🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.5

Radius: 14.5

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 1.14 AU - 1.86 AU

Year: 1186 Days

Day: 8.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,215,316 km

• M1: 180,415 km (0.116 R)
• M2: 637,736 km (0.094 R)
• M3: 1,219,372 km (0.113 R)
• M4: 1,793,978 km (0.115 R)
• M5: 2,405,534 km (0.097 R)
• M6: 3,372,684 km (0.089 R)
• M7: 4,887,512 km (0.105 R)
• M8: 5,385,823 km (0.11 R)
• M9: 6,050,935 km (0.113 R)
• M10: 6,674,459 km (0.111 R)
• M11: 7,188,926 km (0.116 R)
• M12: 7,969,827 km (0.103 R)
• M13: 8,437,021 km (0.067 R)
• M14: 8,922,615 km (0.1 R)
• M15: 9,794,322 km (0.079 R)
• M16: 10,590,632 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.9

Radius: 10.3

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.82 AU - 2.18 AU

Year: 1826 Days

Day: 13.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,215,316 km

• M1: 128,056 km (0.097 R)
• M2: 470,485 km (0.115 R)
• M3: 921,074 km (0.119 R)
• M4: 1,919,789 km (0.102 R)
• M5: 2,490,805 km (0.082 R)
• M6: 2,867,642 km (0.076 R)
• M7: 4,151,191 km (0.12 R)
• M8: 4,720,262 km (0.031 R)
• M9: 5,498,919 km (0.107 R)
• M10: 6,675,057 km (0.109 R)
• M11: 8,219,954 km (0.119 R)
• M12: 8,811,763 km (0.082 R)
• M13: 9,431,847 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.9

Radius: 11.9

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.87 AU - 3.01 AU

Year: 2461 Days

Day: 9.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,215,316 km

• M1: 148,401 km (0.101 R)
• M2: 655,687 km (0.097 R)
• M3: 1,966,913 km (0.105 R)
• M4: 2,656,559 km (0.078 R)
• M5: 3,174,168 km (0.025 R)
• M6: 3,789,464 km (0.118 R)
• M7: 4,175,875 km (0.091 R)
• M8: 7,175,462 km (0.058 R)
• M9: 7,821,425 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.4

Radius: 12

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.74 AU - 3.38 AU

Year: 3456 Days

Day: 12.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,215,316 km

• M1: 149,299 km (0.093 R)
• M2: 566,677 km (0.118 R)
• M3: 1,024,596 km (0.098 R)
• M4: 1,443,320 km (0.116 R)
• M5: 2,115,463 km (0.036 R)
• M6: 2,780,276 km (0.111 R)
• M7: 3,344,709 km (0.096 R)
• M8: 4,167,198 km (0.076 R)
• M9: 4,772,172 km (0.115 R)
• M10: 5,866,929 km (0.115 R)
• M11: 6,515,586 km (0.106 R)
• M12: 7,702,794 km (0.103 R)
• M13: 8,616,089 km (0.098 R)
• M14: 11,666,390 km (0.068 R)
• M15: 12,870,204 km (0.1 R)
• M16: 13,872,809 km (0.093 R)
• M17: 14,345,538 km (0.112 R)
• M18: 16,188,584 km (0.055 R)
• M19: 18,184,519 km (0.109 R)
• M20: 19,212,705 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.9

Radius: 13.5

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.11 AU - 3.17 AU

Year: 3593 Days

Day: 10.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,215,316 km

• M1: 167,998 km (0.048 R)
• M2: 704,008 km (0.077 R)
• M3: 2,665,984 km (0.099 R)
• M4: 4,052,906 km (0.101 R)
• M5: 4,509,179 km (0.083 R)
• M6: 5,307,284 km (0.073 R)
• M7: 7,234,104 km (0.067 R)
• M8: 8,736,216 km (0.071 R)
• M9: 10,007,948 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.1

Radius: 9.5

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.41 AU - 6.19 AU

Year: 7878 Days

Day: 14.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,215,316 km

• M1: 125,662 km (0.108 R)
• M2: 497,413 km (0.09 R)
• M3: 1,302,399 km (0.077 R)
• M4: 2,473,601 km (0.079 R)
• M5: 3,134,375 km (0.04 R)
• M6: 8,138,274 km (0.115 R)
• M7: 9,127,415 km (0.114 R)
• M8: 9,552,722 km (0.101 R)
• M9: 10,235,935 km (0.117 R)
• M10: 13,103,128 km (0.105 R)
• M11: 14,720,281 km (0.066 R)
• M12: 15,686,234 km (0.113 R)
• M13: 20,430,731 km (0.113 R)
• M14: 23,449,017 km (0.107 R)
• M15: 24,914,329 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 266.3

Radius: 4.5

Gravity: 13.15 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 6.33 AU - 8.09 AU

Year: 12500 Days

Day: 15.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 51,215,316 km

• M1: 58,194 km (0.102 R)
• M2: 696,976 km (0.115 R)
• M3: 1,172,548 km (0.083 R)
• M4: 2,059,813 km (0.031 R)
• M5: 2,297,973 km (0.105 R)
• M6: 2,592,531 km (0.117 R)
• M7: 2,789,103 km (0.07 R)
• M8: 3,725,436 km (0.104 R)
• M9: 5,062,841 km (0.106 R)
• M10: 5,465,259 km (0.115 R)
• M11: 5,989,450 km (0.103 R)
• M12: 10,435,947 km (0.054 R)
• M13: 10,732,899 km (0.088 R)
• M14: 11,552,546 km (0.12 R)
• M15: 12,303,228 km (0.067 R)
• M16: 13,143,071 km (0.1 R)
• M17: 13,901,382 km (0.112 R)
• M18: 14,261,015 km (0.063 R)
• M19: 19,516,688 km (0.086 R)
• M20: 20,195,413 km (0.086 R)
• M21: 23,657,108 km (0.084 R)
• M22: 24,602,118 km (0.099 R)
• M23: 28,155,815 km (0.068 R)
• M24: 30,104,178 km (0.116 R)
• M25: 33,192,626 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.4

Radius: 7.7

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 8.72 AU - 9.12 AU

Year: 17201 Days

Day: 18 Hours

Environment

Temp: -220 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,215,316 km

• M1: 96,939 km (0.102 R)
• M2: 388,954 km (0.102 R)
• M3: 776,263 km (0.055 R)
• M4: 1,025,643 km (0.118 R)
• M5: 2,000,423 km (0.107 R)
• M6: 2,967,723 km (0.105 R)
• M7: 3,491,614 km (0.107 R)
• M8: 3,775,850 km (0.094 R)
• M9: 5,136,742 km (0.086 R)
• M10: 6,109,876 km (0.117 R)
• M11: 7,159,904 km (0.107 R)
• M12: 7,492,909 km (0.114 R)
• M13: 8,370,898 km (0.096 R)
• M14: 11,642,005 km (0.087 R)
• M15: 12,576,095 km (0.116 R)
• M16: 13,371,207 km (0.06 R)
• M17: 13,685,812 km (0.043 R)
• M18: 16,027,916 km (0.105 R)
• M19: 21,575,603 km (0.103 R)
• M20: 21,834,856 km (0.115 R)
• M21: 22,183,569 km (0.118 R)
• M22: 22,447,609 km (0.111 R)
• M23: 22,892,214 km (0.04 R)
• M24: 23,615,819 km (0.106 R)
• M25: 29,749,930 km (0.057 R)
• M26: 38,491,083 km (0.106 R)
• M27: 38,872,558 km (0.052 R)
• M28: 40,949,425 km (0.071 R)
• M29: 46,319,690 km (0.111 R)
• M30: 47,476,380 km (0.103 R)
• M31: 48,061,906 km (0.042 R)
• M32: 50,756,613 km (0.087 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 10,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit