🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.47 AU - 0.67 AU

Year: 187 Days

Day: 30 Hours

Environment

Temp: 14 °C

Axial Tilt: 19.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 74,571,147 km

• M1: 119,828 km (0.106 R)
• M2: 380,727 km (0.045 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.67 AU - 1.79 AU

Year: 986 Days

Day: 19.5 Hours

Environment

Temp: -101 °C

Axial Tilt: 45.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.58 AU - 1.92 AU

Year: 1004 Days

Day: 40.6 Hours

Environment

Temp: -107 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,571,147 km

• M1: 200,012 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.7 AU - 1.92 AU

Year: 1056 Days

Day: 22.9 Hours

Environment

Temp: -104 °C

Axial Tilt: 41.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.55 AU - 2.41 AU

Year: 1208 Days

Day: 20.2 Hours

Environment

Temp: -107 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,571,147 km

• M1: 559,795 km (0.092 R)

Asteroid Belt

Center: 2.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.6

Radius: 10

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.28 AU - 3.2 AU

Year: 1966 Days

Day: 12.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,571,147 km

• M1: 124,316 km (0.11 R)
• M2: 448,046 km (0.104 R)
• M3: 989,740 km (0.048 R)
• M4: 1,544,448 km (0.118 R)
• M5: 2,284,060 km (0.084 R)
• M6: 3,182,096 km (0.115 R)
• M7: 3,842,272 km (0.107 R)
• M8: 4,186,646 km (0.12 R)
• M9: 4,691,539 km (0.092 R)
• M10: 5,799,909 km (0.106 R)
• M11: 6,279,221 km (0.027 R)
• M12: 6,707,370 km (0.094 R)
• M13: 7,399,709 km (0.076 R)
• M14: 8,109,701 km (0.101 R)
• M15: 8,436,273 km (0.096 R)
• M16: 9,797,913 km (0.097 R)
• M17: 11,118,413 km (0.084 R)
• M18: 12,514,759 km (0.117 R)
• M19: 13,153,393 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.2

Radius: 12.4

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 6.1 AU - 7.62 AU

Year: 7788 Days

Day: 11.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 74,571,147 km

• M1: 154,235 km (0.093 R)
• M2: 759,359 km (0.076 R)
• M3: 1,336,059 km (0.041 R)
• M4: 2,518,480 km (0.111 R)
• M5: 3,062,119 km (0.062 R)
• M6: 5,528,090 km (0.112 R)
• M7: 7,008,810 km (0.069 R)
• M8: 7,924,199 km (0.052 R)
• M9: 9,421,524 km (0.106 R)
• M10: 11,737,150 km (0.109 R)
• M11: 17,820,547 km (0.05 R)
• M12: 18,843,797 km (0.09 R)
• M13: 20,060,626 km (0.095 R)
• M14: 20,847,361 km (0.106 R)
• M15: 26,565,141 km (0.097 R)
• M16: 31,117,554 km (0.031 R)
• M17: 33,908,003 km (0.106 R)
• M18: 35,820,163 km (0.118 R)
• M19: 36,861,215 km (0.043 R)
• M20: 37,803,382 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 262.6

Radius: 8.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 6.23 AU - 10.13 AU

Year: 10141 Days

Day: 6.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,571,147 km

• M1: 105,766 km (0.115 R)
• M2: 407,654 km (0.077 R)
• M3: 743,202 km (0.109 R)
• M4: 1,099,993 km (0.081 R)
• M5: 1,754,334 km (0.065 R)
• M6: 2,152,564 km (0.09 R)
• M7: 3,494,307 km (0.106 R)
• M8: 4,330,110 km (0.097 R)
• M9: 4,781,447 km (0.081 R)
• M10: 6,663,837 km (0.109 R)
• M11: 7,599,273 km (0.052 R)
• M12: 9,773,528 km (0.113 R)
• M13: 10,504,014 km (0.053 R)
• M14: 10,787,203 km (0.104 R)
• M15: 13,076,350 km (0.046 R)
• M16: 20,214,711 km (0.032 R)
• M17: 20,801,135 km (0.118 R)
• M18: 22,864,090 km (0.067 R)
• M19: 27,038,020 km (0.058 R)
• M20: 28,657,118 km (0.103 R)
• M21: 29,025,577 km (0.12 R)
• M22: 32,584,660 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.3

Radius: 5.2

Gravity: 22.27 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 10.98 AU - 15.34 AU

Year: 20694 Days

Day: 20 Hours

Environment

Temp: -209 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 74,571,147 km

• M1: 64,925 km (0.08 R)
• M2: 321,187 km (0.115 R)
• M3: 608,714 km (0.106 R)
• M4: 1,031,627 km (0.072 R)
• M5: 1,547,590 km (0.079 R)
• M6: 1,863,092 km (0.026 R)
• M7: 2,284,359 km (0.068 R)
• M8: 2,669,873 km (0.111 R)
• M9: 3,931,133 km (0.069 R)
• M10: 4,484,346 km (0.079 R)
• M11: 4,977,570 km (0.08 R)
• M12: 5,275,270 km (0.102 R)
• M13: 6,113,317 km (0.111 R)
• M14: 6,454,849 km (0.11 R)
• M15: 6,719,188 km (0.105 R)
• M16: 8,049,712 km (0.089 R)
• M17: 9,603,286 km (0.104 R)
• M18: 10,601,403 km (0.11 R)
• M19: 11,031,796 km (0.063 R)
• M20: 11,346,400 km (0.073 R)
• M21: 12,393,136 km (0.095 R)
• M22: 19,504,720 km (0.09 R)
• M23: 22,173,845 km (0.104 R)
• M24: 22,373,259 km (0.038 R)
• M25: 22,574,019 km (0.088 R)
• M26: 31,623,045 km (0.079 R)
• M27: 32,771,209 km (0.069 R)
• M28: 33,160,014 km (0.067 R)
• M29: 37,642,564 km (0.079 R)
• M30: 39,514,034 km (0.119 R)
• M31: 39,807,245 km (0.106 R)
• M32: 42,512,723 km (0.037 R)
• M33: 46,960,716 km (0.103 R)
• M34: 51,359,791 km (0.106 R)
• M35: 64,146,669 km (0.11 R)
• M36: 64,551,780 km (0.103 R)
• M37: 65,162,738 km (0.086 R)
• M38: 69,975,152 km (0.092 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 11,261 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit