🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.44 AU - 0.68 AU

Year: 157 Days

Day: 41.2 Hours

Environment

Temp: 184 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,796,958 km

• M1: 25,432 km (0.098 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.74 AU - 0.8 AU

Year: 253 Days

Day: 37.1 Hours

Environment

Temp: 146 °C

Axial Tilt: 21.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.77 AU - 1.25 AU

Year: 380 Days

Day: 38.8 Hours

Environment

Temp: 24 °C

Axial Tilt: 23.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 75,796,958 km

• M1: 23,636 km (0.035 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.96 AU - 1.48 AU

Year: 505 Days

Day: 31.1 Hours

Environment

Temp: -7 °C

Axial Tilt: 23 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 75,796,958 km

• M1: 177,273 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.54 AU - 2.14 AU

Year: 935 Days

Day: 33.7 Hours

Environment

Temp: -76 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.4

Radius: 11.2

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 5.24 AU - 6.1 AU

Year: 5059 Days

Day: 10.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,796,958 km

• M1: 139,276 km (0.071 R)
• M2: 791,822 km (0.1 R)
• M3: 1,497,325 km (0.117 R)
• M4: 1,896,153 km (0.059 R)
• M5: 2,875,421 km (0.099 R)
• M6: 3,289,208 km (0.117 R)
• M7: 3,810,856 km (0.106 R)
• M8: 4,670,146 km (0.099 R)
• M9: 5,388,665 km (0.099 R)
• M10: 6,115,860 km (0.103 R)
• M11: 6,770,949 km (0.107 R)
• M12: 8,143,958 km (0.084 R)
• M13: 12,893,990 km (0.037 R)
• M14: 14,418,692 km (0.072 R)
• M15: 15,698,501 km (0.114 R)
• M16: 16,675,824 km (0.083 R)
• M17: 18,954,349 km (0.059 R)
• M18: 19,781,326 km (0.105 R)
• M19: 20,345,909 km (0.112 R)
• M20: 20,993,817 km (0.035 R)
• M21: 23,487,763 km (0.105 R)
• M22: 26,597,005 km (0.08 R)
• M23: 27,111,921 km (0.107 R)
• M24: 31,282,560 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.4

Radius: 12.1

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 8.82 AU - 13.52 AU

Year: 13990 Days

Day: 15 Hours

Environment

Temp: -182 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,796,958 km

• M1: 1,998,328 km (0.08 R)
• M2: 2,677,951 km (0.093 R)
• M3: 3,313,144 km (0.07 R)
• M4: 3,790,810 km (0.115 R)
• M5: 6,690,316 km (0.089 R)
• M6: 10,910,173 km (0.045 R)
• M7: 12,389,696 km (0.067 R)
• M8: 12,863,323 km (0.05 R)
• M9: 19,028,849 km (0.06 R)
• M10: 22,326,285 km (0.105 R)
• M11: 23,099,856 km (0.109 R)
• M12: 25,300,291 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.3

Radius: 7.4

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 10.64 AU - 14.76 AU

Year: 16960 Days

Day: 23 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 75,796,958 km

• M1: 92,152 km (0.077 R)
• M2: 407,505 km (0.113 R)
• M3: 823,536 km (0.107 R)
• M4: 1,095,505 km (0.1 R)
• M5: 1,674,599 km (0.109 R)
• M6: 2,042,609 km (0.115 R)
• M7: 3,063,615 km (0.096 R)
• M8: 4,649,352 km (0.066 R)
• M9: 5,637,895 km (0.079 R)
• M10: 6,717,543 km (0.094 R)
• M11: 7,328,800 km (0.041 R)
• M12: 7,648,042 km (0.076 R)
• M13: 8,462,004 km (0.053 R)
• M14: 9,279,706 km (0.038 R)
• M15: 10,603,497 km (0.073 R)
• M16: 10,953,257 km (0.111 R)
• M17: 11,861,166 km (0.113 R)
• M18: 14,455,792 km (0.087 R)
• M19: 14,741,673 km (0.088 R)
• M20: 19,581,912 km (0.118 R)
• M21: 21,932,843 km (0.113 R)
• M22: 28,285,068 km (0.094 R)
• M23: 29,298,593 km (0.065 R)
• M24: 31,397,900 km (0.04 R)
• M25: 32,484,280 km (0.059 R)
• M26: 37,617,133 km (0.117 R)
• M27: 37,887,007 km (0.051 R)
• M28: 38,704,709 km (0.081 R)
• M29: 39,673,355 km (0.086 R)
• M30: 40,093,426 km (0.091 R)
• M31: 46,290,368 km (0.086 R)
• M32: 55,156,735 km (0.091 R)
• M33: 59,071,562 km (0.065 R)
• M34: 61,469,765 km (0.066 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936.5

Radius: 8

Gravity: 14.63 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 12.82 AU - 19.06 AU

Year: 23848 Days

Day: 17.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,796,958 km

• M1: 128,056 km (0.095 R)
• M2: 480,808 km (0.086 R)
• M3: 1,151,455 km (0.097 R)
• M4: 1,635,703 km (0.1 R)
• M5: 2,181,885 km (0.103 R)
• M6: 3,894,182 km (0.107 R)
• M7: 4,415,680 km (0.07 R)
• M8: 6,170,613 km (0.119 R)
• M9: 7,027,659 km (0.04 R)
• M10: 7,589,100 km (0.084 R)
• M11: 8,346,664 km (0.11 R)
• M12: 10,011,389 km (0.072 R)
• M13: 11,259,933 km (0.089 R)
• M14: 13,592,313 km (0.117 R)
• M15: 16,937,920 km (0.118 R)
• M16: 18,227,902 km (0.051 R)
• M17: 20,283,826 km (0.063 R)
• M18: 27,124,637 km (0.071 R)
• M19: 28,502,882 km (0.109 R)
• M20: 33,623,019 km (0.113 R)
• M21: 46,339,287 km (0.082 R)
• M22: 47,943,874 km (0.117 R)
• M23: 51,075,107 km (0.1 R)
• M24: 52,403,237 km (0.114 R)
• M25: 56,525,555 km (0.081 R)
• M26: 64,086,232 km (0.073 R)
• M27: 73,726,618 km (0.08 R)
• M28: 93,827,485 km (0.104 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.9

Radius: 5.7

Gravity: 14.49 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 13.07 AU - 18.93 AU

Year: 23983 Days

Day: 24.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 75,796,958 km

• M1: 70,909 km (0.059 R)
• M2: 342,130 km (0.112 R)
• M3: 1,053,618 km (0.1 R)
• M4: 1,297,163 km (0.082 R)
• M5: 1,577,958 km (0.111 R)
• M6: 2,115,463 km (0.08 R)
• M7: 2,694,557 km (0.063 R)
• M8: 3,401,856 km (0.09 R)
• M9: 3,692,973 km (0.086 R)
• M10: 5,213,935 km (0.119 R)
• M11: 5,883,983 km (0.053 R)
• M12: 6,834,379 km (0.06 R)
• M13: 11,344,755 km (0.069 R)
• M14: 13,298,503 km (0.087 R)
• M15: 14,392,213 km (0.103 R)
• M16: 15,623,403 km (0.082 R)
• M17: 16,346,111 km (0.09 R)
• M18: 16,757,056 km (0.111 R)
• M19: 17,174,883 km (0.05 R)
• M20: 21,644,568 km (0.111 R)
• M21: 23,776,637 km (0.075 R)
• M22: 26,156,440 km (0.107 R)
• M23: 28,690,328 km (0.031 R)
• M24: 35,047,939 km (0.108 R)
• M25: 35,593,821 km (0.08 R)
• M26: 38,120,230 km (0.066 R)
• M27: 38,988,197 km (0.041 R)
• M28: 42,902,276 km (0.053 R)
• M29: 45,922,657 km (0.111 R)
• M30: 49,936,667 km (0.049 R)
• M31: 50,975,624 km (0.066 R)
• M32: 65,407,480 km (0.049 R)
• M33: 67,068,465 km (0.101 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 14,324 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit