🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.4

Radius: 10.4

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.67 AU - 0.91 AU

Year: 476 Days

Day: 10.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 116.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,526,178 km

• M1: 129,402 km (0.047 R)
• M2: 460,462 km (0.062 R)
• M3: 817,702 km (0.093 R)
• M4: 1,174,642 km (0.086 R)
• M5: 2,203,726 km (0.118 R)
• M6: 2,876,468 km (0.088 R)
• M7: 3,506,574 km (0.069 R)
• M8: 4,546,130 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.1

Radius: 13.9

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.19 AU - 1.51 AU

Year: 1064 Days

Day: 12.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 32,526,178 km

• M1: 172,935 km (0.092 R)
• M2: 1,051,075 km (0.059 R)
• M3: 1,691,653 km (0.116 R)
• M4: 2,482,277 km (0.105 R)
• M5: 3,927,842 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.1

Radius: 12.6

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.58 AU - 1.82 AU

Year: 1503 Days

Day: 11.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 32,526,178 km

• M1: 156,629 km (0.059 R)
• M2: 600,486 km (0.057 R)
• M3: 1,478,326 km (0.076 R)
• M4: 1,968,409 km (0.09 R)
• M5: 2,682,140 km (0.109 R)
• M6: 4,550,767 km (0.103 R)
• M7: 5,058,802 km (0.103 R)
• M8: 5,496,675 km (0.103 R)
• M9: 6,666,680 km (0.086 R)
• M10: 8,916,631 km (0.092 R)
• M11: 10,361,747 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.3

Radius: 10

Gravity: 6 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.02 AU - 3.52 AU

Year: 4011 Days

Day: 13.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,526,178 km

• M1: 124,316 km (0.057 R)
• M2: 623,823 km (0.073 R)
• M3: 1,179,430 km (0.111 R)
• M4: 1,773,333 km (0.084 R)
• M5: 2,181,586 km (0.118 R)
• M6: 3,397,667 km (0.103 R)
• M7: 3,716,161 km (0.113 R)
• M8: 5,042,944 km (0.077 R)
• M9: 6,097,460 km (0.092 R)
• M10: 6,600,707 km (0.087 R)
• M11: 7,195,807 km (0.055 R)
• M12: 7,963,543 km (0.066 R)
• M13: 8,314,051 km (0.109 R)
• M14: 12,408,994 km (0.097 R)
• M15: 13,960,922 km (0.092 R)
• M16: 21,338,640 km (0.116 R)
• M17: 21,675,834 km (0.104 R)
• M18: 22,084,984 km (0.072 R)
• M19: 23,414,909 km (0.114 R)
• M20: 23,990,562 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.8

Radius: 13.3

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.81 AU - 3.97 AU

Year: 4233 Days

Day: 13.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,526,178 km

• M1: 165,455 km (0.071 R)
• M2: 857,794 km (0.114 R)
• M3: 1,488,349 km (0.081 R)
• M4: 2,285,556 km (0.093 R)
• M5: 2,700,242 km (0.111 R)
• M6: 4,583,230 km (0.109 R)
• M7: 6,659,200 km (0.116 R)
• M8: 8,702,108 km (0.08 R)
• M9: 9,967,257 km (0.092 R)
• M10: 10,665,281 km (0.077 R)
• M11: 14,916,852 km (0.118 R)
• M12: 15,504,024 km (0.092 R)
• M13: 16,329,505 km (0.071 R)
• M14: 16,896,032 km (0.102 R)
• M15: 22,185,065 km (0.119 R)
• M16: 23,662,045 km (0.116 R)
• M17: 24,830,554 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.6

Radius: 9.8

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.6 AU - 4.1 AU

Year: 5124 Days

Day: 12.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,526,178 km

• M1: 121,922 km (0.049 R)
• M2: 940,671 km (0.108 R)
• M3: 1,258,417 km (0.106 R)
• M4: 1,624,782 km (0.119 R)
• M5: 1,977,385 km (0.108 R)
• M6: 2,478,238 km (0.119 R)
• M7: 2,876,019 km (0.112 R)
• M8: 3,376,873 km (0.087 R)
• M9: 5,072,265 km (0.078 R)
• M10: 6,044,502 km (0.117 R)
• M11: 6,934,609 km (0.04 R)
• M12: 8,855,596 km (0.06 R)
• M13: 10,478,882 km (0.073 R)
• M14: 11,015,938 km (0.072 R)
• M15: 15,475,301 km (0.039 R)
• M16: 18,453,197 km (0.06 R)
• M17: 20,315,989 km (0.098 R)
• M18: 24,802,429 km (0.117 R)
• M19: 25,999,063 km (0.096 R)
• M20: 26,652,656 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.5

Radius: 12.8

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.05 AU - 6.73 AU

Year: 8487 Days

Day: 13.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 32,526,178 km

• M1: 159,172 km (0.109 R)
• M2: 560,693 km (0.066 R)
• M3: 978,520 km (0.104 R)
• M4: 1,991,297 km (0.112 R)
• M5: 2,444,579 km (0.084 R)
• M6: 3,053,741 km (0.113 R)
• M7: 3,490,717 km (0.104 R)
• M8: 5,029,630 km (0.073 R)
• M9: 7,663,450 km (0.069 R)
• M10: 9,395,793 km (0.099 R)
• M11: 11,268,460 km (0.104 R)
• M12: 11,981,892 km (0.093 R)
• M13: 22,535,722 km (0.046 R)
• M14: 26,048,729 km (0.12 R)
• M15: 26,715,786 km (0.118 R)
• M16: 34,367,119 km (0.096 R)
• M17: 37,051,204 km (0.041 R)
• M18: 37,531,862 km (0.089 R)
• M19: 43,496,030 km (0.096 R)
• M20: 43,896,802 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138

Radius: 6.1

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 6.3 AU - 7.62 AU

Year: 12454 Days

Day: 21.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 32,526,178 km

• M1: 75,846 km (0.11 R)
• M2: 811,419 km (0.111 R)
• M3: 1,306,737 km (0.095 R)
• M4: 1,746,406 km (0.108 R)
• M5: 2,045,601 km (0.065 R)
• M6: 2,296,028 km (0.095 R)
• M7: 2,531,944 km (0.111 R)
• M8: 2,821,266 km (0.086 R)
• M9: 4,329,961 km (0.072 R)
• M10: 5,866,780 km (0.099 R)
• M11: 6,842,607 km (0.078 R)
• M12: 7,922,554 km (0.06 R)
• M13: 9,748,545 km (0.09 R)
• M14: 10,643,589 km (0.094 R)
• M15: 11,987,128 km (0.072 R)
• M16: 12,238,452 km (0.058 R)
• M17: 15,475,152 km (0.084 R)
• M18: 16,504,235 km (0.11 R)
• M19: 17,837,302 km (0.102 R)
• M20: 18,430,009 km (0.107 R)
• M21: 18,630,470 km (0.094 R)
• M22: 20,788,120 km (0.098 R)
• M23: 22,721,822 km (0.111 R)
• M24: 23,184,379 km (0.074 R)
• M25: 27,287,400 km (0.062 R)
• M26: 27,897,909 km (0.059 R)
• M27: 32,235,050 km (0.102 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 15,039 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit