🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 688.8

Radius: 12.9

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.55 AU - 0.57 AU

Year: 295 Days

Day: 12.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,637,270 km

• M1: 160,369 km (0.076 R)
• M2: 574,007 km (0.033 R)
• M3: 1,045,240 km (0.081 R)
• M4: 1,519,765 km (0.047 R)
• M5: 1,951,504 km (0.074 R)
• M6: 2,752,152 km (0.073 R)
• M7: 3,244,927 km (0.104 R)
• M8: 3,727,081 km (0.091 R)
• M9: 4,333,102 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.1

Radius: 8.1

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.57 AU - 0.57 AU

Year: 302 Days

Day: 6.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,637,270 km

• M1: 100,679 km (0.115 R)
• M2: 380,128 km (0.112 R)
• M3: 647,160 km (0.085 R)
• M4: 1,094,308 km (0.084 R)
• M5: 1,487,152 km (0.118 R)
• M6: 1,851,423 km (0.099 R)
• M7: 2,199,687 km (0.101 R)
• M8: 2,743,475 km (0.119 R)
• M9: 3,217,401 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.2

Radius: 15

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.73 AU - 1.13 AU

Year: 630 Days

Day: 5.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,637,270 km

• M1: 187,446 km (0.118 R)
• M2: 661,073 km (0.114 R)
• M3: 1,585,438 km (0.084 R)
• M4: 2,139,998 km (0.069 R)
• M5: 2,643,394 km (0.091 R)
• M6: 3,239,243 km (0.077 R)
• M7: 3,765,827 km (0.062 R)
• M8: 4,271,468 km (0.115 R)
• M9: 4,976,373 km (0.076 R)
• M10: 5,738,874 km (0.076 R)
• M11: 6,412,513 km (0.047 R)
• M12: 7,730,021 km (0.038 R)
• M13: 8,305,225 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.3

Radius: 13.6

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.74 AU - 1.94 AU

Year: 1754 Days

Day: 9.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 39,637,270 km

• M1: 169,195 km (0.075 R)
• M2: 672,891 km (0.087 R)
• M3: 1,109,119 km (0.048 R)
• M4: 1,981,274 km (0.066 R)
• M5: 2,557,974 km (0.057 R)
• M6: 3,191,820 km (0.089 R)
• M7: 3,821,328 km (0.026 R)
• M8: 4,413,736 km (0.087 R)
• M9: 5,141,529 km (0.118 R)
• M10: 5,703,568 km (0.105 R)
• M11: 7,445,935 km (0.045 R)
• M12: 8,374,339 km (0.114 R)
• M13: 8,934,733 km (0.056 R)
• M14: 9,463,412 km (0.119 R)
• M15: 9,895,301 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728

Radius: 8.8

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.75 AU - 3.99 AU

Year: 4349 Days

Day: 10.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 125.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,637,270 km

• M1: 114,891 km (0.113 R)
• M2: 1,298,360 km (0.095 R)
• M3: 1,995,037 km (0.114 R)
• M4: 2,921,347 km (0.095 R)
• M5: 3,480,993 km (0.027 R)
• M6: 3,974,217 km (0.116 R)
• M7: 4,249,627 km (0.097 R)
• M8: 4,787,880 km (0.054 R)
• M9: 5,343,486 km (0.072 R)
• M10: 6,090,129 km (0.115 R)
• M11: 6,970,214 km (0.118 R)
• M12: 7,270,457 km (0.04 R)
• M13: 8,672,637 km (0.12 R)
• M14: 9,098,692 km (0.065 R)
• M15: 9,498,118 km (0.114 R)
• M16: 10,723,175 km (0.096 R)
• M17: 11,305,261 km (0.089 R)
• M18: 14,644,584 km (0.108 R)
• M19: 16,391,588 km (0.089 R)
• M20: 17,651,202 km (0.058 R)
• M21: 18,909,769 km (0.099 R)
• M22: 21,046,326 km (0.085 R)
• M23: 21,675,086 km (0.096 R)
• M24: 26,031,376 km (0.038 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.8

Radius: 9.7

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.66 AU - 5.12 AU

Year: 6466 Days

Day: 6.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,637,270 km

• M1: 120,725 km (0.054 R)
• M2: 619,485 km (0.102 R)
• M3: 1,038,808 km (0.049 R)
• M4: 1,633,160 km (0.047 R)
• M5: 2,126,534 km (0.049 R)
• M6: 2,785,363 km (0.103 R)
• M7: 4,651,447 km (0.101 R)
• M8: 5,399,436 km (0.091 R)
• M9: 5,788,241 km (0.094 R)
• M10: 6,165,975 km (0.065 R)
• M11: 7,774,901 km (0.102 R)
• M12: 8,199,459 km (0.038 R)
• M13: 9,526,542 km (0.098 R)
• M14: 13,843,488 km (0.104 R)
• M15: 15,773,151 km (0.111 R)
• M16: 16,512,164 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850.8

Radius: 9.4

Gravity: 9.63 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 3.93 AU - 4.93 AU

Year: 6554 Days

Day: 14.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,637,270 km

• M1: 116,836 km (0.092 R)
• M2: 594,652 km (0.119 R)
• M3: 923,019 km (0.116 R)
• M4: 1,282,802 km (0.106 R)
• M5: 1,600,398 km (0.067 R)
• M6: 2,048,593 km (0.114 R)
• M7: 3,071,394 km (0.097 R)
• M8: 3,963,895 km (0.097 R)
• M9: 4,817,949 km (0.077 R)
• M10: 6,742,974 km (0.093 R)
• M11: 7,107,694 km (0.066 R)
• M12: 8,742,649 km (0.114 R)
• M13: 10,565,948 km (0.098 R)
• M14: 12,520,594 km (0.093 R)
• M15: 14,644,285 km (0.032 R)
• M16: 18,089,225 km (0.087 R)
• M17: 18,938,193 km (0.079 R)
• M18: 19,372,475 km (0.093 R)
• M19: 24,942,603 km (0.057 R)
• M20: 26,530,584 km (0.09 R)
• M21: 30,102,233 km (0.065 R)
• M22: 33,034,651 km (0.097 R)
• M23: 33,982,204 km (0.114 R)
• M24: 38,413,292 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 166

Radius: 4.5

Gravity: 8.2 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.3 AU - 6.34 AU

Year: 9869 Days

Day: 22.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 39,637,270 km

• M1: 56,548 km (0.092 R)
• M2: 278,551 km (0.069 R)
• M3: 664,215 km (0.079 R)
• M4: 815,009 km (0.116 R)
• M5: 1,052,271 km (0.118 R)
• M6: 1,259,614 km (0.063 R)
• M7: 1,565,841 km (0.061 R)
• M8: 2,439,792 km (0.109 R)
• M9: 2,732,405 km (0.109 R)
• M10: 3,346,355 km (0.045 R)
• M11: 5,056,109 km (0.077 R)
• M12: 5,502,808 km (0.06 R)
• M13: 5,795,122 km (0.094 R)
• M14: 6,159,393 km (0.09 R)
• M15: 6,967,222 km (0.118 R)
• M16: 7,136,866 km (0.067 R)
• M17: 8,326,767 km (0.086 R)
• M18: 8,988,588 km (0.108 R)
• M19: 9,727,003 km (0.111 R)
• M20: 10,728,112 km (0.078 R)
• M21: 14,304,249 km (0.119 R)
• M22: 14,689,314 km (0.066 R)
• M23: 15,081,261 km (0.069 R)
• M24: 17,023,340 km (0.096 R)
• M25: 21,754,672 km (0.092 R)
• M26: 24,850,001 km (0.03 R)
• M27: 25,406,356 km (0.111 R)
• M28: 26,133,701 km (0.099 R)
• M29: 27,629,829 km (0.085 R)
• M30: 29,182,057 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.8

Radius: 3.9

Gravity: 41.41 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.18 AU - 8.22 AU

Year: 13580 Days

Day: 19.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 39,637,270 km

• M1: 48,919 km (0.085 R)
• M2: 226,192 km (0.034 R)
• M3: 452,683 km (0.108 R)
• M4: 1,099,245 km (0.065 R)
• M5: 1,867,729 km (0.058 R)
• M6: 2,100,803 km (0.087 R)
• M7: 2,414,061 km (0.117 R)
• M8: 2,690,817 km (0.068 R)
• M9: 4,013,412 km (0.111 R)
• M10: 4,781,896 km (0.088 R)
• M11: 4,946,603 km (0.118 R)
• M12: 5,680,082 km (0.114 R)
• M13: 6,403,836 km (0.097 R)
• M14: 6,726,369 km (0.119 R)
• M15: 7,403,449 km (0.061 R)
• M16: 8,078,584 km (0.046 R)
• M17: 8,695,975 km (0.099 R)
• M18: 9,917,441 km (0.095 R)
• M19: 10,239,825 km (0.107 R)
• M20: 10,569,239 km (0.097 R)
• M21: 10,792,589 km (0.084 R)
• M22: 11,191,267 km (0.091 R)
• M23: 12,884,117 km (0.104 R)
• M24: 13,924,420 km (0.06 R)
• M25: 15,089,638 km (0.102 R)
• M26: 15,950,275 km (0.036 R)
• M27: 16,392,635 km (0.082 R)
• M28: 20,488,476 km (0.112 R)
• M29: 20,835,991 km (0.109 R)
• M30: 21,099,134 km (0.053 R)
• M31: 23,190,512 km (0.045 R)
• M32: 23,567,798 km (0.055 R)
• M33: 28,743,585 km (0.104 R)
• M34: 32,821,025 km (0.114 R)
• M35: 35,493,441 km (0.1 R)
• M36: 38,570,221 km (0.12 R)
• M37: 40,580,816 km (0.077 R)
• M38: 42,801,297 km (0.108 R)
• M39: 45,541,631 km (0.069 R)
• M40: 45,984,740 km (0.103 R)
• M41: 48,243,518 km (0.039 R)
• M42: 51,209,446 km (0.078 R)
• M43: 53,634,876 km (0.115 R)
• M44: 55,461,615 km (0.062 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138.1

Radius: 8

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 7.98 AU - 8.58 AU

Year: 16748 Days

Day: 19.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,637,270 km

• M1: 102,923 km (0.039 R)
• M2: 465,698 km (0.084 R)
• M3: 1,469,350 km (0.103 R)
• M4: 2,251,897 km (0.118 R)
• M5: 2,765,167 km (0.116 R)
• M6: 3,421,752 km (0.075 R)
• M7: 4,444,852 km (0.107 R)
• M8: 4,751,079 km (0.081 R)
• M9: 8,096,536 km (0.12 R)
• M10: 9,386,369 km (0.105 R)
• M11: 12,205,241 km (0.112 R)
• M12: 13,660,978 km (0.11 R)
• M13: 21,033,760 km (0.088 R)
• M14: 21,979,218 km (0.099 R)
• M15: 25,600,235 km (0.042 R)
• M16: 28,160,752 km (0.087 R)
• M17: 29,992,279 km (0.038 R)
• M18: 34,861,839 km (0.095 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: 266 - 15,463 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit