🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491

Radius: 11.4

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.7 AU - 0.76 AU

Year: 409 Days

Day: 13 Hours

Environment

Temp: -131 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,739,522 km

• M1: 141,819 km (0.092 R)
• M2: 587,022 km (0.118 R)
• M3: 1,211,444 km (0.11 R)
• M4: 1,651,261 km (0.073 R)
• M5: 2,197,593 km (0.091 R)
• M6: 2,555,580 km (0.064 R)
• M7: 3,313,443 km (0.059 R)
• M8: 3,715,712 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589

Radius: 12.1

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.97 AU - 1.01 AU

Year: 646 Days

Day: 11.8 Hours

Environment

Temp: -153 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,739,522 km

• M1: 150,495 km (0.119 R)
• M2: 532,568 km (0.084 R)
• M3: 1,239,119 km (0.066 R)
• M4: 1,790,387 km (0.096 R)
• M5: 2,293,485 km (0.059 R)
• M6: 2,734,499 km (0.078 R)
• M7: 3,269,162 km (0.106 R)
• M8: 4,028,072 km (0.071 R)
• M9: 5,970,601 km (0.082 R)
• M10: 6,570,937 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333.1

Radius: 10.1

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.09 AU - 1.63 AU

Year: 1040 Days

Day: 6.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,739,522 km

• M1: 125,812 km (0.115 R)
• M2: 459,864 km (0.106 R)
• M3: 825,182 km (0.059 R)
• M4: 1,202,318 km (0.105 R)
• M5: 2,017,327 km (0.091 R)
• M6: 2,573,532 km (0.036 R)
• M7: 3,064,961 km (0.117 R)
• M8: 3,507,771 km (0.082 R)
• M9: 3,993,066 km (0.117 R)
• M10: 4,555,106 km (0.099 R)
• M11: 5,115,948 km (0.085 R)
• M12: 5,571,025 km (0.091 R)
• M13: 5,974,041 km (0.099 R)
• M14: 6,646,633 km (0.062 R)
• M15: 7,414,370 km (0.095 R)
• M16: 8,166,997 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.8

Radius: 11.2

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.74 AU - 4.04 AU

Year: 5033 Days

Day: 8.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,739,522 km

• M1: 139,276 km (0.09 R)
• M2: 487,839 km (0.077 R)
• M3: 1,197,232 km (0.076 R)
• M4: 1,698,983 km (0.07 R)
• M5: 2,084,946 km (0.09 R)
• M6: 2,465,074 km (0.044 R)
• M7: 3,593,042 km (0.092 R)
• M8: 4,167,497 km (0.116 R)
• M9: 5,279,010 km (0.074 R)
• M10: 5,993,190 km (0.042 R)
• M11: 6,641,996 km (0.119 R)
• M12: 7,100,065 km (0.113 R)
• M13: 8,079,781 km (0.104 R)
• M14: 8,564,179 km (0.112 R)
• M15: 9,387,865 km (0.104 R)
• M16: 10,699,240 km (0.119 R)
• M17: 11,101,808 km (0.098 R)
• M18: 12,225,437 km (0.079 R)
• M19: 13,474,729 km (0.091 R)
• M20: 14,972,952 km (0.111 R)
• M21: 15,420,698 km (0.112 R)
• M22: 16,579,483 km (0.082 R)
• M23: 17,795,265 km (0.092 R)
• M24: 19,265,812 km (0.054 R)
• M25: 20,132,133 km (0.115 R)
• M26: 20,746,831 km (0.116 R)
• M27: 23,182,883 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.4

Radius: 13.8

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.34 AU - 4.72 AU

Year: 5307 Days

Day: 13.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,739,522 km

• M1: 171,738 km (0.102 R)
• M2: 937,380 km (0.08 R)
• M3: 1,384,079 km (0.083 R)
• M4: 2,221,528 km (0.074 R)
• M5: 5,329,125 km (0.038 R)
• M6: 6,972,906 km (0.031 R)
• M7: 8,621,774 km (0.087 R)
• M8: 9,787,141 km (0.05 R)
• M9: 10,873,820 km (0.106 R)
• M10: 12,136,277 km (0.077 R)
• M11: 15,574,186 km (0.114 R)
• M12: 16,811,360 km (0.116 R)
• M13: 18,497,029 km (0.086 R)
• M14: 20,916,625 km (0.036 R)
• M15: 26,458,029 km (0.042 R)
• M16: 26,953,048 km (0.072 R)
• M17: 27,454,052 km (0.07 R)
• M18: 29,169,490 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.5

Radius: 12.7

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 5.05 AU - 5.33 AU

Year: 7756 Days

Day: 9.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,739,522 km

• M1: 159,920 km (0.047 R)
• M2: 738,265 km (0.059 R)
• M3: 1,474,287 km (0.05 R)
• M4: 2,240,378 km (0.047 R)
• M5: 2,661,346 km (0.108 R)
• M6: 5,131,805 km (0.117 R)
• M7: 6,448,715 km (0.108 R)
• M8: 6,853,677 km (0.05 R)
• M9: 9,099,141 km (0.106 R)
• M10: 9,784,449 km (0.068 R)
• M11: 10,971,209 km (0.093 R)
• M12: 13,088,019 km (0.106 R)
• M13: 15,886,695 km (0.086 R)
• M14: 17,719,419 km (0.098 R)
• M15: 18,993,993 km (0.107 R)
• M16: 21,277,754 km (0.075 R)
• M17: 23,500,479 km (0.115 R)
• M18: 24,464,039 km (0.087 R)
• M19: 26,043,344 km (0.046 R)
• M20: 28,403,101 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.2

Radius: 6.7

Gravity: 12.15 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 8.12 AU - 9.8 AU

Year: 17594 Days

Day: 15.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,739,522 km

• M1: 83,326 km (0.073 R)
• M2: 616,194 km (0.083 R)
• M3: 1,327,831 km (0.073 R)
• M4: 2,262,069 km (0.107 R)
• M5: 2,975,950 km (0.116 R)
• M6: 3,411,729 km (0.053 R)
• M7: 4,907,857 km (0.047 R)
• M8: 6,459,187 km (0.078 R)
• M9: 7,830,701 km (0.085 R)
• M10: 9,654,747 km (0.025 R)
• M11: 10,492,346 km (0.113 R)
• M12: 12,311,007 km (0.118 R)
• M13: 14,759,027 km (0.098 R)
• M14: 15,196,451 km (0.079 R)
• M15: 19,269,403 km (0.072 R)
• M16: 22,932,456 km (0.075 R)
• M17: 29,486,189 km (0.103 R)
• M18: 32,325,856 km (0.097 R)
• M19: 35,342,796 km (0.099 R)
• M20: 36,125,343 km (0.077 R)
• M21: 37,724,993 km (0.118 R)
• M22: 48,645,936 km (0.098 R)
• M23: 50,266,381 km (0.113 R)
• M24: 52,257,977 km (0.027 R)
• M25: 55,343,134 km (0.072 R)
• M26: 63,391,200 km (0.078 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: 232 - 10,738 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit