🌌 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: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.49 AU - 0.81 AU

Year: 190 Days

Day: 22.5 Hours

Environment

Temp: 176 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,860,600 km

• M1: 174,282 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.98

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.62 AU - 0.84 AU

Year: 227 Days

Day: 37.3 Hours

Environment

Temp: 118 °C

Axial Tilt: 44.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,860,600 km

• M1: 410,497 km (0.043 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.91 AU - 2.45 AU

Year: 1170 Days

Day: 37.5 Hours

Environment

Temp: -79 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.75 AU - 2.65 AU

Year: 1186 Days

Day: 42.3 Hours

Environment

Temp: -69 °C

Axial Tilt: 19.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,860,600 km

• M1: 28,723 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.93 AU - 2.63 AU

Year: 1251 Days

Day: 16.6 Hours

Environment

Temp: -77 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,860,600 km

• M1: 219,759 km (0.114 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.91

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.03 AU - 3.65 AU

Year: 2218 Days

Day: 23.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.36 AU - 3.88 AU

Year: 2503 Days

Day: 29.1 Hours

Environment

Temp: -112 °C

Axial Tilt: 34.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.84 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 14.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 887

Radius: 5.5

Gravity: 29.32 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 11.55 AU - 16.55 AU

Year: 19140 Days

Day: 17.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,860,600 km

• M1: 74,350 km (0.109 R)
• M2: 362,326 km (0.091 R)
• M3: 813,663 km (0.118 R)
• M4: 3,459,750 km (0.106 R)
• M5: 3,668,589 km (0.076 R)
• M6: 5,179,976 km (0.073 R)
• M7: 6,830,190 km (0.105 R)
• M8: 8,747,137 km (0.062 R)
• M9: 10,007,050 km (0.114 R)
• M10: 11,188,574 km (0.085 R)
• M11: 11,712,765 km (0.081 R)
• M12: 13,456,777 km (0.112 R)
• M13: 15,526,763 km (0.114 R)
• M14: 16,595,341 km (0.107 R)
• M15: 17,104,721 km (0.115 R)
• M16: 21,964,259 km (0.097 R)
• M17: 31,630,974 km (0.049 R)
• M18: 32,282,173 km (0.066 R)
• M19: 35,253,935 km (0.071 R)
• M20: 44,437,449 km (0.079 R)
• M21: 44,762,824 km (0.098 R)
• M22: 46,246,985 km (0.072 R)
• M23: 47,934,299 km (0.073 R)
• M24: 48,793,141 km (0.092 R)
• M25: 56,226,061 km (0.066 R)
• M26: 62,525,926 km (0.058 R)
• M27: 69,062,007 km (0.055 R)
• M28: 71,263,788 km (0.105 R)
• M29: 75,344,070 km (0.064 R)
• M30: 76,504,501 km (0.115 R)
• M31: 79,099,425 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.9

Radius: 3.9

Gravity: 13.08 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 14.9 AU - 17.18 AU

Year: 23347 Days

Day: 22.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 55,860,600 km

• M1: 51,162 km (0.114 R)
• M2: 173,982 km (0.061 R)
• M3: 407,654 km (0.078 R)
• M4: 820,096 km (0.112 R)
• M5: 1,006,943 km (0.074 R)
• M6: 1,570,478 km (0.09 R)
• M7: 1,911,861 km (0.113 R)
• M8: 2,203,726 km (0.069 R)
• M9: 2,566,651 km (0.1 R)
• M10: 3,159,657 km (0.105 R)
• M11: 5,732,890 km (0.12 R)
• M12: 6,614,769 km (0.106 R)
• M13: 6,817,773 km (0.06 R)
• M14: 7,495,601 km (0.116 R)
• M15: 8,032,807 km (0.076 R)
• M16: 10,008,397 km (0.102 R)
• M17: 11,511,107 km (0.038 R)
• M18: 13,739,966 km (0.111 R)
• M19: 14,886,035 km (0.117 R)
• M20: 15,948,779 km (0.117 R)
• M21: 16,094,188 km (0.086 R)
• M22: 16,535,801 km (0.086 R)
• M23: 18,145,175 km (0.106 R)
• M24: 20,278,590 km (0.059 R)
• M25: 21,317,248 km (0.079 R)
• M26: 21,493,773 km (0.072 R)
• M27: 25,330,510 km (0.082 R)
• M28: 27,150,218 km (0.085 R)
• M29: 27,775,537 km (0.12 R)
• M30: 30,934,296 km (0.117 R)
• M31: 31,731,055 km (0.096 R)
• M32: 33,962,457 km (0.115 R)
• M33: 35,177,939 km (0.117 R)
• M34: 44,078,115 km (0.088 R)
• M35: 46,257,307 km (0.052 R)
• M36: 52,900,649 km (0.026 R)

Kuiper Belt

Range: 30.2 - 49.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 174 - 16,079 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit