🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.8

Radius: 14.1

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.94 AU - 1.08 AU

Year: 677 Days

Day: 7.3 Hours

Environment

Temp: -169 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 44,485,291 km

• M1: 189,989 km (0.119 R)
• M2: 661,971 km (0.119 R)
• M3: 1,623,137 km (0.103 R)
• M4: 2,329,538 km (0.087 R)
• M5: 3,194,214 km (0.108 R)
• M6: 3,890,891 km (0.059 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492.3

Radius: 13.7

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.87 AU - 1.33 AU

Year: 769 Days

Day: 14.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,485,291 km

• M1: 170,542 km (0.11 R)
• M2: 690,095 km (0.116 R)
• M3: 1,307,635 km (0.089 R)
• M4: 2,731,508 km (0.112 R)
• M5: 3,336,631 km (0.093 R)
• M6: 4,059,637 km (0.097 R)
• M7: 4,608,662 km (0.095 R)
• M8: 5,707,907 km (0.051 R)
• M9: 6,439,440 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.2

Radius: 14.2

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.06 AU - 1.24 AU

Year: 822 Days

Day: 12.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,485,291 km

• M1: 176,825 km (0.105 R)
• M2: 1,771,837 km (0.116 R)
• M3: 2,464,625 km (0.106 R)
• M4: 3,333,639 km (0.097 R)
• M5: 4,355,692 km (0.101 R)
• M6: 5,003,301 km (0.079 R)
• M7: 6,140,544 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.6

Radius: 14.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.98 AU - 4.54 AU

Year: 5863 Days

Day: 8.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,485,291 km

• M1: 175,329 km (0.097 R)
• M2: 642,224 km (0.036 R)
• M3: 1,275,322 km (0.109 R)
• M4: 1,931,159 km (0.05 R)
• M5: 3,126,595 km (0.117 R)
• M6: 4,049,315 km (0.083 R)
• M7: 4,795,659 km (0.107 R)
• M8: 6,054,824 km (0.116 R)
• M9: 6,862,802 km (0.085 R)
• M10: 11,731,315 km (0.065 R)
• M11: 12,576,543 km (0.05 R)
• M12: 16,187,686 km (0.084 R)
• M13: 16,922,810 km (0.111 R)
• M14: 17,361,880 km (0.075 R)
• M15: 20,439,258 km (0.086 R)
• M16: 22,556,517 km (0.073 R)
• M17: 24,736,158 km (0.047 R)
• M18: 25,876,991 km (0.098 R)
• M19: 26,797,915 km (0.088 R)
• M20: 27,567,447 km (0.076 R)
• M21: 28,704,989 km (0.068 R)
• M22: 29,873,648 km (0.03 R)
• M23: 30,331,417 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.5

Radius: 12.4

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.37 AU - 5.17 AU

Year: 5884 Days

Day: 14.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,485,291 km

• M1: 154,235 km (0.095 R)
• M2: 574,755 km (0.106 R)
• M3: 1,199,925 km (0.113 R)
• M4: 1,660,387 km (0.1 R)
• M5: 2,270,896 km (0.078 R)
• M6: 3,246,274 km (0.049 R)
• M7: 3,945,644 km (0.115 R)
• M8: 4,796,557 km (0.115 R)
• M9: 5,265,995 km (0.037 R)
• M10: 5,949,956 km (0.081 R)
• M11: 7,138,810 km (0.104 R)
• M12: 8,053,601 km (0.07 R)
• M13: 8,638,978 km (0.04 R)
• M14: 9,086,126 km (0.106 R)
• M15: 9,591,617 km (0.119 R)
• M16: 13,402,324 km (0.087 R)
• M17: 14,450,706 km (0.087 R)
• M18: 16,585,916 km (0.03 R)
• M19: 19,749,911 km (0.09 R)
• M20: 26,729,100 km (0.061 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 482.6

Radius: 4.6

Gravity: 22.81 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 5.04 AU - 7.66 AU

Year: 10671 Days

Day: 20.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,485,291 km

• M1: 57,446 km (0.079 R)
• M2: 440,416 km (0.062 R)
• M3: 591,360 km (0.073 R)
• M4: 1,584,092 km (0.039 R)
• M5: 3,471,718 km (0.116 R)
• M6: 3,718,554 km (0.108 R)
• M7: 4,386,808 km (0.064 R)
• M8: 6,168,219 km (0.075 R)
• M9: 6,792,342 km (0.025 R)
• M10: 9,146,115 km (0.114 R)
• M11: 13,797,860 km (0.053 R)
• M12: 17,718,821 km (0.12 R)
• M13: 18,747,306 km (0.114 R)
• M14: 24,225,131 km (0.115 R)
• M15: 24,942,902 km (0.09 R)
• M16: 31,945,877 km (0.116 R)
• M17: 35,375,558 km (0.096 R)
• M18: 42,178,521 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 873.2

Radius: 4.1

Gravity: 51.95 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 5.53 AU - 8.09 AU

Year: 11851 Days

Day: 20.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 44,485,291 km

• M1: 51,013 km (0.117 R)
• M2: 194,028 km (0.096 R)
• M3: 516,262 km (0.095 R)
• M4: 970,591 km (0.032 R)
• M5: 1,368,970 km (0.071 R)
• M6: 2,972,659 km (0.117 R)
• M7: 3,800,684 km (0.109 R)
• M8: 4,058,889 km (0.068 R)
• M9: 4,452,332 km (0.083 R)
• M10: 5,822,648 km (0.108 R)
• M11: 6,127,080 km (0.093 R)
• M12: 6,603,400 km (0.071 R)
• M13: 7,233,057 km (0.09 R)
• M14: 9,568,429 km (0.11 R)
• M15: 9,778,764 km (0.113 R)
• M16: 9,938,535 km (0.098 R)
• M17: 12,801,090 km (0.062 R)
• M18: 13,977,228 km (0.073 R)
• M19: 14,660,891 km (0.102 R)
• M20: 17,697,877 km (0.109 R)
• M21: 18,906,179 km (0.063 R)
• M22: 21,217,765 km (0.118 R)
• M23: 26,290,031 km (0.029 R)
• M24: 29,824,579 km (0.11 R)
• M25: 30,612,960 km (0.097 R)
• M26: 33,061,429 km (0.073 R)
• M27: 40,632,876 km (0.101 R)
• M28: 43,583,993 km (0.111 R)
• M29: 43,872,268 km (0.102 R)
• M30: 45,332,792 km (0.103 R)
• M31: 46,224,545 km (0.078 R)
• M32: 46,976,574 km (0.027 R)
• M33: 48,043,057 km (0.088 R)
• M34: 48,196,694 km (0.112 R)
• M35: 51,983,465 km (0.089 R)
• M36: 56,989,758 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.7

Radius: 4.4

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.39 AU - 9.69 AU

Year: 16642 Days

Day: 24 Hours

Environment

Temp: -238 °C

Axial Tilt: 119.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 44,485,291 km

• M1: 55,800 km (0.081 R)
• M2: 313,856 km (0.073 R)
• M3: 817,702 km (0.105 R)
• M4: 968,646 km (0.055 R)
• M5: 2,435,453 km (0.043 R)
• M6: 3,006,319 km (0.085 R)
• M7: 3,393,777 km (0.099 R)
• M8: 5,378,492 km (0.066 R)
• M9: 7,983,440 km (0.106 R)
• M10: 22,463,616 km (0.119 R)
• M11: 26,957,237 km (0.077 R)
• M12: 31,694,702 km (0.12 R)
• M13: 33,646,805 km (0.1 R)
• M14: 35,105,534 km (0.079 R)
• M15: 37,550,113 km (0.109 R)
• M16: 37,788,572 km (0.1 R)
• M17: 42,645,267 km (0.115 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 19,376 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit