🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.48 AU - 0.72 AU

Year: 305 Days

Day: 33 Hours

Environment

Temp: -123 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.52 AU - 0.68 AU

Year: 305 Days

Day: 45.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.9

Radius: 8.4

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.73 AU - 0.77 AU

Year: 426 Days

Day: 13.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,967,778 km

• M1: 104,419 km (0.063 R)
• M2: 559,496 km (0.103 R)
• M3: 1,418,487 km (0.076 R)
• M4: 1,869,973 km (0.064 R)
• M5: 2,213,600 km (0.055 R)
• M6: 2,487,214 km (0.086 R)
• M7: 3,623,709 km (0.075 R)
• M8: 4,470,134 km (0.069 R)
• M9: 5,029,032 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.1

Radius: 11.9

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.46 AU - 2.12 AU

Year: 1571 Days

Day: 7.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,967,778 km

• M1: 147,952 km (0.101 R)
• M2: 624,870 km (0.089 R)
• M3: 1,014,274 km (0.108 R)
• M4: 1,390,662 km (0.115 R)
• M5: 1,762,113 km (0.11 R)
• M6: 2,319,216 km (0.036 R)
• M7: 3,078,874 km (0.085 R)
• M8: 3,980,051 km (0.099 R)
• M9: 4,379,328 km (0.104 R)
• M10: 4,785,486 km (0.077 R)
• M11: 5,237,870 km (0.089 R)
• M12: 6,397,852 km (0.09 R)
• M13: 9,252,329 km (0.051 R)
• M14: 9,924,472 km (0.1 R)
• M15: 11,876,725 km (0.102 R)
• M16: 13,101,034 km (0.118 R)
• M17: 13,784,696 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.7

Radius: 11.6

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.03 AU - 2.43 AU

Year: 2185 Days

Day: 10.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,967,778 km

• M1: 144,661 km (0.096 R)
• M2: 579,393 km (0.065 R)
• M3: 1,064,987 km (0.11 R)
• M4: 2,011,493 km (0.104 R)
• M5: 3,334,088 km (0.111 R)
• M6: 3,915,425 km (0.119 R)
• M7: 4,968,145 km (0.091 R)
• M8: 6,779,476 km (0.046 R)
• M9: 7,194,610 km (0.088 R)
• M10: 12,663,759 km (0.064 R)
• M11: 14,036,170 km (0.115 R)
• M12: 16,772,764 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.6

Radius: 10.9

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.88 AU - 3.24 AU

Year: 3511 Days

Day: 7.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,967,778 km

• M1: 135,685 km (0.088 R)
• M2: 631,153 km (0.032 R)
• M3: 1,044,941 km (0.097 R)
• M4: 1,512,285 km (0.08 R)
• M5: 2,157,650 km (0.066 R)
• M6: 2,529,550 km (0.084 R)
• M7: 3,653,030 km (0.084 R)
• M8: 4,207,440 km (0.114 R)
• M9: 5,181,023 km (0.068 R)
• M10: 6,018,921 km (0.1 R)
• M11: 6,557,772 km (0.049 R)
• M12: 7,067,003 km (0.077 R)
• M13: 7,732,116 km (0.105 R)
• M14: 8,508,080 km (0.116 R)
• M15: 10,533,784 km (0.09 R)
• M16: 11,658,910 km (0.086 R)
• M17: 12,095,287 km (0.112 R)
• M18: 13,094,002 km (0.118 R)
• M19: 13,661,427 km (0.095 R)
• M20: 17,304,434 km (0.076 R)
• M21: 17,644,022 km (0.11 R)
• M22: 20,085,160 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.2

Radius: 9.6

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.52 AU - 3.82 AU

Year: 3703 Days

Day: 9 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,967,778 km

• M1: 121,922 km (0.099 R)
• M2: 929,601 km (0.117 R)
• M3: 1,557,763 km (0.047 R)
• M4: 2,102,149 km (0.073 R)
• M5: 3,552,949 km (0.072 R)
• M6: 4,227,486 km (0.094 R)
• M7: 5,288,734 km (0.109 R)
• M8: 6,355,217 km (0.088 R)
• M9: 6,656,956 km (0.113 R)
• M10: 7,468,374 km (0.088 R)
• M11: 8,908,852 km (0.107 R)
• M12: 10,113,863 km (0.101 R)
• M13: 11,185,134 km (0.068 R)
• M14: 12,801,239 km (0.092 R)
• M15: 13,328,273 km (0.11 R)
• M16: 14,948,717 km (0.081 R)
• M17: 17,114,445 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582.9

Radius: 6.4

Gravity: 14.23 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 8.93 AU - 9.51 AU

Year: 18366 Days

Day: 18.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 58,967,778 km

• M1: 83,625 km (0.114 R)
• M2: 1,031,926 km (0.053 R)
• M3: 1,345,782 km (0.066 R)
• M4: 1,739,075 km (0.111 R)
• M5: 2,393,716 km (0.096 R)
• M6: 2,614,672 km (0.097 R)
• M7: 3,415,469 km (0.048 R)
• M8: 4,053,953 km (0.115 R)
• M9: 5,013,324 km (0.096 R)
• M10: 6,035,077 km (0.056 R)
• M11: 6,488,658 km (0.102 R)
• M12: 6,745,667 km (0.11 R)
• M13: 7,371,585 km (0.117 R)
• M14: 7,793,899 km (0.037 R)
• M15: 8,894,491 km (0.081 R)
• M16: 10,382,092 km (0.08 R)
• M17: 11,461,590 km (0.086 R)
• M18: 13,492,830 km (0.117 R)
• M19: 14,484,215 km (0.072 R)
• M20: 19,998,692 km (0.096 R)
• M21: 22,822,352 km (0.111 R)
• M22: 24,022,576 km (0.111 R)
• M23: 27,317,020 km (0.062 R)
• M24: 28,898,868 km (0.114 R)
• M25: 31,996,890 km (0.062 R)
• M26: 33,498,703 km (0.113 R)
• M27: 36,642,054 km (0.119 R)
• M28: 37,184,346 km (0.051 R)
• M29: 51,691,300 km (0.081 R)
• M30: 56,772,990 km (0.089 R)
• M31: 60,843,100 km (0.047 R)
• M32: 66,298,934 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 361.4

Radius: 7.5

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 7.36 AU - 11.36 AU

Year: 18786 Days

Day: 17.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,967,778 km

• M1: 93,499 km (0.103 R)
• M2: 352,901 km (0.053 R)
• M3: 737,368 km (0.075 R)
• M4: 1,046,736 km (0.114 R)
• M5: 1,399,638 km (0.115 R)
• M6: 1,682,826 km (0.113 R)
• M7: 2,114,267 km (0.058 R)
• M8: 2,617,514 km (0.097 R)
• M9: 3,173,270 km (0.077 R)
• M10: 4,180,662 km (0.033 R)
• M11: 5,458,228 km (0.109 R)
• M12: 6,563,756 km (0.098 R)
• M13: 9,835,162 km (0.028 R)
• M14: 13,260,505 km (0.111 R)
• M15: 16,261,737 km (0.037 R)
• M16: 17,407,059 km (0.057 R)
• M17: 18,280,561 km (0.114 R)
• M18: 18,687,018 km (0.1 R)
• M19: 22,159,783 km (0.102 R)
• M20: 24,437,560 km (0.087 R)
• M21: 25,632,847 km (0.09 R)
• M22: 28,681,951 km (0.041 R)
• M23: 30,577,356 km (0.067 R)
• M24: 37,280,089 km (0.105 R)
• M25: 40,488,813 km (0.03 R)
• M26: 42,443,010 km (0.053 R)
• M27: 43,012,829 km (0.09 R)
• M28: 48,063,103 km (0.117 R)
• M29: 48,681,989 km (0.112 R)
• M30: 50,890,353 km (0.07 R)
• M31: 51,211,091 km (0.062 R)
• M32: 51,694,891 km (0.102 R)
• M33: 53,660,457 km (0.099 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 421 - 19,465 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit