🌌 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: 737.2

Radius: 11.2

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.62 AU - 0.96 AU

Year: 476 Days

Day: 6.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,089,841 km

• M1: 139,425 km (0.087 R)
• M2: 546,481 km (0.044 R)
• M3: 957,426 km (0.099 R)
• M4: 1,462,768 km (0.087 R)
• M5: 1,818,063 km (0.09 R)
• M6: 2,259,077 km (0.081 R)
• M7: 2,616,018 km (0.049 R)
• M8: 2,966,376 km (0.105 R)
• M9: 3,384,502 km (0.116 R)
• M10: 3,841,973 km (0.045 R)
• M11: 4,913,542 km (0.066 R)
• M12: 5,778,517 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.7

Radius: 10.5

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.42 AU - 1.64 AU

Year: 1284 Days

Day: 9.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,089,841 km

• M1: 132,095 km (0.041 R)
• M2: 483,949 km (0.086 R)
• M3: 873,203 km (0.06 R)
• M4: 1,338,153 km (0.093 R)
• M5: 1,695,093 km (0.102 R)
• M6: 2,319,365 km (0.08 R)
• M7: 2,867,193 km (0.115 R)
• M8: 3,960,604 km (0.092 R)
• M9: 4,444,403 km (0.107 R)
• M10: 6,093,420 km (0.029 R)
• M11: 6,422,237 km (0.069 R)
• M12: 6,972,906 km (0.073 R)
• M13: 7,832,496 km (0.113 R)
• M14: 9,152,398 km (0.104 R)
• M15: 9,497,221 km (0.082 R)
• M16: 10,521,368 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533

Radius: 10

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.52 AU - 1.96 AU

Year: 1557 Days

Day: 8.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,089,841 km

• M1: 125,213 km (0.114 R)
• M2: 1,001,558 km (0.107 R)
• M3: 1,850,077 km (0.083 R)
• M4: 2,476,443 km (0.105 R)
• M5: 2,936,008 km (0.113 R)
• M6: 3,483,087 km (0.1 R)
• M7: 3,958,210 km (0.051 R)
• M8: 4,310,812 km (0.096 R)
• M9: 4,684,508 km (0.078 R)
• M10: 5,454,189 km (0.062 R)
• M11: 6,496,288 km (0.113 R)
• M12: 6,838,567 km (0.102 R)
• M13: 8,329,609 km (0.116 R)
• M14: 9,060,844 km (0.101 R)
• M15: 9,676,289 km (0.046 R)
• M16: 11,128,286 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.3

Radius: 8.5

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.63 AU - 3.45 AU

Year: 3595 Days

Day: 5.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,089,841 km

• M1: 106,214 km (0.063 R)
• M2: 473,627 km (0.073 R)
• M3: 760,406 km (0.119 R)
• M4: 1,132,306 km (0.101 R)
• M5: 1,494,034 km (0.099 R)
• M6: 1,761,365 km (0.086 R)
• M7: 2,946,330 km (0.08 R)
• M8: 4,525,186 km (0.111 R)
• M9: 5,393,901 km (0.116 R)
• M10: 5,895,054 km (0.113 R)
• M11: 6,601,604 km (0.115 R)
• M12: 7,144,196 km (0.108 R)
• M13: 7,683,795 km (0.051 R)
• M14: 14,616,460 km (0.079 R)
• M15: 16,443,499 km (0.066 R)
• M16: 18,184,519 km (0.053 R)
• M17: 19,189,816 km (0.116 R)
• M18: 21,053,507 km (0.107 R)
• M19: 21,700,667 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.9

Radius: 14.8

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.36 AU - 4.16 AU

Year: 4945 Days

Day: 10.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 159.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,089,841 km

• M1: 184,753 km (0.07 R)
• M2: 1,459,178 km (0.032 R)
• M3: 2,104,992 km (0.113 R)
• M4: 2,719,390 km (0.097 R)
• M5: 3,413,823 km (0.039 R)
• M6: 3,898,670 km (0.11 R)
• M7: 5,110,263 km (0.081 R)
• M8: 7,715,061 km (0.049 R)
• M9: 9,499,764 km (0.103 R)
• M10: 11,635,573 km (0.088 R)
• M11: 12,320,581 km (0.086 R)
• M12: 13,129,457 km (0.119 R)
• M13: 13,922,924 km (0.097 R)
• M14: 14,906,231 km (0.093 R)
• M15: 15,715,107 km (0.101 R)
• M16: 17,538,256 km (0.078 R)
• M17: 20,466,485 km (0.106 R)
• M18: 21,330,861 km (0.098 R)
• M19: 24,217,203 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.3

Radius: 12.2

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.18 AU - 4.68 AU

Year: 6324 Days

Day: 12.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,089,841 km

• M1: 151,692 km (0.111 R)
• M2: 564,134 km (0.119 R)
• M3: 1,117,646 km (0.102 R)
• M4: 1,825,842 km (0.04 R)
• M5: 2,436,052 km (0.035 R)
• M6: 2,816,030 km (0.111 R)
• M7: 4,805,981 km (0.111 R)
• M8: 6,303,905 km (0.117 R)
• M9: 7,565,314 km (0.109 R)
• M10: 13,957,332 km (0.102 R)
• M11: 17,867,670 km (0.086 R)
• M12: 23,325,150 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582

Radius: 3.9

Gravity: 38.26 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.06 AU - 6.72 AU

Year: 10956 Days

Day: 22.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,089,841 km

• M1: 49,068 km (0.115 R)
• M2: 320,289 km (0.076 R)
• M3: 582,983 km (0.093 R)
• M4: 714,779 km (0.113 R)
• M5: 1,860,549 km (0.039 R)
• M6: 2,569,942 km (0.086 R)
• M7: 6,145,929 km (0.076 R)
• M8: 6,983,229 km (0.071 R)
• M9: 9,847,130 km (0.051 R)
• M10: 9,997,925 km (0.086 R)
• M11: 11,986,081 km (0.074 R)
• M12: 16,722,798 km (0.037 R)
• M13: 16,865,664 km (0.055 R)
• M14: 22,052,821 km (0.113 R)
• M15: 27,310,138 km (0.061 R)
• M16: 30,174,040 km (0.098 R)
• M17: 31,897,108 km (0.068 R)
• M18: 33,344,617 km (0.113 R)
• M19: 37,214,266 km (0.094 R)
• M20: 41,765,631 km (0.111 R)
• M21: 47,099,693 km (0.059 R)
• M22: 47,242,110 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 442.4

Radius: 5.5

Gravity: 14.62 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.59 AU - 8.89 AU

Year: 16043 Days

Day: 21.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,089,841 km

• M1: 69,563 km (0.093 R)
• M2: 804,388 km (0.11 R)
• M3: 3,304,767 km (0.106 R)
• M4: 3,891,789 km (0.065 R)
• M5: 6,301,212 km (0.116 R)
• M6: 8,228,032 km (0.057 R)
• M7: 8,655,583 km (0.114 R)
• M8: 11,834,688 km (0.075 R)
• M9: 20,366,105 km (0.074 R)
• M10: 21,859,390 km (0.111 R)
• M11: 24,865,410 km (0.088 R)
• M12: 34,164,115 km (0.105 R)
• M13: 35,764,064 km (0.103 R)
• M14: 37,413,231 km (0.101 R)
• M15: 51,667,813 km (0.064 R)
• M16: 52,794,136 km (0.039 R)
• M17: 53,608,547 km (0.061 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.1

Radius: 7.5

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 7.22 AU - 10.64 AU

Year: 18100 Days

Day: 19.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 116.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,089,841 km

• M1: 93,199 km (0.083 R)
• M2: 531,372 km (0.12 R)
• M3: 1,382,434 km (0.061 R)
• M4: 1,649,466 km (0.097 R)
• M5: 2,096,614 km (0.049 R)
• M6: 2,535,834 km (0.053 R)
• M7: 2,869,586 km (0.065 R)
• M8: 4,830,814 km (0.111 R)
• M9: 5,524,649 km (0.104 R)
• M10: 7,866,903 km (0.074 R)
• M11: 9,281,650 km (0.118 R)
• M12: 10,801,116 km (0.102 R)
• M13: 13,646,019 km (0.089 R)
• M14: 16,119,619 km (0.073 R)
• M15: 17,265,689 km (0.045 R)
• M16: 18,877,157 km (0.095 R)
• M17: 20,236,553 km (0.103 R)
• M18: 23,724,577 km (0.06 R)
• M19: 35,277,721 km (0.108 R)
• M20: 47,583,044 km (0.106 R)
• M21: 52,191,256 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 757.5

Radius: 3

Gravity: 84.17 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 7.24 AU - 11.22 AU

Year: 19019 Days

Day: 23.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,089,841 km

• M1: 39,793 km (0.098 R)
• M2: 135,835 km (0.075 R)
• M3: 343,028 km (0.092 R)
• M4: 466,297 km (0.088 R)
• M5: 618,737 km (0.118 R)
• M6: 1,197,381 km (0.119 R)
• M7: 2,216,442 km (0.099 R)
• M8: 2,721,036 km (0.115 R)
• M9: 3,556,091 km (0.069 R)
• M10: 4,144,908 km (0.113 R)
• M11: 4,795,958 km (0.114 R)
• M12: 4,941,218 km (0.104 R)
• M13: 6,168,818 km (0.079 R)
• M14: 6,297,472 km (0.117 R)
• M15: 9,094,803 km (0.079 R)
• M16: 11,295,836 km (0.078 R)
• M17: 13,681,623 km (0.083 R)
• M18: 13,827,331 km (0.087 R)
• M19: 15,419,801 km (0.085 R)
• M20: 16,138,319 km (0.109 R)
• M21: 19,418,552 km (0.072 R)
• M22: 19,787,759 km (0.031 R)
• M23: 23,323,206 km (0.102 R)
• M24: 28,542,227 km (0.116 R)
• M25: 33,159,714 km (0.084 R)
• M26: 33,952,434 km (0.079 R)
• M27: 37,108,649 km (0.078 R)
• M28: 38,250,680 km (0.087 R)
• M29: 44,313,732 km (0.102 R)
• M30: 48,749,309 km (0.12 R)
• M31: 51,864,983 km (0.102 R)
• M32: 56,595,866 km (0.117 R)
• M33: 64,422,677 km (0.112 R)
• M34: 65,448,919 km (0.032 R)
• M35: 67,956,478 km (0.039 R)
• M36: 68,168,309 km (0.109 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 281 - 19,665 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit