🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.7

Radius: 12.3

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.44 AU - 0.66 AU

Year: 272 Days

Day: 8.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,558,288 km

• M1: 153,936 km (0.116 R)
• M2: 773,870 km (0.093 R)
• M3: 1,242,710 km (0.103 R)
• M4: 1,661,584 km (0.088 R)
• M5: 2,065,049 km (0.086 R)
• M6: 2,468,066 km (0.069 R)
• M7: 3,046,561 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914

Radius: 9

Gravity: 11.28 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.49 AU - 0.69 AU

Year: 302 Days

Day: 8.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,558,288 km

• M1: 111,899 km (0.091 R)
• M2: 422,913 km (0.115 R)
• M3: 832,512 km (0.086 R)
• M4: 1,119,740 km (0.087 R)
• M5: 1,571,376 km (0.117 R)
• M6: 2,301,563 km (0.06 R)
• M7: 3,122,706 km (0.073 R)
• M8: 3,443,893 km (0.098 R)
• M9: 4,883,323 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.6

Radius: 9.9

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.72 AU - 0.78 AU

Year: 433 Days

Day: 11.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,558,288 km

• M1: 128,654 km (0.117 R)
• M2: 474,824 km (0.052 R)
• M3: 993,779 km (0.12 R)
• M4: 1,355,058 km (0.067 R)
• M5: 1,776,624 km (0.081 R)
• M6: 2,260,125 km (0.101 R)
• M7: 2,605,546 km (0.109 R)
• M8: 3,285,468 km (0.066 R)
• M9: 3,944,896 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.3

Radius: 13

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.81 AU - 1.03 AU

Year: 588 Days

Day: 8.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,558,288 km

• M1: 161,715 km (0.076 R)
• M2: 609,761 km (0.055 R)
• M3: 1,045,689 km (0.111 R)
• M4: 1,586,037 km (0.114 R)
• M5: 2,274,935 km (0.06 R)
• M6: 2,850,288 km (0.103 R)
• M7: 4,395,185 km (0.11 R)
• M8: 5,310,425 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.8

Radius: 10.1

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 3.74 AU - 4.44 AU

Year: 5516 Days

Day: 14.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 80,558,288 km

• M1: 149,149 km (0.117 R)
• M2: 469,887 km (0.059 R)
• M3: 801,545 km (0.114 R)
• M4: 1,194,389 km (0.101 R)
• M5: 2,746,019 km (0.094 R)
• M6: 3,702,099 km (0.094 R)
• M7: 4,507,833 km (0.091 R)
• M8: 5,667,665 km (0.088 R)
• M9: 7,206,578 km (0.093 R)
• M10: 10,665,431 km (0.111 R)
• M11: 12,104,861 km (0.092 R)
• M12: 17,081,384 km (0.04 R)
• M13: 17,427,853 km (0.106 R)
• M14: 19,355,421 km (0.117 R)
• M15: 19,731,959 km (0.077 R)
• M16: 21,487,789 km (0.055 R)
• M17: 23,487,015 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.6

Radius: 10.6

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.3 AU - 5.24 AU

Year: 5884 Days

Day: 14.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,558,288 km

• M1: 131,796 km (0.085 R)
• M2: 520,002 km (0.028 R)
• M3: 882,478 km (0.063 R)
• M4: 1,346,231 km (0.115 R)
• M5: 3,990,374 km (0.117 R)
• M6: 6,792,791 km (0.081 R)
• M7: 9,158,681 km (0.082 R)
• M8: 9,519,212 km (0.093 R)
• M9: 10,967,618 km (0.053 R)
• M10: 12,853,748 km (0.105 R)
• M11: 14,946,772 km (0.069 R)
• M12: 15,844,509 km (0.117 R)
• M13: 21,017,603 km (0.107 R)
• M14: 22,287,390 km (0.027 R)
• M15: 23,384,092 km (0.084 R)
• M16: 23,832,586 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 818.9

Radius: 5.3

Gravity: 29.15 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.26 AU - 8.16 AU

Year: 14276 Days

Day: 17.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,558,288 km

• M1: 65,973 km (0.071 R)
• M2: 246,537 km (0.07 R)
• M3: 733,478 km (0.087 R)
• M4: 967,749 km (0.083 R)
• M5: 1,211,444 km (0.112 R)
• M6: 2,466,719 km (0.078 R)
• M7: 4,604,922 km (0.032 R)
• M8: 4,977,271 km (0.061 R)
• M9: 6,135,308 km (0.087 R)
• M10: 13,844,834 km (0.093 R)
• M11: 14,907,877 km (0.119 R)
• M12: 21,603,129 km (0.116 R)
• M13: 26,388,167 km (0.075 R)
• M14: 28,799,535 km (0.095 R)
• M15: 31,353,919 km (0.104 R)
• M16: 34,690,250 km (0.089 R)
• M17: 39,916,003 km (0.063 R)
• M18: 40,763,774 km (0.096 R)
• M19: 59,054,507 km (0.043 R)
• M20: 62,207,283 km (0.028 R)
• M21: 63,346,321 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.3

Radius: 4.1

Gravity: 41.6 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 9.95 AU - 10.35 AU

Year: 21564 Days

Day: 15.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 80,558,288 km

• M1: 51,013 km (0.079 R)
• M2: 208,240 km (0.105 R)
• M3: 528,380 km (0.04 R)
• M4: 1,549,236 km (0.114 R)
• M5: 1,762,113 km (0.118 R)
• M6: 2,814,684 km (0.109 R)
• M7: 2,944,236 km (0.119 R)
• M8: 5,164,866 km (0.052 R)
• M9: 6,815,829 km (0.105 R)
• M10: 11,240,784 km (0.094 R)
• M11: 11,436,458 km (0.083 R)
• M12: 11,634,226 km (0.05 R)
• M13: 17,009,427 km (0.11 R)
• M14: 18,414,600 km (0.088 R)
• M15: 21,056,648 km (0.11 R)
• M16: 21,855,651 km (0.034 R)
• M17: 24,264,625 km (0.076 R)
• M18: 27,194,350 km (0.053 R)
• M19: 29,726,144 km (0.115 R)
• M20: 33,474,468 km (0.087 R)
• M21: 40,655,465 km (0.117 R)
• M22: 42,205,150 km (0.115 R)
• M23: 43,472,842 km (0.108 R)
• M24: 48,281,067 km (0.111 R)
• M25: 48,452,955 km (0.107 R)
• M26: 51,975,985 km (0.043 R)
• M27: 54,541,289 km (0.095 R)
• M28: 55,477,473 km (0.105 R)
• M29: 59,132,897 km (0.064 R)
• M30: 59,329,618 km (0.12 R)
• M31: 61,320,915 km (0.089 R)
• M32: 61,522,424 km (0.089 R)
• M33: 69,075,919 km (0.105 R)
• M34: 72,622,586 km (0.109 R)
• M35: 74,669,982 km (0.119 R)
• M36: 76,288,631 km (0.059 R)
• M37: 77,694,701 km (0.072 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 20,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit