🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.2

Radius: 14.1

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.55 AU - 0.61 AU

Year: 305 Days

Day: 9.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 67,870,705 km

• M1: 175,329 km (0.069 R)
• M2: 628,311 km (0.087 R)
• M3: 1,193,641 km (0.063 R)
• M4: 1,644,679 km (0.1 R)
• M5: 2,344,348 km (0.074 R)
• M6: 2,841,761 km (0.092 R)
• M7: 3,333,639 km (0.106 R)
• M8: 4,242,895 km (0.116 R)
• M9: 4,791,321 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.6

Radius: 11.5

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.64 AU - 0.82 AU

Year: 431 Days

Day: 9.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,870,705 km

• M1: 143,016 km (0.114 R)
• M2: 534,214 km (0.119 R)
• M3: 943,215 km (0.082 R)
• M4: 1,400,236 km (0.051 R)
• M5: 1,758,523 km (0.101 R)
• M6: 2,274,636 km (0.117 R)
• M7: 2,696,801 km (0.027 R)
• M8: 3,446,735 km (0.092 R)
• M9: 3,813,848 km (0.114 R)
• M10: 4,715,474 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.5

Radius: 13.6

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.23 AU - 1.53 AU

Year: 1119 Days

Day: 7.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 67,870,705 km

• M1: 170,242 km (0.044 R)
• M2: 1,109,567 km (0.027 R)
• M3: 1,532,929 km (0.107 R)
• M4: 2,067,742 km (0.055 R)
• M5: 4,455,025 km (0.085 R)
• M6: 4,958,122 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.3

Radius: 14.3

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.64 AU - 1.9 AU

Year: 1625 Days

Day: 11.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,870,705 km

• M1: 177,872 km (0.109 R)
• M2: 976,575 km (0.086 R)
• M3: 1,497,923 km (0.115 R)
• M4: 4,069,960 km (0.05 R)
• M5: 4,652,943 km (0.116 R)
• M6: 5,487,399 km (0.118 R)
• M7: 6,225,216 km (0.115 R)
• M8: 7,266,268 km (0.095 R)
• M9: 8,070,656 km (0.066 R)
• M10: 8,599,185 km (0.099 R)
• M11: 10,393,761 km (0.074 R)
• M12: 11,163,143 km (0.085 R)
• M13: 12,159,016 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.8

Radius: 11.3

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.13 AU - 2.33 AU

Year: 2299 Days

Day: 10.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 138.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 67,870,705 km

• M1: 140,622 km (0.063 R)
• M2: 588,518 km (0.118 R)
• M3: 1,101,788 km (0.071 R)
• M4: 1,467,705 km (0.055 R)
• M5: 2,544,959 km (0.118 R)
• M6: 3,592,593 km (0.114 R)
• M7: 4,609,858 km (0.11 R)
• M8: 7,259,685 km (0.112 R)
• M9: 8,197,963 km (0.087 R)
• M10: 8,726,493 km (0.118 R)
• M11: 9,371,708 km (0.116 R)
• M12: 10,348,283 km (0.089 R)
• M13: 11,571,994 km (0.113 R)
• M14: 12,313,251 km (0.052 R)
• M15: 13,164,912 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.8

Radius: 8.6

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.63 AU - 5.67 AU

Year: 6921 Days

Day: 12.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,870,705 km

• M1: 106,962 km (0.09 R)
• M2: 464,053 km (0.094 R)
• M3: 1,032,973 km (0.086 R)
• M4: 1,569,581 km (0.074 R)
• M5: 2,623,947 km (0.1 R)
• M6: 3,232,361 km (0.118 R)
• M7: 6,573,779 km (0.045 R)
• M8: 7,480,342 km (0.069 R)
• M9: 10,173,254 km (0.078 R)
• M10: 10,924,684 km (0.062 R)
• M11: 12,193,274 km (0.063 R)
• M12: 13,091,908 km (0.1 R)
• M13: 13,820,898 km (0.048 R)
• M14: 16,111,391 km (0.118 R)
• M15: 16,766,630 km (0.057 R)
• M16: 18,130,215 km (0.117 R)
• M17: 23,109,131 km (0.06 R)
• M18: 24,250,114 km (0.118 R)
• M19: 26,072,067 km (0.088 R)
• M20: 27,898,357 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657

Radius: 12.8

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 4.43 AU - 6.37 AU

Year: 8662 Days

Day: 12 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,870,705 km

• M1: 159,471 km (0.108 R)
• M2: 621,130 km (0.097 R)
• M3: 1,049,130 km (0.097 R)
• M4: 2,507,410 km (0.091 R)
• M5: 3,329,749 km (0.115 R)
• M6: 3,730,522 km (0.077 R)
• M7: 4,659,076 km (0.08 R)
• M8: 5,835,813 km (0.116 R)
• M9: 6,972,757 km (0.09 R)
• M10: 8,337,239 km (0.088 R)
• M11: 11,911,431 km (0.11 R)
• M12: 26,070,571 km (0.071 R)
• M13: 30,633,605 km (0.058 R)
• M14: 33,699,912 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.6

Radius: 4.6

Gravity: 21.53 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 9.57 AU - 9.71 AU

Year: 20660 Days

Day: 23.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,870,705 km

• M1: 57,296 km (0.118 R)
• M2: 227,838 km (0.095 R)
• M3: 703,409 km (0.068 R)
• M4: 850,464 km (0.118 R)
• M5: 1,129,614 km (0.114 R)
• M6: 2,000,273 km (0.046 R)
• M7: 4,142,066 km (0.077 R)
• M8: 5,117,294 km (0.056 R)
• M9: 5,677,688 km (0.113 R)
• M10: 6,032,983 km (0.048 R)
• M11: 6,919,500 km (0.05 R)
• M12: 7,556,787 km (0.105 R)
• M13: 8,790,820 km (0.058 R)
• M14: 9,482,710 km (0.114 R)
• M15: 12,748,431 km (0.112 R)
• M16: 13,152,046 km (0.092 R)
• M17: 13,984,708 km (0.079 R)
• M18: 15,148,729 km (0.062 R)
• M19: 15,985,580 km (0.068 R)
• M20: 16,613,292 km (0.096 R)
• M21: 18,852,922 km (0.084 R)
• M22: 22,431,602 km (0.112 R)
• M23: 22,920,787 km (0.081 R)
• M24: 23,819,272 km (0.106 R)
• M25: 25,474,124 km (0.097 R)
• M26: 25,899,431 km (0.088 R)
• M27: 30,061,393 km (0.072 R)
• M28: 31,623,344 km (0.095 R)
• M29: 34,259,558 km (0.106 R)
• M30: 43,190,401 km (0.06 R)
• M31: 47,221,914 km (0.083 R)
• M32: 47,863,689 km (0.097 R)
• M33: 50,655,784 km (0.09 R)
• M34: 52,690,764 km (0.1 R)
• M35: 55,844,436 km (0.085 R)
• M36: 56,023,206 km (0.102 R)
• M37: 56,561,908 km (0.117 R)
• M38: 56,742,323 km (0.046 R)
• M39: 58,198,808 km (0.077 R)
• M40: 62,332,346 km (0.102 R)
• M41: 64,470,698 km (0.081 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 10,961 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit