🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.52 AU - 0.62 AU

Year: 156 Days

Day: 38.2 Hours

Environment

Temp: 244 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 70,173,567 km

• M1: 34,408 km (0.081 R)
• M2: 82,728 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.46 AU - 0.7 AU

Year: 161 Days

Day: 28.9 Hours

Environment

Temp: 164 °C

Axial Tilt: 23 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.73 AU - 0.79 AU

Year: 241 Days

Day: 26.8 Hours

Environment

Temp: 123 °C

Axial Tilt: 23.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 70,173,567 km

• M1: 98,585 km (0.109 R)
• M2: 298,298 km (0.105 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.03 AU - 1.07 AU

Year: 391 Days

Day: 13.1 Hours

Environment

Temp: 36 °C

Axial Tilt: 38.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.04 AU - 1.58 AU

Year: 545 Days

Day: 31.3 Hours

Environment

Temp: -11 °C

Axial Tilt: 20.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,173,567 km

• M1: 444,605 km (0.087 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.57 AU - 3.01 AU

Year: 1694 Days

Day: 27.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,173,567 km

• M1: 138,827 km (0.078 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.7 AU - 4.82 AU

Year: 3196 Days

Day: 22.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 54.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,173,567 km

• M1: 63,579 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 425.2

Radius: 7.9

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 12.83 AU - 16.01 AU

Year: 19901 Days

Day: 23.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,173,567 km

• M1: 101,577 km (0.117 R)
• M2: 1,441,675 km (0.096 R)
• M3: 3,423,547 km (0.054 R)
• M4: 3,842,122 km (0.115 R)
• M5: 6,634,815 km (0.091 R)
• M6: 7,421,850 km (0.088 R)
• M7: 10,045,198 km (0.083 R)
• M8: 11,381,406 km (0.105 R)
• M9: 12,378,177 km (0.088 R)
• M10: 12,963,852 km (0.1 R)
• M11: 14,050,531 km (0.058 R)
• M12: 14,544,653 km (0.047 R)
• M13: 17,592,859 km (0.06 R)
• M14: 18,333,219 km (0.111 R)
• M15: 26,379,640 km (0.099 R)
• M16: 28,119,014 km (0.107 R)
• M17: 28,677,912 km (0.074 R)
• M18: 30,869,521 km (0.066 R)
• M19: 32,799,782 km (0.091 R)
• M20: 34,681,125 km (0.081 R)
• M21: 37,568,812 km (0.118 R)
• M22: 44,569,095 km (0.063 R)
• M23: 45,176,163 km (0.116 R)
• M24: 47,030,579 km (0.051 R)
• M25: 47,659,787 km (0.083 R)
• M26: 48,454,152 km (0.064 R)
• M27: 55,479,567 km (0.09 R)
• M28: 56,005,852 km (0.091 R)
• M29: 57,604,904 km (0.106 R)
• M30: 64,305,542 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.7

Radius: 3.2

Gravity: 30.44 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 13.24 AU - 17.8 AU

Year: 22221 Days

Day: 15.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 70,173,567 km

• M1: 58,642 km (0.069 R)
• M2: 1,129,913 km (0.045 R)
• M3: 1,837,511 km (0.087 R)
• M4: 2,095,717 km (0.076 R)
• M5: 2,549,597 km (0.115 R)
• M6: 3,217,850 km (0.112 R)
• M7: 6,679,246 km (0.035 R)
• M8: 8,362,521 km (0.096 R)
• M9: 12,218,107 km (0.116 R)
• M10: 12,860,031 km (0.116 R)
• M11: 15,877,869 km (0.114 R)
• M12: 16,487,032 km (0.071 R)
• M13: 19,164,534 km (0.07 R)
• M14: 24,346,904 km (0.089 R)
• M15: 30,739,221 km (0.099 R)
• M16: 40,646,639 km (0.094 R)
• M17: 42,505,243 km (0.099 R)
• M18: 42,941,919 km (0.072 R)
• M19: 43,088,226 km (0.102 R)
• M20: 43,528,941 km (0.089 R)
• M21: 47,631,962 km (0.115 R)
• M22: 62,405,051 km (0.038 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.3

Radius: 4.5

Gravity: 13.94 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 16.62 AU - 19.24 AU

Year: 27593 Days

Day: 19 Hours

Environment

Temp: -207 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 70,173,567 km

• M1: 56,997 km (0.096 R)
• M2: 199,564 km (0.1 R)
• M3: 354,098 km (0.119 R)
• M4: 592,108 km (0.08 R)
• M5: 989,440 km (0.113 R)
• M6: 1,466,957 km (0.114 R)
• M7: 2,289,595 km (0.066 R)
• M8: 2,935,260 km (0.104 R)
• M9: 3,493,709 km (0.119 R)
• M10: 4,057,393 km (0.075 R)
• M11: 6,151,913 km (0.105 R)
• M12: 6,925,484 km (0.064 R)
• M13: 8,104,913 km (0.042 R)
• M14: 8,979,313 km (0.09 R)
• M15: 9,801,802 km (0.112 R)
• M16: 14,677,496 km (0.116 R)
• M17: 16,686,296 km (0.089 R)
• M18: 23,900,803 km (0.12 R)
• M19: 25,151,890 km (0.1 R)
• M20: 29,636,834 km (0.082 R)
• M21: 32,947,884 km (0.096 R)
• M22: 33,845,022 km (0.059 R)
• M23: 35,154,452 km (0.081 R)
• M24: 41,171,279 km (0.118 R)
• M25: 46,868,414 km (0.087 R)
• M26: 47,514,079 km (0.064 R)
• M27: 48,002,217 km (0.07 R)
• M28: 48,658,203 km (0.098 R)
• M29: 53,243,677 km (0.09 R)
• M30: 55,370,959 km (0.1 R)
• M31: 62,091,494 km (0.085 R)
• M32: 65,848,345 km (0.083 R)
• M33: 66,252,259 km (0.101 R)
• M34: 66,454,965 km (0.089 R)
• M35: 66,861,422 km (0.111 R)

Kuiper Belt

Range: 30.2 - 56.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 14,332 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit