🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.5

Radius: 10.9

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.58 AU - 0.62 AU

Year: 315 Days

Day: 11.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,979,613 km

• M1: 135,536 km (0.105 R)
• M2: 516,412 km (0.12 R)
• M3: 1,007,392 km (0.104 R)
• M4: 1,519,017 km (0.075 R)
• M5: 1,864,887 km (0.061 R)
• M6: 2,286,005 km (0.104 R)
• M7: 2,770,403 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.2

Radius: 12.4

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.93 AU - 1.19 AU

Year: 740 Days

Day: 7.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,979,613 km

• M1: 155,432 km (0.101 R)
• M2: 569,369 km (0.096 R)
• M3: 1,003,652 km (0.08 R)
• M4: 1,449,454 km (0.092 R)
• M5: 2,046,798 km (0.119 R)
• M6: 2,727,319 km (0.116 R)
• M7: 4,252,619 km (0.113 R)
• M8: 5,312,819 km (0.103 R)
• M9: 5,942,775 km (0.085 R)
• M10: 6,743,573 km (0.117 R)
• M11: 7,223,483 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.7

Radius: 13.8

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.9 AU - 2.28 AU

Year: 2049 Days

Day: 10.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,979,613 km

• M1: 171,589 km (0.074 R)
• M2: 981,811 km (0.073 R)
• M3: 1,838,857 km (0.116 R)
• M4: 2,283,911 km (0.051 R)
• M5: 3,315,238 km (0.046 R)
• M6: 4,003,089 km (0.073 R)
• M7: 4,493,022 km (0.089 R)
• M8: 5,291,875 km (0.088 R)
• M9: 6,133,064 km (0.098 R)
• M10: 7,033,793 km (0.079 R)
• M11: 7,633,082 km (0.088 R)
• M12: 8,297,296 km (0.104 R)
• M13: 8,967,046 km (0.104 R)
• M14: 10,234,738 km (0.093 R)
• M15: 11,194,857 km (0.099 R)
• M16: 14,482,719 km (0.079 R)
• M17: 15,981,391 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.8

Radius: 11.1

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 2.49 AU - 2.79 AU

Year: 2909 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,979,613 km

• M1: 138,378 km (0.1 R)
• M2: 561,142 km (0.044 R)
• M3: 1,013,077 km (0.028 R)
• M4: 2,284,210 km (0.089 R)
• M5: 2,828,746 km (0.064 R)
• M6: 3,548,162 km (0.059 R)
• M7: 4,179,316 km (0.047 R)
• M8: 4,835,452 km (0.048 R)
• M9: 5,882,787 km (0.102 R)
• M10: 6,828,844 km (0.039 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.8

Radius: 12

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.89 AU - 4.77 AU

Year: 5084 Days

Day: 8.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 71,979,613 km

• M1: 149,299 km (0.109 R)
• M2: 559,346 km (0.104 R)
• M3: 1,062,893 km (0.118 R)
• M4: 1,533,528 km (0.036 R)
• M5: 2,169,768 km (0.08 R)
• M6: 2,942,740 km (0.118 R)
• M7: 3,394,076 km (0.062 R)
• M8: 3,931,731 km (0.097 R)
• M9: 5,326,731 km (0.115 R)
• M10: 7,179,950 km (0.101 R)
• M11: 7,873,186 km (0.057 R)
• M12: 9,211,190 km (0.08 R)
• M13: 9,801,952 km (0.098 R)
• M14: 11,224,029 km (0.056 R)
• M15: 12,377,728 km (0.116 R)
• M16: 13,797,860 km (0.095 R)
• M17: 14,670,914 km (0.115 R)
• M18: 15,735,602 km (0.073 R)
• M19: 19,298,425 km (0.092 R)
• M20: 20,638,223 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.1

Radius: 9.5

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 4.31 AU - 5.71 AU

Year: 7606 Days

Day: 10 Hours

Environment

Temp: -231 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,979,613 km

• M1: 118,182 km (0.072 R)
• M2: 980,464 km (0.044 R)
• M3: 3,583,767 km (0.044 R)
• M4: 4,080,282 km (0.118 R)
• M5: 4,597,442 km (0.051 R)
• M6: 5,734,535 km (0.095 R)
• M7: 7,348,397 km (0.051 R)
• M8: 9,205,804 km (0.069 R)
• M9: 10,735,742 km (0.113 R)
• M10: 12,142,710 km (0.12 R)
• M11: 20,855,738 km (0.068 R)
• M12: 21,335,349 km (0.034 R)
• M13: 23,993,554 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 815.3

Radius: 6.2

Gravity: 21.21 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.67 AU - 9.37 AU

Year: 16867 Days

Day: 20.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,979,613 km

• M1: 77,193 km (0.078 R)
• M2: 334,650 km (0.05 R)
• M3: 1,058,704 km (0.025 R)
• M4: 3,055,387 km (0.098 R)
• M5: 3,660,510 km (0.094 R)
• M6: 3,991,421 km (0.098 R)
• M7: 5,290,828 km (0.11 R)
• M8: 7,353,184 km (0.082 R)
• M9: 9,227,645 km (0.116 R)
• M10: 12,908,351 km (0.096 R)
• M11: 13,114,647 km (0.025 R)
• M12: 14,178,886 km (0.077 R)
• M13: 14,844,298 km (0.103 R)
• M14: 19,732,408 km (0.065 R)
• M15: 25,486,989 km (0.062 R)
• M16: 29,808,273 km (0.105 R)
• M17: 37,168,040 km (0.05 R)
• M18: 43,152,254 km (0.056 R)
• M19: 45,811,057 km (0.1 R)
• M20: 46,452,233 km (0.105 R)
• M21: 46,936,930 km (0.116 R)
• M22: 60,180,231 km (0.092 R)
• M23: 60,949,015 km (0.072 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: 400 - 15,158 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit