🌌 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: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.74 AU - 0.82 AU

Year: 248 Days

Day: 33 Hours

Environment

Temp: 154 °C

Axial Tilt: 37.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 48,086,075 km

• M1: 67,768 km (0.071 R)
• M2: 207,343 km (0.099 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1 AU - 1.14 AU

Year: 398 Days

Day: 47.7 Hours

Environment

Temp: 23 °C

Axial Tilt: 43.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.02 AU - 1.14 AU

Year: 404 Days

Day: 45.3 Hours

Environment

Temp: 21 °C

Axial Tilt: 6.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 48,086,075 km

• M1: 527,332 km (0.06 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.76 AU - 2.04 AU

Year: 943 Days

Day: 26.6 Hours

Environment

Temp: -61 °C

Axial Tilt: 1.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 6.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.4

Radius: 8.9

Gravity: 4.92 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.67 AU - 8.25 AU

Year: 6608 Days

Day: 8.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,086,075 km

• M1: 140,622 km (0.092 R)
• M2: 490,382 km (0.072 R)
• M3: 1,057,807 km (0.116 R)
• M4: 1,487,751 km (0.08 R)
• M5: 2,046,050 km (0.051 R)
• M6: 3,013,200 km (0.115 R)
• M7: 3,663,502 km (0.103 R)
• M8: 6,724,275 km (0.082 R)
• M9: 7,024,368 km (0.117 R)
• M10: 7,905,200 km (0.114 R)
• M11: 9,341,489 km (0.067 R)
• M12: 11,406,987 km (0.106 R)
• M13: 12,077,036 km (0.109 R)
• M14: 13,759,863 km (0.032 R)
• M15: 15,248,661 km (0.103 R)
• M16: 17,710,294 km (0.116 R)
• M17: 20,494,908 km (0.061 R)
• M18: 21,700,667 km (0.117 R)
• M19: 23,865,498 km (0.092 R)
• M20: 24,252,807 km (0.111 R)
• M21: 27,588,690 km (0.104 R)
• M22: 29,145,256 km (0.035 R)
• M23: 29,499,055 km (0.118 R)
• M24: 29,945,155 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 15.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.3

Radius: 7.1

Gravity: 14.47 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 12.1 AU - 19.46 AU

Year: 22560 Days

Day: 21.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 48,086,075 km

• M1: 89,310 km (0.074 R)
• M2: 578,794 km (0.096 R)
• M3: 802,293 km (0.106 R)
• M4: 1,046,288 km (0.081 R)
• M5: 1,295,069 km (0.039 R)
• M6: 1,600,847 km (0.109 R)
• M7: 1,954,347 km (0.109 R)
• M8: 3,423,098 km (0.119 R)
• M9: 4,630,652 km (0.092 R)
• M10: 5,592,866 km (0.078 R)
• M11: 6,774,988 km (0.119 R)
• M12: 7,058,776 km (0.052 R)
• M13: 15,096,520 km (0.081 R)
• M14: 18,345,187 km (0.115 R)
• M15: 30,062,141 km (0.12 R)
• M16: 30,958,831 km (0.068 R)
• M17: 33,345,964 km (0.108 R)
• M18: 38,783,398 km (0.062 R)
• M19: 44,453,157 km (0.103 R)
• M20: 51,192,242 km (0.088 R)
• M21: 52,838,716 km (0.076 R)
• M22: 62,013,553 km (0.096 R)
• M23: 65,577,274 km (0.077 R)
• M24: 66,005,273 km (0.055 R)
• M25: 69,275,034 km (0.092 R)
• M26: 71,740,407 km (0.119 R)
• M27: 72,194,885 km (0.045 R)
• M28: 80,706,854 km (0.086 R)
• M29: 81,444,970 km (0.119 R)
• M30: 82,934,666 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.2

Radius: 5

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 13.93 AU - 21.73 AU

Year: 27096 Days

Day: 16.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,086,075 km

• M1: 62,233 km (0.093 R)
• M2: 333,005 km (0.115 R)
• M3: 734,376 km (0.118 R)
• M4: 976,276 km (0.057 R)
• M5: 1,162,226 km (0.088 R)
• M6: 2,321,460 km (0.106 R)
• M7: 4,152,986 km (0.07 R)
• M8: 12,242,791 km (0.106 R)
• M9: 14,248,898 km (0.092 R)
• M10: 15,229,213 km (0.094 R)
• M11: 15,430,422 km (0.066 R)
• M12: 21,060,388 km (0.109 R)
• M13: 24,192,220 km (0.091 R)
• M14: 27,820,417 km (0.065 R)
• M15: 33,463,099 km (0.112 R)
• M16: 34,261,054 km (0.086 R)
• M17: 35,071,575 km (0.049 R)
• M18: 36,370,982 km (0.105 R)
• M19: 39,695,945 km (0.074 R)

Kuiper Belt

Range: 30.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 416 - 18,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit