🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.6

Radius: 12.7

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.51 AU - 0.69 AU

Year: 315 Days

Day: 12.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 53,510,941 km

• M1: 157,975 km (0.06 R)
• M2: 640,728 km (0.061 R)
• M3: 1,064,239 km (0.028 R)
• M4: 1,583,045 km (0.11 R)
• M5: 2,363,796 km (0.105 R)
• M6: 2,858,217 km (0.1 R)
• M7: 3,455,561 km (0.091 R)
• M8: 4,045,426 km (0.098 R)
• M9: 4,730,135 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.7

Radius: 11.2

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.62 AU - 0.66 AU

Year: 347 Days

Day: 5.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,510,941 km

• M1: 140,173 km (0.09 R)
• M2: 633,248 km (0.119 R)
• M3: 1,399,787 km (0.092 R)
• M4: 1,878,052 km (0.081 R)
• M5: 2,429,170 km (0.051 R)
• M6: 3,691,028 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850.3

Radius: 10.1

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.38 AU - 1.88 AU

Year: 1411 Days

Day: 5.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 154.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,510,941 km

• M1: 125,662 km (0.045 R)
• M2: 1,065,586 km (0.092 R)
• M3: 1,526,048 km (0.055 R)
• M4: 1,865,934 km (0.069 R)
• M5: 2,756,640 km (0.098 R)
• M6: 3,085,157 km (0.116 R)
• M7: 3,423,996 km (0.106 R)
• M8: 3,996,806 km (0.085 R)
• M9: 4,400,870 km (0.038 R)
• M10: 4,791,620 km (0.116 R)
• M11: 5,205,557 km (0.103 R)
• M12: 5,598,401 km (0.096 R)
• M13: 7,105,600 km (0.044 R)
• M14: 7,507,719 km (0.099 R)
• M15: 9,333,561 km (0.115 R)
• M16: 9,981,020 km (0.077 R)
• M17: 11,221,635 km (0.093 R)
• M18: 13,635,547 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.8

Radius: 12

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.7 AU - 1.94 AU

Year: 1665 Days

Day: 11 Hours

Environment

Temp: -203 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,510,941 km

• M1: 149,448 km (0.081 R)
• M2: 574,007 km (0.113 R)
• M3: 1,031,926 km (0.083 R)
• M4: 1,474,137 km (0.116 R)
• M5: 2,080,906 km (0.114 R)
• M6: 2,610,782 km (0.095 R)
• M7: 4,108,257 km (0.109 R)
• M8: 5,318,653 km (0.098 R)
• M9: 6,215,492 km (0.068 R)
• M10: 6,626,737 km (0.092 R)
• M11: 7,122,055 km (0.06 R)
• M12: 7,665,096 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.4

Radius: 8.5

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 4.7 AU - 4.98 AU

Year: 7222 Days

Day: 12.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,510,941 km

• M1: 111,600 km (0.088 R)
• M2: 478,414 km (0.075 R)
• M3: 1,108,670 km (0.085 R)
• M4: 2,055,624 km (0.11 R)
• M5: 3,656,022 km (0.067 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84

Radius: 3.9

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 4.43 AU - 7.19 AU

Year: 9499 Days

Day: 17.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,510,941 km

• M1: 48,619 km (0.117 R)
• M2: 327,919 km (0.113 R)
• M3: 510,578 km (0.054 R)
• M4: 1,093,261 km (0.102 R)
• M5: 1,874,162 km (0.077 R)
• M6: 2,044,853 km (0.036 R)
• M7: 2,417,352 km (0.089 R)
• M8: 2,540,621 km (0.106 R)
• M9: 2,766,513 km (0.061 R)
• M10: 3,076,630 km (0.097 R)
• M11: 4,256,359 km (0.074 R)
• M12: 4,459,513 km (0.072 R)
• M13: 4,669,249 km (0.052 R)
• M14: 5,468,251 km (0.111 R)
• M15: 6,620,155 km (0.097 R)
• M16: 10,128,374 km (0.102 R)
• M17: 10,778,527 km (0.082 R)
• M18: 10,987,365 km (0.106 R)
• M19: 12,116,530 km (0.064 R)
• M20: 12,942,310 km (0.11 R)
• M21: 13,513,026 km (0.088 R)
• M22: 14,150,313 km (0.095 R)
• M23: 14,501,569 km (0.074 R)
• M24: 20,364,160 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.9

Radius: 4.6

Gravity: 17.95 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 8.01 AU - 8.33 AU

Year: 15839 Days

Day: 15.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 53,510,941 km

• M1: 57,446 km (0.101 R)
• M2: 248,632 km (0.117 R)
• M3: 588,518 km (0.078 R)
• M4: 796,160 km (0.101 R)
• M5: 943,514 km (0.104 R)
• M6: 1,334,114 km (0.094 R)
• M7: 1,486,105 km (0.057 R)
• M8: 2,699,494 km (0.071 R)
• M9: 3,452,719 km (0.107 R)
• M10: 3,989,326 km (0.105 R)
• M11: 4,799,399 km (0.108 R)
• M12: 4,960,665 km (0.108 R)
• M13: 5,125,672 km (0.119 R)
• M14: 6,345,942 km (0.115 R)
• M15: 6,859,960 km (0.066 R)
• M16: 10,813,682 km (0.081 R)
• M17: 11,545,515 km (0.12 R)
• M18: 12,370,098 km (0.072 R)
• M19: 13,743,856 km (0.062 R)
• M20: 14,135,503 km (0.048 R)
• M21: 18,157,142 km (0.031 R)
• M22: 18,787,548 km (0.108 R)
• M23: 20,427,290 km (0.117 R)
• M24: 20,681,158 km (0.106 R)
• M25: 22,338,403 km (0.062 R)
• M26: 22,607,978 km (0.112 R)
• M27: 22,879,648 km (0.075 R)
• M28: 23,062,008 km (0.062 R)
• M29: 25,326,321 km (0.103 R)
• M30: 25,521,546 km (0.114 R)
• M31: 30,731,891 km (0.069 R)
• M32: 32,538,135 km (0.062 R)
• M33: 33,116,780 km (0.091 R)
• M34: 41,275,100 km (0.044 R)
• M35: 43,750,346 km (0.082 R)
• M36: 47,202,018 km (0.111 R)
• M37: 47,497,623 km (0.053 R)
• M38: 49,448,978 km (0.049 R)
• M39: 49,753,858 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 11,179 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit