🌌 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: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.69 AU - 0.85 AU

Year: 243 Days

Day: 19.8 Hours

Environment

Temp: 147 °C

Axial Tilt: 26.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.8 AU - 0.88 AU

Year: 277 Days

Day: 40 Hours

Environment

Temp: 149 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 79,955,616 km

• M1: 43,683 km (0.099 R)
• M2: 324,777 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.65 AU - 1.07 AU

Year: 287 Days

Day: 35.3 Hours

Environment

Temp: 157 °C

Axial Tilt: 15.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 79,955,616 km

• M1: 152,440 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.59 AU - 1.83 AU

Year: 805 Days

Day: 20.7 Hours

Environment

Temp: -48 °C

Axial Tilt: 17.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,955,616 km

• M1: 43,683 km (0.088 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.97 AU - 3.79 AU

Year: 2236 Days

Day: 38.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.63

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 4.61 AU - 4.73 AU

Year: 3632 Days

Day: 45.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 79,955,616 km

• M1: 1,566,738 km (0.081 R)
• M2: 2,901,600 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.1

Radius: 13.6

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 8.49 AU - 9.55 AU

Year: 9749 Days

Day: 9.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,955,616 km

• M1: 261,497 km (0.081 R)
• M2: 1,902,137 km (0.092 R)
• M3: 2,863,154 km (0.117 R)
• M4: 3,758,946 km (0.112 R)
• M5: 4,376,935 km (0.092 R)
• M6: 4,884,221 km (0.097 R)
• M7: 6,282,512 km (0.07 R)
• M8: 7,828,457 km (0.084 R)
• M9: 8,506,135 km (0.097 R)
• M10: 10,351,125 km (0.059 R)
• M11: 14,084,640 km (0.075 R)
• M12: 15,360,261 km (0.108 R)
• M13: 17,356,644 km (0.098 R)
• M14: 18,201,723 km (0.114 R)
• M15: 19,909,083 km (0.112 R)
• M16: 21,037,350 km (0.116 R)
• M17: 21,789,977 km (0.117 R)
• M18: 23,567,050 km (0.048 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 372.6

Radius: 3.8

Gravity: 25.8 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 12.05 AU - 14.57 AU

Year: 17476 Days

Day: 22.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,955,616 km

• M1: 47,423 km (0.119 R)
• M2: 202,855 km (0.11 R)
• M3: 521,797 km (0.117 R)
• M4: 1,021,305 km (0.103 R)
• M5: 1,188,705 km (0.07 R)
• M6: 1,374,206 km (0.101 R)
• M7: 1,803,253 km (0.057 R)
• M8: 2,122,943 km (0.076 R)
• M9: 2,316,224 km (0.107 R)
• M10: 2,584,902 km (0.119 R)
• M11: 3,360,417 km (0.112 R)
• M12: 3,956,564 km (0.116 R)
• M13: 4,588,615 km (0.11 R)
• M14: 4,978,468 km (0.099 R)
• M15: 5,936,193 km (0.083 R)
• M16: 12,985,394 km (0.095 R)
• M17: 14,297,966 km (0.092 R)
• M18: 23,881,056 km (0.055 R)
• M19: 25,045,077 km (0.106 R)
• M20: 25,841,835 km (0.077 R)
• M21: 28,547,612 km (0.05 R)
• M22: 33,188,437 km (0.112 R)
• M23: 33,546,425 km (0.091 R)
• M24: 37,141,561 km (0.039 R)
• M25: 38,307,377 km (0.118 R)
• M26: 39,098,151 km (0.083 R)
• M27: 41,122,211 km (0.101 R)
• M28: 41,673,628 km (0.055 R)
• M29: 53,269,857 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 418.8

Radius: 7.8

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 17.51 AU - 18.55 AU

Year: 27553 Days

Day: 16.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 79,955,616 km

• M1: 97,687 km (0.12 R)
• M2: 462,257 km (0.082 R)
• M3: 765,044 km (0.098 R)
• M4: 1,031,178 km (0.083 R)
• M5: 1,405,622 km (0.11 R)
• M6: 2,993,005 km (0.092 R)
• M7: 3,263,478 km (0.1 R)
• M8: 7,086,900 km (0.11 R)
• M9: 7,920,908 km (0.07 R)
• M10: 9,665,967 km (0.03 R)
• M11: 11,068,597 km (0.038 R)
• M12: 13,749,092 km (0.105 R)
• M13: 18,763,612 km (0.085 R)
• M14: 19,037,675 km (0.043 R)
• M15: 21,525,937 km (0.073 R)
• M16: 26,103,781 km (0.057 R)
• M17: 35,014,878 km (0.081 R)
• M18: 35,989,807 km (0.077 R)
• M19: 36,271,799 km (0.062 R)
• M20: 37,994,119 km (0.059 R)
• M21: 40,071,585 km (0.111 R)
• M22: 41,292,004 km (0.05 R)
• M23: 41,756,057 km (0.096 R)
• M24: 50,361,824 km (0.102 R)
• M25: 51,246,695 km (0.032 R)
• M26: 54,890,301 km (0.098 R)
• M27: 61,273,493 km (0.103 R)
• M28: 63,301,292 km (0.095 R)
• M29: 64,124,828 km (0.101 R)
• M30: 68,349,771 km (0.061 R)
• M31: 73,660,196 km (0.12 R)

Kuiper Belt

Range: 30.5 - 56.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 14,425 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit