🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.2

Radius: 11.6

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.47 AU - 0.75 AU

Year: 335 Days

Day: 5.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,342,228 km

• M1: 144,212 km (0.101 R)
• M2: 597,344 km (0.116 R)
• M3: 1,662,930 km (0.106 R)
• M4: 2,069,088 km (0.103 R)
• M5: 2,760,679 km (0.105 R)
• M6: 3,359,220 km (0.093 R)
• M7: 3,732,018 km (0.114 R)
• M8: 4,370,502 km (0.102 R)
• M9: 5,125,672 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.7

Radius: 12.7

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.05 AU - 1.15 AU

Year: 811 Days

Day: 11.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 122 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,342,228 km

• M1: 158,873 km (0.104 R)
• M2: 652,696 km (0.048 R)
• M3: 1,318,705 km (0.109 R)
• M4: 1,743,563 km (0.066 R)
• M5: 2,650,276 km (0.099 R)
• M6: 3,312,845 km (0.114 R)
• M7: 3,957,761 km (0.058 R)
• M8: 4,393,839 km (0.08 R)
• M9: 5,344,683 km (0.106 R)
• M10: 6,805,058 km (0.109 R)
• M11: 7,386,395 km (0.108 R)
• M12: 8,675,629 km (0.064 R)
• M13: 9,360,040 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.9

Radius: 14.5

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.26 AU - 1.34 AU

Year: 1042 Days

Day: 13 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,342,228 km

• M1: 180,565 km (0.088 R)
• M2: 721,959 km (0.119 R)
• M3: 1,264,551 km (0.097 R)
• M4: 1,861,596 km (0.1 R)
• M5: 2,599,562 km (0.038 R)
• M6: 3,095,778 km (0.099 R)
• M7: 3,713,618 km (0.113 R)
• M8: 4,580,388 km (0.077 R)
• M9: 5,539,609 km (0.048 R)
• M10: 6,243,916 km (0.113 R)
• M11: 6,783,067 km (0.115 R)
• M12: 8,695,077 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.8

Radius: 13

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.25 AU - 1.59 AU

Year: 1189 Days

Day: 7 Hours

Environment

Temp: -188 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,342,228 km

• M1: 164,109 km (0.098 R)
• M2: 576,101 km (0.082 R)
• M3: 1,158,037 km (0.068 R)
• M4: 1,790,088 km (0.089 R)
• M5: 2,202,380 km (0.076 R)
• M6: 3,185,836 km (0.047 R)
• M7: 3,628,646 km (0.068 R)
• M8: 4,082,227 km (0.097 R)
• M9: 4,590,261 km (0.091 R)
• M10: 5,468,999 km (0.11 R)
• M11: 6,796,979 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.5

Radius: 12.5

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.24 AU - 1.66 AU

Year: 1227 Days

Day: 8.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,342,228 km

• M1: 155,881 km (0.073 R)
• M2: 570,716 km (0.119 R)
• M3: 1,032,375 km (0.115 R)
• M4: 1,521,859 km (0.113 R)
• M5: 1,971,102 km (0.118 R)
• M6: 2,398,951 km (0.114 R)
• M7: 3,415,020 km (0.06 R)
• M8: 5,690,553 km (0.118 R)
• M9: 6,692,560 km (0.094 R)
• M10: 8,057,341 km (0.115 R)
• M11: 12,722,401 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.1

Radius: 11.9

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.57 AU - 2.29 AU

Year: 1885 Days

Day: 10.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,342,228 km

• M1: 147,952 km (0.055 R)
• M2: 683,812 km (0.048 R)
• M3: 1,941,780 km (0.037 R)
• M4: 2,816,479 km (0.083 R)
• M5: 4,098,682 km (0.095 R)
• M6: 5,085,131 km (0.092 R)
• M7: 6,201,879 km (0.076 R)
• M8: 6,969,914 km (0.091 R)
• M9: 10,165,475 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.3

Radius: 9.2

Gravity: 7.58 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.75 AU - 2.71 AU

Year: 2341 Days

Day: 12.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,342,228 km

• M1: 114,742 km (0.094 R)
• M2: 519,703 km (0.068 R)
• M3: 989,141 km (0.102 R)
• M4: 1,694,944 km (0.088 R)
• M5: 3,106,998 km (0.05 R)
• M6: 5,201,817 km (0.113 R)
• M7: 5,877,252 km (0.114 R)
• M8: 7,055,036 km (0.118 R)
• M9: 7,402,103 km (0.079 R)
• M10: 7,943,946 km (0.063 R)
• M11: 8,256,157 km (0.062 R)
• M12: 8,806,079 km (0.107 R)
• M13: 9,483,907 km (0.119 R)
• M14: 10,269,146 km (0.112 R)
• M15: 11,726,977 km (0.103 R)
• M16: 12,091,547 km (0.104 R)
• M17: 13,100,734 km (0.063 R)
• M18: 16,115,431 km (0.096 R)
• M19: 16,974,272 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.5

Radius: 9.3

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.31 AU - 2.81 AU

Year: 2879 Days

Day: 10.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,342,228 km

• M1: 115,639 km (0.099 R)
• M2: 409,449 km (0.1 R)
• M3: 936,632 km (0.06 R)
• M4: 1,952,551 km (0.09 R)
• M5: 2,403,140 km (0.09 R)
• M6: 2,922,095 km (0.095 R)
• M7: 3,465,734 km (0.106 R)
• M8: 5,039,204 km (0.102 R)
• M9: 5,641,485 km (0.111 R)
• M10: 6,029,991 km (0.104 R)
• M11: 7,711,022 km (0.055 R)
• M12: 8,247,929 km (0.042 R)
• M13: 8,659,323 km (0.05 R)
• M14: 9,115,297 km (0.089 R)
• M15: 10,409,917 km (0.11 R)
• M16: 10,717,341 km (0.091 R)
• M17: 11,066,054 km (0.076 R)
• M18: 11,859,970 km (0.067 R)
• M19: 12,691,435 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392

Radius: 4.2

Gravity: 22.22 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.46 AU - 8.46 AU

Year: 17297 Days

Day: 22.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,342,228 km

• M1: 52,359 km (0.04 R)
• M2: 253,419 km (0.102 R)
• M3: 420,819 km (0.098 R)
• M4: 1,024,745 km (0.077 R)
• M5: 2,225,418 km (0.111 R)
• M6: 2,702,934 km (0.078 R)
• M7: 3,503,133 km (0.08 R)
• M8: 4,327,118 km (0.077 R)
• M9: 6,507,657 km (0.074 R)
• M10: 6,916,957 km (0.102 R)
• M11: 10,661,990 km (0.107 R)
• M12: 13,443,463 km (0.081 R)
• M13: 24,318,181 km (0.116 R)
• M14: 26,003,700 km (0.054 R)
• M15: 26,513,829 km (0.118 R)
• M16: 27,977,794 km (0.117 R)
• M17: 28,729,673 km (0.05 R)
• M18: 30,951,799 km (0.07 R)
• M19: 34,129,707 km (0.113 R)
• M20: 38,431,992 km (0.083 R)
• M21: 40,303,910 km (0.067 R)
• M22: 43,509,643 km (0.115 R)
• M23: 43,652,659 km (0.087 R)
• M24: 44,954,908 km (0.106 R)
• M25: 45,101,065 km (0.091 R)
• M26: 49,171,175 km (0.087 R)
• M27: 52,825,851 km (0.03 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 20,069 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit