🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.1

Radius: 10.8

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.7 AU - 0.76 AU

Year: 423 Days

Day: 10.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,900,894 km

• M1: 134,339 km (0.104 R)
• M2: 512,074 km (0.032 R)
• M3: 902,225 km (0.112 R)
• M4: 1,242,560 km (0.074 R)
• M5: 1,697,786 km (0.082 R)
• M6: 2,271,494 km (0.078 R)
• M7: 2,632,474 km (0.099 R)
• M8: 3,042,073 km (0.111 R)
• M9: 3,713,169 km (0.05 R)
• M10: 4,065,621 km (0.116 R)
• M11: 4,413,736 km (0.095 R)
• M12: 4,795,958 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.2

Radius: 8

Gravity: 13.53 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.05 AU - 1.19 AU

Year: 804 Days

Day: 9.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 60,900,894 km

• M1: 99,483 km (0.099 R)
• M2: 670,647 km (0.112 R)
• M3: 1,272,629 km (0.096 R)
• M4: 1,620,893 km (0.06 R)
• M5: 2,289,895 km (0.054 R)
• M6: 2,639,804 km (0.106 R)
• M7: 3,335,135 km (0.088 R)
• M8: 3,847,358 km (0.094 R)
• M9: 4,757,362 km (0.102 R)
• M10: 5,047,133 km (0.036 R)
• M11: 5,484,557 km (0.081 R)
• M12: 5,905,825 km (0.112 R)
• M13: 7,205,681 km (0.059 R)
• M14: 7,516,096 km (0.097 R)
• M15: 8,633,144 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.7

Radius: 10

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.12 AU - 1.34 AU

Year: 925 Days

Day: 11.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,900,894 km

• M1: 124,465 km (0.062 R)
• M2: 451,337 km (0.103 R)
• M3: 830,867 km (0.073 R)
• M4: 1,295,966 km (0.073 R)
• M5: 1,969,007 km (0.083 R)
• M6: 2,739,735 km (0.1 R)
• M7: 3,211,268 km (0.114 R)
• M8: 3,543,375 km (0.079 R)
• M9: 4,237,060 km (0.037 R)
• M10: 5,388,814 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.6

Radius: 8.4

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.47 AU - 2.39 AU

Year: 1819 Days

Day: 12.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,900,894 km

• M1: 104,419 km (0.111 R)
• M2: 398,379 km (0.103 R)
• M3: 865,274 km (0.112 R)
• M4: 1,215,632 km (0.103 R)
• M5: 1,749,996 km (0.074 R)
• M6: 2,410,022 km (0.105 R)
• M7: 4,283,436 km (0.036 R)
• M8: 4,985,499 km (0.06 R)
• M9: 10,672,013 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.4

Radius: 11.1

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.62 AU - 4 AU

Year: 5044 Days

Day: 6.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,900,894 km

• M1: 138,528 km (0.114 R)
• M2: 695,929 km (0.039 R)
• M3: 1,206,058 km (0.098 R)
• M4: 1,615,807 km (0.097 R)
• M5: 3,201,843 km (0.073 R)
• M6: 4,520,399 km (0.118 R)
• M7: 5,301,898 km (0.1 R)
• M8: 5,690,254 km (0.061 R)
• M9: 8,343,223 km (0.084 R)
• M10: 9,061,293 km (0.091 R)
• M11: 10,093,817 km (0.046 R)
• M12: 11,426,734 km (0.026 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.6

Radius: 10.5

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 4.05 AU - 5.23 AU

Year: 6779 Days

Day: 14.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,900,894 km

• M1: 130,599 km (0.081 R)
• M2: 698,173 km (0.085 R)
• M3: 1,507,797 km (0.118 R)
• M4: 2,168,571 km (0.11 R)
• M5: 2,807,952 km (0.098 R)
• M6: 3,154,570 km (0.115 R)
• M7: 3,549,359 km (0.029 R)
• M8: 5,821,152 km (0.094 R)
• M9: 7,245,324 km (0.083 R)
• M10: 8,999,658 km (0.114 R)
• M11: 9,681,525 km (0.084 R)
• M12: 10,316,269 km (0.112 R)
• M13: 11,191,267 km (0.06 R)
• M14: 12,572,355 km (0.097 R)
• M15: 15,777,788 km (0.103 R)
• M16: 16,158,515 km (0.073 R)
• M17: 19,678,403 km (0.109 R)
• M18: 21,750,334 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 154

Radius: 5.6

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.67 AU - 9.77 AU

Year: 15984 Days

Day: 17.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 60,900,894 km

• M1: 69,862 km (0.098 R)
• M2: 360,082 km (0.049 R)
• M3: 647,460 km (0.099 R)
• M4: 1,243,158 km (0.115 R)
• M5: 1,988,006 km (0.053 R)
• M6: 2,183,979 km (0.107 R)
• M7: 2,577,272 km (0.052 R)
• M8: 3,276,343 km (0.099 R)
• M9: 4,094,793 km (0.072 R)
• M10: 4,332,504 km (0.089 R)
• M11: 5,101,437 km (0.1 R)
• M12: 6,723,527 km (0.096 R)
• M13: 8,364,017 km (0.116 R)
• M14: 10,254,036 km (0.095 R)
• M15: 11,609,244 km (0.062 R)
• M16: 12,687,096 km (0.027 R)
• M17: 14,792,387 km (0.091 R)
• M18: 17,530,178 km (0.114 R)
• M19: 18,157,890 km (0.095 R)
• M20: 20,974,070 km (0.106 R)
• M21: 24,843,270 km (0.109 R)
• M22: 25,723,803 km (0.118 R)
• M23: 31,042,456 km (0.099 R)
• M24: 31,550,191 km (0.069 R)
• M25: 34,604,830 km (0.061 R)
• M26: 35,150,712 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 426

Radius: 5.5

Gravity: 14.08 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 8.36 AU - 9.54 AU

Year: 18160 Days

Day: 23.1 Hours

Environment

Temp: -244 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,900,894 km

• M1: 68,516 km (0.058 R)
• M2: 592,408 km (0.099 R)
• M3: 847,771 km (0.04 R)
• M4: 1,727,407 km (0.087 R)
• M5: 2,099,307 km (0.07 R)
• M6: 3,567,012 km (0.09 R)
• M7: 4,479,409 km (0.099 R)
• M8: 10,866,490 km (0.103 R)
• M9: 16,391,887 km (0.117 R)
• M10: 16,620,772 km (0.072 R)
• M11: 17,637,140 km (0.11 R)
• M12: 20,578,234 km (0.092 R)
• M13: 24,719,253 km (0.062 R)
• M14: 33,609,555 km (0.092 R)
• M15: 38,761,257 km (0.099 R)
• M16: 43,388,618 km (0.067 R)
• M17: 50,918,029 km (0.103 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 14,034 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit