🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.4

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.84 AU - 0.92 AU

Year: 296 Days

Day: 39 Hours

Environment

Temp: 114 °C

Axial Tilt: 2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 87,554,766 km

• M1: 37,549 km (0.08 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.01 AU - 1.51 AU

Year: 507 Days

Day: 39.2 Hours

Environment

Temp: 16 °C

Axial Tilt: 18.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.42 AU - 3.58 AU

Year: 1861 Days

Day: 44 Hours

Environment

Temp: -90 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,554,766 km

• M1: 103,372 km (0.043 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.88 AU - 4.62 AU

Year: 3138 Days

Day: 37.5 Hours

Environment

Temp: -115 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.41 AU - 5.71 AU

Year: 4077 Days

Day: 41.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 10.37 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 15.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 96.9

Radius: 6.5

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 13.03 AU - 18.33 AU

Year: 22238 Days

Day: 15.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,554,766 km

• M1: 81,381 km (0.066 R)
• M2: 993,330 km (0.093 R)
• M3: 1,565,841 km (0.097 R)
• M4: 2,580,713 km (0.052 R)
• M5: 2,986,572 km (0.081 R)
• M6: 8,196,916 km (0.086 R)
• M7: 12,015,402 km (0.082 R)
• M8: 14,215,388 km (0.103 R)
• M9: 15,800,826 km (0.054 R)
• M10: 22,070,922 km (0.06 R)
• M11: 25,252,869 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 366.6

Radius: 3.2

Gravity: 35.8 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 14.34 AU - 22.16 AU

Year: 27923 Days

Day: 17.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 87,554,766 km

• M1: 40,541 km (0.116 R)
• M2: 166,502 km (0.101 R)
• M3: 274,961 km (0.03 R)
• M4: 432,338 km (0.093 R)
• M5: 552,315 km (0.096 R)
• M6: 656,884 km (0.076 R)
• M7: 1,202,019 km (0.061 R)
• M8: 2,450,563 km (0.047 R)
• M9: 2,887,837 km (0.059 R)
• M10: 3,608,450 km (0.04 R)
• M11: 5,918,989 km (0.107 R)
• M12: 6,086,988 km (0.055 R)
• M13: 6,928,625 km (0.072 R)
• M14: 7,498,444 km (0.025 R)
• M15: 7,645,648 km (0.116 R)
• M16: 8,948,346 km (0.065 R)
• M17: 10,151,263 km (0.112 R)
• M18: 10,452,702 km (0.109 R)
• M19: 10,636,558 km (0.052 R)
• M20: 12,732,724 km (0.057 R)
• M21: 14,933,607 km (0.084 R)
• M22: 15,560,572 km (0.099 R)
• M23: 17,289,774 km (0.096 R)
• M24: 19,602,707 km (0.092 R)
• M25: 20,929,640 km (0.06 R)
• M26: 23,550,594 km (0.107 R)
• M27: 27,066,294 km (0.104 R)
• M28: 35,252,140 km (0.071 R)
• M29: 51,710,748 km (0.088 R)
• M30: 54,965,549 km (0.094 R)
• M31: 55,893,355 km (0.069 R)
• M32: 58,739,305 km (0.07 R)
• M33: 63,898,337 km (0.094 R)
• M34: 68,066,283 km (0.06 R)
• M35: 71,748,485 km (0.091 R)
• M36: 76,247,641 km (0.108 R)
• M37: 76,938,334 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 452.7

Radius: 6.9

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 16.19 AU - 22.41 AU

Year: 30368 Days

Day: 16.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 87,554,766 km

• M1: 86,168 km (0.057 R)
• M2: 305,778 km (0.091 R)
• M3: 764,744 km (0.111 R)
• M4: 1,122,582 km (0.093 R)
• M5: 1,826,590 km (0.116 R)
• M6: 2,047,396 km (0.113 R)
• M7: 2,742,428 km (0.09 R)
• M8: 3,403,800 km (0.104 R)
• M9: 3,803,975 km (0.071 R)
• M10: 4,132,791 km (0.1 R)
• M11: 5,155,591 km (0.093 R)
• M12: 6,428,370 km (0.114 R)
• M13: 11,217,447 km (0.073 R)
• M14: 12,527,026 km (0.083 R)
• M15: 15,778,237 km (0.113 R)
• M16: 21,957,227 km (0.097 R)
• M17: 22,376,401 km (0.045 R)
• M18: 25,692,836 km (0.045 R)
• M19: 26,393,253 km (0.114 R)
• M20: 27,106,386 km (0.089 R)
• M21: 27,954,457 km (0.096 R)
• M22: 29,703,555 km (0.103 R)
• M23: 36,545,713 km (0.081 R)
• M24: 40,958,999 km (0.101 R)
• M25: 46,570,416 km (0.078 R)
• M26: 47,961,377 km (0.03 R)
• M27: 50,280,443 km (0.049 R)
• M28: 51,008,685 km (0.115 R)
• M29: 53,613,334 km (0.045 R)
• M30: 54,948,195 km (0.061 R)
• M31: 58,082,570 km (0.069 R)
• M32: 59,085,923 km (0.045 R)
• M33: 63,004,190 km (0.114 R)
• M34: 72,968,306 km (0.113 R)
• M35: 77,957,395 km (0.068 R)
• M36: 80,659,282 km (0.103 R)
• M37: 84,699,921 km (0.115 R)

Kuiper Belt

Range: 30.6 - 52.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 13,113 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit