🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.2

Radius: 9.3

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.46 AU - 0.6 AU

Year: 266 Days

Day: 7.2 Hours

Environment

Temp: -137 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,325,351 km

• M1: 115,639 km (0.102 R)
• M2: 419,173 km (0.075 R)
• M3: 838,346 km (0.059 R)
• M4: 1,152,053 km (0.095 R)
• M5: 1,736,981 km (0.114 R)
• M6: 2,094,819 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.7

Radius: 14.6

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.56 AU - 0.74 AU

Year: 362 Days

Day: 14.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 52,325,351 km

• M1: 182,809 km (0.075 R)
• M2: 712,684 km (0.117 R)
• M3: 1,319,603 km (0.064 R)
• M4: 1,854,864 km (0.116 R)
• M5: 2,833,084 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.8

Radius: 8.1

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.96 AU - 1.12 AU

Year: 732 Days

Day: 14.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,325,351 km

• M1: 101,128 km (0.049 R)
• M2: 390,151 km (0.114 R)
• M3: 673,789 km (0.048 R)
• M4: 1,494,782 km (0.066 R)
• M5: 1,827,787 km (0.113 R)
• M6: 2,385,488 km (0.105 R)
• M7: 2,688,124 km (0.081 R)
• M8: 3,135,721 km (0.099 R)
• M9: 3,513,007 km (0.106 R)
• M10: 3,864,412 km (0.032 R)
• M11: 4,435,278 km (0.099 R)
• M12: 4,961,264 km (0.033 R)
• M13: 5,457,330 km (0.093 R)
• M14: 6,468,612 km (0.079 R)
• M15: 6,770,500 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.6

Radius: 11.2

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.38 AU - 1.64 AU

Year: 1281 Days

Day: 9.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 52,325,351 km

• M1: 139,425 km (0.086 R)
• M2: 773,421 km (0.106 R)
• M3: 1,243,906 km (0.074 R)
• M4: 1,734,887 km (0.104 R)
• M5: 2,232,449 km (0.064 R)
• M6: 3,494,008 km (0.066 R)
• M7: 4,267,429 km (0.114 R)
• M8: 4,752,276 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.6

Radius: 12.1

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 2.66 AU - 3.36 AU

Year: 3605 Days

Day: 6.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,325,351 km

• M1: 150,495 km (0.112 R)
• M2: 590,912 km (0.082 R)
• M3: 1,032,525 km (0.095 R)
• M4: 1,576,163 km (0.1 R)
• M5: 2,177,098 km (0.063 R)
• M6: 2,880,357 km (0.089 R)
• M7: 4,418,972 km (0.111 R)
• M8: 5,191,345 km (0.06 R)
• M9: 5,622,636 km (0.09 R)
• M10: 7,148,833 km (0.039 R)
• M11: 8,213,521 km (0.109 R)
• M12: 9,346,426 km (0.061 R)
• M13: 9,842,044 km (0.064 R)
• M14: 12,589,259 km (0.107 R)
• M15: 14,650,867 km (0.065 R)
• M16: 16,061,127 km (0.041 R)
• M17: 16,721,900 km (0.119 R)
• M18: 17,506,691 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.9

Radius: 11.9

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 4.15 AU - 5.47 AU

Year: 7282 Days

Day: 9.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,325,351 km

• M1: 148,251 km (0.088 R)
• M2: 580,589 km (0.027 R)
• M3: 2,616,467 km (0.072 R)
• M4: 3,431,326 km (0.077 R)
• M5: 8,704,053 km (0.07 R)
• M6: 9,912,355 km (0.088 R)
• M7: 10,651,368 km (0.041 R)
• M8: 13,697,331 km (0.058 R)
• M9: 14,909,223 km (0.115 R)
• M10: 15,510,756 km (0.111 R)
• M11: 20,404,701 km (0.098 R)
• M12: 22,684,423 km (0.115 R)
• M13: 27,924,986 km (0.063 R)
• M14: 28,655,023 km (0.07 R)
• M15: 29,774,015 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.2

Radius: 13.8

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.24 AU - 5.82 AU

Year: 8976 Days

Day: 9.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,325,351 km

• M1: 171,589 km (0.082 R)
• M2: 1,027,438 km (0.095 R)
• M3: 1,633,908 km (0.118 R)
• M4: 2,726,421 km (0.075 R)
• M5: 4,233,171 km (0.103 R)
• M6: 5,359,643 km (0.103 R)
• M7: 6,865,495 km (0.084 R)
• M8: 7,452,218 km (0.112 R)
• M9: 12,950,538 km (0.116 R)
• M10: 14,033,327 km (0.11 R)
• M11: 23,193,803 km (0.115 R)
• M12: 26,361,987 km (0.108 R)
• M13: 26,836,960 km (0.059 R)
• M14: 28,395,621 km (0.033 R)
• M15: 32,773,303 km (0.082 R)
• M16: 37,701,805 km (0.107 R)
• M17: 44,162,189 km (0.067 R)
• M18: 44,698,198 km (0.085 R)
• M19: 45,646,499 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 822.5

Radius: 5.4

Gravity: 28.21 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.31 AU - 6.19 AU

Year: 9517 Days

Day: 21.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,325,351 km

• M1: 67,169 km (0.09 R)
• M2: 373,845 km (0.114 R)
• M3: 791,074 km (0.066 R)
• M4: 1,741,469 km (0.092 R)
• M5: 2,441,288 km (0.05 R)
• M6: 2,621,703 km (0.091 R)
• M7: 3,032,349 km (0.11 R)
• M8: 3,385,998 km (0.089 R)
• M9: 4,405,059 km (0.077 R)
• M10: 6,369,279 km (0.086 R)
• M11: 6,635,563 km (0.107 R)
• M12: 8,257,204 km (0.111 R)
• M13: 9,474,482 km (0.064 R)
• M14: 10,700,137 km (0.075 R)
• M15: 11,022,222 km (0.12 R)
• M16: 14,155,399 km (0.076 R)
• M17: 16,028,514 km (0.093 R)
• M18: 18,136,348 km (0.084 R)
• M19: 20,014,849 km (0.113 R)
• M20: 32,037,880 km (0.089 R)
• M21: 33,385,458 km (0.104 R)
• M22: 36,675,713 km (0.116 R)
• M23: 37,162,804 km (0.113 R)
• M24: 41,741,845 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.1

Radius: 4.2

Gravity: 34.59 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 7.47 AU - 8.63 AU

Year: 15765 Days

Day: 21.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 52,325,351 km

• M1: 52,210 km (0.114 R)
• M2: 275,858 km (0.085 R)
• M3: 1,051,075 km (0.116 R)
• M4: 1,227,002 km (0.093 R)
• M5: 1,466,957 km (0.111 R)
• M6: 1,858,305 km (0.058 R)
• M7: 2,097,512 km (0.095 R)
• M8: 3,162,948 km (0.08 R)
• M9: 3,614,285 km (0.067 R)
• M10: 4,229,431 km (0.035 R)
• M11: 4,545,830 km (0.115 R)
• M12: 5,442,071 km (0.117 R)
• M13: 6,869,235 km (0.041 R)
• M14: 7,306,061 km (0.118 R)
• M15: 7,622,760 km (0.117 R)
• M16: 8,090,851 km (0.109 R)
• M17: 8,778,104 km (0.116 R)
• M18: 9,717,878 km (0.081 R)
• M19: 10,156,349 km (0.091 R)
• M20: 10,722,876 km (0.069 R)
• M21: 11,611,637 km (0.099 R)
• M22: 13,134,095 km (0.083 R)
• M23: 14,289,738 km (0.099 R)
• M24: 14,500,522 km (0.116 R)
• M25: 16,034,199 km (0.05 R)
• M26: 16,185,742 km (0.07 R)
• M27: 21,006,084 km (0.077 R)
• M28: 21,923,718 km (0.119 R)
• M29: 26,174,691 km (0.089 R)
• M30: 29,445,648 km (0.078 R)
• M31: 34,846,730 km (0.111 R)
• M32: 37,846,167 km (0.029 R)
• M33: 40,590,390 km (0.087 R)
• M34: 41,438,909 km (0.099 R)
• M35: 43,759,023 km (0.104 R)
• M36: 47,088,623 km (0.108 R)
• M37: 48,656,408 km (0.073 R)
• M38: 49,613,535 km (0.064 R)
• M39: 50,096,886 km (0.037 R)
• M40: 59,159,974 km (0.112 R)
• M41: 59,521,851 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 285

Radius: 4.9

Gravity: 11.87 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.87 AU - 10.51 AU

Year: 17682 Days

Day: 16.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,325,351 km

• M1: 67,469 km (0.11 R)
• M2: 402,717 km (0.088 R)
• M3: 1,633,010 km (0.068 R)
• M4: 1,855,014 km (0.067 R)
• M5: 2,928,827 km (0.109 R)
• M6: 3,380,762 km (0.091 R)
• M7: 3,558,634 km (0.063 R)
• M8: 4,216,266 km (0.088 R)
• M9: 5,556,813 km (0.082 R)
• M10: 9,791,031 km (0.062 R)
• M11: 14,815,276 km (0.042 R)
• M12: 15,018,579 km (0.108 R)
• M13: 21,068,467 km (0.087 R)
• M14: 23,185,426 km (0.106 R)
• M15: 24,767,872 km (0.043 R)
• M16: 26,520,411 km (0.077 R)
• M17: 32,727,526 km (0.03 R)
• M18: 35,073,969 km (0.109 R)
• M19: 41,964,746 km (0.084 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: 202 - 13,136 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit