🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 281.6

Radius: 10.1

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.44 AU - 0.7 AU

Year: 287 Days

Day: 13.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,775,744 km

• M1: 125,662 km (0.116 R)
• M2: 440,566 km (0.042 R)
• M3: 902,973 km (0.096 R)
• M4: 1,276,369 km (0.032 R)
• M5: 2,107,086 km (0.027 R)
• M6: 2,873,476 km (0.105 R)
• M7: 3,264,226 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.9

Radius: 8.9

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.74 AU - 1.04 AU

Year: 560 Days

Day: 14.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,775,744 km

• M1: 111,600 km (0.11 R)
• M2: 457,470 km (0.097 R)
• M3: 789,129 km (0.112 R)
• M4: 1,302,100 km (0.091 R)
• M5: 1,579,006 km (0.091 R)
• M6: 2,699,942 km (0.03 R)
• M7: 3,024,570 km (0.054 R)
• M8: 3,919,614 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.5

Radius: 14.4

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.01 AU - 1.15 AU

Year: 748 Days

Day: 13.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 42,775,744 km

• M1: 179,368 km (0.05 R)
• M2: 880,084 km (0.106 R)
• M3: 1,649,317 km (0.102 R)
• M4: 2,108,881 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.7

Radius: 10.9

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.54 AU - 2.36 AU

Year: 1816 Days

Day: 12.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,775,744 km

• M1: 135,536 km (0.03 R)
• M2: 491,429 km (0.084 R)
• M3: 942,915 km (0.112 R)
• M4: 1,323,492 km (0.082 R)
• M5: 1,786,348 km (0.096 R)
• M6: 2,656,260 km (0.116 R)
• M7: 3,715,562 km (0.113 R)
• M8: 4,144,759 km (0.079 R)
• M9: 4,544,634 km (0.088 R)
• M10: 5,587,331 km (0.113 R)
• M11: 6,358,059 km (0.096 R)
• M12: 6,782,767 km (0.094 R)
• M13: 8,019,044 km (0.039 R)
• M14: 9,881,837 km (0.115 R)
• M15: 11,197,550 km (0.103 R)
• M16: 12,056,990 km (0.111 R)
• M17: 12,462,101 km (0.03 R)
• M18: 13,688,205 km (0.063 R)
• M19: 15,940,102 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680.5

Radius: 14.5

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.67 AU - 2.59 AU

Year: 2073 Days

Day: 9.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,775,744 km

• M1: 197,469 km (0.094 R)
• M2: 669,301 km (0.092 R)
• M3: 1,186,162 km (0.098 R)
• M4: 1,720,824 km (0.119 R)
• M5: 2,365,741 km (0.092 R)
• M6: 2,967,723 km (0.084 R)
• M7: 3,430,429 km (0.102 R)
• M8: 4,091,801 km (0.112 R)
• M9: 4,689,594 km (0.08 R)
• M10: 5,695,789 km (0.092 R)
• M11: 8,351,002 km (0.115 R)
• M12: 9,250,983 km (0.084 R)
• M13: 11,512,304 km (0.087 R)
• M14: 12,463,896 km (0.099 R)
• M15: 13,381,679 km (0.097 R)
• M16: 15,445,980 km (0.112 R)
• M17: 15,969,722 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.4

Radius: 8

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.63 AU - 3.25 AU

Year: 3362 Days

Day: 7.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,775,744 km

• M1: 99,483 km (0.113 R)
• M2: 383,719 km (0.088 R)
• M3: 692,189 km (0.116 R)
• M4: 1,412,503 km (0.108 R)
• M5: 1,995,785 km (0.036 R)
• M6: 2,373,221 km (0.074 R)
• M7: 5,062,093 km (0.12 R)
• M8: 5,700,277 km (0.113 R)
• M9: 6,016,078 km (0.078 R)
• M10: 6,881,801 km (0.109 R)
• M11: 8,948,346 km (0.089 R)
• M12: 10,369,526 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 450.5

Radius: 5

Gravity: 18.02 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.28 AU - 6.36 AU

Year: 9363 Days

Day: 17.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 42,775,744 km

• M1: 62,831 km (0.084 R)
• M2: 219,310 km (0.096 R)
• M3: 380,876 km (0.101 R)
• M4: 579,093 km (0.106 R)
• M5: 899,682 km (0.063 R)
• M6: 1,181,225 km (0.111 R)
• M7: 1,712,148 km (0.082 R)
• M8: 2,479,884 km (0.056 R)
• M9: 2,767,411 km (0.062 R)
• M10: 3,409,186 km (0.088 R)
• M11: 4,467,292 km (0.085 R)
• M12: 5,101,138 km (0.07 R)
• M13: 5,825,939 km (0.116 R)
• M14: 6,617,163 km (0.096 R)
• M15: 8,970,636 km (0.066 R)
• M16: 10,406,327 km (0.071 R)
• M17: 11,204,282 km (0.036 R)
• M18: 13,607,871 km (0.094 R)
• M19: 15,367,292 km (0.092 R)
• M20: 17,136,735 km (0.085 R)
• M21: 18,675,349 km (0.115 R)
• M22: 20,303,722 km (0.097 R)
• M23: 22,266,297 km (0.119 R)
• M24: 24,094,981 km (0.048 R)
• M25: 29,782,692 km (0.111 R)
• M26: 30,177,630 km (0.099 R)
• M27: 32,204,831 km (0.098 R)
• M28: 32,412,473 km (0.081 R)
• M29: 38,946,010 km (0.068 R)
• M30: 39,536,922 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.8

Radius: 7.4

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 7.54 AU - 10.68 AU

Year: 18336 Days

Day: 19.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,775,744 km

• M1: 93,199 km (0.115 R)
• M2: 1,937,891 km (0.108 R)
• M3: 5,687,711 km (0.11 R)
• M4: 9,780,410 km (0.066 R)
• M5: 10,264,807 km (0.051 R)
• M6: 11,439,450 km (0.073 R)
• M7: 13,931,900 km (0.063 R)
• M8: 18,829,136 km (0.108 R)
• M9: 25,120,774 km (0.057 R)
• M10: 25,936,830 km (0.079 R)
• M11: 26,958,135 km (0.101 R)
• M12: 29,478,260 km (0.092 R)
• M13: 31,416,301 km (0.095 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: 250 - 13,561 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit