🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.97 AU - 1.01 AU

Year: 345 Days

Day: 41.5 Hours

Environment

Temp: 134 °C

Axial Tilt: 44.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.97 AU - 1.53 AU

Year: 489 Days

Day: 28.4 Hours

Environment

Temp: 23 °C

Axial Tilt: 2.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 50,758,734 km

• M1: 37,998 km (0.118 R)
• M2: 954,285 km (0.028 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.06 AU - 1.52 AU

Year: 513 Days

Day: 30.4 Hours

Environment

Temp: 18 °C

Axial Tilt: 10.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.89 AU - 3.15 AU

Year: 1836 Days

Day: 40.9 Hours

Environment

Temp: -101 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.27 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.4

Radius: 13.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.32 AU - 8.72 AU

Year: 7214 Days

Day: 11.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,758,734 km

• M1: 166,802 km (0.072 R)
• M2: 618,138 km (0.04 R)
• M3: 1,148,164 km (0.116 R)
• M4: 2,309,791 km (0.037 R)
• M5: 2,727,169 km (0.064 R)
• M6: 3,363,409 km (0.119 R)
• M7: 5,047,432 km (0.078 R)
• M8: 5,605,731 km (0.119 R)
• M9: 6,237,782 km (0.115 R)
• M10: 14,950,961 km (0.118 R)
• M11: 19,010,299 km (0.07 R)
• M12: 22,246,999 km (0.115 R)
• M13: 24,653,879 km (0.047 R)
• M14: 29,791,070 km (0.118 R)
• M15: 30,455,733 km (0.1 R)
• M16: 31,227,359 km (0.119 R)
• M17: 32,809,805 km (0.087 R)
• M18: 34,653,449 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.2

Radius: 12.1

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 9.57 AU - 15.13 AU

Year: 15184 Days

Day: 9.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 50,758,734 km

• M1: 150,944 km (0.115 R)
• M2: 684,410 km (0.117 R)
• M3: 1,358,349 km (0.069 R)
• M4: 1,893,161 km (0.096 R)
• M5: 2,325,648 km (0.111 R)
• M6: 2,868,838 km (0.117 R)
• M7: 3,953,872 km (0.101 R)
• M8: 4,700,664 km (0.047 R)
• M9: 5,226,501 km (0.115 R)
• M10: 5,975,986 km (0.077 R)
• M11: 7,733,761 km (0.07 R)
• M12: 8,421,463 km (0.117 R)
• M13: 9,000,556 km (0.104 R)
• M14: 9,605,978 km (0.089 R)
• M15: 11,296,734 km (0.082 R)
• M16: 12,365,012 km (0.106 R)
• M17: 15,758,191 km (0.114 R)
• M18: 18,578,111 km (0.057 R)
• M19: 20,924,254 km (0.042 R)
• M20: 23,555,980 km (0.106 R)
• M21: 26,605,233 km (0.096 R)
• M22: 27,432,958 km (0.117 R)
• M23: 32,412,323 km (0.108 R)
• M24: 37,061,077 km (0.058 R)
• M25: 42,136,335 km (0.102 R)
• M26: 46,754,720 km (0.047 R)
• M27: 47,354,757 km (0.081 R)
• M28: 51,699,977 km (0.103 R)
• M29: 55,128,162 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.4

Radius: 13.7

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 9.97 AU - 15.85 AU

Year: 16228 Days

Day: 8.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,758,734 km

• M1: 170,691 km (0.05 R)
• M2: 750,832 km (0.12 R)
• M3: 1,746,106 km (0.034 R)
• M4: 2,547,801 km (0.097 R)
• M5: 4,540,744 km (0.067 R)
• M6: 5,858,701 km (0.077 R)
• M7: 6,350,729 km (0.077 R)
• M8: 7,703,094 km (0.083 R)
• M9: 13,395,592 km (0.094 R)
• M10: 16,882,718 km (0.117 R)
• M11: 19,458,345 km (0.113 R)
• M12: 20,003,330 km (0.081 R)
• M13: 21,314,705 km (0.072 R)
• M14: 25,055,998 km (0.043 R)
• M15: 26,357,948 km (0.083 R)
• M16: 27,363,545 km (0.081 R)
• M17: 31,519,075 km (0.088 R)
• M18: 36,350,787 km (0.074 R)
• M19: 45,200,398 km (0.066 R)
• M20: 52,534,284 km (0.105 R)
• M21: 53,592,091 km (0.035 R)
• M22: 57,406,537 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 786.8

Radius: 3.4

Gravity: 68.06 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 14.09 AU - 14.15 AU

Year: 18562 Days

Day: 23.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 112.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,758,734 km

• M1: 43,383 km (0.03 R)
• M2: 154,535 km (0.061 R)
• M3: 268,528 km (0.08 R)
• M4: 827,276 km (0.112 R)
• M5: 976,276 km (0.086 R)
• M6: 1,283,999 km (0.076 R)
• M7: 1,550,432 km (0.052 R)
• M8: 1,833,621 km (0.039 R)
• M9: 1,948,363 km (0.072 R)
• M10: 2,548,699 km (0.089 R)
• M11: 5,818,310 km (0.025 R)
• M12: 5,941,878 km (0.05 R)
• M13: 7,612,138 km (0.098 R)
• M14: 9,233,031 km (0.094 R)
• M15: 9,917,740 km (0.086 R)
• M16: 15,368,937 km (0.12 R)
• M17: 16,574,247 km (0.063 R)
• M18: 18,542,357 km (0.104 R)
• M19: 19,353,177 km (0.089 R)
• M20: 22,731,247 km (0.113 R)
• M21: 25,922,469 km (0.117 R)
• M22: 29,158,719 km (0.086 R)
• M23: 37,120,019 km (0.117 R)
• M24: 49,598,127 km (0.086 R)
• M25: 55,467,749 km (0.068 R)
• M26: 57,901,706 km (0.069 R)
• M27: 71,581,235 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.8

Radius: 7.3

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 15.78 AU - 18.26 AU

Year: 24565 Days

Day: 15.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,758,734 km

• M1: 97,837 km (0.117 R)
• M2: 560,094 km (0.085 R)
• M3: 1,458,878 km (0.045 R)
• M4: 3,357,874 km (0.07 R)
• M5: 3,817,887 km (0.088 R)
• M6: 4,119,177 km (0.115 R)
• M7: 9,424,815 km (0.116 R)
• M8: 9,773,528 km (0.058 R)
• M9: 12,520,295 km (0.084 R)
• M10: 12,942,011 km (0.113 R)
• M11: 14,005,502 km (0.098 R)
• M12: 14,991,203 km (0.12 R)
• M13: 15,952,219 km (0.111 R)
• M14: 17,321,339 km (0.081 R)
• M15: 18,456,189 km (0.09 R)
• M16: 24,507,123 km (0.095 R)
• M17: 25,357,737 km (0.054 R)
• M18: 28,129,785 km (0.084 R)
• M19: 28,749,120 km (0.112 R)
• M20: 31,427,371 km (0.1 R)
• M21: 42,174,781 km (0.113 R)

Kuiper Belt

Range: 31.4 - 53.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 17,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit