🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.01

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.53 AU - 0.69 AU

Year: 303 Days

Day: 25 Hours

Environment

Temp: -129 °C

Axial Tilt: 21.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.5

Radius: 11.1

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.07 AU - 1.13 AU

Year: 734 Days

Day: 7.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,917,029 km

• M1: 138,079 km (0.07 R)
• M2: 519,254 km (0.11 R)
• M3: 936,183 km (0.041 R)
• M4: 1,335,909 km (0.108 R)
• M5: 1,708,557 km (0.115 R)
• M6: 2,357,214 km (0.092 R)
• M7: 2,820,967 km (0.089 R)
• M8: 4,246,036 km (0.119 R)
• M9: 5,267,640 km (0.086 R)
• M10: 5,755,329 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.8

Radius: 13.6

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.26 AU - 1.36 AU

Year: 953 Days

Day: 9.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,917,029 km

• M1: 169,195 km (0.069 R)
• M2: 675,434 km (0.108 R)
• M3: 1,218,923 km (0.105 R)
• M4: 1,791,135 km (0.07 R)
• M5: 3,162,948 km (0.075 R)
• M6: 4,400,870 km (0.092 R)
• M7: 6,131,418 km (0.09 R)
• M8: 6,833,481 km (0.094 R)
• M9: 7,633,231 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.5

Radius: 11.1

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.54 AU - 4.18 AU

Year: 3916 Days

Day: 13.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,917,029 km

• M1: 138,079 km (0.079 R)
• M2: 530,923 km (0.075 R)
• M3: 1,078,900 km (0.048 R)
• M4: 1,450,950 km (0.106 R)
• M5: 1,920,986 km (0.103 R)
• M6: 2,817,526 km (0.07 R)
• M7: 3,218,897 km (0.114 R)
• M8: 5,951,003 km (0.053 R)
• M9: 7,749,319 km (0.115 R)
• M10: 9,165,562 km (0.086 R)
• M11: 11,923,848 km (0.048 R)
• M12: 13,306,731 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.6

Radius: 12.9

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.7 AU - 4.42 AU

Year: 4271 Days

Day: 9.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,917,029 km

• M1: 160,668 km (0.082 R)
• M2: 704,008 km (0.031 R)
• M3: 2,470,010 km (0.034 R)
• M4: 3,241,786 km (0.089 R)
• M5: 5,409,609 km (0.116 R)
• M6: 6,736,991 km (0.099 R)
• M7: 9,225,102 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832

Radius: 14.2

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.82 AU - 3.98 AU

Year: 4897 Days

Day: 13.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,917,029 km

• M1: 176,675 km (0.087 R)
• M2: 641,326 km (0.119 R)
• M3: 1,192,594 km (0.045 R)
• M4: 1,842,896 km (0.105 R)
• M5: 2,354,222 km (0.091 R)
• M6: 3,670,982 km (0.054 R)
• M7: 4,149,995 km (0.03 R)
• M8: 5,014,969 km (0.063 R)
• M9: 6,183,478 km (0.111 R)
• M10: 6,665,932 km (0.094 R)
• M11: 7,173,517 km (0.062 R)
• M12: 7,743,485 km (0.032 R)
• M13: 9,219,268 km (0.056 R)
• M14: 10,421,586 km (0.084 R)
• M15: 11,677,610 km (0.075 R)
• M16: 12,317,440 km (0.082 R)
• M17: 16,968,438 km (0.082 R)
• M18: 21,271,471 km (0.069 R)
• M19: 22,152,453 km (0.093 R)
• M20: 22,601,845 km (0.106 R)
• M21: 24,540,783 km (0.083 R)
• M22: 29,552,611 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.8

Radius: 14.4

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.45 AU - 4.65 AU

Year: 6171 Days

Day: 8.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 176.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,917,029 km

• M1: 179,069 km (0.088 R)
• M2: 846,425 km (0.12 R)
• M3: 1,561,353 km (0.038 R)
• M4: 2,050,837 km (0.097 R)
• M5: 2,626,490 km (0.11 R)
• M6: 3,519,589 km (0.096 R)
• M7: 3,990,673 km (0.074 R)
• M8: 4,685,256 km (0.093 R)
• M9: 5,315,063 km (0.091 R)
• M10: 6,094,767 km (0.106 R)
• M11: 6,578,417 km (0.039 R)
• M12: 7,478,248 km (0.112 R)
• M13: 9,955,589 km (0.062 R)
• M14: 10,860,357 km (0.061 R)
• M15: 11,574,238 km (0.078 R)
• M16: 13,523,797 km (0.112 R)
• M17: 14,126,976 km (0.083 R)
• M18: 16,105,707 km (0.083 R)
• M19: 17,161,569 km (0.114 R)
• M20: 17,739,016 km (0.068 R)
• M21: 19,000,725 km (0.114 R)
• M22: 20,535,599 km (0.066 R)
• M23: 21,333,255 km (0.107 R)
• M24: 25,387,207 km (0.074 R)
• M25: 26,902,783 km (0.11 R)
• M26: 28,122,605 km (0.11 R)
• M27: 29,561,437 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.2

Radius: 5.3

Gravity: 29.38 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 7.13 AU - 8.85 AU

Year: 14360 Days

Day: 18.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 64,917,029 km

• M1: 65,973 km (0.069 R)
• M2: 240,105 km (0.06 R)
• M3: 413,489 km (0.076 R)
• M4: 624,571 km (0.117 R)
• M5: 1,031,328 km (0.116 R)
• M6: 1,474,287 km (0.104 R)
• M7: 2,054,577 km (0.119 R)
• M8: 2,614,821 km (0.078 R)
• M9: 3,091,590 km (0.103 R)
• M10: 3,271,556 km (0.112 R)
• M11: 4,802,241 km (0.086 R)
• M12: 5,552,624 km (0.106 R)
• M13: 5,858,103 km (0.108 R)
• M14: 6,337,115 km (0.105 R)
• M15: 6,502,571 km (0.083 R)
• M16: 7,193,264 km (0.042 R)
• M17: 8,618,034 km (0.069 R)
• M18: 10,448,813 km (0.059 R)
• M19: 12,012,859 km (0.105 R)
• M20: 15,822,817 km (0.108 R)
• M21: 19,833,835 km (0.071 R)
• M22: 21,555,856 km (0.109 R)
• M23: 24,473,763 km (0.085 R)
• M24: 25,816,105 km (0.111 R)
• M25: 27,098,009 km (0.09 R)
• M26: 27,315,674 km (0.077 R)
• M27: 31,078,509 km (0.053 R)
• M28: 33,145,353 km (0.059 R)
• M29: 36,084,951 km (0.105 R)
• M30: 51,559,205 km (0.047 R)
• M31: 52,229,404 km (0.096 R)
• M32: 60,173,799 km (0.09 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 16,732 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit