🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84

Radius: 11.7

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.78 AU - 1.08 AU

Year: 570 Days

Day: 13 Hours

Environment

Temp: -164 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,995,157 km

• M1: 145,559 km (0.12 R)
• M2: 578,495 km (0.103 R)
• M3: 983,307 km (0.076 R)
• M4: 1,361,341 km (0.1 R)
• M5: 2,200,884 km (0.057 R)
• M6: 3,000,036 km (0.098 R)
• M7: 3,368,346 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.2

Radius: 13.1

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.4 AU - 1.94 AU

Year: 1372 Days

Day: 8.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 77,995,157 km

• M1: 162,912 km (0.069 R)
• M2: 594,053 km (0.119 R)
• M3: 1,168,659 km (0.118 R)
• M4: 1,684,921 km (0.097 R)
• M5: 2,097,961 km (0.098 R)
• M6: 2,730,760 km (0.087 R)
• M7: 4,085,368 km (0.092 R)
• M8: 4,526,682 km (0.09 R)
• M9: 4,941,367 km (0.078 R)
• M10: 5,569,230 km (0.119 R)
• M11: 7,361,262 km (0.086 R)
• M12: 8,945,653 km (0.103 R)
• M13: 10,323,599 km (0.118 R)
• M14: 12,051,305 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.7

Radius: 8.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.5 AU - 1.98 AU

Year: 1459 Days

Day: 10.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,995,157 km

• M1: 110,852 km (0.07 R)
• M2: 504,743 km (0.088 R)
• M3: 886,966 km (0.093 R)
• M4: 1,346,979 km (0.066 R)
• M5: 2,293,635 km (0.083 R)
• M6: 2,998,241 km (0.116 R)
• M7: 3,674,872 km (0.103 R)
• M8: 4,500,502 km (0.045 R)
• M9: 6,088,334 km (0.07 R)
• M10: 6,669,821 km (0.101 R)
• M11: 7,194,012 km (0.118 R)
• M12: 7,598,973 km (0.112 R)
• M13: 8,069,459 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.3

Radius: 13.2

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.7 AU - 2.24 AU

Year: 1758 Days

Day: 13.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,995,157 km

• M1: 164,109 km (0.081 R)
• M2: 901,926 km (0.067 R)
• M3: 1,428,211 km (0.083 R)
• M4: 1,946,867 km (0.116 R)
• M5: 3,501,637 km (0.096 R)
• M6: 4,887,662 km (0.078 R)
• M7: 6,199,934 km (0.077 R)
• M8: 7,021,974 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.8

Radius: 9.3

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.93 AU - 3.69 AU

Year: 3829 Days

Day: 12.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,995,157 km

• M1: 115,938 km (0.118 R)
• M2: 678,277 km (0.078 R)
• M3: 1,984,117 km (0.114 R)
• M4: 2,822,164 km (0.106 R)
• M5: 3,126,745 km (0.046 R)
• M6: 5,791,682 km (0.107 R)
• M7: 8,293,856 km (0.082 R)
• M8: 8,855,895 km (0.118 R)
• M9: 12,517,452 km (0.108 R)
• M10: 15,800,228 km (0.034 R)
• M11: 17,451,639 km (0.119 R)
• M12: 18,099,697 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.1

Radius: 13.2

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.45 AU - 4.53 AU

Year: 5067 Days

Day: 5.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,995,157 km

• M1: 164,258 km (0.068 R)
• M2: 594,801 km (0.097 R)
• M3: 1,122,433 km (0.096 R)
• M4: 1,903,633 km (0.106 R)
• M5: 2,533,739 km (0.047 R)
• M6: 4,023,584 km (0.039 R)
• M7: 4,469,835 km (0.118 R)
• M8: 6,769,004 km (0.037 R)
• M9: 7,967,283 km (0.09 R)
• M10: 8,588,264 km (0.042 R)
• M11: 12,264,183 km (0.097 R)
• M12: 12,787,476 km (0.027 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.7

Radius: 7

Gravity: 11.73 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 8.36 AU - 13.3 AU

Year: 22661 Days

Day: 19.7 Hours

Environment

Temp: -241 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 77,995,157 km

• M1: 114,891 km (0.074 R)
• M2: 388,506 km (0.077 R)
• M3: 1,150,707 km (0.117 R)
• M4: 3,342,166 km (0.059 R)
• M5: 6,195,297 km (0.091 R)
• M6: 8,436,572 km (0.098 R)
• M7: 9,422,272 km (0.079 R)
• M8: 12,151,386 km (0.095 R)
• M9: 13,048,973 km (0.101 R)
• M10: 16,831,256 km (0.101 R)
• M11: 18,120,940 km (0.115 R)
• M12: 18,744,763 km (0.064 R)
• M13: 27,154,557 km (0.055 R)
• M14: 40,577,375 km (0.099 R)
• M15: 51,922,279 km (0.067 R)
• M16: 52,638,105 km (0.051 R)
• M17: 70,097,822 km (0.075 R)
• M18: 71,853,503 km (0.087 R)
• M19: 73,638,205 km (0.067 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 16,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit