🌌 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 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.7

Radius: 11.5

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.45 AU - 0.75 AU

Year: 310 Days

Day: 12.6 Hours

Environment

Temp: -140 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,905,497 km

• M1: 143,315 km (0.045 R)
• M2: 551,268 km (0.119 R)
• M3: 1,018,761 km (0.115 R)
• M4: 1,648,269 km (0.083 R)
• M5: 2,398,802 km (0.116 R)
• M6: 3,711,074 km (0.109 R)
• M7: 4,670,146 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.7

Radius: 11.8

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.56 AU - 0.92 AU

Year: 424 Days

Day: 14.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 52.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,905,497 km

• M1: 146,756 km (0.058 R)
• M2: 524,939 km (0.085 R)
• M3: 1,045,839 km (0.067 R)
• M4: 1,509,143 km (0.05 R)
• M5: 2,489,907 km (0.112 R)
• M6: 2,872,878 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.5

Radius: 11.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.42 AU - 1.5 AU

Year: 1176 Days

Day: 6.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,905,497 km

• M1: 144,212 km (0.095 R)
• M2: 587,471 km (0.099 R)
• M3: 1,075,309 km (0.084 R)
• M4: 1,756,728 km (0.081 R)
• M5: 3,461,695 km (0.039 R)
• M6: 4,454,426 km (0.092 R)
• M7: 4,837,247 km (0.039 R)
• M8: 5,202,565 km (0.102 R)
• M9: 5,924,076 km (0.119 R)
• M10: 6,298,070 km (0.118 R)
• M11: 6,664,436 km (0.079 R)
• M12: 7,746,327 km (0.08 R)
• M13: 8,248,378 km (0.091 R)
• M14: 9,494,528 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.1

Radius: 8

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.84 AU - 2.62 AU

Year: 2221 Days

Day: 6.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,905,497 km

• M1: 128,953 km (0.104 R)
• M2: 806,033 km (0.101 R)
• M3: 1,312,123 km (0.091 R)
• M4: 1,685,370 km (0.114 R)
• M5: 2,292,139 km (0.08 R)
• M6: 3,051,497 km (0.075 R)
• M7: 3,711,224 km (0.116 R)
• M8: 4,386,808 km (0.069 R)
• M9: 5,397,342 km (0.09 R)
• M10: 8,385,260 km (0.097 R)
• M11: 9,544,195 km (0.071 R)
• M12: 11,085,501 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.4

Radius: 8.5

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.13 AU - 2.35 AU

Year: 2236 Days

Day: 11.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,905,497 km

• M1: 105,766 km (0.049 R)
• M2: 434,133 km (0.062 R)
• M3: 740,210 km (0.111 R)
• M4: 1,338,153 km (0.092 R)
• M5: 1,726,958 km (0.077 R)
• M6: 2,066,844 km (0.067 R)
• M7: 2,547,652 km (0.087 R)
• M8: 2,944,086 km (0.102 R)
• M9: 3,330,647 km (0.091 R)
• M10: 3,714,515 km (0.062 R)
• M11: 4,127,704 km (0.041 R)
• M12: 4,655,187 km (0.079 R)
• M13: 5,023,796 km (0.076 R)
• M14: 5,844,639 km (0.09 R)
• M15: 6,326,045 km (0.105 R)
• M16: 6,616,863 km (0.116 R)
• M17: 7,339,571 km (0.099 R)
• M18: 8,022,036 km (0.107 R)
• M19: 8,300,288 km (0.079 R)
• M20: 8,649,150 km (0.105 R)
• M21: 9,410,454 km (0.117 R)
• M22: 11,488,817 km (0.106 R)
• M23: 12,822,632 km (0.079 R)
• M24: 13,332,461 km (0.074 R)
• M25: 13,811,474 km (0.075 R)
• M26: 14,528,796 km (0.067 R)
• M27: 15,412,620 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.8

Radius: 12.9

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.75 AU - 4.97 AU

Year: 7145 Days

Day: 12.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,905,497 km

• M1: 168,597 km (0.103 R)
• M2: 711,637 km (0.081 R)
• M3: 2,096,913 km (0.116 R)
• M4: 3,013,799 km (0.098 R)
• M5: 3,431,626 km (0.107 R)
• M6: 4,283,286 km (0.041 R)
• M7: 4,787,132 km (0.076 R)
• M8: 5,449,850 km (0.108 R)
• M9: 5,914,501 km (0.067 R)
• M10: 7,432,621 km (0.106 R)
• M11: 11,324,260 km (0.118 R)
• M12: 13,370,160 km (0.085 R)
• M13: 14,334,917 km (0.119 R)
• M14: 15,837,478 km (0.112 R)
• M15: 16,339,678 km (0.101 R)
• M16: 17,442,513 km (0.103 R)
• M17: 21,199,963 km (0.103 R)
• M18: 22,120,140 km (0.06 R)
• M19: 23,307,498 km (0.075 R)
• M20: 24,620,518 km (0.069 R)
• M21: 32,233,853 km (0.107 R)
• M22: 34,278,407 km (0.081 R)
• M23: 34,697,431 km (0.067 R)
• M24: 35,975,146 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 904.9

Radius: 5.2

Gravity: 33.47 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.93 AU - 8.43 AU

Year: 15601 Days

Day: 17.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,905,497 km

• M1: 64,626 km (0.12 R)
• M2: 327,919 km (0.089 R)
• M3: 596,896 km (0.055 R)
• M4: 970,292 km (0.1 R)
• M5: 1,455,886 km (0.086 R)
• M6: 2,089,882 km (0.092 R)
• M7: 2,536,133 km (0.104 R)
• M8: 3,390,037 km (0.067 R)
• M9: 4,554,507 km (0.11 R)
• M10: 6,548,647 km (0.11 R)
• M11: 7,125,646 km (0.1 R)
• M12: 7,832,795 km (0.103 R)
• M13: 8,900,026 km (0.094 R)
• M14: 10,003,161 km (0.087 R)
• M15: 12,745,589 km (0.114 R)
• M16: 13,713,487 km (0.077 R)
• M17: 16,346,111 km (0.117 R)
• M18: 26,118,442 km (0.111 R)
• M19: 27,674,559 km (0.103 R)
• M20: 27,901,798 km (0.099 R)
• M21: 31,461,479 km (0.092 R)
• M22: 32,712,267 km (0.112 R)
• M23: 33,349,853 km (0.054 R)
• M24: 41,958,612 km (0.048 R)
• M25: 44,088,288 km (0.103 R)
• M26: 48,562,012 km (0.093 R)
• M27: 50,908,305 km (0.084 R)
• M28: 54,925,157 km (0.089 R)
• M29: 56,188,212 km (0.116 R)
• M30: 58,026,321 km (0.096 R)
• M31: 62,210,125 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 385.6

Radius: 5.2

Gravity: 14.26 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 8.42 AU - 12.14 AU

Year: 21980 Days

Day: 15.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 66,905,497 km

• M1: 64,776 km (0.114 R)
• M2: 313,557 km (0.111 R)
• M3: 1,409,810 km (0.102 R)
• M4: 1,924,128 km (0.118 R)
• M5: 2,466,719 km (0.102 R)
• M6: 3,288,311 km (0.089 R)
• M7: 3,761,339 km (0.079 R)
• M8: 5,268,538 km (0.116 R)
• M9: 5,719,725 km (0.096 R)
• M10: 6,319,463 km (0.077 R)
• M11: 9,517,417 km (0.112 R)
• M12: 10,242,817 km (0.112 R)
• M13: 12,971,631 km (0.114 R)
• M14: 13,241,506 km (0.106 R)
• M15: 14,719,982 km (0.097 R)
• M16: 15,688,329 km (0.107 R)
• M17: 17,751,433 km (0.105 R)
• M18: 19,456,400 km (0.1 R)
• M19: 22,600,349 km (0.099 R)
• M20: 26,066,831 km (0.069 R)
• M21: 27,702,982 km (0.119 R)
• M22: 30,106,571 km (0.087 R)
• M23: 30,818,059 km (0.119 R)
• M24: 34,673,645 km (0.069 R)
• M25: 38,283,441 km (0.064 R)
• M26: 45,614,784 km (0.078 R)
• M27: 47,823,597 km (0.078 R)
• M28: 50,933,737 km (0.059 R)
• M29: 51,943,223 km (0.088 R)
• M30: 60,691,856 km (0.112 R)
• M31: 63,942,618 km (0.112 R)
• M32: 66,305,666 km (0.054 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 16,606 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit