🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.21

Radius: 1.08

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.65 AU - 0.65 AU

Year: 190 Days

Day: 45.6 Hours

Environment

Temp: 209 °C

Axial Tilt: 31.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.73 AU - 0.81 AU

Year: 244 Days

Day: 16.3 Hours

Environment

Temp: 176 °C

Axial Tilt: 10.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 58,057,678 km

• M1: 36,801 km (0.102 R)
• M2: 61,634 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.92 AU - 0.96 AU

Year: 330 Days

Day: 29.5 Hours

Environment

Temp: 121 °C

Axial Tilt: 32.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 58,057,678 km

• M1: 103,223 km (0.037 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.28 AU - 1.98 AU

Year: 753 Days

Day: 42.3 Hours

Environment

Temp: -35 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,057,678 km

• M1: 41,289 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.44 AU - 2.54 AU

Year: 1421 Days

Day: 23.4 Hours

Environment

Temp: -80 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,057,678 km

• M1: 75,996 km (0.082 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.31 AU - 2.79 AU

Year: 1473 Days

Day: 16.2 Hours

Environment

Temp: -94 °C

Axial Tilt: 46.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,057,678 km

• M1: 1,603,091 km (0.095 R)

Asteroid Belt

Center: 6.03 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.5

Radius: 8.5

Gravity: 13.07 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 7.89 AU - 11.12 AU

Year: 10590 Days

Day: 12.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,057,678 km

• M1: 105,766 km (0.103 R)
• M2: 450,290 km (0.097 R)
• M3: 1,012,329 km (0.063 R)
• M4: 1,569,730 km (0.116 R)
• M5: 2,022,414 km (0.036 R)
• M6: 2,976,549 km (0.109 R)
• M7: 3,337,080 km (0.03 R)
• M8: 6,185,573 km (0.078 R)
• M9: 6,534,884 km (0.093 R)
• M10: 7,530,757 km (0.042 R)
• M11: 8,065,270 km (0.092 R)
• M12: 8,913,939 km (0.093 R)
• M13: 10,513,439 km (0.113 R)
• M14: 11,525,469 km (0.088 R)
• M15: 13,807,285 km (0.087 R)
• M16: 15,019,477 km (0.119 R)
• M17: 16,301,231 km (0.058 R)
• M18: 16,968,737 km (0.089 R)
• M19: 19,655,814 km (0.103 R)
• M20: 21,187,397 km (0.095 R)
• M21: 22,251,636 km (0.115 R)
• M22: 22,888,624 km (0.105 R)
• M23: 24,582,670 km (0.104 R)
• M24: 25,165,354 km (0.105 R)
• M25: 25,657,980 km (0.119 R)
• M26: 26,358,546 km (0.097 R)
• M27: 27,693,109 km (0.076 R)
• M28: 28,750,018 km (0.101 R)
• M29: 33,483,893 km (0.089 R)
• M30: 37,039,685 km (0.111 R)
• M31: 37,805,626 km (0.074 R)
• M32: 44,174,456 km (0.076 R)
• M33: 48,897,560 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 984.5

Radius: 7.1

Gravity: 19.53 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 12.9 AU - 16.38 AU

Year: 20258 Days

Day: 22.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 58,057,678 km

• M1: 91,105 km (0.109 R)
• M2: 374,443 km (0.083 R)
• M3: 691,142 km (0.098 R)
• M4: 1,735,036 km (0.104 R)
• M5: 2,354,820 km (0.063 R)
• M6: 2,923,292 km (0.109 R)
• M7: 4,542,091 km (0.037 R)
• M8: 7,358,121 km (0.067 R)
• M9: 7,972,071 km (0.074 R)
• M10: 8,843,329 km (0.11 R)
• M11: 9,185,908 km (0.114 R)
• M12: 11,497,494 km (0.114 R)
• M13: 12,043,975 km (0.096 R)
• M14: 12,464,943 km (0.106 R)
• M15: 13,635,996 km (0.12 R)
• M16: 17,320,441 km (0.092 R)
• M17: 18,682,680 km (0.081 R)
• M18: 19,246,963 km (0.119 R)
• M19: 21,824,684 km (0.12 R)
• M20: 22,981,374 km (0.108 R)
• M21: 25,761,352 km (0.116 R)
• M22: 27,896,413 km (0.108 R)
• M23: 30,275,168 km (0.083 R)
• M24: 30,662,776 km (0.102 R)
• M25: 39,894,611 km (0.067 R)
• M26: 41,939,613 km (0.067 R)
• M27: 43,888,425 km (0.096 R)
• M28: 44,551,143 km (0.092 R)
• M29: 48,668,825 km (0.113 R)
• M30: 58,846,267 km (0.086 R)
• M31: 67,019,397 km (0.09 R)
• M32: 71,489,980 km (0.094 R)
• M33: 79,539,243 km (0.067 R)
• M34: 81,019,664 km (0.071 R)
• M35: 82,016,733 km (0.06 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168.4

Radius: 3.4

Gravity: 14.57 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 15.22 AU - 20.14 AU

Year: 26885 Days

Day: 24.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,057,678 km

• M1: 119,529 km (0.095 R)
• M2: 302,936 km (0.075 R)
• M3: 766,689 km (0.113 R)
• M4: 1,593,068 km (0.098 R)
• M5: 1,890,319 km (0.118 R)
• M6: 2,262,668 km (0.052 R)
• M7: 2,487,364 km (0.116 R)
• M8: 2,637,859 km (0.086 R)
• M9: 3,175,664 km (0.112 R)
• M10: 3,839,429 km (0.095 R)
• M11: 5,399,735 km (0.059 R)
• M12: 6,660,845 km (0.094 R)
• M13: 7,603,013 km (0.059 R)
• M14: 7,966,685 km (0.075 R)
• M15: 9,177,680 km (0.088 R)
• M16: 9,330,718 km (0.108 R)
• M17: 10,561,759 km (0.095 R)
• M18: 11,420,451 km (0.107 R)
• M19: 12,448,787 km (0.11 R)
• M20: 13,081,586 km (0.075 R)
• M21: 14,274,330 km (0.073 R)
• M22: 16,721,452 km (0.096 R)
• M23: 18,043,747 km (0.118 R)
• M24: 29,192,678 km (0.055 R)
• M25: 38,113,947 km (0.06 R)
• M26: 38,908,013 km (0.116 R)
• M27: 42,759,859 km (0.089 R)
• M28: 44,340,061 km (0.112 R)
• M29: 45,661,608 km (0.104 R)
• M30: 52,664,584 km (0.072 R)
• M31: 53,319,523 km (0.064 R)
• M32: 55,655,045 km (0.095 R)
• M33: 55,824,390 km (0.089 R)

Kuiper Belt

Range: 30.3 - 50.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 13,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit