🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.4

Radius: 10.5

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.93 AU - 1.07 AU

Year: 690 Days

Day: 8.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 145.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,683,470 km

• M1: 130,599 km (0.115 R)
• M2: 465,249 km (0.1 R)
• M3: 818,450 km (0.115 R)
• M4: 1,145,471 km (0.109 R)
• M5: 1,511,537 km (0.112 R)
• M6: 1,852,022 km (0.07 R)
• M7: 2,524,165 km (0.095 R)
• M8: 3,019,783 km (0.11 R)
• M9: 4,129,200 km (0.084 R)
• M10: 4,920,573 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 513.8

Radius: 12.6

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.97 AU - 1.55 AU

Year: 976 Days

Day: 7.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,683,470 km

• M1: 156,779 km (0.111 R)
• M2: 635,342 km (0.041 R)
• M3: 1,129,464 km (0.111 R)
• M4: 2,049,491 km (0.026 R)
• M5: 2,886,790 km (0.074 R)
• M6: 3,558,784 km (0.108 R)
• M7: 4,236,462 km (0.116 R)
• M8: 5,365,627 km (0.094 R)
• M9: 6,363,594 km (0.056 R)
• M10: 7,744,233 km (0.111 R)
• M11: 8,137,376 km (0.104 R)
• M12: 9,098,243 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.8

Radius: 12.6

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.2 AU - 1.82 AU

Year: 1281 Days

Day: 6.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,683,470 km

• M1: 156,629 km (0.089 R)
• M2: 554,111 km (0.086 R)
• M3: 1,034,768 km (0.062 R)
• M4: 1,517,820 km (0.111 R)
• M5: 2,002,068 km (0.055 R)
• M6: 2,851,335 km (0.102 R)
• M7: 3,312,994 km (0.029 R)
• M8: 4,006,680 km (0.072 R)
• M9: 5,023,197 km (0.088 R)
• M10: 5,684,420 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836

Radius: 10.1

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.2 AU - 4.9 AU

Year: 6699 Days

Day: 7.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,683,470 km

• M1: 126,410 km (0.114 R)
• M2: 447,896 km (0.119 R)
• M3: 1,118,992 km (0.062 R)
• M4: 1,530,536 km (0.079 R)
• M5: 1,995,486 km (0.112 R)
• M6: 3,388,093 km (0.075 R)
• M7: 4,262,492 km (0.12 R)
• M8: 5,071,069 km (0.057 R)
• M9: 5,718,079 km (0.093 R)
• M10: 9,442,468 km (0.093 R)
• M11: 10,518,376 km (0.12 R)
• M12: 10,861,553 km (0.091 R)
• M13: 11,621,959 km (0.048 R)
• M14: 13,477,123 km (0.096 R)
• M15: 14,475,090 km (0.045 R)
• M16: 15,458,696 km (0.111 R)
• M17: 16,683,903 km (0.109 R)
• M18: 17,765,046 km (0.116 R)
• M19: 19,399,852 km (0.082 R)
• M20: 21,055,452 km (0.037 R)
• M21: 26,675,544 km (0.092 R)
• M22: 29,779,551 km (0.062 R)
• M23: 30,666,068 km (0.045 R)
• M24: 31,367,831 km (0.114 R)
• M25: 32,285,614 km (0.078 R)
• M26: 34,389,259 km (0.071 R)
• M27: 35,694,351 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.2

Radius: 13.2

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.53 AU - 4.97 AU

Year: 7146 Days

Day: 6.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,683,470 km

• M1: 164,258 km (0.104 R)
• M2: 591,211 km (0.096 R)
• M3: 1,116,599 km (0.091 R)
• M4: 1,956,291 km (0.099 R)
• M5: 2,375,016 km (0.096 R)
• M6: 2,854,327 km (0.085 R)
• M7: 3,438,507 km (0.104 R)
• M8: 3,856,932 km (0.073 R)
• M9: 4,848,467 km (0.104 R)
• M10: 5,886,078 km (0.073 R)
• M11: 6,837,969 km (0.12 R)
• M12: 8,776,159 km (0.072 R)
• M13: 9,893,057 km (0.067 R)
• M14: 10,356,810 km (0.093 R)
• M15: 11,373,926 km (0.098 R)
• M16: 13,401,725 km (0.063 R)
• M17: 17,179,670 km (0.06 R)
• M18: 25,016,354 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 968.4

Radius: 6.8

Gravity: 20.94 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.47 AU - 8.73 AU

Year: 13059 Days

Day: 18.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,683,470 km

• M1: 84,672 km (0.062 R)
• M2: 352,453 km (0.113 R)
• M3: 629,508 km (0.06 R)
• M4: 1,051,823 km (0.044 R)
• M5: 1,617,901 km (0.099 R)
• M6: 2,267,754 km (0.083 R)
• M7: 2,652,221 km (0.097 R)
• M8: 2,884,097 km (0.099 R)
• M9: 3,205,882 km (0.119 R)
• M10: 4,348,511 km (0.101 R)
• M11: 4,772,471 km (0.069 R)
• M12: 5,627,124 km (0.039 R)
• M13: 6,455,298 km (0.102 R)
• M14: 8,449,737 km (0.108 R)
• M15: 9,749,144 km (0.094 R)
• M16: 10,705,523 km (0.091 R)
• M17: 15,308,350 km (0.115 R)
• M18: 18,706,466 km (0.089 R)
• M19: 21,818,999 km (0.115 R)
• M20: 24,042,323 km (0.072 R)
• M21: 25,675,333 km (0.049 R)
• M22: 34,704,163 km (0.087 R)
• M23: 35,088,330 km (0.112 R)
• M24: 40,203,231 km (0.118 R)
• M25: 40,769,010 km (0.099 R)
• M26: 47,033,271 km (0.091 R)
• M27: 48,454,302 km (0.079 R)
• M28: 54,770,324 km (0.097 R)
• M29: 56,166,521 km (0.116 R)
• M30: 59,394,244 km (0.117 R)
• M31: 62,933,281 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 648.2

Radius: 5.6

Gravity: 20.67 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 6.66 AU - 10.94 AU

Year: 18019 Days

Day: 21.5 Hours

Environment

Temp: -244 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,683,470 km

• M1: 69,713 km (0.111 R)
• M2: 260,599 km (0.076 R)
• M3: 562,338 km (0.086 R)
• M4: 810,820 km (0.114 R)
• M5: 1,565,243 km (0.058 R)
• M6: 2,183,979 km (0.09 R)
• M7: 3,919,763 km (0.118 R)
• M8: 4,199,063 km (0.12 R)
• M9: 5,760,266 km (0.099 R)
• M10: 6,979,040 km (0.106 R)
• M11: 9,035,113 km (0.085 R)
• M12: 13,097,892 km (0.072 R)
• M13: 13,581,991 km (0.091 R)
• M14: 13,863,983 km (0.119 R)
• M15: 15,870,689 km (0.073 R)
• M16: 16,821,682 km (0.091 R)
• M17: 26,707,857 km (0.046 R)
• M18: 27,373,867 km (0.117 R)
• M19: 30,749,244 km (0.055 R)
• M20: 33,232,269 km (0.119 R)
• M21: 38,452,487 km (0.047 R)
• M22: 41,625,458 km (0.086 R)
• M23: 48,815,132 km (0.094 R)
• M24: 54,100,574 km (0.075 R)
• M25: 69,058,865 km (0.108 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 311 - 13,835 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit