🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.8

Radius: 14.8

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.44 AU - 0.6 AU

Year: 264 Days

Day: 10.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 24,111,476 km

• M1: 184,005 km (0.079 R)
• M2: 645,964 km (0.083 R)
• M3: 1,292,974 km (0.096 R)
• M4: 1,805,497 km (0.093 R)
• M5: 2,272,092 km (0.055 R)
• M6: 2,762,923 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.5

Radius: 8.1

Gravity: 12.31 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.66 AU

Year: 327 Days

Day: 7.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,111,476 km

• M1: 100,679 km (0.07 R)
• M2: 458,218 km (0.106 R)
• M3: 765,941 km (0.117 R)
• M4: 1,030,580 km (0.115 R)
• M5: 1,351,467 km (0.093 R)
• M6: 1,767,499 km (0.045 R)
• M7: 2,232,748 km (0.036 R)
• M8: 2,650,126 km (0.097 R)
• M9: 3,617,725 km (0.095 R)
• M10: 4,315,001 km (0.082 R)
• M11: 4,589,812 km (0.043 R)
• M12: 4,979,216 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.8

Radius: 8.3

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.68 AU - 0.82 AU

Year: 457 Days

Day: 11.5 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,111,476 km

• M1: 103,223 km (0.114 R)
• M2: 394,041 km (0.039 R)
• M3: 728,093 km (0.052 R)
• M4: 1,129,165 km (0.06 R)
• M5: 1,544,448 km (0.05 R)
• M6: 1,917,097 km (0.104 R)
• M7: 2,177,995 km (0.066 R)
• M8: 2,529,401 km (0.05 R)
• M9: 2,808,401 km (0.116 R)
• M10: 3,166,538 km (0.103 R)
• M11: 3,716,909 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.6

Radius: 13.9

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.97 AU - 1.29 AU

Year: 844 Days

Day: 7.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,111,476 km

• M1: 172,935 km (0.061 R)
• M2: 615,745 km (0.099 R)
• M3: 1,099,245 km (0.087 R)
• M4: 1,597,256 km (0.115 R)
• M5: 2,354,222 km (0.115 R)
• M6: 3,231,015 km (0.105 R)
• M7: 3,806,667 km (0.078 R)
• M8: 4,622,425 km (0.108 R)
• M9: 5,731,693 km (0.06 R)
• M10: 6,873,424 km (0.087 R)
• M11: 7,365,750 km (0.051 R)
• M12: 8,187,342 km (0.082 R)
• M13: 8,687,597 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.7

Radius: 14.1

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.15 AU - 1.63 AU

Year: 1152 Days

Day: 10.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,111,476 km

• M1: 175,478 km (0.108 R)
• M2: 664,215 km (0.057 R)
• M3: 1,107,623 km (0.119 R)
• M4: 1,788,293 km (0.083 R)
• M5: 2,427,076 km (0.085 R)
• M6: 2,891,727 km (0.095 R)
• M7: 4,069,660 km (0.113 R)
• M8: 4,604,772 km (0.091 R)
• M9: 5,167,260 km (0.078 R)
• M10: 5,691,601 km (0.091 R)
• M11: 6,847,843 km (0.103 R)
• M12: 7,685,142 km (0.088 R)
• M13: 8,235,662 km (0.087 R)
• M14: 9,803,597 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.1

Radius: 12.7

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.63 AU - 2.07 AU

Year: 1769 Days

Day: 9.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,111,476 km

• M1: 158,424 km (0.101 R)
• M2: 804,986 km (0.105 R)
• M3: 1,451,099 km (0.059 R)
• M4: 2,695,155 km (0.096 R)
• M5: 3,726,782 km (0.093 R)
• M6: 4,309,316 km (0.081 R)
• M7: 5,077,352 km (0.042 R)
• M8: 6,096,861 km (0.114 R)
• M9: 6,494,193 km (0.116 R)
• M10: 8,361,025 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.9

Radius: 11.8

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.99 AU - 3.55 AU

Year: 4157 Days

Day: 14.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 24,111,476 km

• M1: 147,354 km (0.117 R)
• M2: 590,612 km (0.053 R)
• M3: 1,144,125 km (0.049 R)
• M4: 1,592,469 km (0.089 R)
• M5: 2,635,017 km (0.055 R)
• M6: 3,718,405 km (0.101 R)
• M7: 4,772,471 km (0.119 R)
• M8: 5,288,734 km (0.116 R)
• M9: 6,871,778 km (0.12 R)
• M10: 7,531,804 km (0.091 R)
• M11: 7,912,531 km (0.084 R)
• M12: 8,452,429 km (0.118 R)
• M13: 9,606,128 km (0.088 R)
• M14: 10,905,834 km (0.119 R)
• M15: 12,319,385 km (0.06 R)
• M16: 12,751,872 km (0.059 R)
• M17: 13,800,404 km (0.029 R)
• M18: 15,396,762 km (0.096 R)
• M19: 15,955,361 km (0.101 R)
• M20: 16,527,423 km (0.112 R)
• M21: 19,336,871 km (0.115 R)
• M22: 20,854,542 km (0.069 R)
• M23: 21,331,908 km (0.059 R)
• M24: 22,951,904 km (0.049 R)
• M25: 24,576,686 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.1

Radius: 11.5

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 4.3 AU - 6.24 AU

Year: 8504 Days

Day: 14.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,111,476 km

• M1: 143,165 km (0.118 R)
• M2: 819,796 km (0.094 R)
• M3: 2,835,478 km (0.042 R)
• M4: 3,309,703 km (0.092 R)
• M5: 4,155,380 km (0.086 R)
• M6: 5,908,069 km (0.12 R)
• M7: 7,253,253 km (0.09 R)
• M8: 8,560,738 km (0.112 R)
• M9: 11,875,079 km (0.106 R)
• M10: 12,262,388 km (0.117 R)
• M11: 14,545,551 km (0.062 R)
• M12: 16,197,111 km (0.102 R)
• M13: 18,288,639 km (0.04 R)
• M14: 22,043,845 km (0.102 R)
• M15: 22,777,921 km (0.103 R)
• M16: 23,226,117 km (0.105 R)
• M17: 24,217,352 km (0.046 R)
• M18: 27,276,928 km (0.1 R)
• M19: 28,037,633 km (0.027 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 74.4

Radius: 6

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.6 AU - 6.78 AU

Year: 10825 Days

Day: 20.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,111,476 km

• M1: 74,949 km (0.098 R)
• M2: 272,717 km (0.054 R)
• M3: 463,903 km (0.069 R)
• M4: 679,174 km (0.119 R)
• M5: 915,090 km (0.097 R)
• M6: 1,383,182 km (0.119 R)
• M7: 4,250,823 km (0.119 R)
• M8: 4,456,221 km (0.07 R)
• M9: 5,163,371 km (0.119 R)
• M10: 5,747,999 km (0.088 R)
• M11: 5,971,199 km (0.11 R)
• M12: 6,346,241 km (0.054 R)
• M13: 12,016,000 km (0.047 R)
• M14: 19,848,645 km (0.089 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 11,955 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit