🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.44 AU - 0.68 AU

Year: 275 Days

Day: 38.9 Hours

Environment

Temp: -114 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 25,934,395 km

• M1: 41,439 km (0.069 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.65 AU - 0.67 AU

Year: 352 Days

Day: 25.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.1

Radius: 12.4

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.08 AU - 1.12 AU

Year: 757 Days

Day: 10.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,934,395 km

• M1: 154,235 km (0.057 R)
• M2: 874,400 km (0.078 R)
• M3: 1,468,453 km (0.083 R)
• M4: 1,980,377 km (0.115 R)
• M5: 2,399,699 km (0.114 R)
• M6: 3,309,853 km (0.074 R)
• M7: 3,717,657 km (0.102 R)
• M8: 4,187,992 km (0.119 R)
• M9: 4,729,088 km (0.079 R)
• M10: 5,215,431 km (0.116 R)
• M11: 6,308,093 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.2

Radius: 8.4

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.42 AU - 2.76 AU

Year: 2734 Days

Day: 12.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,934,395 km

• M1: 104,569 km (0.107 R)
• M2: 386,561 km (0.062 R)
• M3: 988,094 km (0.101 R)
• M4: 1,452,745 km (0.072 R)
• M5: 2,082,402 km (0.11 R)
• M6: 2,389,228 km (0.074 R)
• M7: 3,496,701 km (0.069 R)
• M8: 4,621,826 km (0.115 R)
• M9: 6,346,540 km (0.073 R)
• M10: 6,909,327 km (0.109 R)
• M11: 7,535,843 km (0.108 R)
• M12: 8,330,208 km (0.106 R)
• M13: 9,936,291 km (0.118 R)
• M14: 11,614,928 km (0.112 R)
• M15: 12,073,147 km (0.106 R)
• M16: 16,441,404 km (0.111 R)
• M17: 16,966,194 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303

Radius: 13.1

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.26 AU - 3.64 AU

Year: 4204 Days

Day: 10.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 151.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,934,395 km

• M1: 163,062 km (0.059 R)
• M2: 711,936 km (0.11 R)
• M3: 1,824,944 km (0.089 R)
• M4: 2,397,455 km (0.098 R)
• M5: 2,891,876 km (0.075 R)
• M6: 4,008,026 km (0.107 R)
• M7: 5,174,590 km (0.106 R)
• M8: 6,900,351 km (0.089 R)
• M9: 8,137,526 km (0.047 R)
• M10: 10,149,318 km (0.097 R)
• M11: 10,888,182 km (0.071 R)
• M12: 14,448,013 km (0.085 R)
• M13: 18,095,059 km (0.076 R)
• M14: 18,719,182 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.5

Radius: 9.9

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.66 AU - 4.02 AU

Year: 4936 Days

Day: 12.2 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,934,395 km

• M1: 123,119 km (0.098 R)
• M2: 999,463 km (0.111 R)
• M3: 1,460,823 km (0.047 R)
• M4: 2,205,073 km (0.117 R)
• M5: 5,111,011 km (0.117 R)
• M6: 5,462,566 km (0.052 R)
• M7: 6,710,811 km (0.057 R)
• M8: 8,176,272 km (0.12 R)
• M9: 9,042,443 km (0.059 R)
• M10: 10,780,322 km (0.096 R)
• M11: 15,345,899 km (0.061 R)
• M12: 17,742,307 km (0.078 R)
• M13: 24,766,227 km (0.084 R)
• M14: 26,093,010 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.9

Radius: 12.9

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.22 AU - 4.76 AU

Year: 5228 Days

Day: 15 Hours

Environment

Temp: -201 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,934,395 km

• M1: 165,006 km (0.119 R)
• M2: 645,515 km (0.072 R)
• M3: 1,237,324 km (0.115 R)
• M4: 2,296,627 km (0.115 R)
• M5: 2,922,694 km (0.11 R)
• M6: 3,660,510 km (0.119 R)
• M7: 4,686,752 km (0.119 R)
• M8: 5,981,970 km (0.118 R)
• M9: 9,660,731 km (0.113 R)
• M10: 10,732,151 km (0.09 R)
• M11: 11,296,883 km (0.043 R)
• M12: 12,111,444 km (0.117 R)
• M13: 14,632,916 km (0.037 R)
• M14: 16,213,417 km (0.071 R)
• M15: 17,664,816 km (0.097 R)
• M16: 19,201,335 km (0.08 R)
• M17: 20,361,467 km (0.068 R)
• M18: 23,321,710 km (0.065 R)
• M19: 23,902,598 km (0.058 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: 528 - 18,498 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit