🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.7 AU - 0.92 AU

Year: 279 Days

Day: 17.1 Hours

Environment

Temp: 48 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 78,544,628 km

• M1: 38,147 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.56 AU - 2.6 AU

Year: 1587 Days

Day: 36.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,544,628 km

• M1: 1,814,772 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731

Radius: 14.8

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 4.48 AU - 6.88 AU

Year: 5183 Days

Day: 10.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,544,628 km

• M1: 184,155 km (0.079 R)
• M2: 674,986 km (0.103 R)
• M3: 1,184,965 km (0.047 R)
• M4: 1,814,772 km (0.047 R)
• M5: 3,363,858 km (0.077 R)
• M6: 5,077,053 km (0.071 R)
• M7: 5,614,109 km (0.117 R)
• M8: 6,346,690 km (0.091 R)
• M9: 6,869,983 km (0.078 R)
• M10: 7,386,694 km (0.114 R)
• M11: 9,383,078 km (0.079 R)
• M12: 11,766,321 km (0.092 R)
• M13: 14,641,293 km (0.098 R)
• M14: 15,617,569 km (0.075 R)
• M15: 17,007,034 km (0.105 R)
• M16: 17,763,850 km (0.069 R)
• M17: 18,874,614 km (0.089 R)
• M18: 19,413,016 km (0.073 R)
• M19: 20,946,993 km (0.077 R)
• M20: 21,451,587 km (0.069 R)
• M21: 22,038,310 km (0.099 R)
• M22: 24,651,934 km (0.051 R)
• M23: 25,133,789 km (0.099 R)
• M24: 26,533,426 km (0.114 R)
• M25: 29,848,814 km (0.084 R)
• M26: 31,511,894 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.1

Radius: 13.3

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 6.17 AU - 8.65 AU

Year: 7723 Days

Day: 9.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,544,628 km

• M1: 165,455 km (0.03 R)
• M2: 811,120 km (0.111 R)
• M3: 1,309,131 km (0.027 R)
• M4: 1,739,075 km (0.107 R)
• M5: 2,463,578 km (0.074 R)
• M6: 3,335,733 km (0.09 R)
• M7: 4,432,735 km (0.098 R)
• M8: 5,690,404 km (0.096 R)
• M9: 8,239,701 km (0.072 R)
• M10: 9,455,633 km (0.112 R)
• M11: 11,472,511 km (0.086 R)
• M12: 12,185,943 km (0.047 R)
• M13: 13,460,368 km (0.08 R)
• M14: 13,945,214 km (0.093 R)
• M15: 17,103,973 km (0.099 R)
• M16: 17,889,961 km (0.06 R)
• M17: 18,625,384 km (0.118 R)
• M18: 23,818,375 km (0.086 R)
• M19: 42,007,531 km (0.114 R)
• M20: 44,232,201 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.3

Radius: 13.1

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 7.5 AU - 11.82 AU

Year: 11496 Days

Day: 6 Hours

Environment

Temp: -181 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,544,628 km

• M1: 163,062 km (0.092 R)
• M2: 641,476 km (0.033 R)
• M3: 1,289,085 km (0.075 R)
• M4: 2,098,559 km (0.115 R)
• M5: 2,690,966 km (0.116 R)
• M6: 3,645,102 km (0.109 R)
• M7: 4,389,052 km (0.105 R)
• M8: 7,448,777 km (0.068 R)
• M9: 9,172,743 km (0.09 R)
• M10: 9,819,604 km (0.079 R)
• M11: 15,028,752 km (0.097 R)
• M12: 16,864,467 km (0.084 R)
• M13: 18,845,293 km (0.084 R)
• M14: 24,375,028 km (0.104 R)
• M15: 27,406,480 km (0.113 R)
• M16: 30,462,016 km (0.082 R)
• M17: 35,642,441 km (0.041 R)
• M18: 37,996,064 km (0.111 R)
• M19: 45,533,403 km (0.12 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.1

Radius: 6.4

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 10.79 AU - 15.37 AU

Year: 18113 Days

Day: 24.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,544,628 km

• M1: 171,738 km (0.101 R)
• M2: 703,559 km (0.06 R)
• M3: 913,145 km (0.073 R)
• M4: 2,327,743 km (0.097 R)
• M5: 3,219,645 km (0.114 R)
• M6: 4,203,551 km (0.078 R)
• M7: 4,440,364 km (0.067 R)
• M8: 5,305,937 km (0.105 R)
• M9: 6,909,028 km (0.081 R)
• M10: 7,842,968 km (0.099 R)
• M11: 8,620,278 km (0.091 R)
• M12: 9,700,973 km (0.041 R)
• M13: 10,704,625 km (0.057 R)
• M14: 14,865,092 km (0.112 R)
• M15: 16,926,999 km (0.079 R)
• M16: 18,613,117 km (0.068 R)
• M17: 26,984,464 km (0.097 R)
• M18: 28,429,280 km (0.115 R)
• M19: 34,247,141 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.9

Radius: 4.9

Gravity: 13.12 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 15.12 AU - 22.26 AU

Year: 30937 Days

Day: 15.1 Hours

Environment

Temp: -197 °C

Axial Tilt: 128.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 78,544,628 km

• M1: 73,303 km (0.049 R)
• M2: 241,451 km (0.042 R)
• M3: 707,897 km (0.106 R)
• M4: 1,003,503 km (0.064 R)
• M5: 1,675,347 km (0.115 R)
• M6: 4,539,697 km (0.111 R)
• M7: 4,861,183 km (0.085 R)
• M8: 5,670,358 km (0.041 R)
• M9: 6,214,296 km (0.108 R)
• M10: 6,838,119 km (0.113 R)
• M11: 7,117,867 km (0.119 R)
• M12: 7,800,332 km (0.067 R)
• M13: 8,261,542 km (0.068 R)
• M14: 9,125,919 km (0.086 R)
• M15: 9,930,307 km (0.054 R)
• M16: 13,843,937 km (0.12 R)
• M17: 15,059,419 km (0.047 R)
• M18: 16,261,887 km (0.091 R)
• M19: 17,440,718 km (0.113 R)
• M20: 18,947,468 km (0.047 R)
• M21: 19,592,235 km (0.094 R)
• M22: 20,251,662 km (0.114 R)
• M23: 22,318,357 km (0.089 R)
• M24: 22,727,357 km (0.111 R)
• M25: 24,413,475 km (0.104 R)
• M26: 25,843,481 km (0.056 R)
• M27: 28,151,178 km (0.076 R)
• M28: 28,628,545 km (0.103 R)
• M29: 30,342,188 km (0.036 R)
• M30: 32,775,547 km (0.114 R)
• M31: 33,837,842 km (0.075 R)
• M32: 34,242,055 km (0.061 R)
• M33: 34,786,142 km (0.065 R)
• M34: 35,060,206 km (0.109 R)
• M35: 38,756,470 km (0.084 R)
• M36: 43,492,888 km (0.062 R)
• M37: 48,430,067 km (0.113 R)
• M38: 51,564,740 km (0.11 R)
• M39: 55,203,260 km (0.103 R)
• M40: 60,976,242 km (0.097 R)
• M41: 64,213,540 km (0.109 R)
• M42: 67,563,634 km (0.104 R)
• M43: 75,065,519 km (0.079 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 15,254 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit