🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.5

Radius: 12.2

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.7 AU - 0.88 AU

Year: 494 Days

Day: 13.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,808,255 km

• M1: 151,692 km (0.115 R)
• M2: 563,834 km (0.113 R)
• M3: 984,653 km (0.057 R)
• M4: 1,542,653 km (0.085 R)
• M5: 2,202,230 km (0.098 R)
• M6: 2,661,795 km (0.114 R)
• M7: 3,241,487 km (0.06 R)
• M8: 3,640,913 km (0.112 R)
• M9: 4,455,324 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.2

Radius: 11.1

Gravity: 7.35 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.53 AU - 1.89 AU

Year: 1572 Days

Day: 6.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,808,255 km

• M1: 138,079 km (0.116 R)
• M2: 617,091 km (0.1 R)
• M3: 1,328,279 km (0.098 R)
• M4: 1,684,322 km (0.045 R)
• M5: 2,116,660 km (0.082 R)
• M6: 2,719,390 km (0.104 R)
• M7: 3,417,264 km (0.096 R)
• M8: 4,249,926 km (0.059 R)
• M9: 4,622,873 km (0.089 R)
• M10: 6,517,231 km (0.084 R)
• M11: 6,881,652 km (0.111 R)
• M12: 7,680,205 km (0.036 R)
• M13: 8,693,880 km (0.081 R)
• M14: 9,297,956 km (0.079 R)
• M15: 9,760,812 km (0.102 R)
• M16: 10,169,813 km (0.103 R)
• M17: 11,730,119 km (0.112 R)
• M18: 12,627,407 km (0.09 R)
• M19: 13,865,927 km (0.108 R)
• M20: 14,339,704 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 127.3

Radius: 8

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.47 AU - 1.97 AU

Year: 1586 Days

Day: 9.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,808,255 km

• M1: 99,632 km (0.116 R)
• M2: 356,342 km (0.084 R)
• M3: 681,568 km (0.068 R)
• M4: 2,183,830 km (0.097 R)
• M5: 3,140,359 km (0.076 R)
• M6: 3,451,522 km (0.1 R)
• M7: 3,927,692 km (0.036 R)
• M8: 4,383,666 km (0.053 R)
• M9: 6,181,833 km (0.093 R)
• M10: 6,714,700 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.2

Radius: 9.3

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.82 AU - 3.96 AU

Year: 4387 Days

Day: 7.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,808,255 km

• M1: 115,639 km (0.096 R)
• M2: 591,809 km (0.077 R)
• M3: 921,672 km (0.101 R)
• M4: 3,808,911 km (0.041 R)
• M5: 4,673,886 km (0.078 R)
• M6: 5,176,535 km (0.09 R)
• M7: 5,664,523 km (0.105 R)
• M8: 6,344,296 km (0.098 R)
• M9: 6,647,830 km (0.081 R)
• M10: 7,803,324 km (0.06 R)
• M11: 8,611,302 km (0.1 R)
• M12: 9,122,329 km (0.031 R)
• M13: 9,725,657 km (0.077 R)
• M14: 10,894,315 km (0.047 R)
• M15: 11,861,466 km (0.082 R)
• M16: 12,196,266 km (0.113 R)
• M17: 16,052,151 km (0.092 R)
• M18: 16,513,810 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.6

Radius: 10.2

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.63 AU - 3.81 AU

Year: 5043 Days

Day: 9.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,808,255 km

• M1: 130,599 km (0.104 R)
• M2: 630,854 km (0.065 R)
• M3: 1,182,272 km (0.117 R)
• M4: 2,604,948 km (0.098 R)
• M5: 3,154,570 km (0.12 R)
• M6: 4,669,099 km (0.072 R)
• M7: 5,306,536 km (0.107 R)
• M8: 11,550,751 km (0.112 R)
• M9: 14,752,295 km (0.117 R)
• M10: 15,576,579 km (0.106 R)
• M11: 17,446,104 km (0.111 R)
• M12: 27,732,004 km (0.089 R)
• M13: 28,175,861 km (0.092 R)
• M14: 28,714,713 km (0.083 R)
• M15: 31,129,372 km (0.027 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.7

Radius: 8.6

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.53 AU - 4.21 AU

Year: 5351 Days

Day: 8.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,808,255 km

• M1: 106,962 km (0.071 R)
• M2: 518,656 km (0.114 R)
• M3: 1,060,799 km (0.088 R)
• M4: 2,107,984 km (0.054 R)
• M5: 2,514,591 km (0.107 R)
• M6: 2,783,268 km (0.112 R)
• M7: 3,071,095 km (0.1 R)
• M8: 3,378,967 km (0.052 R)
• M9: 4,081,180 km (0.105 R)
• M10: 6,505,862 km (0.091 R)
• M11: 6,946,577 km (0.113 R)
• M12: 7,775,050 km (0.038 R)
• M13: 9,244,101 km (0.097 R)
• M14: 10,472,449 km (0.089 R)
• M15: 10,936,502 km (0.085 R)
• M16: 13,574,212 km (0.119 R)
• M17: 14,014,478 km (0.058 R)
• M18: 14,521,166 km (0.054 R)
• M19: 15,811,298 km (0.077 R)
• M20: 16,859,231 km (0.118 R)
• M21: 17,756,519 km (0.04 R)
• M22: 18,084,587 km (0.119 R)
• M23: 19,926,436 km (0.047 R)
• M24: 20,352,192 km (0.107 R)
• M25: 21,442,910 km (0.033 R)
• M26: 23,034,931 km (0.113 R)
• M27: 24,541,830 km (0.057 R)
• M28: 25,031,165 km (0.113 R)
• M29: 32,288,008 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 44.4

Radius: 4.8

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.14 AU - 8.18 AU

Year: 13467 Days

Day: 17.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,808,255 km

• M1: 217,814 km (0.085 R)
• M2: 784,790 km (0.071 R)
• M3: 1,098,647 km (0.119 R)
• M4: 3,371,936 km (0.119 R)
• M5: 4,172,883 km (0.041 R)
• M6: 5,043,243 km (0.067 R)
• M7: 5,297,859 km (0.11 R)
• M8: 6,462,179 km (0.098 R)
• M9: 6,793,239 km (0.108 R)
• M10: 8,911,396 km (0.11 R)
• M11: 11,174,363 km (0.112 R)
• M12: 14,801,513 km (0.079 R)
• M13: 17,593,158 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 234.6

Radius: 4.2

Gravity: 13.3 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 7.16 AU - 10.28 AU

Year: 18100 Days

Day: 23.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 49,808,255 km

• M1: 54,304 km (0.103 R)
• M2: 223,499 km (0.111 R)
• M3: 421,118 km (0.096 R)
• M4: 698,024 km (0.1 R)
• M5: 1,667,418 km (0.073 R)
• M6: 1,889,571 km (0.04 R)
• M7: 2,451,909 km (0.065 R)
• M8: 2,981,037 km (0.119 R)
• M9: 3,634,181 km (0.119 R)
• M10: 3,871,742 km (0.12 R)
• M11: 4,895,291 km (0.069 R)
• M12: 5,087,225 km (0.094 R)
• M13: 5,317,606 km (0.113 R)
• M14: 6,927,877 km (0.116 R)
• M15: 7,843,566 km (0.059 R)
• M16: 9,026,287 km (0.072 R)
• M17: 9,364,079 km (0.115 R)
• M18: 10,585,994 km (0.112 R)
• M19: 12,732,125 km (0.052 R)
• M20: 16,611,647 km (0.091 R)
• M21: 19,647,736 km (0.114 R)
• M22: 20,460,800 km (0.101 R)
• M23: 21,211,482 km (0.063 R)
• M24: 23,754,945 km (0.112 R)
• M25: 27,687,275 km (0.076 R)
• M26: 28,296,886 km (0.091 R)
• M27: 29,753,969 km (0.106 R)
• M28: 34,424,116 km (0.102 R)
• M29: 35,962,879 km (0.075 R)
• M30: 38,043,487 km (0.072 R)
• M31: 38,418,828 km (0.118 R)
• M32: 44,210,958 km (0.105 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: 161 - 18,854 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit