🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.39 AU - 0.65 AU

Year: 242 Days

Day: 15.1 Hours

Environment

Temp: -110 °C

Axial Tilt: 41.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,847,626 km

• M1: 13,763 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.4

Radius: 12.2

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.78 AU - 1 AU

Year: 542 Days

Day: 10.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,847,626 km

• M1: 151,842 km (0.094 R)
• M2: 551,119 km (0.099 R)
• M3: 936,632 km (0.076 R)
• M4: 2,110,527 km (0.084 R)
• M5: 2,960,392 km (0.117 R)
• M6: 3,597,978 km (0.099 R)
• M7: 4,354,794 km (0.119 R)
• M8: 5,148,710 km (0.038 R)
• M9: 5,694,593 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.4

Radius: 11.7

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.18 AU - 2.28 AU

Year: 2150 Days

Day: 13.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,847,626 km

• M1: 147,653 km (0.09 R)
• M2: 939,624 km (0.092 R)
• M3: 1,469,350 km (0.12 R)
• M4: 2,115,314 km (0.115 R)
• M5: 3,639,716 km (0.088 R)
• M6: 4,097,785 km (0.1 R)
• M7: 8,066,916 km (0.097 R)
• M8: 9,121,730 km (0.05 R)
• M9: 9,682,573 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.8

Radius: 12.6

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.57 AU - 4.35 AU

Year: 5088 Days

Day: 8.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,847,626 km

• M1: 160,967 km (0.105 R)
• M2: 703,708 km (0.111 R)
• M3: 1,097,600 km (0.056 R)
• M4: 2,185,924 km (0.043 R)
• M5: 3,178,955 km (0.115 R)
• M6: 3,610,993 km (0.093 R)
• M7: 4,120,075 km (0.074 R)
• M8: 4,677,028 km (0.076 R)
• M9: 6,292,086 km (0.041 R)
• M10: 6,708,567 km (0.114 R)
• M11: 8,344,569 km (0.092 R)
• M12: 11,873,433 km (0.051 R)
• M13: 13,088,916 km (0.071 R)
• M14: 14,927,474 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.2

Radius: 13.8

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.01 AU - 4.85 AU

Year: 6020 Days

Day: 5.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 51 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,847,626 km

• M1: 175,179 km (0.053 R)
• M2: 730,935 km (0.072 R)
• M3: 1,194,689 km (0.11 R)
• M4: 1,674,299 km (0.105 R)
• M5: 2,489,309 km (0.105 R)
• M6: 3,075,882 km (0.12 R)
• M7: 4,043,481 km (0.07 R)
• M8: 4,739,859 km (0.046 R)
• M9: 5,410,357 km (0.084 R)
• M10: 6,171,959 km (0.115 R)
• M11: 8,496,561 km (0.087 R)
• M12: 9,680,628 km (0.116 R)
• M13: 10,232,046 km (0.081 R)
• M14: 11,791,304 km (0.061 R)
• M15: 12,697,568 km (0.1 R)
• M16: 14,093,466 km (0.049 R)
• M17: 14,546,897 km (0.034 R)
• M18: 15,062,112 km (0.09 R)
• M19: 16,849,358 km (0.069 R)
• M20: 20,776,751 km (0.109 R)
• M21: 23,335,622 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.7

Radius: 13.2

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 4.55 AU - 4.63 AU

Year: 6349 Days

Day: 6 Hours

Environment

Temp: -217 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,847,626 km

• M1: 167,849 km (0.109 R)
• M2: 586,424 km (0.118 R)
• M3: 1,149,510 km (0.058 R)
• M4: 2,701,887 km (0.065 R)
• M5: 3,276,941 km (0.051 R)
• M6: 4,304,828 km (0.096 R)
• M7: 4,751,677 km (0.067 R)
• M8: 5,202,116 km (0.113 R)
• M9: 7,684,394 km (0.109 R)
• M10: 9,004,296 km (0.088 R)
• M11: 10,165,026 km (0.088 R)
• M12: 11,007,860 km (0.062 R)
• M13: 13,553,866 km (0.099 R)
• M14: 15,359,961 km (0.107 R)
• M15: 16,892,292 km (0.081 R)
• M16: 24,359,320 km (0.114 R)
• M17: 24,908,045 km (0.099 R)
• M18: 28,031,799 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.5

Radius: 5.7

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 9.55 AU - 9.79 AU

Year: 19416 Days

Day: 20.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,847,626 km

• M1: 74,201 km (0.098 R)
• M2: 771,177 km (0.074 R)
• M3: 2,945,582 km (0.097 R)
• M4: 3,347,701 km (0.047 R)
• M5: 4,556,153 km (0.071 R)
• M6: 16,098,975 km (0.097 R)
• M7: 17,498,762 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.9

Radius: 6.5

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 8.68 AU - 11.4 AU

Year: 20541 Days

Day: 20.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,847,626 km

• M1: 81,082 km (0.06 R)
• M2: 606,919 km (0.082 R)
• M3: 891,454 km (0.12 R)
• M4: 1,433,746 km (0.102 R)
• M5: 2,097,512 km (0.114 R)
• M6: 4,103,320 km (0.045 R)
• M7: 4,353,298 km (0.061 R)
• M8: 5,023,347 km (0.119 R)
• M9: 5,309,827 km (0.12 R)
• M10: 6,908,878 km (0.093 R)
• M11: 9,011,776 km (0.115 R)
• M12: 9,706,658 km (0.105 R)
• M13: 10,610,229 km (0.117 R)
• M14: 11,384,847 km (0.09 R)
• M15: 14,144,927 km (0.098 R)
• M16: 17,893,102 km (0.087 R)
• M17: 18,393,208 km (0.111 R)
• M18: 20,307,163 km (0.101 R)
• M19: 23,027,750 km (0.034 R)
• M20: 23,421,192 km (0.039 R)
• M21: 28,837,084 km (0.09 R)
• M22: 29,179,364 km (0.081 R)
• M23: 34,006,588 km (0.055 R)
• M24: 35,814,478 km (0.048 R)
• M25: 38,231,681 km (0.096 R)
• M26: 45,822,127 km (0.077 R)
• M27: 55,582,042 km (0.091 R)
• M28: 56,467,661 km (0.029 R)
• M29: 59,733,831 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: 409 - 19,706 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit