🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.2

Radius: 11.6

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.78 AU - 0.88 AU

Year: 488 Days

Day: 11.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,090,894 km

• M1: 144,212 km (0.052 R)
• M2: 732,730 km (0.112 R)
• M3: 1,470,397 km (0.071 R)
• M4: 1,859,950 km (0.053 R)
• M5: 2,273,738 km (0.052 R)
• M6: 3,213,362 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.2

Radius: 10.5

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.11 AU - 1.35 AU

Year: 881 Days

Day: 9.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,090,894 km

• M1: 130,599 km (0.099 R)
• M2: 485,146 km (0.114 R)
• M3: 875,148 km (0.091 R)
• M4: 1,501,065 km (0.078 R)
• M5: 2,277,927 km (0.11 R)
• M6: 3,316,286 km (0.112 R)
• M7: 3,679,958 km (0.097 R)
• M8: 4,231,376 km (0.084 R)
• M9: 4,613,150 km (0.058 R)
• M10: 5,152,450 km (0.093 R)
• M11: 5,660,634 km (0.082 R)
• M12: 6,357,461 km (0.075 R)
• M13: 7,173,966 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 982.4

Radius: 10

Gravity: 9.82 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.16 AU - 1.66 AU

Year: 1081 Days

Day: 5.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,090,894 km

• M1: 125,363 km (0.05 R)
• M2: 439,219 km (0.061 R)
• M3: 801,246 km (0.082 R)
• M4: 1,337,405 km (0.119 R)
• M5: 1,651,261 km (0.12 R)
• M6: 2,256,684 km (0.047 R)
• M7: 2,630,828 km (0.089 R)
• M8: 3,367,448 km (0.062 R)
• M9: 3,908,693 km (0.102 R)
• M10: 4,342,976 km (0.116 R)
• M11: 5,024,843 km (0.105 R)
• M12: 6,111,073 km (0.118 R)
• M13: 7,847,605 km (0.09 R)
• M14: 9,426,162 km (0.11 R)
• M15: 9,922,677 km (0.071 R)
• M16: 10,338,858 km (0.078 R)
• M17: 11,035,835 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.3

Radius: 11.5

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.59 AU - 1.71 AU

Year: 1368 Days

Day: 7.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,090,894 km

• M1: 143,614 km (0.058 R)
• M2: 501,302 km (0.072 R)
• M3: 1,231,490 km (0.104 R)
• M4: 1,749,397 km (0.105 R)
• M5: 2,673,314 km (0.077 R)
• M6: 3,132,729 km (0.113 R)
• M7: 3,864,711 km (0.117 R)
• M8: 4,893,646 km (0.059 R)
• M9: 6,096,562 km (0.067 R)
• M10: 6,546,253 km (0.092 R)
• M11: 7,237,844 km (0.069 R)
• M12: 7,924,798 km (0.048 R)
• M13: 8,851,108 km (0.102 R)
• M14: 9,697,084 km (0.111 R)
• M15: 10,500,574 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.2

Radius: 12.5

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.39 AU - 2.07 AU

Year: 1469 Days

Day: 11.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,090,894 km

• M1: 166,353 km (0.115 R)
• M2: 622,626 km (0.057 R)
• M3: 1,270,684 km (0.074 R)
• M4: 2,221,828 km (0.088 R)
• M5: 2,706,824 km (0.108 R)
• M6: 3,154,421 km (0.065 R)
• M7: 3,551,304 km (0.113 R)
• M8: 4,313,206 km (0.11 R)
• M9: 5,181,322 km (0.078 R)
• M10: 6,211,154 km (0.088 R)
• M11: 7,291,101 km (0.108 R)
• M12: 8,643,765 km (0.033 R)
• M13: 9,558,107 km (0.089 R)
• M14: 9,988,351 km (0.077 R)
• M15: 10,781,519 km (0.111 R)
• M16: 11,878,669 km (0.091 R)
• M17: 12,337,935 km (0.078 R)
• M18: 13,996,975 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.3

Radius: 12.2

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.62 AU - 2.34 AU

Year: 1799 Days

Day: 13.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,090,894 km

• M1: 170,542 km (0.092 R)
• M2: 985,401 km (0.08 R)
• M3: 1,680,433 km (0.093 R)
• M4: 2,175,452 km (0.061 R)
• M5: 2,696,651 km (0.062 R)
• M6: 3,792,904 km (0.043 R)
• M7: 4,433,034 km (0.079 R)
• M8: 5,277,214 km (0.092 R)
• M9: 6,377,357 km (0.083 R)
• M10: 6,847,244 km (0.111 R)
• M11: 7,682,150 km (0.111 R)
• M12: 8,245,236 km (0.079 R)
• M13: 8,835,699 km (0.088 R)
• M14: 15,629,836 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.2

Radius: 12.3

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.17 AU - 4.15 AU

Year: 4521 Days

Day: 8.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,090,894 km

• M1: 153,039 km (0.087 R)
• M2: 571,763 km (0.092 R)
• M3: 981,063 km (0.098 R)
• M4: 2,016,430 km (0.088 R)
• M5: 2,471,058 km (0.069 R)
• M6: 3,136,170 km (0.109 R)
• M7: 3,608,151 km (0.11 R)
• M8: 8,878,334 km (0.095 R)
• M9: 9,516,669 km (0.097 R)
• M10: 10,329,883 km (0.115 R)
• M11: 12,628,454 km (0.093 R)
• M12: 16,762,890 km (0.083 R)
• M13: 17,220,510 km (0.117 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.5

Radius: 9.7

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.32 AU - 4.68 AU

Year: 5165 Days

Day: 9.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 27,090,894 km

• M1: 120,725 km (0.067 R)
• M2: 479,611 km (0.073 R)
• M3: 813,064 km (0.113 R)
• M4: 2,020,618 km (0.052 R)
• M5: 2,356,017 km (0.046 R)
• M6: 2,902,947 km (0.054 R)
• M7: 3,719,302 km (0.041 R)
• M8: 4,414,783 km (0.041 R)
• M9: 4,781,298 km (0.098 R)
• M10: 5,382,831 km (0.049 R)
• M11: 5,859,300 km (0.056 R)
• M12: 6,212,351 km (0.075 R)
• M13: 6,610,880 km (0.065 R)
• M14: 7,157,660 km (0.111 R)
• M15: 8,415,179 km (0.109 R)
• M16: 8,903,766 km (0.083 R)
• M17: 10,145,279 km (0.09 R)
• M18: 12,053,699 km (0.076 R)
• M19: 14,991,203 km (0.066 R)
• M20: 20,985,440 km (0.096 R)
• M21: 22,166,066 km (0.066 R)
• M22: 23,537,579 km (0.093 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 493 - 15,968 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit