🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.4

Radius: 10.5

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.87 AU - 1.43 AU

Year: 851 Days

Day: 8.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,762,752 km

• M1: 130,599 km (0.098 R)
• M2: 562,039 km (0.057 R)
• M3: 1,002,605 km (0.102 R)
• M4: 1,410,110 km (0.074 R)
• M5: 1,796,820 km (0.084 R)
• M6: 2,903,096 km (0.092 R)
• M7: 3,967,336 km (0.049 R)
• M8: 4,641,872 km (0.084 R)
• M9: 5,101,287 km (0.088 R)
• M10: 6,848,142 km (0.092 R)
• M11: 9,215,528 km (0.077 R)
• M12: 9,913,252 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978

Radius: 10.8

Gravity: 8.38 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.32 AU - 1.4 AU

Year: 1095 Days

Day: 12.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,762,752 km

• M1: 135,685 km (0.107 R)
• M2: 494,720 km (0.038 R)
• M3: 887,265 km (0.095 R)
• M4: 1,451,997 km (0.112 R)
• M5: 1,922,482 km (0.051 R)
• M6: 2,567,698 km (0.087 R)
• M7: 3,174,766 km (0.103 R)
• M8: 3,908,544 km (0.03 R)
• M9: 4,470,284 km (0.069 R)
• M10: 5,125,373 km (0.105 R)
• M11: 7,637,420 km (0.092 R)
• M12: 8,014,257 km (0.075 R)
• M13: 10,056,866 km (0.06 R)
• M14: 10,444,774 km (0.102 R)
• M15: 10,909,724 km (0.085 R)
• M16: 11,598,173 km (0.115 R)
• M17: 11,988,923 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.3

Radius: 12.7

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.35 AU - 1.91 AU

Year: 1436 Days

Day: 5.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,762,752 km

• M1: 157,975 km (0.063 R)
• M2: 663,317 km (0.067 R)
• M3: 1,063,641 km (0.116 R)
• M4: 1,722,919 km (0.115 R)
• M5: 2,169,020 km (0.095 R)
• M6: 2,655,362 km (0.048 R)
• M7: 3,074,535 km (0.084 R)
• M8: 3,630,142 km (0.08 R)
• M9: 4,534,760 km (0.112 R)
• M10: 5,099,193 km (0.105 R)
• M11: 6,392,616 km (0.083 R)
• M12: 6,885,242 km (0.047 R)
• M13: 7,581,470 km (0.094 R)
• M14: 8,378,977 km (0.076 R)
• M15: 8,998,910 km (0.079 R)
• M16: 9,618,844 km (0.098 R)
• M17: 10,079,007 km (0.104 R)
• M18: 11,311,095 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.4

Radius: 13.7

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.57 AU - 1.81 AU

Year: 1516 Days

Day: 9 Hours

Environment

Temp: -191 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,762,752 km

• M1: 172,187 km (0.061 R)
• M2: 603,627 km (0.072 R)
• M3: 1,244,355 km (0.111 R)
• M4: 1,863,989 km (0.107 R)
• M5: 2,419,147 km (0.093 R)
• M6: 2,861,807 km (0.098 R)
• M7: 3,607,553 km (0.111 R)
• M8: 4,529,375 km (0.081 R)
• M9: 5,028,583 km (0.096 R)
• M10: 5,545,294 km (0.113 R)
• M11: 6,077,264 km (0.075 R)
• M12: 6,708,118 km (0.067 R)
• M13: 7,784,176 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.1

Radius: 8.4

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.4 AU - 2.14 AU

Year: 1625 Days

Day: 10.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 116.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 23,762,752 km

• M1: 104,719 km (0.095 R)
• M2: 400,473 km (0.107 R)
• M3: 672,143 km (0.114 R)
• M4: 1,037,611 km (0.115 R)
• M5: 1,335,311 km (0.12 R)
• M6: 1,815,370 km (0.052 R)
• M7: 2,634,568 km (0.108 R)
• M8: 3,182,396 km (0.082 R)
• M9: 3,985,586 km (0.036 R)
• M10: 4,484,495 km (0.053 R)
• M11: 4,917,432 km (0.103 R)
• M12: 8,094,890 km (0.073 R)
• M13: 8,705,998 km (0.118 R)
• M14: 10,833,728 km (0.072 R)
• M15: 11,312,441 km (0.111 R)
• M16: 12,631,147 km (0.102 R)
• M17: 13,537,411 km (0.043 R)
• M18: 14,752,594 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 822.4

Radius: 8.8

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.13 AU - 2.79 AU

Year: 2663 Days

Day: 7.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 23,762,752 km

• M1: 109,506 km (0.056 R)
• M2: 414,237 km (0.066 R)
• M3: 956,080 km (0.085 R)
• M4: 1,233,584 km (0.079 R)
• M5: 1,970,653 km (0.1 R)
• M6: 2,357,812 km (0.116 R)
• M7: 3,008,413 km (0.08 R)
• M8: 3,542,926 km (0.044 R)
• M9: 3,953,872 km (0.102 R)
• M10: 4,484,047 km (0.106 R)
• M11: 6,419,095 km (0.113 R)
• M12: 6,881,951 km (0.101 R)
• M13: 7,274,346 km (0.112 R)
• M14: 7,649,687 km (0.091 R)
• M15: 8,070,955 km (0.082 R)
• M16: 8,645,111 km (0.03 R)
• M17: 9,538,510 km (0.109 R)
• M18: 11,424,490 km (0.113 R)
• M19: 12,104,861 km (0.09 R)
• M20: 15,970,620 km (0.04 R)
• M21: 18,439,134 km (0.049 R)
• M22: 20,280,684 km (0.094 R)
• M23: 20,588,706 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.5

Radius: 11.3

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.6 AU - 3.76 AU

Year: 3914 Days

Day: 10.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 23,762,752 km

• M1: 140,472 km (0.1 R)
• M2: 560,094 km (0.044 R)
• M3: 1,227,750 km (0.077 R)
• M4: 1,734,288 km (0.111 R)
• M5: 2,175,003 km (0.092 R)
• M6: 2,839,966 km (0.095 R)
• M7: 3,615,930 km (0.067 R)
• M8: 3,989,476 km (0.09 R)
• M9: 6,680,742 km (0.084 R)
• M10: 9,289,280 km (0.064 R)
• M11: 9,676,888 km (0.077 R)
• M12: 11,824,814 km (0.064 R)
• M13: 13,768,390 km (0.092 R)
• M14: 14,842,502 km (0.096 R)
• M15: 15,588,996 km (0.063 R)
• M16: 18,766,155 km (0.116 R)
• M17: 19,512,798 km (0.112 R)
• M18: 20,669,639 km (0.11 R)
• M19: 21,600,736 km (0.051 R)
• M20: 23,049,292 km (0.108 R)
• M21: 24,195,660 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.2

Radius: 11.2

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.77 AU - 4.81 AU

Year: 6133 Days

Day: 5.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 23,762,752 km

• M1: 139,276 km (0.117 R)
• M2: 514,467 km (0.101 R)
• M3: 927,208 km (0.099 R)
• M4: 2,244,716 km (0.074 R)
• M5: 2,609,136 km (0.025 R)
• M6: 3,339,623 km (0.06 R)
• M7: 4,825,579 km (0.057 R)
• M8: 5,802,004 km (0.077 R)
• M9: 6,469,510 km (0.071 R)
• M10: 9,455,034 km (0.029 R)
• M11: 10,125,233 km (0.108 R)
• M12: 10,490,551 km (0.112 R)
• M13: 13,783,050 km (0.069 R)
• M14: 17,084,974 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 26.7

Radius: 6.2

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 5.36 AU - 5.98 AU

Year: 9319 Days

Day: 19.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,762,752 km

• M1: 77,193 km (0.089 R)
• M2: 473,178 km (0.102 R)
• M3: 767,437 km (0.113 R)
• M4: 1,102,088 km (0.103 R)
• M5: 2,184,578 km (0.091 R)
• M6: 3,683,548 km (0.076 R)
• M7: 4,314,253 km (0.09 R)
• M8: 4,594,001 km (0.094 R)
• M9: 4,907,109 km (0.079 R)
• M10: 5,301,449 km (0.115 R)
• M11: 5,788,091 km (0.093 R)
• M12: 9,124,124 km (0.089 R)
• M13: 10,377,754 km (0.118 R)
• M14: 11,362,257 km (0.039 R)
• M15: 11,935,367 km (0.09 R)
• M16: 12,729,133 km (0.097 R)
• M17: 13,263,646 km (0.083 R)

Planet 10 - Ice Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.4

Radius: 3.6

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.35 AU - 6.31 AU

Year: 9717 Days

Day: 24.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 71.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 23,762,752 km

• M1: 45,179 km (0.117 R)
• M2: 516,861 km (0.074 R)
• M3: 793,168 km (0.093 R)
• M4: 920,625 km (0.045 R)
• M5: 1,551,330 km (0.081 R)
• M6: 2,293,635 km (0.088 R)
• M7: 2,538,825 km (0.064 R)
• M8: 3,045,214 km (0.032 R)
• M9: 3,172,522 km (0.085 R)
• M10: 3,516,148 km (0.103 R)
• M11: 4,414,035 km (0.09 R)
• M12: 4,601,032 km (0.062 R)
• M13: 4,744,646 km (0.076 R)
• M14: 8,391,094 km (0.099 R)
• M15: 8,678,023 km (0.08 R)
• M16: 10,830,736 km (0.075 R)
• M17: 11,300,174 km (0.101 R)
• M18: 12,509,972 km (0.074 R)
• M19: 14,610,626 km (0.078 R)
• M20: 15,078,119 km (0.1 R)
• M21: 15,988,572 km (0.115 R)
• M22: 16,596,687 km (0.082 R)
• M23: 17,976,877 km (0.069 R)
• M24: 18,273,829 km (0.081 R)
• M25: 22,436,389 km (0.047 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 19,381 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit