🌌 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 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.5 AU - 0.52 AU

Year: 232 Days

Day: 28.2 Hours

Environment

Temp: -114 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,086,146 km

• M1: 80,932 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.54 AU - 0.7 AU

Year: 310 Days

Day: 39.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 37.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.7

Radius: 13.9

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.69 AU - 0.75 AU

Year: 388 Days

Day: 8.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,086,146 km

• M1: 172,935 km (0.1 R)
• M2: 674,387 km (0.117 R)
• M3: 1,162,675 km (0.094 R)
• M4: 1,647,521 km (0.116 R)
• M5: 2,160,941 km (0.079 R)
• M6: 2,618,262 km (0.106 R)
• M7: 3,205,284 km (0.054 R)
• M8: 4,331,008 km (0.093 R)
• M9: 4,919,526 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.5

Radius: 13.6

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.72 AU - 0.82 AU

Year: 430 Days

Day: 7.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,086,146 km

• M1: 169,195 km (0.089 R)
• M2: 899,532 km (0.103 R)
• M3: 1,336,956 km (0.095 R)
• M4: 1,936,993 km (0.115 R)
• M5: 2,369,481 km (0.105 R)
• M6: 2,836,076 km (0.104 R)
• M7: 3,640,614 km (0.105 R)
• M8: 4,768,731 km (0.119 R)
• M9: 5,422,773 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.8

Radius: 11

Gravity: 6.73 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.81 AU - 0.91 AU

Year: 507 Days

Day: 7.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,086,146 km

• M1: 137,032 km (0.064 R)
• M2: 496,515 km (0.119 R)
• M3: 854,054 km (0.103 R)
• M4: 1,204,861 km (0.106 R)
• M5: 1,647,222 km (0.075 R)
• M6: 2,160,941 km (0.109 R)
• M7: 2,516,685 km (0.085 R)
• M8: 2,945,881 km (0.109 R)
• M9: 3,436,413 km (0.083 R)
• M10: 4,266,980 km (0.098 R)
• M11: 4,769,330 km (0.104 R)
• M12: 5,766,100 km (0.063 R)
• M13: 6,400,694 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.7

Radius: 11.3

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.75 AU - 2.15 AU

Year: 1731 Days

Day: 8.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,086,146 km

• M1: 141,968 km (0.027 R)
• M2: 559,047 km (0.096 R)
• M3: 1,863,391 km (0.044 R)
• M4: 2,393,267 km (0.095 R)
• M5: 2,876,468 km (0.078 R)
• M6: 9,965,462 km (0.113 R)
• M7: 10,721,829 km (0.118 R)
• M8: 13,140,527 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.9

Radius: 10.9

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.94 AU - 2.04 AU

Year: 1785 Days

Day: 11.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,086,146 km

• M1: 135,536 km (0.055 R)
• M2: 592,707 km (0.06 R)
• M3: 1,059,153 km (0.116 R)
• M4: 1,714,840 km (0.089 R)
• M5: 2,086,591 km (0.112 R)
• M6: 2,828,447 km (0.104 R)
• M7: 3,236,400 km (0.072 R)
• M8: 3,792,605 km (0.064 R)
• M9: 5,052,219 km (0.095 R)
• M10: 6,001,418 km (0.089 R)
• M11: 6,679,545 km (0.116 R)
• M12: 8,728,437 km (0.107 R)
• M13: 11,592,189 km (0.096 R)
• M14: 12,727,637 km (0.115 R)
• M15: 13,193,485 km (0.068 R)
• M16: 14,751,696 km (0.062 R)
• M17: 15,360,709 km (0.116 R)
• M18: 15,840,470 km (0.094 R)
• M19: 16,578,735 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 326.6

Radius: 12.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.06 AU - 7.08 AU

Year: 9509 Days

Day: 10.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 70,086,146 km

• M1: 162,613 km (0.031 R)
• M2: 622,327 km (0.038 R)
• M3: 1,527,843 km (0.114 R)
• M4: 2,138,502 km (0.115 R)
• M5: 2,644,890 km (0.118 R)
• M6: 3,231,164 km (0.092 R)
• M7: 5,711,647 km (0.097 R)
• M8: 6,977,993 km (0.105 R)
• M9: 8,423,557 km (0.097 R)
• M10: 9,131,454 km (0.118 R)
• M11: 10,198,087 km (0.067 R)
• M12: 10,761,622 km (0.088 R)
• M13: 12,106,058 km (0.107 R)
• M14: 12,631,446 km (0.079 R)
• M15: 14,591,328 km (0.097 R)
• M16: 16,875,687 km (0.109 R)
• M17: 18,069,179 km (0.076 R)
• M18: 19,106,191 km (0.065 R)
• M19: 22,771,040 km (0.03 R)
• M20: 23,491,802 km (0.112 R)
• M21: 24,476,306 km (0.098 R)
• M22: 24,894,582 km (0.084 R)
• M23: 27,415,455 km (0.088 R)
• M24: 28,414,620 km (0.097 R)
• M25: 29,063,126 km (0.11 R)
• M26: 32,555,040 km (0.112 R)
• M27: 33,985,495 km (0.1 R)
• M28: 34,506,394 km (0.079 R)
• M29: 35,244,660 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 759.9

Radius: 4.1

Gravity: 45.21 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 6.95 AU - 10.55 AU

Year: 16457 Days

Day: 24.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,086,146 km

• M1: 51,013 km (0.117 R)
• M2: 334,052 km (0.062 R)
• M3: 718,818 km (0.109 R)
• M4: 859,440 km (0.069 R)
• M5: 1,535,921 km (0.119 R)
• M6: 1,667,867 km (0.1 R)
• M7: 1,861,596 km (0.077 R)
• M8: 2,109,928 km (0.073 R)
• M9: 2,580,114 km (0.093 R)
• M10: 3,666,644 km (0.116 R)
• M11: 3,813,549 km (0.109 R)
• M12: 4,214,172 km (0.093 R)
• M13: 4,642,172 km (0.113 R)
• M14: 5,584,489 km (0.085 R)
• M15: 5,858,402 km (0.064 R)
• M16: 6,866,393 km (0.103 R)
• M17: 9,491,387 km (0.119 R)
• M18: 11,177,504 km (0.064 R)
• M19: 12,850,457 km (0.113 R)
• M20: 13,121,828 km (0.052 R)
• M21: 13,327,824 km (0.107 R)
• M22: 17,831,169 km (0.074 R)
• M23: 22,558,611 km (0.106 R)
• M24: 26,497,972 km (0.103 R)
• M25: 38,018,952 km (0.05 R)
• M26: 41,308,310 km (0.099 R)
• M27: 41,455,515 km (0.082 R)
• M28: 43,097,651 km (0.098 R)
• M29: 47,150,107 km (0.109 R)
• M30: 50,603,125 km (0.103 R)
• M31: 54,044,774 km (0.055 R)
• M32: 56,182,976 km (0.116 R)
• M33: 58,562,181 km (0.098 R)
• M34: 63,912,997 km (0.096 R)
• M35: 68,133,303 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 489

Radius: 6.9

Gravity: 10.27 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 7.99 AU - 12.55 AU

Year: 20926 Days

Day: 21 Hours

Environment

Temp: -238 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 70,086,146 km

• M1: 85,869 km (0.053 R)
• M2: 312,809 km (0.086 R)
• M3: 612,902 km (0.092 R)
• M4: 959,970 km (0.082 R)
• M5: 1,793,080 km (0.109 R)
• M6: 2,033,035 km (0.055 R)
• M7: 2,693,958 km (0.053 R)
• M8: 2,960,243 km (0.061 R)
• M9: 3,777,197 km (0.095 R)
• M10: 4,111,697 km (0.072 R)
• M11: 5,198,227 km (0.076 R)
• M12: 7,078,672 km (0.043 R)
• M13: 7,353,483 km (0.051 R)
• M14: 8,575,997 km (0.057 R)
• M15: 8,888,507 km (0.098 R)
• M16: 10,685,178 km (0.083 R)
• M17: 12,247,727 km (0.114 R)
• M18: 12,981,206 km (0.119 R)
• M19: 13,324,234 km (0.105 R)
• M20: 14,389,370 km (0.105 R)
• M21: 16,052,899 km (0.118 R)
• M22: 17,257,910 km (0.118 R)
• M23: 17,672,595 km (0.111 R)
• M24: 18,956,893 km (0.085 R)
• M25: 20,394,079 km (0.116 R)
• M26: 21,139,376 km (0.037 R)
• M27: 30,693,145 km (0.088 R)
• M28: 32,292,944 km (0.11 R)
• M29: 33,432,581 km (0.067 R)
• M30: 35,258,124 km (0.03 R)
• M31: 36,466,276 km (0.116 R)
• M32: 38,681,821 km (0.118 R)
• M33: 41,132,383 km (0.104 R)
• M34: 47,141,580 km (0.102 R)
• M35: 55,487,795 km (0.063 R)
• M36: 63,578,796 km (0.053 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: 415 - 12,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit