🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.58 AU - 0.64 AU

Year: 175 Days

Day: 29.8 Hours

Environment

Temp: 209 °C

Axial Tilt: 8.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.68 AU - 2.74 AU

Year: 1206 Days

Day: 30.5 Hours

Environment

Temp: -71 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.4

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.7 AU - 4.06 AU

Year: 2806 Days

Day: 32.9 Hours

Environment

Temp: -126 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 97,892,619 km

• M1: 225,893 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.5

Radius: 14.7

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 6.51 AU - 7.83 AU

Year: 7048 Days

Day: 10.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 97,892,619 km

• M1: 182,809 km (0.094 R)
• M2: 679,474 km (0.12 R)
• M3: 1,303,745 km (0.109 R)
• M4: 1,895,704 km (0.107 R)
• M5: 2,359,158 km (0.095 R)
• M6: 3,021,428 km (0.104 R)
• M7: 4,079,384 km (0.113 R)
• M8: 5,159,481 km (0.12 R)
• M9: 6,147,874 km (0.096 R)
• M10: 6,850,386 km (0.082 R)
• M11: 7,566,959 km (0.102 R)
• M12: 13,944,915 km (0.114 R)
• M13: 18,507,201 km (0.114 R)
• M14: 19,674,962 km (0.073 R)
• M15: 20,891,343 km (0.092 R)
• M16: 22,644,929 km (0.047 R)
• M17: 27,924,537 km (0.103 R)
• M18: 31,051,282 km (0.106 R)
• M19: 35,389,471 km (0.107 R)
• M20: 37,301,331 km (0.064 R)
• M21: 38,340,887 km (0.033 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556

Radius: 9.7

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.68 AU - 9.42 AU

Year: 7615 Days

Day: 12.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 97,892,619 km

• M1: 120,725 km (0.097 R)
• M2: 647,310 km (0.03 R)
• M3: 1,036,564 km (0.118 R)
• M4: 1,660,088 km (0.074 R)
• M5: 2,308,445 km (0.08 R)
• M6: 3,552,800 km (0.099 R)
• M7: 6,859,661 km (0.104 R)
• M8: 8,808,023 km (0.117 R)
• M9: 11,248,862 km (0.109 R)
• M10: 12,383,263 km (0.09 R)
• M11: 13,366,719 km (0.107 R)
• M12: 19,292,889 km (0.082 R)
• M13: 21,914,143 km (0.112 R)
• M14: 22,465,411 km (0.097 R)
• M15: 23,269,201 km (0.064 R)
• M16: 25,276,206 km (0.077 R)
• M17: 30,990,396 km (0.061 R)
• M18: 31,485,565 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 356.3

Radius: 3.9

Gravity: 23.43 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 10.71 AU - 15.83 AU

Year: 17745 Days

Day: 20.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 97,892,619 km

• M1: 51,611 km (0.079 R)
• M2: 231,578 km (0.045 R)
• M3: 361,578 km (0.074 R)
• M4: 513,869 km (0.107 R)
• M5: 744,399 km (0.09 R)
• M6: 941,270 km (0.069 R)
• M7: 1,714,092 km (0.105 R)
• M8: 1,915,750 km (0.118 R)
• M9: 2,346,592 km (0.072 R)
• M10: 2,595,523 km (0.1 R)
• M11: 2,726,571 km (0.086 R)
• M12: 3,770,914 km (0.071 R)
• M13: 5,909,565 km (0.117 R)
• M14: 6,098,656 km (0.05 R)
• M15: 7,849,699 km (0.093 R)
• M16: 8,264,235 km (0.07 R)
• M17: 8,596,642 km (0.104 R)
• M18: 9,389,810 km (0.103 R)
• M19: 13,244,199 km (0.079 R)
• M20: 15,126,589 km (0.1 R)
• M21: 18,273,230 km (0.088 R)
• M22: 19,164,086 km (0.088 R)
• M23: 23,580,065 km (0.068 R)
• M24: 24,537,791 km (0.077 R)
• M25: 27,252,693 km (0.114 R)
• M26: 30,272,775 km (0.11 R)
• M27: 30,496,723 km (0.069 R)
• M28: 33,032,855 km (0.09 R)
• M29: 33,270,118 km (0.117 R)
• M30: 34,717,776 km (0.115 R)
• M31: 43,721,773 km (0.106 R)
• M32: 55,491,535 km (0.076 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.7

Radius: 6

Gravity: 26.21 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 12.65 AU - 14.79 AU

Year: 18655 Days

Day: 19.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 111.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 97,892,619 km

• M1: 76,594 km (0.103 R)
• M2: 341,682 km (0.105 R)
• M3: 537,804 km (0.113 R)
• M4: 1,096,104 km (0.052 R)
• M5: 1,429,408 km (0.032 R)
• M6: 1,717,683 km (0.088 R)
• M7: 2,190,113 km (0.116 R)
• M8: 3,333,190 km (0.112 R)
• M9: 4,066,220 km (0.084 R)
• M10: 4,901,574 km (0.05 R)
• M11: 6,584,849 km (0.083 R)
• M12: 7,781,782 km (0.096 R)
• M13: 10,412,760 km (0.094 R)
• M14: 11,233,454 km (0.047 R)
• M15: 17,170,395 km (0.108 R)
• M16: 17,516,863 km (0.102 R)
• M17: 18,949,861 km (0.045 R)
• M18: 19,600,612 km (0.074 R)
• M19: 22,870,672 km (0.086 R)
• M20: 24,799,138 km (0.044 R)
• M21: 32,138,111 km (0.101 R)
• M22: 32,664,545 km (0.063 R)
• M23: 41,730,176 km (0.091 R)
• M24: 43,307,836 km (0.064 R)
• M25: 44,924,839 km (0.118 R)
• M26: 45,748,226 km (0.093 R)
• M27: 50,546,278 km (0.037 R)
• M28: 51,257,915 km (0.119 R)
• M29: 52,883,745 km (0.075 R)
• M30: 54,729,932 km (0.119 R)
• M31: 56,428,018 km (0.116 R)
• M32: 59,532,921 km (0.118 R)
• M33: 61,127,186 km (0.074 R)
• M34: 66,718,107 km (0.065 R)
• M35: 71,518,104 km (0.077 R)
• M36: 71,965,552 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 177.9

Radius: 5.6

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 11.67 AU - 17.43 AU

Year: 20374 Days

Day: 16.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 97,892,619 km

• M1: 107,860 km (0.107 R)
• M2: 524,191 km (0.059 R)
• M3: 1,408,015 km (0.089 R)
• M4: 1,589,029 km (0.079 R)
• M5: 2,762,624 km (0.057 R)
• M6: 3,628,347 km (0.089 R)
• M7: 4,571,861 km (0.066 R)
• M8: 7,252,954 km (0.055 R)
• M9: 7,543,024 km (0.107 R)
• M10: 12,935,279 km (0.045 R)
• M11: 14,437,541 km (0.113 R)
• M12: 17,561,294 km (0.07 R)
• M13: 19,636,665 km (0.115 R)
• M14: 20,940,710 km (0.053 R)
• M15: 22,475,584 km (0.082 R)
• M16: 26,151,952 km (0.111 R)
• M17: 43,085,384 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.9

Radius: 6.8

Gravity: 20.43 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 15.35 AU - 17.87 AU

Year: 24850 Days

Day: 22.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 56.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 97,892,619 km

• M1: 84,672 km (0.083 R)
• M2: 309,518 km (0.073 R)
• M3: 990,338 km (0.079 R)
• M4: 1,305,840 km (0.116 R)
• M5: 1,904,680 km (0.114 R)
• M6: 2,185,924 km (0.079 R)
• M7: 2,646,985 km (0.08 R)
• M8: 2,998,390 km (0.093 R)
• M9: 3,536,045 km (0.106 R)
• M10: 4,031,513 km (0.112 R)
• M11: 6,486,115 km (0.068 R)
• M12: 6,974,702 km (0.054 R)
• M13: 7,227,971 km (0.072 R)
• M14: 8,247,031 km (0.105 R)
• M15: 8,473,223 km (0.074 R)
• M16: 8,703,455 km (0.116 R)
• M17: 9,667,014 km (0.095 R)
• M18: 12,606,313 km (0.11 R)
• M19: 17,169,348 km (0.111 R)
• M20: 18,582,000 km (0.099 R)
• M21: 24,541,231 km (0.03 R)
• M22: 25,009,922 km (0.101 R)
• M23: 27,318,666 km (0.049 R)
• M24: 29,238,904 km (0.113 R)
• M25: 31,798,075 km (0.108 R)
• M26: 32,777,492 km (0.119 R)
• M27: 39,718,683 km (0.094 R)
• M28: 53,032,296 km (0.089 R)
• M29: 60,150,910 km (0.08 R)
• M30: 66,284,573 km (0.103 R)
• M31: 70,204,785 km (0.11 R)
• M32: 72,341,491 km (0.098 R)
• M33: 73,063,301 km (0.111 R)
• M34: 83,678,167 km (0.066 R)
• M35: 89,627,675 km (0.086 R)
• M36: 93,557,012 km (0.07 R)
• M37: 94,987,617 km (0.118 R)
• M38: 96,142,662 km (0.09 R)
• M39: 97,306,982 km (0.108 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 19,847 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit