🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.5

Radius: 10.4

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.59 AU - 0.79 AU

Year: 389 Days

Day: 12.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 60,044,207 km

• M1: 129,701 km (0.05 R)
• M2: 521,199 km (0.054 R)
• M3: 1,161,029 km (0.077 R)
• M4: 2,978,643 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.5

Radius: 12

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.18 AU - 1.44 AU

Year: 1017 Days

Day: 14.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,044,207 km

• M1: 149,897 km (0.082 R)
• M2: 550,969 km (0.087 R)
• M3: 1,117,795 km (0.091 R)
• M4: 2,139,549 km (0.107 R)
• M5: 2,576,823 km (0.066 R)
• M6: 3,776,299 km (0.113 R)
• M7: 4,735,072 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 11.6

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.35 AU - 1.79 AU

Year: 1334 Days

Day: 10.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,044,207 km

• M1: 144,512 km (0.062 R)
• M2: 528,529 km (0.055 R)
• M3: 920,924 km (0.092 R)
• M4: 1,348,176 km (0.063 R)
• M5: 1,782,010 km (0.08 R)
• M6: 2,430,666 km (0.108 R)
• M7: 3,791,259 km (0.081 R)
• M8: 4,462,355 km (0.093 R)
• M9: 5,072,116 km (0.119 R)
• M10: 5,496,824 km (0.095 R)
• M11: 7,416,913 km (0.112 R)
• M12: 7,825,913 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.5

Radius: 14.5

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 2.27 AU - 2.91 AU

Year: 2827 Days

Day: 13 Hours

Environment

Temp: -199 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,044,207 km

• M1: 180,415 km (0.067 R)
• M2: 878,738 km (0.025 R)
• M3: 1,371,064 km (0.064 R)
• M4: 2,666,881 km (0.115 R)
• M5: 3,265,123 km (0.055 R)
• M6: 9,995,232 km (0.104 R)
• M7: 11,937,461 km (0.088 R)
• M8: 12,566,371 km (0.108 R)
• M9: 14,540,015 km (0.111 R)
• M10: 18,039,708 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.2

Radius: 14.9

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.02 AU - 3.24 AU

Year: 2893 Days

Day: 14.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,044,207 km

• M1: 185,501 km (0.058 R)
• M2: 828,473 km (0.093 R)
• M3: 1,359,545 km (0.103 R)
• M4: 1,950,158 km (0.082 R)
• M5: 2,418,549 km (0.067 R)
• M6: 3,779,590 km (0.116 R)
• M7: 6,541,765 km (0.104 R)
• M8: 9,579,200 km (0.085 R)
• M9: 10,100,998 km (0.117 R)
• M10: 13,641,979 km (0.053 R)
• M11: 15,538,432 km (0.089 R)
• M12: 16,576,641 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 812.2

Radius: 6

Gravity: 22.56 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.78 AU - 7.62 AU

Year: 13104 Days

Day: 15.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,044,207 km

• M1: 76,145 km (0.065 R)
• M2: 394,190 km (0.12 R)
• M3: 967,001 km (0.05 R)
• M4: 1,539,212 km (0.091 R)
• M5: 2,587,894 km (0.095 R)
• M6: 3,073,937 km (0.065 R)
• M7: 9,575,909 km (0.107 R)
• M8: 10,902,543 km (0.104 R)
• M9: 21,699,620 km (0.108 R)
• M10: 23,485,220 km (0.086 R)
• M11: 26,500,216 km (0.074 R)
• M12: 31,609,132 km (0.111 R)
• M13: 32,320,321 km (0.082 R)
• M14: 33,774,861 km (0.118 R)
• M15: 37,865,764 km (0.097 R)
• M16: 44,307,449 km (0.034 R)
• M17: 51,932,602 km (0.112 R)
• M18: 53,589,248 km (0.095 R)
• M19: 58,414,977 km (0.081 R)
• M20: 60,750,648 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 474.4

Radius: 4.2

Gravity: 26.89 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.4 AU - 10.52 AU

Year: 19735 Days

Day: 24.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,044,207 km

• M1: 52,509 km (0.112 R)
• M2: 346,319 km (0.111 R)
• M3: 531,521 km (0.06 R)
• M4: 895,493 km (0.11 R)
• M5: 1,237,623 km (0.075 R)
• M6: 1,678,189 km (0.074 R)
• M7: 2,492,001 km (0.036 R)
• M8: 2,719,091 km (0.08 R)
• M9: 3,624,607 km (0.109 R)
• M10: 6,499,429 km (0.051 R)
• M11: 6,669,372 km (0.12 R)
• M12: 12,205,092 km (0.119 R)
• M13: 12,398,971 km (0.116 R)
• M14: 32,426,386 km (0.107 R)
• M15: 45,485,981 km (0.111 R)
• M16: 51,125,521 km (0.056 R)
• M17: 52,989,660 km (0.079 R)
• M18: 54,723,350 km (0.04 R)
• M19: 55,959,028 km (0.109 R)
• M20: 62,609,551 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789

Radius: 3.9

Gravity: 51.87 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 9.63 AU - 9.77 AU

Year: 20490 Days

Day: 19.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 60,044,207 km

• M1: 48,470 km (0.04 R)
• M2: 270,772 km (0.113 R)
• M3: 586,723 km (0.068 R)
• M4: 1,099,844 km (0.049 R)
• M5: 2,324,452 km (0.073 R)
• M6: 3,039,829 km (0.075 R)
• M7: 4,423,759 km (0.105 R)
• M8: 4,853,853 km (0.109 R)
• M9: 5,631,761 km (0.03 R)
• M10: 6,007,551 km (0.116 R)
• M11: 7,729,722 km (0.093 R)
• M12: 8,036,846 km (0.114 R)
• M13: 8,512,867 km (0.078 R)
• M14: 9,290,327 km (0.053 R)
• M15: 9,696,336 km (0.075 R)
• M16: 10,985,271 km (0.108 R)
• M17: 12,804,531 km (0.098 R)
• M18: 14,123,086 km (0.096 R)
• M19: 14,893,515 km (0.087 R)
• M20: 19,542,718 km (0.072 R)
• M21: 25,296,252 km (0.094 R)
• M22: 29,165,302 km (0.082 R)
• M23: 32,742,486 km (0.039 R)
• M24: 36,174,112 km (0.111 R)
• M25: 36,744,528 km (0.045 R)
• M26: 42,150,546 km (0.055 R)
• M27: 48,063,103 km (0.099 R)
• M28: 48,579,365 km (0.098 R)
• M29: 49,798,289 km (0.074 R)
• M30: 51,574,913 km (0.101 R)
• M31: 53,947,087 km (0.078 R)
• M32: 55,631,259 km (0.083 R)
• M33: 55,820,650 km (0.085 R)
• M34: 66,265,574 km (0.096 R)
• M35: 67,119,029 km (0.077 R)
• M36: 67,333,553 km (0.04 R)
• M37: 78,651,679 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.8

Radius: 5.4

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 9.11 AU - 11.39 AU

Year: 22258 Days

Day: 17.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,044,207 km

• M1: 68,366 km (0.042 R)
• M2: 622,626 km (0.102 R)
• M3: 2,342,254 km (0.113 R)
• M4: 4,051,410 km (0.113 R)
• M5: 5,943,224 km (0.072 R)
• M6: 10,600,056 km (0.11 R)
• M7: 10,884,741 km (0.085 R)
• M8: 14,292,281 km (0.063 R)
• M9: 15,351,733 km (0.051 R)
• M10: 22,082,441 km (0.044 R)
• M11: 39,019,912 km (0.117 R)
• M12: 40,109,433 km (0.101 R)
• M13: 41,079,276 km (0.058 R)
• M14: 41,499,796 km (0.117 R)
• M15: 53,131,030 km (0.079 R)
• M16: 58,086,609 km (0.096 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 545 - 10,962 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit