🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.1

Radius: 14.5

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.84 AU - 1.36 AU

Year: 796 Days

Day: 5.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 15,777,204 km

• M1: 180,265 km (0.084 R)
• M2: 701,614 km (0.115 R)
• M3: 2,205,821 km (0.118 R)
• M4: 2,676,605 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.8

Radius: 11.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 4.43 AU - 5.27 AU

Year: 7373 Days

Day: 7 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 15,777,204 km

• M1: 146,756 km (0.118 R)
• M2: 563,535 km (0.065 R)
• M3: 971,937 km (0.095 R)
• M4: 2,611,380 km (0.049 R)
• M5: 3,050,151 km (0.104 R)
• M6: 3,912,583 km (0.06 R)
• M7: 4,557,948 km (0.108 R)
• M8: 5,149,159 km (0.112 R)
• M9: 6,514,090 km (0.116 R)
• M10: 8,413,235 km (0.116 R)
• M11: 10,616,512 km (0.055 R)
• M12: 11,317,079 km (0.082 R)
• M13: 12,447,740 km (0.101 R)
• M14: 12,856,142 km (0.076 R)
• M15: 13,320,643 km (0.051 R)
• M16: 13,989,495 km (0.099 R)
• M17: 14,431,258 km (0.114 R)
• M18: 15,654,968 km (0.076 R)
• M19: 19,680,198 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.1

Radius: 9.1

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.58 AU - 5.26 AU

Year: 7533 Days

Day: 12.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 15,777,204 km

• M1: 115,190 km (0.116 R)
• M2: 466,446 km (0.118 R)
• M3: 1,300,005 km (0.097 R)
• M4: 1,594,414 km (0.117 R)
• M5: 1,903,932 km (0.08 R)
• M6: 2,480,333 km (0.04 R)
• M7: 6,173,755 km (0.081 R)
• M8: 6,587,692 km (0.117 R)
• M9: 7,509,514 km (0.106 R)
• M10: 9,836,958 km (0.106 R)
• M11: 10,306,695 km (0.091 R)
• M12: 11,189,771 km (0.108 R)
• M13: 12,122,364 km (0.102 R)
• M14: 14,024,202 km (0.118 R)
• M15: 14,862,249 km (0.072 R)
• M16: 15,293,540 km (0.094 R)
• M17: 17,103,076 km (0.112 R)
• M18: 17,576,852 km (0.12 R)
• M19: 18,409,364 km (0.09 R)
• M20: 21,065,026 km (0.057 R)
• M21: 22,403,628 km (0.117 R)
• M22: 22,807,991 km (0.083 R)
• M23: 23,631,078 km (0.106 R)
• M24: 24,134,475 km (0.104 R)
• M25: 29,957,273 km (0.081 R)
• M26: 31,648,028 km (0.104 R)
• M27: 34,035,460 km (0.084 R)
• M28: 34,462,562 km (0.064 R)
• M29: 36,096,321 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 334.3

Radius: 14.1

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.27 AU - 5.61 AU

Year: 7579 Days

Day: 11.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 15,777,204 km

• M1: 176,974 km (0.099 R)
• M2: 968,048 km (0.047 R)
• M3: 1,478,775 km (0.065 R)
• M4: 2,142,092 km (0.072 R)
• M5: 2,690,368 km (0.095 R)
• M6: 3,152,775 km (0.11 R)
• M7: 5,308,929 km (0.096 R)
• M8: 6,614,769 km (0.119 R)
• M9: 7,360,963 km (0.105 R)
• M10: 8,429,840 km (0.042 R)
• M11: 10,114,312 km (0.059 R)
• M12: 13,022,345 km (0.103 R)
• M13: 14,696,046 km (0.116 R)
• M14: 19,604,651 km (0.115 R)
• M15: 21,651,898 km (0.117 R)
• M16: 22,916,299 km (0.105 R)
• M17: 23,916,062 km (0.093 R)
• M18: 24,625,156 km (0.055 R)
• M19: 30,352,062 km (0.105 R)
• M20: 30,997,277 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.7

Radius: 11.5

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.89 AU - 6.03 AU

Year: 7625 Days

Day: 9.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 15,777,204 km

• M1: 143,016 km (0.111 R)
• M2: 557,402 km (0.116 R)
• M3: 1,074,113 km (0.081 R)
• M4: 1,547,889 km (0.077 R)
• M5: 1,934,450 km (0.068 R)
• M6: 2,589,838 km (0.111 R)
• M7: 3,342,316 km (0.076 R)
• M8: 3,870,546 km (0.11 R)
• M9: 4,914,440 km (0.074 R)
• M10: 6,033,581 km (0.06 R)
• M11: 7,354,531 km (0.092 R)
• M12: 8,948,795 km (0.095 R)
• M13: 9,497,071 km (0.089 R)
• M14: 10,361,448 km (0.079 R)
• M15: 12,081,524 km (0.088 R)
• M16: 12,525,680 km (0.073 R)
• M17: 13,684,016 km (0.097 R)
• M18: 15,166,681 km (0.065 R)
• M19: 15,553,541 km (0.087 R)
• M20: 17,306,678 km (0.076 R)
• M21: 18,964,372 km (0.046 R)
• M22: 20,962,850 km (0.119 R)
• M23: 21,523,992 km (0.087 R)
• M24: 22,343,190 km (0.103 R)
• M25: 23,783,219 km (0.047 R)
• M26: 27,224,419 km (0.047 R)
• M27: 27,700,589 km (0.101 R)
• M28: 37,252,712 km (0.107 R)
• M29: 38,912,351 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.3

Radius: 8.1

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.78 AU - 5.26 AU

Year: 7764 Days

Day: 7.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 15,777,204 km

• M1: 101,577 km (0.036 R)
• M2: 869,313 km (0.119 R)
• M3: 1,249,441 km (0.12 R)
• M4: 1,514,529 km (0.111 R)
• M5: 2,268,801 km (0.042 R)
• M6: 2,581,311 km (0.06 R)
• M7: 3,074,835 km (0.118 R)
• M8: 3,784,228 km (0.097 R)
• M9: 4,805,981 km (0.057 R)
• M10: 5,729,598 km (0.101 R)
• M11: 7,777,444 km (0.096 R)
• M12: 8,453,177 km (0.108 R)
• M13: 9,835,910 km (0.09 R)
• M14: 10,671,265 km (0.112 R)
• M15: 13,250,631 km (0.078 R)
• M16: 16,580,680 km (0.118 R)
• M17: 18,210,848 km (0.112 R)
• M18: 20,290,857 km (0.119 R)
• M19: 22,673,652 km (0.046 R)
• M20: 26,463,714 km (0.106 R)
• M21: 28,683,148 km (0.1 R)
• M22: 29,748,285 km (0.088 R)
• M23: 30,018,608 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.9

Radius: 4.3

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 5.99 AU - 6.17 AU

Year: 10348 Days

Day: 21.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 15,777,204 km

• M1: 125,961 km (0.079 R)
• M2: 352,752 km (0.069 R)
• M3: 627,114 km (0.04 R)
• M4: 889,060 km (0.055 R)
• M5: 1,114,355 km (0.111 R)
• M6: 1,488,349 km (0.107 R)
• M7: 2,384,291 km (0.056 R)
• M8: 2,562,612 km (0.047 R)
• M9: 2,697,848 km (0.069 R)
• M10: 4,351,054 km (0.105 R)
• M11: 4,568,719 km (0.098 R)
• M12: 5,238,618 km (0.101 R)
• M13: 6,834,828 km (0.098 R)
• M14: 9,153,744 km (0.109 R)
• M15: 9,391,156 km (0.108 R)
• M16: 9,673,298 km (0.061 R)
• M17: 10,424,728 km (0.11 R)
• M18: 11,304,513 km (0.116 R)
• M19: 13,666,962 km (0.109 R)
• M20: 22,116,400 km (0.044 R)
• M21: 24,917,171 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.6

Radius: 3.6

Gravity: 51.2 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 6.29 AU - 6.29 AU

Year: 10889 Days

Day: 24.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 15,777,204 km

• M1: 44,879 km (0.106 R)
• M2: 191,485 km (0.069 R)
• M3: 347,067 km (0.037 R)
• M4: 631,453 km (0.065 R)
• M5: 1,031,926 km (0.032 R)
• M6: 1,218,026 km (0.045 R)
• M7: 2,250,850 km (0.102 R)
• M8: 2,564,706 km (0.085 R)
• M9: 3,230,566 km (0.09 R)
• M10: 3,351,890 km (0.077 R)
• M11: 3,813,998 km (0.119 R)
• M12: 4,060,236 km (0.036 R)
• M13: 4,259,201 km (0.118 R)
• M14: 4,554,358 km (0.06 R)
• M15: 5,087,524 km (0.072 R)
• M16: 5,731,244 km (0.1 R)
• M17: 6,201,879 km (0.1 R)
• M18: 6,975,599 km (0.081 R)
• M19: 8,434,777 km (0.103 R)
• M20: 10,609,481 km (0.109 R)
• M21: 12,407,498 km (0.116 R)
• M22: 12,826,073 km (0.032 R)
• M23: 14,203,420 km (0.112 R)
• M24: 14,529,544 km (0.098 R)
• M25: 15,538,282 km (0.063 R)
• M26: 22,941,881 km (0.068 R)
• M27: 23,300,616 km (0.093 R)
• M28: 25,723,803 km (0.094 R)
• M29: 26,896,800 km (0.047 R)
• M30: 28,002,926 km (0.099 R)
• M31: 31,063,848 km (0.104 R)
• M32: 34,457,177 km (0.053 R)
• M33: 37,220,100 km (0.075 R)
• M34: 38,466,100 km (0.07 R)
• M35: 40,127,086 km (0.06 R)
• M36: 43,045,890 km (0.039 R)
• M37: 43,591,324 km (0.072 R)
• M38: 45,961,103 km (0.106 R)
• M39: 46,530,922 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17.2

Radius: 6.4

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 6.6 AU - 6.76 AU

Year: 11917 Days

Day: 18.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 15,777,204 km

• M1: 79,885 km (0.105 R)
• M2: 470,485 km (0.113 R)
• M3: 9,218,520 km (0.095 R)
• M4: 9,890,962 km (0.118 R)
• M5: 12,952,034 km (0.043 R)
• M6: 13,838,102 km (0.101 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 20,329 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit