🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.46 AU - 0.58 AU

Year: 246 Days

Day: 41.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,469,284 km

• M1: 40,691 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.1

Radius: 9.6

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.77 AU - 0.99 AU

Year: 542 Days

Day: 15 Hours

Environment

Temp: -151 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,469,284 km

• M1: 119,379 km (0.12 R)
• M2: 467,194 km (0.104 R)
• M3: 898,036 km (0.115 R)
• M4: 1,623,735 km (0.088 R)
• M5: 2,066,246 km (0.091 R)
• M6: 3,001,532 km (0.052 R)
• M7: 3,301,326 km (0.105 R)
• M8: 3,723,940 km (0.08 R)
• M9: 4,071,306 km (0.09 R)
• M10: 4,513,817 km (0.06 R)
• M11: 4,956,477 km (0.119 R)
• M12: 5,597,354 km (0.116 R)
• M13: 6,000,520 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.8

Radius: 12.3

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.2 AU - 1.96 AU

Year: 1303 Days

Day: 11.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 170.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,469,284 km

• M1: 153,039 km (0.065 R)
• M2: 624,122 km (0.114 R)
• M3: 1,065,137 km (0.059 R)
• M4: 1,450,651 km (0.106 R)
• M5: 1,843,046 km (0.083 R)
• M6: 2,341,955 km (0.037 R)
• M7: 3,371,188 km (0.058 R)
• M8: 3,955,517 km (0.085 R)
• M9: 4,514,565 km (0.1 R)
• M10: 5,857,056 km (0.096 R)
• M11: 6,971,710 km (0.11 R)
• M12: 9,225,701 km (0.103 R)
• M13: 10,964,028 km (0.103 R)
• M14: 11,474,007 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.4

Radius: 11.5

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.54 AU - 2.54 AU

Year: 1911 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,469,284 km

• M1: 143,165 km (0.108 R)
• M2: 1,070,522 km (0.083 R)
• M3: 1,489,696 km (0.076 R)
• M4: 2,030,193 km (0.043 R)
• M5: 3,893,434 km (0.109 R)
• M6: 4,418,224 km (0.059 R)
• M7: 5,412,152 km (0.097 R)
• M8: 6,138,001 km (0.091 R)
• M9: 6,876,266 km (0.099 R)
• M10: 7,617,972 km (0.102 R)
• M11: 10,299,215 km (0.09 R)
• M12: 11,852,041 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.9

Radius: 12.8

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 3.3 AU - 3.3 AU

Year: 3933 Days

Day: 9.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,469,284 km

• M1: 160,818 km (0.107 R)
• M2: 565,031 km (0.112 R)
• M3: 1,230,891 km (0.086 R)
• M4: 2,959,046 km (0.086 R)
• M5: 4,253,965 km (0.081 R)
• M6: 4,695,279 km (0.099 R)
• M7: 7,003,574 km (0.109 R)
• M8: 7,501,286 km (0.102 R)
• M9: 9,697,682 km (0.081 R)
• M10: 10,206,016 km (0.066 R)
• M11: 11,197,251 km (0.084 R)
• M12: 12,377,578 km (0.098 R)
• M13: 12,976,269 km (0.099 R)
• M14: 15,763,876 km (0.104 R)
• M15: 18,209,801 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.6

Radius: 8.3

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.85 AU - 5.45 AU

Year: 6578 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 76,469,284 km

• M1: 103,223 km (0.117 R)
• M2: 457,171 km (0.09 R)
• M3: 805,884 km (0.027 R)
• M4: 1,114,504 km (0.063 R)
• M5: 1,728,903 km (0.091 R)
• M6: 2,127,731 km (0.114 R)
• M7: 2,748,113 km (0.115 R)
• M8: 3,419,807 km (0.115 R)
• M9: 4,270,271 km (0.05 R)
• M10: 7,629,342 km (0.082 R)
• M11: 9,030,027 km (0.066 R)
• M12: 9,447,704 km (0.116 R)
• M13: 10,594,222 km (0.117 R)
• M14: 11,296,584 km (0.088 R)
• M15: 11,929,981 km (0.112 R)
• M16: 12,586,866 km (0.061 R)
• M17: 13,972,890 km (0.116 R)
• M18: 20,184,792 km (0.112 R)
• M19: 23,769,157 km (0.064 R)
• M20: 25,877,589 km (0.069 R)
• M21: 27,756,688 km (0.118 R)
• M22: 28,284,469 km (0.052 R)
• M23: 28,640,064 km (0.11 R)
• M24: 30,000,207 km (0.119 R)
• M25: 30,649,462 km (0.091 R)
• M26: 31,118,900 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 508.8

Radius: 4.2

Gravity: 28.84 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 8.24 AU - 13.42 AU

Year: 23380 Days

Day: 20.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,469,284 km

• M1: 52,958 km (0.052 R)
• M2: 191,036 km (0.114 R)
• M3: 401,820 km (0.116 R)
• M4: 601,533 km (0.119 R)
• M5: 854,802 km (0.083 R)
• M6: 1,095,505 km (0.119 R)
• M7: 1,839,904 km (0.117 R)
• M8: 4,379,178 km (0.11 R)
• M9: 4,833,657 km (0.064 R)
• M10: 5,754,282 km (0.093 R)
• M11: 6,606,242 km (0.099 R)
• M12: 16,475,961 km (0.067 R)
• M13: 16,807,171 km (0.034 R)
• M14: 21,330,113 km (0.09 R)
• M15: 27,867,540 km (0.108 R)
• M16: 29,173,081 km (0.116 R)
• M17: 30,271,129 km (0.113 R)
• M18: 42,032,215 km (0.054 R)
• M19: 66,610,247 km (0.115 R)
• M20: 68,296,963 km (0.12 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 152 - 14,765 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit