🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.2

Radius: 12.4

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.48 AU - 0.56 AU

Year: 254 Days

Day: 6.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,669,854 km

• M1: 154,684 km (0.088 R)
• M2: 642,373 km (0.065 R)
• M3: 1,396,496 km (0.094 R)
• M4: 1,864,887 km (0.117 R)
• M5: 2,745,869 km (0.077 R)
• M6: 3,216,504 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.5

Radius: 15

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.68 AU - 0.74 AU

Year: 406 Days

Day: 8.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,669,854 km

• M1: 186,698 km (0.11 R)
• M2: 684,261 km (0.049 R)
• M3: 1,256,473 km (0.06 R)
• M4: 2,006,407 km (0.107 R)
• M5: 2,752,601 km (0.113 R)
• M6: 3,414,871 km (0.075 R)
• M7: 4,088,659 km (0.105 R)
• M8: 4,702,160 km (0.091 R)
• M9: 5,393,003 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.9

Radius: 11.7

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.67 AU - 0.93 AU

Year: 485 Days

Day: 6.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,669,854 km

• M1: 145,559 km (0.116 R)
• M2: 655,538 km (0.102 R)
• M3: 1,121,386 km (0.111 R)
• M4: 1,507,498 km (0.067 R)
• M5: 2,453,555 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.1

Radius: 13

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.98 AU - 1.3 AU

Year: 826 Days

Day: 11.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 130.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,669,854 km

• M1: 161,715 km (0.114 R)
• M2: 576,401 km (0.104 R)
• M3: 1,326,185 km (0.032 R)
• M4: 1,838,558 km (0.069 R)
• M5: 2,522,370 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.9

Radius: 11.7

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.03 AU - 3.27 AU

Year: 3792 Days

Day: 5.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,669,854 km

• M1: 145,559 km (0.098 R)
• M2: 532,718 km (0.115 R)
• M3: 1,042,847 km (0.082 R)
• M4: 1,432,998 km (0.045 R)
• M5: 2,020,469 km (0.075 R)
• M6: 2,449,665 km (0.094 R)
• M7: 3,314,042 km (0.106 R)
• M8: 4,656,982 km (0.111 R)
• M9: 5,848,529 km (0.12 R)
• M10: 6,223,870 km (0.113 R)
• M11: 6,993,551 km (0.052 R)
• M12: 7,386,096 km (0.108 R)
• M13: 8,348,908 km (0.071 R)
• M14: 10,175,198 km (0.08 R)
• M15: 12,516,106 km (0.044 R)
• M16: 13,187,501 km (0.055 R)
• M17: 15,245,669 km (0.118 R)
• M18: 15,651,079 km (0.092 R)
• M19: 16,696,020 km (0.107 R)
• M20: 18,066,935 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.6

Radius: 13

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.93 AU - 4.99 AU

Year: 7492 Days

Day: 8.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,669,854 km

• M1: 166,353 km (0.04 R)
• M2: 1,549,086 km (0.073 R)
• M3: 2,291,690 km (0.101 R)
• M4: 2,950,519 km (0.069 R)
• M5: 3,391,234 km (0.109 R)
• M6: 3,900,316 km (0.101 R)
• M7: 4,816,004 km (0.106 R)
• M8: 5,310,126 km (0.083 R)
• M9: 6,643,043 km (0.12 R)
• M10: 7,751,862 km (0.046 R)
• M11: 9,329,222 km (0.11 R)
• M12: 13,165,809 km (0.095 R)
• M13: 16,870,301 km (0.073 R)
• M14: 17,470,189 km (0.069 R)
• M15: 18,361,643 km (0.08 R)
• M16: 19,067,894 km (0.091 R)
• M17: 20,761,192 km (0.07 R)
• M18: 24,024,969 km (0.078 R)
• M19: 31,350,927 km (0.107 R)
• M20: 33,287,022 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671

Radius: 7.3

Gravity: 12.59 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 7.94 AU - 11.64 AU

Year: 20776 Days

Day: 15.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,669,854 km

• M1: 90,956 km (0.047 R)
• M2: 357,389 km (0.106 R)
• M3: 937,829 km (0.063 R)
• M4: 1,329,775 km (0.093 R)
• M5: 1,580,950 km (0.075 R)
• M6: 2,223,174 km (0.061 R)
• M7: 3,053,741 km (0.062 R)
• M8: 4,239,005 km (0.074 R)
• M9: 7,479,894 km (0.102 R)
• M10: 9,480,615 km (0.031 R)
• M11: 11,747,622 km (0.074 R)
• M12: 12,901,171 km (0.064 R)
• M13: 25,193,179 km (0.111 R)
• M14: 25,968,395 km (0.111 R)
• M15: 30,956,736 km (0.066 R)
• M16: 35,572,878 km (0.093 R)
• M17: 41,693,076 km (0.11 R)
• M18: 44,517,933 km (0.116 R)
• M19: 49,333,339 km (0.101 R)
• M20: 69,230,005 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.2

Radius: 4.3

Gravity: 9.91 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 8.42 AU - 11.7 AU

Year: 21642 Days

Day: 24.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,669,854 km

• M1: 53,556 km (0.069 R)
• M2: 217,366 km (0.051 R)
• M3: 460,313 km (0.097 R)
• M4: 803,341 km (0.115 R)
• M5: 1,115,252 km (0.079 R)
• M6: 2,266,557 km (0.05 R)
• M7: 2,461,633 km (0.074 R)
• M8: 2,689,321 km (0.086 R)
• M9: 2,998,989 km (0.09 R)
• M10: 3,186,584 km (0.04 R)
• M11: 4,883,622 km (0.092 R)
• M12: 6,088,933 km (0.119 R)
• M13: 10,387,179 km (0.052 R)
• M14: 10,546,949 km (0.119 R)
• M15: 10,926,180 km (0.091 R)
• M16: 12,474,518 km (0.072 R)
• M17: 13,968,552 km (0.037 R)
• M18: 14,163,328 km (0.095 R)
• M19: 14,491,995 km (0.072 R)
• M20: 16,499,000 km (0.116 R)
• M21: 17,083,778 km (0.07 R)
• M22: 18,762,715 km (0.104 R)
• M23: 21,742,106 km (0.112 R)
• M24: 22,091,417 km (0.068 R)
• M25: 28,826,612 km (0.111 R)
• M26: 35,710,508 km (0.093 R)
• M27: 37,933,233 km (0.105 R)
• M28: 48,485,867 km (0.09 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 10,703 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit