🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.4

Radius: 14.6

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.74 AU - 0.86 AU

Year: 485 Days

Day: 6.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 7,340,626 km

• M1: 182,958 km (0.041 R)
• M2: 688,599 km (0.095 R)
• M3: 1,214,884 km (0.03 R)
• M4: 2,153,162 km (0.07 R)
• M5: 2,742,129 km (0.089 R)
• M6: 3,427,287 km (0.054 R)
• M7: 4,362,872 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.1

Radius: 8.8

Gravity: 2.42 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.71 AU - 0.97 AU

Year: 522 Days

Day: 7.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 7,340,626 km

• M1: 110,553 km (0.038 R)
• M2: 409,898 km (0.062 R)
• M3: 841,338 km (0.116 R)
• M4: 1,383,332 km (0.111 R)
• M5: 2,784,615 km (0.113 R)
• M6: 3,649,739 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.5

Radius: 9.9

Gravity: 9.97 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.92 AU - 1.06 AU

Year: 668 Days

Day: 14 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 7,340,626 km

• M1: 124,017 km (0.113 R)
• M2: 443,707 km (0.066 R)
• M3: 1,135,149 km (0.095 R)
• M4: 1,950,307 km (0.075 R)
• M5: 2,293,335 km (0.103 R)
• M6: 2,964,132 km (0.119 R)
• M7: 4,030,615 km (0.118 R)
• M8: 4,849,065 km (0.047 R)
• M9: 7,972,669 km (0.111 R)
• M10: 8,294,454 km (0.109 R)
• M11: 8,625,065 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.3

Radius: 13.7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.9 AU - 1.38 AU

Year: 826 Days

Day: 5.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 7,340,626 km

• M1: 170,392 km (0.115 R)
• M2: 686,654 km (0.075 R)
• M3: 1,149,809 km (0.101 R)
• M4: 1,797,269 km (0.114 R)
• M5: 2,481,679 km (0.116 R)
• M6: 2,995,548 km (0.098 R)
• M7: 3,824,320 km (0.076 R)
• M8: 4,752,724 km (0.118 R)
• M9: 5,184,613 km (0.115 R)
• M10: 7,226,176 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.6

Radius: 14.7

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.36 AU - 1.4 AU

Year: 1100 Days

Day: 6.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 7,340,626 km

• M1: 183,108 km (0.045 R)
• M2: 881,879 km (0.067 R)
• M3: 1,542,354 km (0.078 R)
• M4: 2,017,477 km (0.057 R)
• M5: 2,569,792 km (0.09 R)
• M6: 3,604,411 km (0.062 R)
• M7: 4,077,739 km (0.081 R)
• M8: 5,755,329 km (0.118 R)
• M9: 6,218,484 km (0.103 R)
• M10: 6,728,164 km (0.076 R)
• M11: 8,659,323 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.3

Radius: 12.7

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.46 AU - 1.96 AU

Year: 1517 Days

Day: 6.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 7,340,626 km

• M1: 158,723 km (0.026 R)
• M2: 705,055 km (0.086 R)
• M3: 1,203,814 km (0.032 R)
• M4: 1,684,322 km (0.086 R)
• M5: 2,209,411 km (0.09 R)
• M6: 2,745,570 km (0.073 R)
• M7: 3,320,325 km (0.097 R)
• M8: 4,793,864 km (0.118 R)
• M9: 5,699,978 km (0.095 R)
• M10: 7,028,856 km (0.062 R)
• M11: 8,615,341 km (0.069 R)
• M12: 9,300,051 km (0.054 R)
• M13: 10,087,833 km (0.11 R)
• M14: 11,170,922 km (0.061 R)
• M15: 12,099,476 km (0.094 R)
• M16: 13,567,480 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 14

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.69 AU - 1.81 AU

Year: 1570 Days

Day: 12.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 7,340,626 km

• M1: 174,132 km (0.11 R)
• M2: 693,685 km (0.101 R)
• M3: 1,174,642 km (0.095 R)
• M4: 2,074,474 km (0.092 R)
• M5: 2,523,417 km (0.069 R)
• M6: 2,987,320 km (0.082 R)
• M7: 3,681,005 km (0.108 R)
• M8: 4,266,082 km (0.066 R)
• M9: 4,788,927 km (0.114 R)
• M10: 6,339,808 km (0.116 R)
• M11: 6,842,457 km (0.109 R)
• M12: 7,324,611 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.1

Radius: 9.8

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.35 AU - 2.17 AU

Year: 1584 Days

Day: 9 Hours

Environment

Temp: -196 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 7,340,626 km

• M1: 121,922 km (0.116 R)
• M2: 433,983 km (0.101 R)
• M3: 758,012 km (0.048 R)
• M4: 1,202,617 km (0.104 R)
• M5: 1,657,844 km (0.089 R)
• M6: 4,354,794 km (0.093 R)
• M7: 4,810,170 km (0.067 R)
• M8: 5,798,264 km (0.096 R)
• M9: 6,136,804 km (0.053 R)
• M10: 6,468,762 km (0.048 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 12,911 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit