🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.77 AU - 0.99 AU

Year: 309 Days

Day: 15.6 Hours

Environment

Temp: 27 °C

Axial Tilt: 8.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.04 AU - 1.12 AU

Year: 421 Days

Day: 34 Hours

Environment

Temp: -2 °C

Axial Tilt: 33.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.06 AU - 1.64 AU

Year: 588 Days

Day: 30 Hours

Environment

Temp: -38 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,805,276 km

• M1: 390,301 km (0.091 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.4 AU - 2.22 AU

Year: 913 Days

Day: 21.9 Hours

Environment

Temp: -56 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.79 AU - 2.07 AU

Year: 1005 Days

Day: 22.4 Hours

Environment

Temp: -67 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,805,276 km

• M1: 150,645 km (0.082 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.03 AU - 2.37 AU

Year: 1223 Days

Day: 40.8 Hours

Environment

Temp: -90 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.6

Radius: 8

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.62 AU - 5.52 AU

Year: 3661 Days

Day: 8.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 81,805,276 km

• M1: 99,483 km (0.08 R)
• M2: 415,134 km (0.09 R)
• M3: 1,015,770 km (0.097 R)
• M4: 1,987,408 km (0.105 R)
• M5: 2,512,496 km (0.099 R)
• M6: 3,763,882 km (0.101 R)
• M7: 4,301,238 km (0.061 R)
• M8: 4,630,652 km (0.059 R)
• M9: 5,021,253 km (0.078 R)
• M10: 6,171,361 km (0.054 R)
• M11: 7,342,862 km (0.088 R)
• M12: 8,688,196 km (0.082 R)
• M13: 10,335,268 km (0.047 R)
• M14: 10,890,127 km (0.076 R)
• M15: 13,833,614 km (0.069 R)
• M16: 14,280,463 km (0.065 R)
• M17: 14,782,962 km (0.097 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.4

Radius: 14.3

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.15 AU - 7.85 AU

Year: 6210 Days

Day: 10.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 114 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,805,276 km

• M1: 177,872 km (0.094 R)
• M2: 867,518 km (0.11 R)
• M3: 1,321,996 km (0.045 R)
• M4: 1,844,392 km (0.102 R)
• M5: 2,371,276 km (0.085 R)
• M6: 2,827,400 km (0.077 R)
• M7: 3,363,708 km (0.106 R)
• M8: 4,209,834 km (0.081 R)
• M9: 5,664,823 km (0.075 R)
• M10: 7,109,788 km (0.113 R)
• M11: 7,580,573 km (0.115 R)
• M12: 8,345,766 km (0.114 R)
• M13: 10,624,590 km (0.104 R)
• M14: 14,065,641 km (0.084 R)
• M15: 14,986,116 km (0.051 R)
• M16: 15,824,014 km (0.102 R)
• M17: 18,867,583 km (0.049 R)
• M18: 21,900,679 km (0.101 R)
• M19: 23,295,081 km (0.038 R)
• M20: 25,162,063 km (0.083 R)
• M21: 25,665,011 km (0.114 R)
• M22: 26,518,317 km (0.085 R)
• M23: 31,456,842 km (0.094 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 928.7

Radius: 7.3

Gravity: 17.43 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 12.24 AU - 15.3 AU

Year: 19148 Days

Day: 20.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 81,805,276 km

• M1: 90,956 km (0.093 R)
• M2: 419,323 km (0.054 R)
• M3: 1,009,187 km (0.034 R)
• M4: 1,510,490 km (0.061 R)
• M5: 2,341,506 km (0.08 R)
• M6: 2,644,890 km (0.082 R)
• M7: 3,359,519 km (0.107 R)
• M8: 4,469,236 km (0.061 R)
• M9: 5,165,166 km (0.108 R)
• M10: 6,408,025 km (0.111 R)
• M11: 7,838,928 km (0.11 R)
• M12: 8,096,536 km (0.052 R)
• M13: 9,528,936 km (0.108 R)
• M14: 10,366,534 km (0.106 R)
• M15: 11,252,303 km (0.054 R)
• M16: 13,612,060 km (0.09 R)
• M17: 14,135,802 km (0.036 R)
• M18: 14,364,388 km (0.114 R)
• M19: 15,303,563 km (0.038 R)
• M20: 15,869,941 km (0.034 R)
• M21: 19,565,606 km (0.087 R)
• M22: 21,411,494 km (0.11 R)
• M23: 22,017,665 km (0.088 R)
• M24: 25,333,651 km (0.096 R)
• M25: 32,141,103 km (0.08 R)
• M26: 32,536,789 km (0.115 R)
• M27: 33,879,280 km (0.107 R)
• M28: 37,687,593 km (0.115 R)
• M29: 39,468,257 km (0.029 R)
• M30: 40,379,158 km (0.083 R)
• M31: 45,974,717 km (0.051 R)
• M32: 46,814,110 km (0.088 R)
• M33: 49,568,506 km (0.097 R)
• M34: 55,587,278 km (0.118 R)
• M35: 57,309,448 km (0.06 R)
• M36: 59,660,678 km (0.091 R)
• M37: 64,554,473 km (0.099 R)
• M38: 65,818,426 km (0.114 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 415 - 17,438 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit