380 km (0.105 R)
• M19: 21,028,524 km (0.088 R)
• M20: 21,925,064 km (0.115 R)
• M21: 23,969,020 km (0.109 R)
• M22: 25,858,740 km (0.058 R)
• M23: 26,416,441 km (0.038 R)
• M24: 28,137,564 km (0.033 R)
• M25: 31,695,899 km (0.056 R)
• M26: 32,334,533 km (0.091 R)
• M27: 32,549,355 km (0.1 R)
• M28: 33,308,564 km (0.083 R)
• M29: 39,322,548 km (0.057 R)
• M30: 39,567,290 km (0.113 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 513 - 16,340 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit