🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.51 AU - 0.63 AU

Year: 274 Days

Day: 41.7 Hours

Environment

Temp: -117 °C

Axial Tilt: 7.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.4

Radius: 11.7

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.83 AU - 0.83 AU

Year: 481 Days

Day: 11.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 74.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,964,090 km

• M1: 145,559 km (0.025 R)
• M2: 549,922 km (0.088 R)
• M3: 1,141,133 km (0.055 R)
• M4: 1,573,770 km (0.067 R)
• M5: 2,355,718 km (0.106 R)
• M6: 2,738,987 km (0.101 R)
• M7: 3,724,987 km (0.074 R)
• M8: 4,220,605 km (0.059 R)
• M9: 4,620,929 km (0.104 R)
• M10: 5,327,928 km (0.118 R)
• M11: 6,143,087 km (0.088 R)
• M12: 6,718,141 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.1

Radius: 11.8

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.86 AU - 1.26 AU

Year: 694 Days

Day: 10.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,964,090 km

• M1: 146,756 km (0.07 R)
• M2: 517,010 km (0.11 R)
• M3: 1,012,927 km (0.078 R)
• M4: 1,712,596 km (0.066 R)
• M5: 3,768,071 km (0.118 R)
• M6: 4,332,504 km (0.096 R)
• M7: 5,140,632 km (0.068 R)
• M8: 5,530,783 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.8

Radius: 8.5

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.17 AU - 5.27 AU

Year: 7583 Days

Day: 6.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,964,090 km

• M1: 105,766 km (0.088 R)
• M2: 553,213 km (0.067 R)
• M3: 862,133 km (0.037 R)
• M4: 1,527,394 km (0.051 R)
• M5: 1,823,149 km (0.111 R)
• M6: 2,142,690 km (0.098 R)
• M7: 3,118,966 km (0.069 R)
• M8: 4,015,805 km (0.075 R)
• M9: 4,318,143 km (0.075 R)
• M10: 4,635,888 km (0.069 R)
• M11: 5,654,949 km (0.112 R)
• M12: 6,035,975 km (0.093 R)
• M13: 6,980,536 km (0.117 R)
• M14: 10,361,747 km (0.102 R)
• M15: 10,710,908 km (0.076 R)
• M16: 11,852,639 km (0.094 R)
• M17: 16,051,702 km (0.057 R)
• M18: 18,102,988 km (0.106 R)
• M19: 23,757,488 km (0.05 R)
• M20: 24,288,710 km (0.086 R)
• M21: 25,929,799 km (0.107 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.5

Radius: 6.3

Gravity: 21.08 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 7.62 AU - 12.22 AU

Year: 19866 Days

Day: 16 Hours

Environment

Temp: -228 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,964,090 km

• M1: 78,389 km (0.082 R)
• M2: 335,249 km (0.102 R)
• M3: 755,020 km (0.052 R)
• M4: 1,062,444 km (0.057 R)
• M5: 1,931,159 km (0.042 R)
• M6: 2,906,537 km (0.036 R)
• M7: 3,457,955 km (0.082 R)
• M8: 3,852,145 km (0.065 R)
• M9: 4,208,786 km (0.067 R)
• M10: 4,446,946 km (0.073 R)
• M11: 6,554,332 km (0.113 R)
• M12: 7,206,129 km (0.036 R)
• M13: 8,106,559 km (0.09 R)
• M14: 9,135,942 km (0.043 R)
• M15: 10,744,867 km (0.089 R)
• M16: 11,782,777 km (0.078 R)
• M17: 12,052,352 km (0.094 R)
• M18: 14,207,160 km (0.052 R)
• M19: 14,667,024 km (0.094 R)
• M20: 15,295,634 km (0.11 R)
• M21: 16,775,157 km (0.066 R)
• M22: 20,207,381 km (0.078 R)
• M23: 26,304,990 km (0.109 R)
• M24: 28,784,276 km (0.052 R)
• M25: 32,064,359 km (0.086 R)
• M26: 33,794,159 km (0.069 R)
• M27: 34,338,695 km (0.098 R)
• M28: 37,583,772 km (0.117 R)
• M29: 40,109,882 km (0.111 R)
• M30: 43,223,762 km (0.119 R)
• M31: 44,513,146 km (0.068 R)
• M32: 50,280,144 km (0.083 R)
• M33: 58,066,713 km (0.118 R)
• M34: 59,833,763 km (0.059 R)
• M35: 67,690,493 km (0.078 R)
• M36: 76,207,399 km (0.06 R)
• M37: 77,614,218 km (0.039 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 18,833 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit