🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.13 AU - 1.67 AU

Year: 621 Days

Day: 28 Hours

Environment

Temp: -45 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.39 AU - 2.11 AU

Year: 868 Days

Day: 43.3 Hours

Environment

Temp: -55 °C

Axial Tilt: 67.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.44 AU - 2.48 AU

Year: 1446 Days

Day: 41.7 Hours

Environment

Temp: -98 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.34

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.55 AU - 3.61 AU

Year: 2026 Days

Day: 23.2 Hours

Environment

Temp: -118 °C

Axial Tilt: 36 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,280,910 km

• M1: 638,185 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.2

Radius: 14

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 6.4 AU - 7.18 AU

Year: 6630 Days

Day: 13.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,280,910 km

• M1: 174,282 km (0.074 R)
• M2: 978,220 km (0.114 R)
• M3: 1,953,000 km (0.108 R)
• M4: 2,679,597 km (0.085 R)
• M5: 3,265,871 km (0.074 R)
• M6: 3,736,506 km (0.093 R)
• M7: 4,252,469 km (0.063 R)
• M8: 6,375,412 km (0.066 R)
• M9: 10,710,310 km (0.077 R)
• M10: 11,976,656 km (0.091 R)
• M11: 12,510,421 km (0.104 R)
• M12: 13,577,802 km (0.114 R)
• M13: 14,755,586 km (0.047 R)
• M14: 16,376,180 km (0.099 R)
• M15: 17,653,297 km (0.093 R)
• M16: 20,405,299 km (0.084 R)
• M17: 21,232,276 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.8

Radius: 13.7

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.48 AU - 8.78 AU

Year: 7898 Days

Day: 5.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 71,280,910 km

• M1: 186,549 km (0.118 R)
• M2: 614,249 km (0.079 R)
• M3: 1,297,911 km (0.116 R)
• M4: 2,734,799 km (0.119 R)
• M5: 3,337,678 km (0.063 R)
• M6: 4,028,371 km (0.084 R)
• M7: 5,210,344 km (0.094 R)
• M8: 7,105,600 km (0.047 R)
• M9: 7,912,830 km (0.098 R)
• M10: 8,338,885 km (0.073 R)
• M11: 8,915,883 km (0.115 R)
• M12: 9,710,398 km (0.063 R)
• M13: 10,653,762 km (0.071 R)
• M14: 13,250,183 km (0.115 R)
• M15: 14,473,744 km (0.103 R)
• M16: 15,905,246 km (0.113 R)
• M17: 19,739,140 km (0.064 R)
• M18: 21,252,023 km (0.064 R)
• M19: 22,669,912 km (0.094 R)
• M20: 23,271,744 km (0.099 R)
• M21: 24,597,480 km (0.11 R)
• M22: 27,495,939 km (0.115 R)
• M23: 28,180,648 km (0.081 R)
• M24: 34,524,795 km (0.053 R)
• M25: 39,369,522 km (0.053 R)
• M26: 40,616,570 km (0.098 R)
• M27: 41,122,659 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.4

Radius: 9.7

Gravity: 9.63 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 7.29 AU - 11.25 AU

Year: 10577 Days

Day: 6.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,280,910 km

• M1: 121,623 km (0.071 R)
• M2: 460,163 km (0.108 R)
• M3: 846,275 km (0.113 R)
• M4: 1,304,344 km (0.098 R)
• M5: 1,744,461 km (0.068 R)
• M6: 3,479,796 km (0.109 R)
• M7: 4,304,828 km (0.075 R)
• M8: 6,073,524 km (0.115 R)
• M9: 6,651,720 km (0.037 R)
• M10: 9,899,489 km (0.067 R)
• M11: 16,735,364 km (0.087 R)
• M12: 17,871,261 km (0.076 R)
• M13: 18,497,627 km (0.113 R)
• M14: 21,150,745 km (0.086 R)
• M15: 22,658,692 km (0.095 R)
• M16: 24,618,873 km (0.113 R)
• M17: 25,492,524 km (0.119 R)
• M18: 28,554,494 km (0.093 R)
• M19: 29,087,660 km (0.095 R)
• M20: 30,504,801 km (0.117 R)
• M21: 31,512,642 km (0.098 R)
• M22: 34,308,327 km (0.07 R)
• M23: 36,261,477 km (0.069 R)
• M24: 37,392,137 km (0.111 R)
• M25: 49,407,090 km (0.085 R)
• M26: 51,894,305 km (0.074 R)
• M27: 52,688,370 km (0.115 R)
• M28: 53,008,210 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 614.4

Radius: 6.6

Gravity: 14.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 12.19 AU - 15.35 AU

Year: 19148 Days

Day: 19.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,280,910 km

• M1: 82,129 km (0.115 R)
• M2: 959,670 km (0.09 R)
• M3: 1,628,373 km (0.093 R)
• M4: 2,415,108 km (0.079 R)
• M5: 2,807,054 km (0.064 R)
• M6: 3,031,302 km (0.062 R)
• M7: 5,319,401 km (0.116 R)
• M8: 5,862,142 km (0.1 R)
• M9: 8,613,397 km (0.116 R)
• M10: 8,822,684 km (0.041 R)
• M11: 9,863,885 km (0.067 R)
• M12: 10,984,822 km (0.072 R)
• M13: 11,418,357 km (0.045 R)
• M14: 11,863,261 km (0.076 R)
• M15: 13,617,595 km (0.115 R)
• M16: 17,548,129 km (0.112 R)
• M17: 18,312,425 km (0.111 R)
• M18: 19,635,020 km (0.098 R)
• M19: 21,496,017 km (0.038 R)
• M20: 25,564,930 km (0.088 R)
• M21: 25,998,016 km (0.118 R)
• M22: 26,990,448 km (0.107 R)
• M23: 27,326,893 km (0.062 R)
• M24: 28,237,496 km (0.091 R)
• M25: 30,119,138 km (0.106 R)
• M26: 31,708,166 km (0.096 R)
• M27: 38,909,509 km (0.04 R)
• M28: 41,831,454 km (0.062 R)
• M29: 53,206,577 km (0.073 R)
• M30: 62,290,160 km (0.092 R)
• M31: 62,877,631 km (0.114 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 297 - 10,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit