🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.64 AU - 0.72 AU

Year: 205 Days

Day: 13 Hours

Environment

Temp: 172 °C

Axial Tilt: 6.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.74 AU - 0.96 AU

Year: 286 Days

Day: 26.8 Hours

Environment

Temp: 102 °C

Axial Tilt: 7.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.55 AU - 2.89 AU

Year: 1638 Days

Day: 21.9 Hours

Environment

Temp: -97 °C

Axial Tilt: 37.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,058,202 km

• M1: 76,744 km (0.071 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.3

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.97 AU - 3.35 AU

Year: 2052 Days

Day: 15.7 Hours

Environment

Temp: -109 °C

Axial Tilt: 127.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 3.63 AU - 4.41 AU

Year: 2944 Days

Day: 13.3 Hours

Environment

Temp: -122 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,058,202 km

• M1: 713,283 km (0.097 R)
• M2: 2,975,950 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34

Radius: 11.8

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 5.17 AU - 5.47 AU

Year: 4482 Days

Day: 13.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,058,202 km

• M1: 146,756 km (0.048 R)
• M2: 768,783 km (0.065 R)
• M3: 1,243,607 km (0.082 R)
• M4: 3,695,067 km (0.117 R)
• M5: 4,437,073 km (0.07 R)
• M6: 5,276,018 km (0.118 R)
• M7: 7,759,941 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744

Radius: 9.6

Gravity: 8.07 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.7 AU - 7.86 AU

Year: 7174 Days

Day: 10.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,058,202 km

• M1: 119,379 km (0.068 R)
• M2: 510,578 km (0.071 R)
• M3: 819,348 km (0.111 R)
• M4: 1,258,417 km (0.056 R)
• M5: 1,653,056 km (0.062 R)
• M6: 2,212,104 km (0.113 R)
• M7: 2,676,904 km (0.118 R)
• M8: 3,659,164 km (0.072 R)
• M9: 5,559,506 km (0.082 R)
• M10: 6,046,896 km (0.072 R)
• M11: 6,352,823 km (0.068 R)
• M12: 10,151,861 km (0.111 R)
• M13: 10,487,708 km (0.118 R)
• M14: 11,283,719 km (0.07 R)
• M15: 11,644,399 km (0.057 R)
• M16: 14,269,094 km (0.077 R)
• M17: 17,606,173 km (0.093 R)
• M18: 18,801,311 km (0.107 R)
• M19: 28,627,348 km (0.078 R)
• M20: 29,396,131 km (0.082 R)
• M21: 29,883,521 km (0.082 R)
• M22: 30,774,376 km (0.104 R)
• M23: 32,609,045 km (0.099 R)
• M24: 37,856,489 km (0.085 R)
• M25: 38,201,911 km (0.064 R)
• M26: 39,368,924 km (0.067 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.2

Radius: 12.4

Gravity: 4.98 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.65 AU - 9.93 AU

Year: 9519 Days

Day: 11 Hours

Environment

Temp: -160 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 62,058,202 km

• M1: 154,983 km (0.104 R)
• M2: 573,558 km (0.116 R)
• M3: 1,007,093 km (0.055 R)
• M4: 1,611,169 km (0.075 R)
• M5: 3,340,969 km (0.078 R)
• M6: 3,836,737 km (0.051 R)
• M7: 4,584,128 km (0.083 R)
• M8: 5,797,965 km (0.076 R)
• M9: 7,834,590 km (0.062 R)
• M10: 11,096,422 km (0.1 R)
• M11: 11,865,954 km (0.103 R)
• M12: 12,263,884 km (0.032 R)
• M13: 13,511,680 km (0.118 R)
• M14: 14,198,035 km (0.12 R)
• M15: 16,258,297 km (0.025 R)
• M16: 17,396,437 km (0.056 R)
• M17: 18,662,933 km (0.116 R)
• M18: 19,124,442 km (0.068 R)
• M19: 23,716,349 km (0.1 R)
• M20: 25,085,917 km (0.117 R)
• M21: 25,648,256 km (0.113 R)
• M22: 29,823,233 km (0.106 R)
• M23: 30,348,621 km (0.109 R)
• M24: 32,071,540 km (0.115 R)
• M25: 34,315,807 km (0.079 R)
• M26: 37,509,123 km (0.075 R)
• M27: 38,368,263 km (0.115 R)
• M28: 39,115,056 km (0.11 R)
• M29: 40,253,496 km (0.099 R)
• M30: 40,895,420 km (0.11 R)
• M31: 42,067,968 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.2

Radius: 13.9

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 8.49 AU - 13.51 AU

Year: 13325 Days

Day: 14.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 62,058,202 km

• M1: 172,935 km (0.109 R)
• M2: 675,434 km (0.111 R)
• M3: 1,682,228 km (0.103 R)
• M4: 2,478,687 km (0.099 R)
• M5: 3,622,512 km (0.025 R)
• M6: 5,444,465 km (0.077 R)
• M7: 6,805,207 km (0.081 R)
• M8: 8,285,777 km (0.03 R)
• M9: 9,334,159 km (0.053 R)
• M10: 10,135,705 km (0.087 R)
• M11: 14,567,841 km (0.099 R)
• M12: 15,427,131 km (0.085 R)
• M13: 15,869,193 km (0.109 R)
• M14: 16,701,854 km (0.087 R)
• M15: 19,717,598 km (0.087 R)
• M16: 20,680,110 km (0.096 R)
• M17: 21,673,590 km (0.11 R)
• M18: 24,745,433 km (0.114 R)
• M19: 32,456,006 km (0.115 R)
• M20: 37,511,516 km (0.091 R)
• M21: 40,365,096 km (0.107 R)
• M22: 41,773,560 km (0.066 R)
• M23: 45,137,118 km (0.031 R)
• M24: 47,115,999 km (0.11 R)
• M25: 50,434,080 km (0.108 R)
• M26: 51,246,396 km (0.048 R)
• M27: 53,064,459 km (0.11 R)
• M28: 53,567,557 km (0.113 R)
• M29: 55,096,297 km (0.114 R)
• M30: 57,708,575 km (0.104 R)
• M31: 58,240,695 km (0.108 R)
• M32: 60,038,413 km (0.114 R)
• M33: 62,058,133 km (0.108 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 17,221 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit