🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.67 AU - 0.97 AU

Year: 259 Days

Day: 19.7 Hours

Environment

Temp: 189 °C

Axial Tilt: 31.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.28 AU - 1.84 AU

Year: 679 Days

Day: 43.8 Hours

Environment

Temp: 1 °C

Axial Tilt: 15.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 66,741,297 km

• M1: 233,971 km (0.063 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.12

Radius: 0.43

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.7 AU - 1.72 AU

Year: 779 Days

Day: 12.3 Hours

Environment

Temp: -26 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,741,297 km

• M1: 179,368 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.67 AU - 1.81 AU

Year: 799 Days

Day: 45.7 Hours

Environment

Temp: -33 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.12 AU - 2.28 AU

Year: 1136 Days

Day: 20.5 Hours

Environment

Temp: -56 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.97 AU - 2.71 AU

Year: 1247 Days

Day: 47.1 Hours

Environment

Temp: -65 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.55 AU - 5.29 AU

Year: 3236 Days

Day: 36.1 Hours

Environment

Temp: -126 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,741,297 km

• M1: 44,281 km (0.038 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986

Radius: 14

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.6 AU - 7.34 AU

Year: 5731 Days

Day: 7.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 66,741,297 km

• M1: 174,132 km (0.03 R)
• M2: 614,698 km (0.091 R)
• M3: 1,080,545 km (0.077 R)
• M4: 1,522,009 km (0.099 R)
• M5: 2,278,675 km (0.064 R)
• M6: 2,811,393 km (0.112 R)
• M7: 3,629,244 km (0.117 R)
• M8: 5,250,885 km (0.085 R)
• M9: 6,324,250 km (0.03 R)
• M10: 7,240,088 km (0.103 R)
• M11: 8,569,116 km (0.086 R)
• M12: 10,428,468 km (0.042 R)
• M13: 11,860,867 km (0.036 R)
• M14: 13,308,975 km (0.103 R)
• M15: 14,573,675 km (0.052 R)
• M16: 15,174,460 km (0.114 R)
• M17: 18,291,332 km (0.112 R)
• M18: 19,490,807 km (0.115 R)
• M19: 21,044,381 km (0.027 R)
• M20: 21,968,447 km (0.057 R)
• M21: 23,980,239 km (0.096 R)
• M22: 27,723,477 km (0.113 R)
• M23: 28,553,596 km (0.089 R)
• M24: 35,049,136 km (0.086 R)
• M25: 37,008,269 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.1

Radius: 10.7

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 11.12 AU - 12.76 AU

Year: 14368 Days

Day: 5 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,741,297 km

• M1: 133,142 km (0.073 R)
• M2: 574,007 km (0.106 R)
• M3: 915,090 km (0.079 R)
• M4: 1,817,016 km (0.071 R)
• M5: 2,960,392 km (0.045 R)
• M6: 5,534,074 km (0.093 R)
• M7: 6,267,852 km (0.075 R)
• M8: 6,892,124 km (0.12 R)
• M9: 7,511,459 km (0.111 R)
• M10: 7,976,409 km (0.032 R)
• M11: 10,367,282 km (0.1 R)
• M12: 11,180,945 km (0.116 R)
• M13: 11,849,797 km (0.119 R)
• M14: 13,334,257 km (0.11 R)
• M15: 14,086,435 km (0.067 R)
• M16: 14,722,674 km (0.098 R)
• M17: 15,157,406 km (0.106 R)
• M18: 16,281,933 km (0.065 R)
• M19: 18,528,594 km (0.034 R)
• M20: 21,432,737 km (0.027 R)
• M21: 21,991,635 km (0.114 R)
• M22: 26,391,458 km (0.088 R)
• M23: 26,818,410 km (0.067 R)
• M24: 30,989,199 km (0.067 R)
• M25: 37,554,002 km (0.087 R)
• M26: 39,190,603 km (0.083 R)
• M27: 51,170,400 km (0.105 R)
• M28: 56,117,303 km (0.12 R)
• M29: 57,894,376 km (0.11 R)
• M30: 58,434,723 km (0.118 R)
• M31: 61,001,225 km (0.09 R)

Planet 10 - Gas Giant

Semi-Major Axis: 12.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792

Radius: 14.3

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 9.55 AU - 15.33 AU

Year: 15280 Days

Day: 5.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,741,297 km

• M1: 177,872 km (0.119 R)
• M2: 641,625 km (0.099 R)
• M3: 1,607,878 km (0.055 R)
• M4: 2,066,395 km (0.052 R)
• M5: 3,105,801 km (0.074 R)
• M6: 4,374,391 km (0.064 R)
• M7: 5,847,930 km (0.084 R)
• M8: 8,498,206 km (0.039 R)
• M9: 9,059,647 km (0.095 R)
• M10: 9,920,284 km (0.043 R)
• M11: 12,247,278 km (0.091 R)
• M12: 22,813,974 km (0.034 R)
• M13: 23,501,825 km (0.115 R)
• M14: 24,203,589 km (0.07 R)
• M15: 25,859,937 km (0.104 R)
• M16: 28,710,973 km (0.09 R)
• M17: 31,402,538 km (0.111 R)
• M18: 32,871,739 km (0.119 R)
• M19: 35,421,485 km (0.101 R)
• M20: 38,652,200 km (0.101 R)
• M21: 39,771,342 km (0.075 R)
• M22: 42,812,068 km (0.091 R)
• M23: 46,945,009 km (0.109 R)
• M24: 49,189,425 km (0.098 R)
• M25: 50,338,188 km (0.05 R)
• M26: 59,622,830 km (0.109 R)
• M27: 65,156,455 km (0.115 R)

Kuiper Belt

Range: 31.5 - 53.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 166 - 13,799 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit