🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.61 AU - 0.95 AU

Year: 264 Days

Day: 36.2 Hours

Environment

Temp: 100 °C

Axial Tilt: 22.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.7 AU - 0.92 AU

Year: 279 Days

Day: 23.8 Hours

Environment

Temp: 37 °C

Axial Tilt: 47.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.12 AU - 1.38 AU

Year: 535 Days

Day: 42.9 Hours

Environment

Temp: -24 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.32 AU - 2.04 AU

Year: 834 Days

Day: 16 Hours

Environment

Temp: -63 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 65,429,455 km

• M1: 78,389 km (0.102 R)
• M2: 441,912 km (0.039 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.31 AU - 3.53 AU

Year: 1910 Days

Day: 36.7 Hours

Environment

Temp: -112 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,429,455 km

• M1: 34,557 km (0.106 R)

Asteroid Belt

Center: 6.55 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 10.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 8.7

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 9.25 AU - 11.09 AU

Year: 12418 Days

Day: 6.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,429,455 km

• M1: 121,773 km (0.046 R)
• M2: 492,177 km (0.115 R)
• M3: 1,094,907 km (0.065 R)
• M4: 1,486,554 km (0.025 R)
• M5: 1,771,538 km (0.064 R)
• M6: 2,202,679 km (0.078 R)
• M7: 2,617,963 km (0.117 R)
• M8: 2,991,658 km (0.047 R)
• M9: 3,451,223 km (0.075 R)
• M10: 3,901,662 km (0.063 R)
• M11: 4,331,158 km (0.044 R)
• M12: 4,920,424 km (0.059 R)
• M13: 5,526,893 km (0.07 R)
• M14: 5,884,881 km (0.097 R)
• M15: 6,373,318 km (0.103 R)
• M16: 6,847,992 km (0.07 R)
• M17: 7,867,950 km (0.102 R)
• M18: 10,637,007 km (0.059 R)
• M19: 12,359,776 km (0.079 R)
• M20: 13,736,076 km (0.113 R)
• M21: 20,693,425 km (0.114 R)
• M22: 23,083,400 km (0.057 R)
• M23: 27,672,614 km (0.077 R)
• M24: 37,834,349 km (0.12 R)
• M25: 41,389,542 km (0.115 R)
• M26: 44,162,189 km (0.109 R)
• M27: 45,305,266 km (0.038 R)
• M28: 49,004,074 km (0.119 R)
• M29: 50,074,746 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.7

Radius: 7.5

Gravity: 14.61 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 13.84 AU - 21.42 AU

Year: 28343 Days

Day: 16 Hours

Environment

Temp: -195 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 65,429,455 km

• M1: 97,687 km (0.107 R)
• M2: 338,540 km (0.091 R)
• M3: 770,429 km (0.03 R)
• M4: 1,078,002 km (0.082 R)
• M5: 2,189,664 km (0.109 R)
• M6: 2,553,037 km (0.088 R)
• M7: 2,817,377 km (0.031 R)
• M8: 3,432,673 km (0.098 R)
• M9: 7,536,142 km (0.065 R)
• M10: 9,441,720 km (0.033 R)
• M11: 13,295,960 km (0.106 R)
• M12: 13,932,050 km (0.111 R)
• M13: 15,093,976 km (0.117 R)
• M14: 19,669,876 km (0.081 R)
• M15: 23,798,029 km (0.112 R)
• M16: 27,566,250 km (0.119 R)
• M17: 32,420,103 km (0.099 R)
• M18: 39,089,176 km (0.11 R)
• M19: 43,951,406 km (0.053 R)
• M20: 45,538,639 km (0.091 R)
• M21: 48,083,000 km (0.09 R)
• M22: 55,260,556 km (0.101 R)
• M23: 57,524,720 km (0.059 R)
• M24: 57,942,846 km (0.115 R)
• M25: 63,565,332 km (0.103 R)
• M26: 68,130,012 km (0.073 R)
• M27: 70,015,394 km (0.056 R)
• M28: 75,880,079 km (0.037 R)
• M29: 91,103,009 km (0.027 R)
• M30: 93,678,635 km (0.11 R)
• M31: 97,187,753 km (0.082 R)
• M32: 101,391,303 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 180

Radius: 3.7

Gravity: 13.15 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 18.18 AU - 19.34 AU

Year: 31111 Days

Day: 18 Hours

Environment

Temp: -211 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 65,429,455 km

• M1: 46,675 km (0.083 R)
• M2: 233,223 km (0.106 R)
• M3: 420,968 km (0.118 R)
• M4: 695,780 km (0.081 R)
• M5: 810,820 km (0.067 R)
• M6: 1,117,496 km (0.105 R)
• M7: 1,741,618 km (0.115 R)
• M8: 1,864,887 km (0.109 R)
• M9: 2,070,285 km (0.104 R)
• M10: 2,269,848 km (0.118 R)
• M11: 2,548,400 km (0.084 R)
• M12: 2,946,480 km (0.088 R)
• M13: 3,719,452 km (0.118 R)
• M14: 6,004,111 km (0.073 R)
• M15: 9,186,506 km (0.088 R)
• M16: 9,453,239 km (0.083 R)
• M17: 11,163,292 km (0.115 R)
• M18: 12,282,434 km (0.117 R)
• M19: 13,749,391 km (0.107 R)
• M20: 15,254,794 km (0.073 R)
• M21: 15,553,391 km (0.076 R)
• M22: 18,002,009 km (0.114 R)
• M23: 19,100,955 km (0.066 R)
• M24: 19,273,890 km (0.092 R)
• M25: 19,887,541 km (0.061 R)
• M26: 21,061,435 km (0.096 R)
• M27: 22,280,808 km (0.042 R)
• M28: 25,481,305 km (0.098 R)
• M29: 25,901,675 km (0.057 R)
• M30: 27,081,703 km (0.095 R)
• M31: 34,664,968 km (0.073 R)
• M32: 34,922,277 km (0.115 R)
• M33: 37,161,757 km (0.088 R)
• M34: 37,702,254 km (0.111 R)
• M35: 38,385,318 km (0.072 R)
• M36: 40,769,160 km (0.115 R)
• M37: 43,101,241 km (0.119 R)
• M38: 48,509,354 km (0.066 R)
• M39: 54,526,030 km (0.118 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 12,416 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit