🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.62 AU - 1 AU

Year: 257 Days

Day: 23.8 Hours

Environment

Temp: 153 °C

Axial Tilt: 14.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 50,059,148 km

• M1: 372,798 km (0.041 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.12 AU - 1.2 AU

Year: 441 Days

Day: 23.8 Hours

Environment

Temp: 14 °C

Axial Tilt: 11.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.91 AU - 2.65 AU

Year: 1216 Days

Day: 31.4 Hours

Environment

Temp: -69 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.51 AU - 3.53 AU

Year: 2332 Days

Day: 16.4 Hours

Environment

Temp: -107 °C

Axial Tilt: 36.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.22 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.2

Radius: 8.4

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.32 AU - 9.52 AU

Year: 9407 Days

Day: 11.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,059,148 km

• M1: 104,569 km (0.089 R)
• M2: 1,826,889 km (0.107 R)
• M3: 3,239,243 km (0.106 R)
• M4: 4,534,910 km (0.059 R)
• M5: 6,693,308 km (0.084 R)
• M6: 8,417,124 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.8

Radius: 10.2

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 8.97 AU - 9.77 AU

Year: 10128 Days

Day: 7.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 50,059,148 km

• M1: 161,865 km (0.09 R)
• M2: 631,453 km (0.111 R)
• M3: 1,347,727 km (0.071 R)
• M4: 2,804,960 km (0.057 R)
• M5: 3,342,016 km (0.095 R)
• M6: 4,054,252 km (0.117 R)
• M7: 4,864,474 km (0.112 R)
• M8: 8,700,313 km (0.1 R)
• M9: 10,452,403 km (0.114 R)
• M10: 13,199,319 km (0.113 R)
• M11: 14,191,752 km (0.076 R)
• M12: 14,576,368 km (0.106 R)
• M13: 15,100,259 km (0.102 R)
• M14: 15,909,434 km (0.101 R)
• M15: 16,324,718 km (0.106 R)
• M16: 16,676,273 km (0.06 R)
• M17: 19,992,409 km (0.071 R)
• M18: 21,635,592 km (0.118 R)
• M19: 22,060,151 km (0.067 R)
• M20: 23,634,519 km (0.086 R)
• M21: 24,175,614 km (0.116 R)
• M22: 28,500,638 km (0.119 R)
• M23: 31,982,080 km (0.108 R)
• M24: 32,644,051 km (0.109 R)
• M25: 34,224,552 km (0.07 R)
• M26: 39,020,510 km (0.025 R)
• M27: 42,235,069 km (0.099 R)
• M28: 43,568,884 km (0.098 R)
• M29: 44,246,263 km (0.107 R)
• M30: 46,320,437 km (0.081 R)
• M31: 47,882,239 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.1

Radius: 10.7

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 9.41 AU - 14.81 AU

Year: 14880 Days

Day: 9.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,059,148 km

• M1: 135,835 km (0.092 R)
• M2: 499,806 km (0.12 R)
• M3: 1,081,742 km (0.043 R)
• M4: 3,441,948 km (0.119 R)
• M5: 6,213,996 km (0.046 R)
• M6: 8,827,322 km (0.057 R)
• M7: 9,591,617 km (0.076 R)
• M8: 10,772,543 km (0.072 R)
• M9: 11,595,630 km (0.1 R)
• M10: 13,095,648 km (0.076 R)
• M11: 16,603,419 km (0.12 R)
• M12: 19,968,922 km (0.078 R)
• M13: 21,061,286 km (0.098 R)
• M14: 25,746,392 km (0.114 R)
• M15: 26,258,765 km (0.096 R)
• M16: 26,952,300 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.5

Radius: 6.4

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 13 AU - 19.02 AU

Year: 22620 Days

Day: 24.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,059,148 km

• M1: 79,586 km (0.095 R)
• M2: 284,236 km (0.098 R)
• M3: 869,912 km (0.085 R)
• M4: 1,469,949 km (0.046 R)
• M5: 1,875,658 km (0.099 R)
• M6: 2,372,772 km (0.103 R)
• M7: 3,375,227 km (0.107 R)
• M8: 4,137,129 km (0.094 R)
• M9: 4,725,647 km (0.108 R)
• M10: 5,235,626 km (0.07 R)
• M11: 5,711,198 km (0.091 R)
• M12: 6,440,188 km (0.028 R)
• M13: 6,670,569 km (0.105 R)
• M14: 7,733,013 km (0.082 R)
• M15: 8,856,792 km (0.097 R)
• M16: 10,607,536 km (0.114 R)
• M17: 13,428,653 km (0.098 R)
• M18: 15,246,566 km (0.116 R)
• M19: 20,332,445 km (0.073 R)
• M20: 21,249,181 km (0.119 R)
• M21: 24,072,242 km (0.098 R)
• M22: 25,097,736 km (0.039 R)
• M23: 28,451,121 km (0.096 R)
• M24: 30,881,788 km (0.104 R)
• M25: 44,436,701 km (0.109 R)
• M26: 47,119,889 km (0.119 R)

Kuiper Belt

Range: 31.1 - 49.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 16,387 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit