🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.2

Radius: 11.5

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.95 AU - 1.13 AU

Year: 746 Days

Day: 11.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,773,484 km

• M1: 148,700 km (0.09 R)
• M2: 875,596 km (0.096 R)
• M3: 1,443,470 km (0.101 R)
• M4: 1,841,699 km (0.081 R)
• M5: 2,651,622 km (0.081 R)
• M6: 3,594,238 km (0.062 R)
• M7: 4,093,596 km (0.054 R)
• M8: 5,083,635 km (0.043 R)
• M9: 5,556,514 km (0.035 R)
• M10: 5,985,112 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.9

Radius: 12

Gravity: 5.57 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.26 AU - 1.54 AU

Year: 1164 Days

Day: 5.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,773,484 km

• M1: 149,299 km (0.103 R)
• M2: 557,701 km (0.047 R)
• M3: 2,410,919 km (0.055 R)
• M4: 2,930,024 km (0.083 R)
• M5: 3,585,113 km (0.038 R)
• M6: 4,142,963 km (0.112 R)
• M7: 4,664,162 km (0.106 R)
• M8: 5,188,353 km (0.04 R)
• M9: 6,401,742 km (0.085 R)
• M10: 8,339,782 km (0.064 R)
• M11: 9,564,989 km (0.102 R)
• M12: 11,762,731 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.9

Radius: 14.3

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.38 AU - 1.42 AU

Year: 1164 Days

Day: 6.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 92,773,484 km

• M1: 177,872 km (0.089 R)
• M2: 641,924 km (0.112 R)
• M3: 1,103,284 km (0.118 R)
• M4: 1,873,713 km (0.118 R)
• M5: 2,628,734 km (0.098 R)
• M6: 3,987,681 km (0.074 R)
• M7: 5,050,424 km (0.07 R)
• M8: 5,628,171 km (0.116 R)
• M9: 6,339,210 km (0.117 R)
• M10: 7,889,193 km (0.111 R)
• M11: 8,476,664 km (0.113 R)
• M12: 10,074,220 km (0.113 R)
• M13: 10,734,395 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.5

Radius: 12.4

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.07 AU - 1.77 AU

Year: 1189 Days

Day: 5.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,773,484 km

• M1: 154,535 km (0.087 R)
• M2: 545,135 km (0.103 R)
• M3: 1,161,927 km (0.047 R)
• M4: 1,758,673 km (0.095 R)
• M5: 2,446,524 km (0.096 R)
• M6: 2,848,343 km (0.112 R)
• M7: 3,386,447 km (0.06 R)
• M8: 4,456,371 km (0.117 R)
• M9: 5,274,971 km (0.094 R)
• M10: 5,758,770 km (0.075 R)
• M11: 6,945,829 km (0.081 R)
• M12: 7,714,014 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.5

Radius: 10.6

Gravity: 8.17 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.4 AU - 1.44 AU

Year: 1189 Days

Day: 11 Hours

Environment

Temp: -184 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 92,773,484 km

• M1: 131,796 km (0.096 R)
• M2: 562,189 km (0.077 R)
• M3: 1,049,279 km (0.115 R)
• M4: 1,638,545 km (0.086 R)
• M5: 2,318,169 km (0.107 R)
• M6: 2,651,772 km (0.095 R)
• M7: 3,191,072 km (0.101 R)
• M8: 3,526,770 km (0.089 R)
• M9: 4,621,976 km (0.108 R)
• M10: 5,073,911 km (0.1 R)
• M11: 5,862,890 km (0.107 R)
• M12: 6,536,978 km (0.1 R)
• M13: 7,444,738 km (0.073 R)
• M14: 8,578,540 km (0.108 R)
• M15: 10,910,921 km (0.037 R)
• M16: 11,966,932 km (0.117 R)
• M17: 12,707,890 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.1

Radius: 8.3

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.63 AU - 4.09 AU

Year: 4329 Days

Day: 9.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 92,773,484 km

• M1: 103,223 km (0.031 R)
• M2: 428,000 km (0.118 R)
• M3: 711,039 km (0.072 R)
• M4: 1,009,337 km (0.091 R)
• M5: 1,318,556 km (0.071 R)
• M6: 1,856,510 km (0.084 R)
• M7: 2,221,229 km (0.099 R)
• M8: 3,548,312 km (0.094 R)
• M9: 4,686,153 km (0.114 R)
• M10: 7,151,077 km (0.097 R)
• M11: 8,454,075 km (0.099 R)
• M12: 9,743,758 km (0.033 R)
• M13: 10,201,378 km (0.114 R)
• M14: 10,716,892 km (0.088 R)
• M15: 11,707,230 km (0.08 R)
• M16: 12,659,121 km (0.11 R)
• M17: 13,355,649 km (0.077 R)
• M18: 14,554,975 km (0.043 R)
• M19: 15,598,570 km (0.115 R)
• M20: 16,515,455 km (0.094 R)
• M21: 17,046,827 km (0.064 R)
• M22: 17,528,532 km (0.063 R)
• M23: 19,092,727 km (0.109 R)
• M24: 24,875,433 km (0.111 R)
• M25: 26,927,766 km (0.096 R)
• M26: 27,335,121 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 490.2

Radius: 7.2

Gravity: 9.46 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 5.35 AU - 8.45 AU

Year: 12740 Days

Day: 17 Hours

Environment

Temp: -236 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 92,773,484 km

• M1: 90,507 km (0.092 R)
• M2: 315,502 km (0.064 R)
• M3: 575,653 km (0.098 R)
• M4: 1,434,045 km (0.063 R)
• M5: 1,832,125 km (0.05 R)
• M6: 2,083,898 km (0.081 R)
• M7: 6,959,742 km (0.067 R)
• M8: 7,451,171 km (0.083 R)
• M9: 9,502,606 km (0.094 R)
• M10: 11,789,060 km (0.067 R)
• M11: 13,336,501 km (0.066 R)
• M12: 18,941,185 km (0.108 R)
• M13: 19,817,230 km (0.069 R)
• M14: 21,649,953 km (0.086 R)
• M15: 29,582,530 km (0.112 R)
• M16: 33,900,373 km (0.103 R)
• M17: 34,132,400 km (0.091 R)
• M18: 34,717,327 km (0.055 R)
• M19: 42,132,744 km (0.089 R)
• M20: 43,077,006 km (0.062 R)
• M21: 50,235,863 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.8

Radius: 4.7

Gravity: 43.13 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 7.74 AU - 12.62 AU

Year: 22831 Days

Day: 16 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 92,773,484 km

• M1: 58,493 km (0.118 R)
• M2: 226,790 km (0.083 R)
• M3: 384,018 km (0.076 R)
• M4: 767,287 km (0.066 R)
• M5: 1,405,322 km (0.072 R)
• M6: 3,211,866 km (0.066 R)
• M7: 5,105,925 km (0.095 R)
• M8: 7,327,603 km (0.083 R)
• M9: 10,120,894 km (0.072 R)
• M10: 11,509,312 km (0.116 R)
• M11: 16,166,892 km (0.118 R)
• M12: 17,869,017 km (0.067 R)
• M13: 21,730,138 km (0.097 R)
• M14: 23,574,380 km (0.11 R)
• M15: 35,390,069 km (0.117 R)
• M16: 37,476,660 km (0.114 R)
• M17: 39,960,134 km (0.098 R)
• M18: 40,278,030 km (0.086 R)
• M19: 40,758,089 km (0.074 R)
• M20: 78,053,287 km (0.09 R)
• M21: 84,677,032 km (0.039 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 18,805 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit