🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.2

Radius: 12.1

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.61 AU - 1.01 AU

Year: 494 Days

Day: 13.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 62,709,287 km

• M1: 150,645 km (0.117 R)
• M2: 564,283 km (0.072 R)
• M3: 1,222,813 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.3

Radius: 15

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.97 AU - 1.11 AU

Year: 719 Days

Day: 11 Hours

Environment

Temp: -180 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,709,287 km

• M1: 189,241 km (0.085 R)
• M2: 675,584 km (0.073 R)
• M3: 1,165,966 km (0.062 R)
• M4: 1,653,954 km (0.049 R)
• M5: 2,243,968 km (0.093 R)
• M6: 2,783,119 km (0.076 R)
• M7: 4,260,248 km (0.095 R)
• M8: 5,599,747 km (0.091 R)
• M9: 7,098,718 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.9

Radius: 9.8

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.15 AU - 1.79 AU

Year: 1209 Days

Day: 14.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,709,287 km

• M1: 121,922 km (0.116 R)
• M2: 451,486 km (0.078 R)
• M3: 761,004 km (0.071 R)
• M4: 1,478,177 km (0.106 R)
• M5: 1,916,050 km (0.063 R)
• M6: 2,483,175 km (0.108 R)
• M7: 3,906,898 km (0.119 R)
• M8: 5,871,268 km (0.049 R)
• M9: 6,408,025 km (0.115 R)
• M10: 6,798,625 km (0.09 R)
• M11: 7,204,933 km (0.041 R)
• M12: 8,292,210 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.9

Radius: 14.6

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.31 AU - 2.15 AU

Year: 1543 Days

Day: 15 Hours

Environment

Temp: -204 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,709,287 km

• M1: 182,061 km (0.094 R)
• M2: 644,468 km (0.082 R)
• M3: 1,326,185 km (0.101 R)
• M4: 2,002,667 km (0.106 R)
• M5: 3,093,235 km (0.051 R)
• M6: 4,264,138 km (0.045 R)
• M7: 4,788,329 km (0.11 R)
• M8: 5,487,848 km (0.096 R)
• M9: 7,607,501 km (0.094 R)
• M10: 8,836,447 km (0.031 R)
• M11: 11,501,383 km (0.058 R)
• M12: 12,330,156 km (0.043 R)
• M13: 13,198,571 km (0.044 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631

Radius: 10

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.65 AU - 2.21 AU

Year: 1819 Days

Day: 11.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,709,287 km

• M1: 124,914 km (0.084 R)
• M2: 541,395 km (0.107 R)
• M3: 971,638 km (0.068 R)
• M4: 1,636,451 km (0.118 R)
• M5: 1,969,007 km (0.064 R)
• M6: 2,385,039 km (0.097 R)
• M7: 2,759,632 km (0.12 R)
• M8: 3,444,641 km (0.063 R)
• M9: 4,201,456 km (0.094 R)
• M10: 5,260,310 km (0.109 R)
• M11: 6,437,795 km (0.113 R)
• M12: 7,388,489 km (0.063 R)
• M13: 8,043,429 km (0.066 R)
• M14: 8,370,001 km (0.118 R)
• M15: 9,403,423 km (0.115 R)
• M16: 12,181,755 km (0.102 R)
• M17: 12,812,758 km (0.074 R)
• M18: 13,382,577 km (0.094 R)
• M19: 13,926,814 km (0.095 R)
• M20: 14,485,711 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.7

Radius: 10.2

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.53 AU - 4.11 AU

Year: 5064 Days

Day: 11 Hours

Environment

Temp: -212 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,709,287 km

• M1: 126,859 km (0.06 R)
• M2: 469,737 km (0.06 R)
• M3: 1,197,232 km (0.042 R)
• M4: 1,898,846 km (0.102 R)
• M5: 2,824,707 km (0.079 R)
• M6: 3,166,089 km (0.096 R)
• M7: 4,046,473 km (0.107 R)
• M8: 5,881,889 km (0.065 R)
• M9: 6,416,402 km (0.056 R)
• M10: 7,010,755 km (0.12 R)
• M11: 8,062,128 km (0.12 R)
• M12: 11,338,322 km (0.045 R)
• M13: 12,046,219 km (0.114 R)
• M14: 15,601,412 km (0.094 R)
• M15: 16,526,825 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.5

Radius: 10.8

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 4.73 AU - 5.69 AU

Year: 8066 Days

Day: 13.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,709,287 km

• M1: 134,339 km (0.105 R)
• M2: 506,389 km (0.116 R)
• M3: 1,122,134 km (0.104 R)
• M4: 1,466,957 km (0.053 R)
• M5: 2,411,368 km (0.09 R)
• M6: 2,816,330 km (0.071 R)
• M7: 3,386,597 km (0.076 R)
• M8: 4,032,560 km (0.083 R)
• M9: 4,861,781 km (0.05 R)
• M10: 5,289,631 km (0.101 R)
• M11: 5,684,719 km (0.092 R)
• M12: 9,306,932 km (0.056 R)
• M13: 10,661,691 km (0.056 R)
• M14: 11,903,503 km (0.118 R)
• M15: 12,338,234 km (0.097 R)
• M16: 12,683,506 km (0.078 R)
• M17: 15,060,616 km (0.053 R)
• M18: 15,398,408 km (0.115 R)
• M19: 16,265,627 km (0.119 R)
• M20: 17,043,087 km (0.103 R)
• M21: 23,345,496 km (0.108 R)
• M22: 25,750,132 km (0.118 R)
• M23: 28,315,436 km (0.088 R)
• M24: 28,744,632 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629

Radius: 14.5

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.4 AU - 6.36 AU

Year: 8464 Days

Day: 8.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,709,287 km

• M1: 180,415 km (0.068 R)
• M2: 718,967 km (0.065 R)
• M3: 1,289,833 km (0.064 R)
• M4: 1,884,784 km (0.1 R)
• M5: 2,530,598 km (0.089 R)
• M6: 3,041,026 km (0.085 R)
• M7: 3,764,481 km (0.085 R)
• M8: 4,462,205 km (0.085 R)
• M9: 5,816,814 km (0.077 R)
• M10: 7,469,422 km (0.085 R)
• M11: 8,362,820 km (0.032 R)
• M12: 9,509,039 km (0.106 R)
• M13: 10,411,264 km (0.103 R)
• M14: 11,421,947 km (0.119 R)
• M15: 16,194,568 km (0.108 R)
• M16: 18,185,716 km (0.07 R)
• M17: 22,898,497 km (0.072 R)
• M18: 27,986,321 km (0.056 R)
• M19: 31,872,574 km (0.113 R)
• M20: 34,985,856 km (0.055 R)
• M21: 38,532,522 km (0.073 R)
• M22: 39,007,046 km (0.029 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426.8

Radius: 5.2

Gravity: 15.78 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 7.44 AU - 10.98 AU

Year: 18957 Days

Day: 18.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,709,287 km

• M1: 137,181 km (0.109 R)
• M2: 474,375 km (0.112 R)
• M3: 816,954 km (0.094 R)
• M4: 1,008,738 km (0.07 R)
• M5: 1,859,651 km (0.108 R)
• M6: 2,796,882 km (0.092 R)
• M7: 3,110,888 km (0.065 R)
• M8: 4,772,471 km (0.106 R)
• M9: 6,992,653 km (0.088 R)
• M10: 7,570,999 km (0.114 R)
• M11: 11,788,611 km (0.074 R)
• M12: 12,161,409 km (0.098 R)
• M13: 26,598,651 km (0.111 R)
• M14: 36,929,730 km (0.089 R)
• M15: 49,164,143 km (0.104 R)
• M16: 61,774,346 km (0.045 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 14,271 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit