🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.1

Radius: 11.5

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.59 AU - 0.61 AU

Year: 315 Days

Day: 11.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,290,069 km

• M1: 143,016 km (0.096 R)
• M2: 501,302 km (0.101 R)
• M3: 878,289 km (0.086 R)
• M4: 1,391,859 km (0.079 R)
• M5: 2,325,648 km (0.084 R)
• M6: 2,767,561 km (0.102 R)
• M7: 3,233,708 km (0.077 R)
• M8: 3,694,469 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.2

Radius: 9.4

Gravity: 9.49 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.48 AU - 0.78 AU

Year: 339 Days

Day: 8.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,290,069 km

• M1: 117,135 km (0.098 R)
• M2: 412,142 km (0.098 R)
• M3: 746,493 km (0.073 R)
• M4: 1,110,764 km (0.079 R)
• M5: 2,487,962 km (0.097 R)
• M6: 3,035,490 km (0.09 R)
• M7: 3,355,480 km (0.09 R)
• M8: 3,821,478 km (0.074 R)
• M9: 4,129,350 km (0.103 R)
• M10: 4,426,003 km (0.095 R)
• M11: 5,184,913 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533

Radius: 13.9

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.58 AU - 0.7 AU

Year: 347 Days

Day: 12.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,290,069 km

• M1: 172,935 km (0.104 R)
• M2: 717,771 km (0.065 R)
• M3: 1,183,768 km (0.077 R)
• M4: 1,902,436 km (0.096 R)
• M5: 2,495,741 km (0.079 R)
• M6: 2,968,171 km (0.029 R)
• M7: 3,891,041 km (0.096 R)
• M8: 4,466,095 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.3

Radius: 14.1

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.6 AU - 0.88 AU

Year: 432 Days

Day: 10.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,290,069 km

• M1: 175,329 km (0.051 R)
• M2: 644,318 km (0.114 R)
• M3: 1,259,913 km (0.084 R)
• M4: 2,184,129 km (0.034 R)
• M5: 2,675,857 km (0.047 R)
• M6: 3,276,343 km (0.038 R)
• M7: 4,360,030 km (0.117 R)
• M8: 5,340,794 km (0.089 R)
• M9: 5,979,427 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.7

Radius: 11.2

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.73 AU - 1.15 AU

Year: 618 Days

Day: 14.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 51,290,069 km

• M1: 139,276 km (0.052 R)
• M2: 514,467 km (0.032 R)
• M3: 1,116,449 km (0.119 R)
• M4: 1,563,747 km (0.068 R)
• M5: 2,165,130 km (0.102 R)
• M6: 2,883,200 km (0.067 R)
• M7: 3,316,286 km (0.118 R)
• M8: 3,979,603 km (0.088 R)
• M9: 4,372,297 km (0.036 R)
• M10: 5,010,033 km (0.039 R)
• M11: 5,468,849 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.6

Radius: 9.7

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.44 AU - 1.6 AU

Year: 1271 Days

Day: 7.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,290,069 km

• M1: 120,576 km (0.071 R)
• M2: 460,163 km (0.091 R)
• M3: 868,565 km (0.096 R)
• M4: 1,259,764 km (0.086 R)
• M5: 1,659,639 km (0.103 R)
• M6: 2,440,839 km (0.09 R)
• M7: 3,980,500 km (0.063 R)
• M8: 4,305,427 km (0.063 R)
• M9: 4,681,665 km (0.063 R)
• M10: 5,904,778 km (0.119 R)
• M11: 6,225,964 km (0.065 R)
• M12: 6,969,765 km (0.109 R)
• M13: 8,356,238 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.8

Radius: 9

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.79 AU - 2.03 AU

Year: 1790 Days

Day: 8.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,290,069 km

• M1: 112,198 km (0.115 R)
• M2: 539,450 km (0.041 R)
• M3: 822,938 km (0.093 R)
• M4: 1,171,052 km (0.055 R)
• M5: 1,779,766 km (0.113 R)
• M6: 2,572,335 km (0.081 R)
• M7: 3,515,101 km (0.041 R)
• M8: 4,901,574 km (0.109 R)
• M9: 5,270,931 km (0.11 R)
• M10: 5,992,592 km (0.089 R)
• M11: 7,921,506 km (0.074 R)
• M12: 8,554,305 km (0.071 R)
• M13: 8,994,722 km (0.109 R)
• M14: 9,583,090 km (0.044 R)
• M15: 10,656,305 km (0.086 R)
• M16: 11,277,884 km (0.083 R)
• M17: 11,962,145 km (0.077 R)
• M18: 13,329,619 km (0.071 R)
• M19: 13,666,065 km (0.078 R)
• M20: 14,664,930 km (0.103 R)
• M21: 15,159,351 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154

Radius: 5.9

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 6.09 AU - 6.11 AU

Year: 10218 Days

Day: 23.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 51,290,069 km

• M1: 97,837 km (0.113 R)
• M2: 391,797 km (0.095 R)
• M3: 807,679 km (0.097 R)
• M4: 1,095,206 km (0.112 R)
• M5: 1,327,232 km (0.093 R)
• M6: 1,567,337 km (0.068 R)
• M7: 2,981,934 km (0.067 R)
• M8: 3,355,779 km (0.119 R)
• M9: 3,607,553 km (0.109 R)
• M10: 4,953,933 km (0.057 R)
• M11: 7,309,053 km (0.056 R)
• M12: 8,553,258 km (0.116 R)
• M13: 9,225,551 km (0.095 R)
• M14: 9,932,401 km (0.048 R)
• M15: 11,313,489 km (0.111 R)
• M16: 13,486,697 km (0.084 R)
• M17: 15,402,746 km (0.087 R)
• M18: 16,099,424 km (0.085 R)
• M19: 21,719,217 km (0.077 R)
• M20: 25,925,161 km (0.094 R)
• M21: 27,664,685 km (0.034 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.3

Radius: 7

Gravity: 16.01 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.47 AU - 6.83 AU

Year: 10344 Days

Day: 17.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 51,290,069 km

• M1: 87,066 km (0.058 R)
• M2: 400,922 km (0.078 R)
• M3: 803,789 km (0.065 R)
• M4: 1,414,897 km (0.06 R)
• M5: 1,893,909 km (0.092 R)
• M6: 2,680,644 km (0.096 R)
• M7: 3,009,012 km (0.071 R)
• M8: 5,301,898 km (0.037 R)
• M9: 7,121,756 km (0.076 R)
• M10: 10,603,048 km (0.106 R)
• M11: 15,212,907 km (0.101 R)
• M12: 16,186,938 km (0.071 R)
• M13: 20,584,368 km (0.088 R)
• M14: 21,174,083 km (0.096 R)
• M15: 22,035,766 km (0.118 R)
• M16: 22,831,178 km (0.086 R)
• M17: 24,667,043 km (0.105 R)
• M18: 26,698,134 km (0.095 R)
• M19: 28,733,861 km (0.114 R)
• M20: 31,532,090 km (0.1 R)
• M21: 33,111,544 km (0.078 R)
• M22: 37,165,796 km (0.056 R)
• M23: 49,920,061 km (0.056 R)
• M24: 50,373,941 km (0.086 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 185 - 12,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit