🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1 AU - 1.48 AU

Year: 517 Days

Day: 38.6 Hours

Environment

Temp: -6 °C

Axial Tilt: 34.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 83,313,204 km

• M1: 120,277 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.89 AU - 2.33 AU

Year: 1149 Days

Day: 39.8 Hours

Environment

Temp: -73 °C

Axial Tilt: 23.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,313,204 km

• M1: 175,777 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.81 AU - 3.77 AU

Year: 2236 Days

Day: 34.8 Hours

Environment

Temp: -119 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.23 AU - 5.33 AU

Year: 3318 Days

Day: 34 Hours

Environment

Temp: -133 °C

Axial Tilt: 38.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83

Radius: 14.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 7.86 AU - 9.36 AU

Year: 9467 Days

Day: 11.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,313,204 km

• M1: 185,501 km (0.054 R)
• M2: 835,205 km (0.091 R)
• M3: 1,430,006 km (0.119 R)
• M4: 2,280,021 km (0.065 R)
• M5: 4,915,487 km (0.119 R)
• M6: 5,513,430 km (0.069 R)
• M7: 6,131,718 km (0.079 R)
• M8: 7,999,297 km (0.11 R)
• M9: 9,793,425 km (0.09 R)
• M10: 12,018,543 km (0.086 R)
• M11: 18,786,650 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.9

Radius: 10

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 8.76 AU - 12.08 AU

Year: 12605 Days

Day: 6.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,313,204 km

• M1: 124,615 km (0.091 R)
• M2: 714,629 km (0.106 R)
• M3: 1,163,273 km (0.073 R)
• M4: 1,570,628 km (0.116 R)
• M5: 2,014,934 km (0.118 R)
• M6: 2,731,508 km (0.079 R)
• M7: 4,032,560 km (0.114 R)
• M8: 5,086,477 km (0.094 R)
• M9: 6,346,241 km (0.098 R)
• M10: 6,765,115 km (0.108 R)
• M11: 8,321,980 km (0.116 R)
• M12: 9,637,095 km (0.109 R)
• M13: 15,593,783 km (0.041 R)
• M14: 16,120,517 km (0.074 R)
• M15: 18,153,702 km (0.095 R)
• M16: 19,132,072 km (0.073 R)
• M17: 21,985,801 km (0.112 R)
• M18: 25,512,122 km (0.081 R)
• M19: 26,656,097 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 255.4

Radius: 5.3

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 10.61 AU - 14.51 AU

Year: 16681 Days

Day: 18.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 83,313,204 km

• M1: 65,973 km (0.112 R)
• M2: 249,828 km (0.098 R)
• M3: 489,484 km (0.05 R)
• M4: 787,334 km (0.114 R)
• M5: 1,322,595 km (0.107 R)
• M6: 2,143,588 km (0.087 R)
• M7: 2,683,187 km (0.1 R)
• M8: 2,896,364 km (0.068 R)
• M9: 3,120,911 km (0.045 R)
• M10: 3,999,798 km (0.081 R)
• M11: 4,364,967 km (0.095 R)
• M12: 5,325,086 km (0.1 R)
• M13: 6,381,097 km (0.088 R)
• M14: 8,667,401 km (0.104 R)
• M15: 10,480,528 km (0.092 R)
• M16: 10,849,885 km (0.044 R)
• M17: 11,337,574 km (0.11 R)
• M18: 15,168,476 km (0.034 R)
• M19: 20,022,179 km (0.081 R)
• M20: 30,780,211 km (0.106 R)
• M21: 33,882,721 km (0.037 R)
• M22: 34,457,775 km (0.102 R)
• M23: 40,959,747 km (0.108 R)
• M24: 45,395,175 km (0.12 R)
• M25: 47,513,032 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 596.5

Radius: 3.5

Gravity: 48.69 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 10.46 AU - 16.58 AU

Year: 18629 Days

Day: 16 Hours

Environment

Temp: -183 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,313,204 km

• M1: 43,533 km (0.103 R)
• M2: 343,477 km (0.115 R)
• M3: 751,281 km (0.093 R)
• M4: 977,173 km (0.107 R)
• M5: 1,274,873 km (0.098 R)
• M6: 2,600,909 km (0.118 R)
• M7: 3,038,482 km (0.093 R)
• M8: 3,813,848 km (0.081 R)
• M9: 4,183,504 km (0.119 R)
• M10: 5,588,378 km (0.101 R)
• M11: 5,863,040 km (0.091 R)
• M12: 7,419,157 km (0.041 R)
• M13: 8,392,740 km (0.111 R)
• M14: 17,776,565 km (0.094 R)
• M15: 18,369,571 km (0.108 R)
• M16: 24,831,302 km (0.034 R)
• M17: 28,680,754 km (0.095 R)
• M18: 32,281,575 km (0.069 R)
• M19: 38,509,633 km (0.066 R)
• M20: 43,483,015 km (0.115 R)
• M21: 53,797,339 km (0.098 R)
• M22: 66,028,910 km (0.079 R)
• M23: 67,447,247 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 420.7

Radius: 7.6

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 16.73 AU - 19.79 AU

Year: 29240 Days

Day: 16.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,313,204 km

• M1: 94,546 km (0.073 R)
• M2: 348,264 km (0.074 R)
• M3: 1,769,144 km (0.115 R)
• M4: 2,230,953 km (0.075 R)
• M5: 5,107,271 km (0.098 R)
• M6: 6,528,002 km (0.026 R)
• M7: 14,398,047 km (0.03 R)
• M8: 14,787,450 km (0.071 R)
• M9: 17,099,186 km (0.075 R)
• M10: 32,868,747 km (0.104 R)
• M11: 36,625,448 km (0.074 R)
• M12: 50,841,285 km (0.087 R)
• M13: 66,816,393 km (0.09 R)
• M14: 67,899,482 km (0.076 R)
• M15: 68,336,008 km (0.104 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 20,319 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit