🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.12 AU - 1.22 AU

Year: 467 Days

Day: 39.9 Hours

Environment

Temp: -7 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 87,417,882 km

• M1: 116,836 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.51 AU - 1.53 AU

Year: 691 Days

Day: 16.4 Hours

Environment

Temp: -35 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.57

Radius: 1.2

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.42 AU - 1.98 AU

Year: 818 Days

Day: 39 Hours

Environment

Temp: -46 °C

Axial Tilt: 12.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,417,882 km

• M1: 29,321 km (0.087 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.75 AU - 2.07 AU

Year: 974 Days

Day: 23.2 Hours

Environment

Temp: -76 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,417,882 km

• M1: 69,862 km (0.12 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.31 AU - 2.57 AU

Year: 1406 Days

Day: 13.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 41.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.13

Radius: 0.44

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.43 AU - 5.69 AU

Year: 3593 Days

Day: 17.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 87,417,882 km

• M1: 10,921 km (0.117 R)
• M2: 339,587 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.4

Radius: 14.6

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.78 AU - 9.54 AU

Year: 7822 Days

Day: 14.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,417,882 km

• M1: 181,612 km (0.117 R)
• M2: 707,748 km (0.079 R)
• M3: 1,271,133 km (0.093 R)
• M4: 1,885,681 km (0.06 R)
• M5: 3,548,611 km (0.081 R)
• M6: 4,288,373 km (0.092 R)
• M7: 5,422,923 km (0.113 R)
• M8: 6,240,774 km (0.077 R)
• M9: 6,819,120 km (0.103 R)
• M10: 7,322,068 km (0.101 R)
• M11: 8,083,820 km (0.049 R)
• M12: 9,109,762 km (0.09 R)
• M13: 10,174,750 km (0.083 R)
• M14: 10,737,686 km (0.047 R)
• M15: 11,722,040 km (0.107 R)
• M16: 14,978,636 km (0.069 R)
• M17: 16,782,188 km (0.073 R)
• M18: 17,436,529 km (0.036 R)
• M19: 19,934,365 km (0.055 R)
• M20: 23,705,877 km (0.084 R)
• M21: 27,476,791 km (0.069 R)
• M22: 31,433,205 km (0.061 R)
• M23: 32,529,159 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.5

Radius: 11.1

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 9.96 AU - 12.18 AU

Year: 13589 Days

Day: 5.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 87,417,882 km

• M1: 138,079 km (0.064 R)
• M2: 849,267 km (0.099 R)
• M3: 1,858,305 km (0.034 R)
• M4: 2,393,865 km (0.088 R)
• M5: 3,776,748 km (0.087 R)
• M6: 4,366,313 km (0.035 R)
• M7: 6,439,740 km (0.082 R)
• M8: 9,735,979 km (0.045 R)
• M9: 14,378,300 km (0.113 R)
• M10: 17,074,054 km (0.078 R)
• M11: 17,484,850 km (0.116 R)
• M12: 24,037,685 km (0.106 R)
• M13: 28,093,283 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899

Radius: 6.1

Gravity: 24.16 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 12.02 AU - 18.04 AU

Year: 21499 Days

Day: 16.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 87,417,882 km

• M1: 76,744 km (0.109 R)
• M2: 276,756 km (0.104 R)
• M3: 482,603 km (0.047 R)
• M4: 723,455 km (0.116 R)
• M5: 980,764 km (0.089 R)
• M6: 1,344,586 km (0.089 R)
• M7: 1,611,019 km (0.03 R)
• M8: 1,833,472 km (0.086 R)
• M9: 2,652,819 km (0.098 R)
• M10: 2,884,546 km (0.088 R)
• M11: 3,539,186 km (0.114 R)
• M12: 4,906,361 km (0.109 R)
• M13: 5,749,944 km (0.114 R)
• M14: 6,500,775 km (0.074 R)
• M15: 7,364,853 km (0.089 R)
• M16: 9,318,751 km (0.118 R)
• M17: 12,145,552 km (0.063 R)
• M18: 17,923,022 km (0.09 R)
• M19: 19,706,528 km (0.118 R)
• M20: 21,915,490 km (0.045 R)
• M21: 28,768,568 km (0.093 R)
• M22: 35,182,726 km (0.074 R)
• M23: 38,114,994 km (0.103 R)
• M24: 46,665,111 km (0.074 R)
• M25: 50,560,340 km (0.112 R)
• M26: 51,474,982 km (0.082 R)
• M27: 56,409,019 km (0.039 R)
• M28: 60,822,754 km (0.108 R)
• M29: 64,600,998 km (0.09 R)
• M30: 68,755,481 km (0.106 R)
• M31: 74,960,800 km (0.101 R)
• M32: 79,053,200 km (0.099 R)
• M33: 79,298,540 km (0.116 R)
• M34: 80,532,423 km (0.114 R)
• M35: 81,278,917 km (0.092 R)
• M36: 83,546,222 km (0.105 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 10,623 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit