🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154.6

Radius: 14.9

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.49 AU - 0.77 AU

Year: 351 Days

Day: 6.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,833,790 km

• M1: 185,352 km (0.06 R)
• M2: 670,198 km (0.09 R)
• M3: 1,408,464 km (0.103 R)
• M4: 1,900,491 km (0.034 R)
• M5: 2,601,208 km (0.031 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.9

Radius: 11.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.8 AU - 0.84 AU

Year: 522 Days

Day: 11.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,833,790 km

• M1: 147,354 km (0.073 R)
• M2: 1,381,836 km (0.054 R)
• M3: 2,329,987 km (0.039 R)
• M4: 3,553,697 km (0.072 R)
• M5: 4,082,825 km (0.088 R)
• M6: 4,513,817 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.2

Radius: 13.5

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.18 AU - 1.24 AU

Year: 936 Days

Day: 6.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,833,790 km

• M1: 167,849 km (0.067 R)
• M2: 589,116 km (0.086 R)
• M3: 1,183,319 km (0.079 R)
• M4: 1,603,839 km (0.119 R)
• M5: 2,411,218 km (0.109 R)
• M6: 3,365,055 km (0.076 R)
• M7: 4,108,257 km (0.112 R)
• M8: 4,617,189 km (0.08 R)
• M9: 5,798,114 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.7

Radius: 11.1

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.82 AU - 2.98 AU

Year: 2614 Days

Day: 7.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,833,790 km

• M1: 140,323 km (0.044 R)
• M2: 502,050 km (0.105 R)
• M3: 1,316,611 km (0.071 R)
• M4: 2,060,711 km (0.047 R)
• M5: 2,615,569 km (0.076 R)
• M6: 3,587,058 km (0.108 R)
• M7: 4,105,564 km (0.069 R)
• M8: 4,500,054 km (0.094 R)
• M9: 6,230,901 km (0.069 R)
• M10: 6,613,273 km (0.108 R)
• M11: 9,530,731 km (0.092 R)
• M12: 10,113,714 km (0.112 R)
• M13: 14,835,471 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877

Radius: 8.5

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2 AU - 3.02 AU

Year: 2795 Days

Day: 12.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,833,790 km

• M1: 106,065 km (0.117 R)
• M2: 371,601 km (0.038 R)
• M3: 645,814 km (0.049 R)
• M4: 945,758 km (0.1 R)
• M5: 1,311,225 km (0.086 R)
• M6: 1,866,383 km (0.112 R)
• M7: 2,857,319 km (0.094 R)
• M8: 3,291,901 km (0.111 R)
• M9: 4,985,349 km (0.063 R)
• M10: 6,559,567 km (0.099 R)
• M11: 7,038,281 km (0.083 R)
• M12: 7,380,561 km (0.115 R)
• M13: 7,865,407 km (0.081 R)
• M14: 8,200,357 km (0.091 R)
• M15: 10,098,006 km (0.115 R)
• M16: 12,049,809 km (0.07 R)
• M17: 13,372,404 km (0.117 R)
• M18: 14,992,250 km (0.103 R)
• M19: 17,803,792 km (0.073 R)
• M20: 18,091,319 km (0.063 R)
• M21: 19,212,705 km (0.115 R)
• M22: 21,789,229 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 889.9

Radius: 4.5

Gravity: 43.95 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 5.4 AU - 7.06 AU

Year: 10931 Days

Day: 15.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 68,833,790 km

• M1: 55,950 km (0.101 R)
• M2: 338,091 km (0.111 R)
• M3: 547,678 km (0.065 R)
• M4: 2,030,342 km (0.065 R)
• M5: 2,433,060 km (0.112 R)
• M6: 2,819,022 km (0.093 R)
• M7: 3,244,628 km (0.077 R)
• M8: 4,222,549 km (0.081 R)
• M9: 4,525,784 km (0.109 R)
• M10: 5,487,699 km (0.066 R)
• M11: 7,673,024 km (0.099 R)
• M12: 8,078,584 km (0.06 R)
• M13: 8,403,810 km (0.102 R)
• M14: 9,179,924 km (0.109 R)
• M15: 11,042,118 km (0.112 R)
• M16: 11,912,030 km (0.032 R)
• M17: 15,635,820 km (0.1 R)
• M18: 17,106,965 km (0.115 R)
• M19: 17,258,957 km (0.113 R)
• M20: 19,732,109 km (0.107 R)
• M21: 20,492,066 km (0.088 R)
• M22: 21,358,986 km (0.08 R)
• M23: 24,489,919 km (0.081 R)
• M24: 30,849,175 km (0.032 R)
• M25: 34,104,275 km (0.032 R)
• M26: 39,936,648 km (0.065 R)
• M27: 40,878,665 km (0.118 R)
• M28: 41,423,650 km (0.105 R)
• M29: 42,527,982 km (0.094 R)
• M30: 42,947,006 km (0.12 R)
• M31: 53,040,374 km (0.062 R)
• M32: 54,670,542 km (0.11 R)
• M33: 55,497,968 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 1000

Radius: 3.9

Gravity: 65.75 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.4 AU - 9.96 AU

Year: 16445 Days

Day: 19.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 68,833,790 km

• M1: 48,470 km (0.103 R)
• M2: 234,719 km (0.082 R)
• M3: 482,752 km (0.096 R)
• M4: 1,175,540 km (0.087 R)
• M5: 1,522,158 km (0.108 R)
• M6: 1,764,507 km (0.09 R)
• M7: 2,414,809 km (0.075 R)
• M8: 2,623,498 km (0.042 R)
• M9: 5,657,642 km (0.055 R)
• M10: 6,410,269 km (0.083 R)
• M11: 9,399,085 km (0.032 R)
• M12: 13,703,614 km (0.12 R)
• M13: 20,840,180 km (0.088 R)
• M14: 25,028,023 km (0.091 R)
• M15: 28,072,040 km (0.099 R)
• M16: 32,761,186 km (0.082 R)
• M17: 36,392,824 km (0.072 R)
• M18: 40,432,864 km (0.099 R)
• M19: 53,062,365 km (0.04 R)
• M20: 64,346,981 km (0.106 R)
• M21: 70,436,811 km (0.057 R)

Asteroid Belt

Center: 8.97 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441.6

Radius: 6.9

Gravity: 9.28 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9 AU - 10.52 AU

Year: 21433 Days

Day: 23 Hours

Environment

Temp: -236 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,833,790 km

• M1: 87,216 km (0.106 R)
• M2: 327,171 km (0.116 R)
• M3: 1,779,915 km (0.088 R)
• M4: 2,835,777 km (0.119 R)
• M5: 3,109,841 km (0.097 R)
• M6: 3,740,246 km (0.105 R)
• M7: 5,666,917 km (0.097 R)
• M8: 6,690,615 km (0.093 R)
• M9: 9,977,131 km (0.06 R)
• M10: 12,551,261 km (0.104 R)
• M11: 13,638,539 km (0.12 R)
• M12: 14,277,172 km (0.1 R)
• M13: 17,440,269 km (0.079 R)
• M14: 18,362,241 km (0.058 R)
• M15: 21,797,906 km (0.114 R)
• M16: 33,088,207 km (0.112 R)
• M17: 33,468,933 km (0.09 R)
• M18: 36,486,173 km (0.084 R)
• M19: 41,417,966 km (0.108 R)
• M20: 45,983,842 km (0.079 R)
• M21: 56,460,929 km (0.117 R)
• M22: 61,865,003 km (0.082 R)
• M23: 65,586,399 km (0.027 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 180 - 12,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit