🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.7

Radius: 14.5

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.49 AU - 0.63 AU

Year: 284 Days

Day: 10.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,187,290 km

• M1: 180,415 km (0.043 R)
• M2: 649,105 km (0.11 R)
• M3: 1,173,745 km (0.066 R)
• M4: 1,794,576 km (0.099 R)
• M5: 2,246,960 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.7

Radius: 8.2

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.49 AU - 0.63 AU

Year: 284 Days

Day: 6.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,187,290 km

• M1: 102,923 km (0.061 R)
• M2: 394,789 km (0.115 R)
• M3: 715,826 km (0.093 R)
• M4: 980,913 km (0.088 R)
• M5: 1,345,782 km (0.031 R)
• M6: 1,975,141 km (0.047 R)
• M7: 2,880,507 km (0.103 R)
• M8: 3,213,213 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.1

Radius: 12.7

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.45 AU - 0.75 AU

Year: 315 Days

Day: 6.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,187,290 km

• M1: 157,975 km (0.115 R)
• M2: 553,662 km (0.101 R)
• M3: 1,051,523 km (0.064 R)
• M4: 1,634,058 km (0.076 R)
• M5: 2,160,343 km (0.043 R)
• M6: 2,670,771 km (0.109 R)
• M7: 3,088,149 km (0.07 R)
• M8: 3,483,985 km (0.102 R)
• M9: 4,008,774 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.2

Radius: 13

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.59 AU - 0.85 AU

Year: 414 Days

Day: 14.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,187,290 km

• M1: 161,715 km (0.113 R)
• M2: 648,357 km (0.091 R)
• M3: 1,757,476 km (0.113 R)
• M4: 2,451,161 km (0.094 R)
• M5: 2,879,460 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174

Radius: 13.9

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.85 AU - 1.17 AU

Year: 688 Days

Day: 11.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,187,290 km

• M1: 172,935 km (0.12 R)
• M2: 658,679 km (0.06 R)
• M3: 1,242,261 km (0.108 R)
• M4: 1,694,645 km (0.111 R)
• M5: 2,301,414 km (0.034 R)
• M6: 2,989,713 km (0.06 R)
• M7: 3,716,460 km (0.107 R)
• M8: 4,450,088 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.2

Radius: 13.9

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 3.15 AU - 4.59 AU

Year: 5164 Days

Day: 12.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,187,290 km

• M1: 174,880 km (0.111 R)
• M2: 731,683 km (0.1 R)
• M3: 1,760,468 km (0.113 R)
• M4: 2,976,848 km (0.109 R)
• M5: 3,656,322 km (0.08 R)
• M6: 4,695,279 km (0.079 R)
• M7: 5,413,947 km (0.087 R)
• M8: 6,333,226 km (0.104 R)
• M9: 8,721,257 km (0.096 R)
• M10: 11,415,066 km (0.106 R)
• M11: 12,407,947 km (0.093 R)
• M12: 13,893,753 km (0.117 R)
• M13: 15,200,490 km (0.071 R)
• M14: 16,035,246 km (0.106 R)
• M15: 18,522,161 km (0.108 R)
• M16: 19,062,509 km (0.093 R)
• M17: 21,625,270 km (0.118 R)
• M18: 23,066,795 km (0.115 R)
• M19: 24,009,710 km (0.06 R)
• M20: 25,804,885 km (0.034 R)
• M21: 27,079,159 km (0.092 R)
• M22: 30,029,828 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.3

Radius: 4.8

Gravity: 32.3 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 7.61 AU - 9.03 AU

Year: 16277 Days

Day: 15.5 Hours

Environment

Temp: -243 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 68,187,290 km

• M1: 59,690 km (0.031 R)
• M2: 212,878 km (0.07 R)
• M3: 498,011 km (0.035 R)
• M4: 1,917,546 km (0.114 R)
• M5: 2,189,066 km (0.082 R)
• M6: 2,832,935 km (0.083 R)
• M7: 3,185,537 km (0.12 R)
• M8: 4,100,926 km (0.082 R)
• M9: 4,686,752 km (0.063 R)
• M10: 4,928,951 km (0.086 R)
• M11: 5,143,324 km (0.063 R)
• M12: 5,942,626 km (0.098 R)
• M13: 7,547,063 km (0.12 R)
• M14: 8,173,429 km (0.082 R)
• M15: 9,311,271 km (0.094 R)
• M16: 9,528,936 km (0.114 R)
• M17: 9,805,692 km (0.118 R)
• M18: 11,209,967 km (0.102 R)
• M19: 12,544,081 km (0.082 R)
• M20: 14,266,251 km (0.112 R)
• M21: 15,984,233 km (0.089 R)
• M22: 18,855,764 km (0.107 R)
• M23: 19,824,710 km (0.111 R)
• M24: 21,575,902 km (0.112 R)
• M25: 22,930,362 km (0.105 R)
• M26: 34,810,377 km (0.059 R)
• M27: 35,998,035 km (0.101 R)
• M28: 36,534,343 km (0.079 R)
• M29: 37,076,037 km (0.091 R)
• M30: 47,122,731 km (0.057 R)
• M31: 50,557,049 km (0.08 R)
• M32: 50,724,599 km (0.1 R)
• M33: 59,771,380 km (0.077 R)
• M34: 63,010,324 km (0.057 R)
• M35: 65,963,685 km (0.11 R)
• M36: 67,983,107 km (0.106 R)
• M37: 68,187,308 km (0.075 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 156 - 14,661 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit