🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.8

Radius: 14.5

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.6 AU - 0.94 AU

Year: 443 Days

Day: 14.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,882,820 km

• M1: 186,848 km (0.114 R)
• M2: 725,400 km (0.114 R)
• M3: 1,374,804 km (0.083 R)
• M4: 2,523,417 km (0.113 R)
• M5: 3,008,563 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407

Radius: 14.5

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.92 AU - 1.04 AU

Year: 636 Days

Day: 8.3 Hours

Environment

Temp: -154 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,882,820 km

• M1: 180,265 km (0.071 R)
• M2: 649,554 km (0.074 R)
• M3: 1,104,481 km (0.118 R)
• M4: 1,726,509 km (0.103 R)
• M5: 2,964,431 km (0.047 R)
• M6: 3,535,147 km (0.104 R)
• M7: 4,179,017 km (0.038 R)
• M8: 5,073,462 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.1

Radius: 11.6

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.44 AU - 1.94 AU

Year: 1441 Days

Day: 9.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,882,820 km

• M1: 144,362 km (0.065 R)
• M2: 517,908 km (0.085 R)
• M3: 1,008,140 km (0.091 R)
• M4: 1,513,182 km (0.114 R)
• M5: 1,877,752 km (0.111 R)
• M6: 2,399,400 km (0.073 R)
• M7: 3,133,776 km (0.096 R)
• M8: 4,210,582 km (0.096 R)
• M9: 4,764,393 km (0.092 R)
• M10: 5,697,136 km (0.09 R)
• M11: 6,597,266 km (0.11 R)
• M12: 6,977,693 km (0.074 R)
• M13: 7,346,153 km (0.115 R)
• M14: 7,782,979 km (0.05 R)
• M15: 8,441,509 km (0.05 R)
• M16: 8,890,751 km (0.065 R)
• M17: 10,200,630 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.2

Radius: 12.8

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.1 AU - 3.16 AU

Year: 2798 Days

Day: 14.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,882,820 km

• M1: 159,172 km (0.057 R)
• M2: 633,547 km (0.082 R)
• M3: 1,522,158 km (0.108 R)
• M4: 1,956,740 km (0.116 R)
• M5: 2,541,069 km (0.089 R)
• M6: 2,978,793 km (0.073 R)
• M7: 4,309,765 km (0.112 R)
• M8: 4,728,489 km (0.097 R)
• M9: 5,556,065 km (0.103 R)
• M10: 6,401,742 km (0.105 R)
• M11: 7,901,909 km (0.11 R)
• M12: 11,211,164 km (0.084 R)
• M13: 11,815,240 km (0.069 R)
• M14: 12,600,778 km (0.115 R)
• M15: 13,504,798 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.3

Radius: 8.4

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.45 AU - 6.29 AU

Year: 8163 Days

Day: 6.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,882,820 km

• M1: 104,419 km (0.095 R)
• M2: 404,662 km (0.084 R)
• M3: 667,057 km (0.07 R)
• M4: 1,049,728 km (0.039 R)
• M5: 1,329,925 km (0.094 R)
• M6: 1,635,853 km (0.106 R)
• M7: 2,003,115 km (0.1 R)
• M8: 2,743,775 km (0.105 R)
• M9: 3,985,586 km (0.109 R)
• M10: 5,914,801 km (0.057 R)
• M11: 6,185,722 km (0.098 R)
• M12: 7,149,282 km (0.104 R)
• M13: 8,855,296 km (0.082 R)
• M14: 9,907,568 km (0.069 R)
• M15: 11,639,163 km (0.088 R)
• M16: 12,161,858 km (0.075 R)
• M17: 12,849,859 km (0.119 R)
• M18: 13,719,621 km (0.076 R)
• M19: 15,747,869 km (0.093 R)
• M20: 16,269,965 km (0.063 R)
• M21: 18,538,168 km (0.074 R)
• M22: 19,382,798 km (0.099 R)
• M23: 20,049,855 km (0.073 R)
• M24: 20,320,926 km (0.085 R)
• M25: 23,616,417 km (0.093 R)
• M26: 24,071,045 km (0.115 R)
• M27: 24,919,565 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.7

Radius: 4.3

Gravity: 22.32 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 7.72 AU - 10.88 AU

Year: 18605 Days

Day: 19.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,882,820 km

• M1: 98,136 km (0.111 R)
• M2: 232,325 km (0.069 R)
• M3: 759,808 km (0.112 R)
• M4: 953,238 km (0.113 R)
• M5: 1,092,064 km (0.11 R)
• M6: 2,153,910 km (0.114 R)
• M7: 3,127,643 km (0.075 R)
• M8: 4,458,465 km (0.096 R)
• M9: 6,048,092 km (0.119 R)
• M10: 10,400,942 km (0.043 R)
• M11: 10,570,286 km (0.098 R)
• M12: 15,943,393 km (0.066 R)
• M13: 16,548,666 km (0.084 R)
• M14: 22,418,887 km (0.083 R)
• M15: 41,750,522 km (0.052 R)
• M16: 50,874,346 km (0.103 R)
• M17: 58,706,244 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 280.8

Radius: 4.4

Gravity: 14.5 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 10.46 AU - 11.6 AU

Year: 24031 Days

Day: 24.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 63,882,820 km

• M1: 188,643 km (0.104 R)
• M2: 654,341 km (0.116 R)
• M3: 1,004,998 km (0.058 R)
• M4: 1,367,773 km (0.083 R)
• M5: 1,516,773 km (0.118 R)
• M6: 3,420,705 km (0.086 R)
• M7: 4,263,539 km (0.117 R)
• M8: 5,024,095 km (0.084 R)
• M9: 5,566,387 km (0.07 R)
• M10: 8,033,256 km (0.072 R)
• M11: 8,177,768 km (0.1 R)
• M12: 12,898,777 km (0.12 R)
• M13: 19,597,770 km (0.116 R)
• M14: 26,235,278 km (0.095 R)
• M15: 28,630,340 km (0.03 R)
• M16: 30,461,118 km (0.091 R)
• M17: 31,764,116 km (0.07 R)
• M18: 42,961,367 km (0.08 R)
• M19: 53,749,019 km (0.075 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: 190 - 16,343 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit