🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412.3

Radius: 11.3

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.58 AU - 0.78 AU

Year: 380 Days

Day: 5.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,445,946 km

• M1: 140,472 km (0.073 R)
• M2: 569,519 km (0.116 R)
• M3: 1,033,272 km (0.09 R)
• M4: 1,410,259 km (0.102 R)
• M5: 1,782,608 km (0.101 R)
• M6: 2,229,756 km (0.106 R)
• M7: 2,836,376 km (0.08 R)
• M8: 3,268,115 km (0.063 R)
• M9: 3,663,203 km (0.12 R)
• M10: 4,484,495 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.2

Radius: 9.7

Gravity: 9.59 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.59 AU - 0.87 AU

Year: 423 Days

Day: 14.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,445,946 km

• M1: 123,418 km (0.099 R)
• M2: 480,508 km (0.106 R)
• M3: 950,844 km (0.09 R)
• M4: 1,373,608 km (0.093 R)
• M5: 1,807,741 km (0.091 R)
• M6: 2,149,871 km (0.067 R)
• M7: 2,555,281 km (0.057 R)
• M8: 2,944,535 km (0.104 R)
• M9: 4,157,175 km (0.115 R)
• M10: 4,728,789 km (0.11 R)
• M11: 5,623,085 km (0.081 R)
• M12: 5,939,185 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.5

Radius: 14.9

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.73 AU - 1.07 AU

Year: 579 Days

Day: 14.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,445,946 km

• M1: 185,352 km (0.095 R)
• M2: 764,595 km (0.064 R)
• M3: 1,347,129 km (0.113 R)
• M4: 2,800,323 km (0.117 R)
• M5: 3,720,948 km (0.099 R)
• M6: 4,565,129 km (0.041 R)
• M7: 5,151,253 km (0.111 R)
• M8: 6,182,730 km (0.047 R)
• M9: 6,758,233 km (0.072 R)
• M10: 7,500,388 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.5

Radius: 10.3

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.17 AU - 1.23 AU

Year: 892 Days

Day: 7.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 36,445,946 km

• M1: 128,056 km (0.044 R)
• M2: 613,650 km (0.101 R)
• M3: 1,006,794 km (0.115 R)
• M4: 1,593,965 km (0.1 R)
• M5: 2,860,162 km (0.074 R)
• M6: 3,340,520 km (0.067 R)
• M7: 3,889,245 km (0.105 R)
• M8: 4,530,871 km (0.052 R)
• M9: 4,877,489 km (0.105 R)
• M10: 5,468,999 km (0.08 R)
• M11: 6,402,340 km (0.11 R)
• M12: 6,952,411 km (0.09 R)
• M13: 7,605,556 km (0.091 R)
• M14: 8,273,660 km (0.092 R)
• M15: 9,088,519 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.9

Radius: 8.8

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.03 AU - 3.31 AU

Year: 3828 Days

Day: 13.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 36,445,946 km

• M1: 109,506 km (0.108 R)
• M2: 411,245 km (0.102 R)
• M3: 799,301 km (0.113 R)
• M4: 1,293,573 km (0.044 R)
• M5: 1,954,047 km (0.069 R)
• M6: 2,353,175 km (0.09 R)
• M7: 2,999,437 km (0.083 R)
• M8: 3,843,917 km (0.111 R)
• M9: 5,967,309 km (0.11 R)
• M10: 7,664,797 km (0.113 R)
• M11: 8,961,511 km (0.06 R)
• M12: 9,463,860 km (0.099 R)
• M13: 11,349,093 km (0.107 R)
• M14: 12,545,876 km (0.116 R)
• M15: 14,495,734 km (0.089 R)
• M16: 14,865,840 km (0.108 R)
• M17: 16,812,557 km (0.093 R)
• M18: 17,517,312 km (0.049 R)
• M19: 17,877,095 km (0.119 R)
• M20: 20,336,783 km (0.055 R)
• M21: 21,544,786 km (0.104 R)
• M22: 22,166,365 km (0.095 R)
• M23: 25,378,830 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.7

Radius: 14.6

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.13 AU - 3.37 AU

Year: 3974 Days

Day: 14.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 36,445,946 km

• M1: 183,257 km (0.096 R)
• M2: 821,442 km (0.082 R)
• M3: 1,327,831 km (0.115 R)
• M4: 1,885,681 km (0.087 R)
• M5: 2,789,402 km (0.118 R)
• M6: 3,268,713 km (0.117 R)
• M7: 4,092,399 km (0.117 R)
• M8: 4,577,096 km (0.053 R)
• M9: 5,274,971 km (0.082 R)
• M10: 5,823,995 km (0.074 R)
• M11: 6,794,137 km (0.106 R)
• M12: 7,836,385 km (0.113 R)
• M13: 8,344,270 km (0.105 R)
• M14: 8,982,903 km (0.109 R)
• M15: 12,002,088 km (0.074 R)
• M16: 12,495,761 km (0.091 R)
• M17: 13,332,910 km (0.08 R)
• M18: 14,009,691 km (0.066 R)
• M19: 15,909,285 km (0.094 R)
• M20: 17,004,940 km (0.093 R)
• M21: 20,979,306 km (0.114 R)
• M22: 21,895,892 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.8

Radius: 13.7

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.11 AU - 4.31 AU

Year: 4847 Days

Day: 9.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 36,445,946 km

• M1: 170,542 km (0.072 R)
• M2: 656,585 km (0.065 R)
• M3: 1,251,536 km (0.117 R)
• M4: 1,898,696 km (0.066 R)
• M5: 2,421,541 km (0.052 R)
• M6: 2,853,430 km (0.116 R)
• M7: 4,323,827 km (0.106 R)
• M8: 4,780,250 km (0.119 R)
• M9: 6,315,723 km (0.115 R)
• M10: 6,872,077 km (0.052 R)
• M11: 7,749,768 km (0.044 R)
• M12: 9,900,088 km (0.104 R)
• M13: 10,789,447 km (0.062 R)
• M14: 12,933,484 km (0.112 R)
• M15: 15,464,530 km (0.106 R)
• M16: 16,115,730 km (0.1 R)
• M17: 17,600,040 km (0.059 R)
• M18: 19,376,814 km (0.089 R)
• M19: 20,203,791 km (0.069 R)
• M20: 21,854,454 km (0.101 R)
• M21: 24,061,920 km (0.089 R)
• M22: 25,915,438 km (0.113 R)
• M23: 26,497,972 km (0.036 R)
• M24: 27,174,453 km (0.102 R)
• M25: 27,775,837 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.7

Radius: 14.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 4.06 AU - 5.8 AU

Year: 7424 Days

Day: 13.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,445,946 km

• M1: 189,989 km (0.115 R)
• M2: 735,573 km (0.087 R)
• M3: 1,284,148 km (0.114 R)
• M4: 2,123,991 km (0.076 R)
• M5: 2,846,698 km (0.058 R)
• M6: 3,972,871 km (0.098 R)
• M7: 4,855,049 km (0.066 R)
• M8: 6,327,092 km (0.116 R)
• M9: 8,589,012 km (0.115 R)
• M10: 10,029,041 km (0.069 R)
• M11: 14,886,484 km (0.062 R)
• M12: 15,998,295 km (0.097 R)
• M13: 17,268,980 km (0.069 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.7

Radius: 10.2

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 4.15 AU - 6.57 AU

Year: 8417 Days

Day: 8.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 36,445,946 km

• M1: 126,859 km (0.084 R)
• M2: 552,615 km (0.113 R)
• M3: 927,507 km (0.101 R)
• M4: 1,263,952 km (0.097 R)
• M5: 2,050,688 km (0.097 R)
• M6: 2,617,664 km (0.098 R)
• M7: 3,093,534 km (0.118 R)
• M8: 3,649,739 km (0.078 R)
• M9: 5,109,515 km (0.115 R)
• M10: 6,019,968 km (0.096 R)
• M11: 6,566,748 km (0.089 R)
• M12: 10,092,022 km (0.115 R)
• M13: 10,425,326 km (0.06 R)
• M14: 12,856,740 km (0.074 R)
• M15: 14,293,329 km (0.092 R)
• M16: 15,580,469 km (0.093 R)
• M17: 16,155,074 km (0.114 R)
• M18: 16,611,796 km (0.057 R)
• M19: 17,482,755 km (0.072 R)
• M20: 20,581,226 km (0.093 R)
• M21: 20,963,748 km (0.059 R)
• M22: 21,743,153 km (0.044 R)
• M23: 25,579,142 km (0.03 R)
• M24: 28,216,402 km (0.117 R)
• M25: 29,262,391 km (0.072 R)
• M26: 29,649,251 km (0.114 R)
• M27: 31,230,500 km (0.106 R)
• M28: 33,706,644 km (0.12 R)
• M29: 36,757,543 km (0.036 R)

Planet 10 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313.9

Radius: 6.4

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.66 AU - 7.2 AU

Year: 9794 Days

Day: 23.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,445,946 km

• M1: 80,334 km (0.096 R)
• M2: 533,765 km (0.101 R)
• M3: 795,412 km (0.08 R)
• M4: 1,216,231 km (0.108 R)
• M5: 1,434,644 km (0.075 R)
• M6: 1,748,201 km (0.098 R)
• M7: 2,372,323 km (0.117 R)
• M8: 5,311,921 km (0.11 R)
• M9: 5,869,772 km (0.074 R)
• M10: 6,196,344 km (0.117 R)
• M11: 7,211,814 km (0.085 R)
• M12: 7,472,713 km (0.057 R)
• M13: 8,172,681 km (0.113 R)
• M14: 8,415,479 km (0.1 R)
• M15: 11,413,719 km (0.091 R)
• M16: 12,553,206 km (0.069 R)
• M17: 15,056,427 km (0.054 R)
• M18: 17,738,717 km (0.033 R)
• M19: 31,654,760 km (0.107 R)
• M20: 32,963,143 km (0.055 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 282 - 11,073 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit