🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.56 AU - 0.66 AU

Year: 308 Days

Day: 46.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 61,578,689 km

• M1: 44,131 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.1

Radius: 8.2

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.66 AU - 0.94 AU

Year: 462 Days

Day: 14.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,578,689 km

• M1: 102,026 km (0.085 R)
• M2: 741,856 km (0.087 R)
• M3: 1,263,504 km (0.067 R)
• M4: 1,629,869 km (0.108 R)
• M5: 2,081,954 km (0.085 R)
• M6: 2,532,692 km (0.076 R)
• M7: 4,701,861 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.6

Radius: 14.8

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.89 AU - 1.05 AU

Year: 617 Days

Day: 13.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,578,689 km

• M1: 184,903 km (0.098 R)
• M2: 748,887 km (0.108 R)
• M3: 1,307,186 km (0.084 R)
• M4: 2,118,904 km (0.11 R)
• M5: 2,679,597 km (0.066 R)
• M6: 3,461,246 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.4

Radius: 12.2

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.16 AU - 1.18 AU

Year: 817 Days

Day: 5.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,578,689 km

• M1: 151,692 km (0.096 R)
• M2: 572,661 km (0.084 R)
• M3: 1,244,505 km (0.062 R)
• M4: 1,680,582 km (0.084 R)
• M5: 2,262,219 km (0.036 R)
• M6: 2,781,473 km (0.116 R)
• M7: 3,178,506 km (0.091 R)
• M8: 3,625,504 km (0.114 R)
• M9: 5,088,272 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.1

Radius: 13.6

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.61 AU - 2.03 AU

Year: 1585 Days

Day: 11.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,578,689 km

• M1: 169,494 km (0.092 R)
• M2: 758,611 km (0.057 R)
• M3: 1,418,337 km (0.07 R)
• M4: 2,035,429 km (0.116 R)
• M5: 2,547,353 km (0.071 R)
• M6: 3,071,095 km (0.115 R)
• M7: 3,518,841 km (0.11 R)
• M8: 5,217,675 km (0.083 R)
• M9: 6,046,447 km (0.095 R)
• M10: 7,144,196 km (0.084 R)
• M11: 8,109,102 km (0.116 R)
• M12: 8,758,955 km (0.088 R)
• M13: 9,700,973 km (0.107 R)
• M14: 10,814,131 km (0.046 R)
• M15: 11,639,014 km (0.112 R)
• M16: 12,974,474 km (0.096 R)
• M17: 13,414,591 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.3

Radius: 12.7

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.95 AU - 3.01 AU

Year: 2522 Days

Day: 6 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,578,689 km

• M1: 169,644 km (0.088 R)
• M2: 978,520 km (0.103 R)
• M3: 1,806,544 km (0.081 R)
• M4: 2,753,648 km (0.106 R)
• M5: 4,163,608 km (0.117 R)
• M6: 4,592,355 km (0.074 R)
• M7: 5,050,873 km (0.113 R)
• M8: 6,137,253 km (0.104 R)
• M9: 6,749,856 km (0.106 R)
• M10: 13,922,625 km (0.081 R)
• M11: 15,363,103 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 598.4

Radius: 6.9

Gravity: 12.57 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.21 AU - 9.49 AU

Year: 15579 Days

Day: 16.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 61,578,689 km

• M1: 87,515 km (0.061 R)
• M2: 501,003 km (0.04 R)
• M3: 824,284 km (0.117 R)
• M4: 1,217,278 km (0.099 R)
• M5: 1,494,333 km (0.088 R)
• M6: 1,971,401 km (0.104 R)
• M7: 2,255,786 km (0.07 R)
• M8: 2,502,772 km (0.112 R)
• M9: 2,860,311 km (0.079 R)
• M10: 3,789,912 km (0.118 R)
• M11: 4,480,905 km (0.05 R)
• M12: 4,974,877 km (0.045 R)
• M13: 6,634,516 km (0.104 R)
• M14: 9,502,307 km (0.062 R)
• M15: 10,884,891 km (0.119 R)
• M16: 12,208,383 km (0.112 R)
• M17: 12,460,007 km (0.095 R)
• M18: 13,104,325 km (0.119 R)
• M19: 13,501,507 km (0.087 R)
• M20: 17,051,315 km (0.109 R)
• M21: 17,366,069 km (0.094 R)
• M22: 18,006,946 km (0.089 R)
• M23: 18,746,708 km (0.119 R)
• M24: 19,678,104 km (0.077 R)
• M25: 20,551,456 km (0.102 R)
• M26: 21,450,240 km (0.117 R)
• M27: 26,445,463 km (0.084 R)
• M28: 28,599,074 km (0.037 R)
• M29: 37,055,991 km (0.096 R)
• M30: 42,565,531 km (0.095 R)
• M31: 44,319,117 km (0.026 R)
• M32: 44,615,919 km (0.075 R)
• M33: 48,754,544 km (0.1 R)
• M34: 55,862,238 km (0.053 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 15,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit