🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.77 AU - 1.09 AU

Year: 323 Days

Day: 36.6 Hours

Environment

Temp: 80 °C

Axial Tilt: 31.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.02 AU - 1.56 AU

Year: 527 Days

Day: 46 Hours

Environment

Temp: 12 °C

Axial Tilt: 38 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.74 AU - 2.56 AU

Year: 1135 Days

Day: 41.1 Hours

Environment

Temp: -70 °C

Axial Tilt: 173.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.84 AU - 2.62 AU

Year: 1198 Days

Day: 35.3 Hours

Environment

Temp: -73 °C

Axial Tilt: 38.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.72 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.6

Radius: 13.3

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.44 AU - 5.98 AU

Year: 4280 Days

Day: 12.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 108,724,297 km

• M1: 165,605 km (0.118 R)
• M2: 903,422 km (0.07 R)
• M3: 1,422,227 km (0.069 R)
• M4: 1,972,298 km (0.118 R)
• M5: 2,479,884 km (0.092 R)
• M6: 3,221,141 km (0.099 R)
• M7: 4,490,180 km (0.099 R)
• M8: 4,965,453 km (0.081 R)
• M9: 5,570,576 km (0.065 R)
• M10: 6,597,715 km (0.07 R)
• M11: 8,693,880 km (0.114 R)
• M12: 9,680,927 km (0.116 R)
• M13: 10,147,074 km (0.095 R)
• M14: 12,792,264 km (0.098 R)
• M15: 15,476,797 km (0.082 R)
• M16: 17,132,098 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.4

Radius: 8

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 8.18 AU - 11.4 AU

Year: 11024 Days

Day: 13.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 108,724,297 km

• M1: 99,782 km (0.093 R)
• M2: 548,276 km (0.079 R)
• M3: 810,671 km (0.047 R)
• M4: 1,215,483 km (0.112 R)
• M5: 1,606,980 km (0.115 R)
• M6: 2,704,430 km (0.032 R)
• M7: 3,470,671 km (0.1 R)
• M8: 5,490,691 km (0.119 R)
• M9: 5,755,180 km (0.117 R)
• M10: 7,169,328 km (0.098 R)
• M11: 7,566,361 km (0.109 R)
• M12: 9,164,665 km (0.085 R)
• M13: 10,314,474 km (0.08 R)
• M14: 10,769,551 km (0.079 R)
• M15: 12,159,614 km (0.119 R)
• M16: 12,496,658 km (0.074 R)
• M17: 14,029,887 km (0.077 R)
• M18: 14,651,765 km (0.108 R)
• M19: 14,905,633 km (0.077 R)
• M20: 16,084,314 km (0.107 R)
• M21: 16,422,405 km (0.055 R)
• M22: 20,939,364 km (0.05 R)
• M23: 22,081,842 km (0.044 R)
• M24: 23,611,032 km (0.097 R)
• M25: 24,224,383 km (0.098 R)
• M26: 29,721,207 km (0.06 R)
• M27: 32,866,353 km (0.064 R)
• M28: 35,880,600 km (0.039 R)
• M29: 36,226,471 km (0.118 R)
• M30: 37,159,662 km (0.106 R)
• M31: 41,812,605 km (0.056 R)
• M32: 42,839,445 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.3

Radius: 8.8

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.94 AU - 10.92 AU

Year: 11261 Days

Day: 14.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 108,724,297 km

• M1: 109,506 km (0.119 R)
• M2: 446,998 km (0.089 R)
• M3: 1,062,893 km (0.062 R)
• M4: 1,417,290 km (0.111 R)
• M5: 1,741,768 km (0.117 R)
• M6: 2,064,301 km (0.051 R)
• M7: 2,960,841 km (0.091 R)
• M8: 4,207,889 km (0.044 R)
• M9: 4,948,698 km (0.096 R)
• M10: 5,567,734 km (0.098 R)
• M11: 6,274,284 km (0.101 R)
• M12: 7,239,939 km (0.079 R)
• M13: 9,222,858 km (0.067 R)
• M14: 11,432,419 km (0.109 R)
• M15: 13,229,388 km (0.051 R)
• M16: 14,290,935 km (0.108 R)
• M17: 15,140,352 km (0.104 R)
• M18: 15,543,518 km (0.095 R)
• M19: 16,022,979 km (0.091 R)
• M20: 20,627,602 km (0.077 R)
• M21: 21,711,737 km (0.062 R)
• M22: 25,568,370 km (0.097 R)
• M23: 28,820,927 km (0.119 R)
• M24: 29,440,562 km (0.12 R)
• M25: 29,858,688 km (0.065 R)
• M26: 32,118,513 km (0.06 R)
• M27: 34,144,218 km (0.099 R)
• M28: 35,423,429 km (0.091 R)
• M29: 40,472,806 km (0.05 R)
• M30: 43,776,077 km (0.094 R)
• M31: 48,551,091 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 737.8

Radius: 4.6

Gravity: 34.87 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 15.47 AU - 25.13 AU

Year: 32917 Days

Day: 23.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 108,724,297 km

• M1: 57,296 km (0.069 R)
• M2: 201,808 km (0.099 R)
• M3: 416,630 km (0.104 R)
• M4: 756,516 km (0.086 R)
• M5: 2,599,263 km (0.091 R)
• M6: 4,142,515 km (0.086 R)
• M7: 4,558,397 km (0.076 R)
• M8: 6,306,897 km (0.111 R)
• M9: 6,503,169 km (0.114 R)
• M10: 7,601,517 km (0.117 R)
• M11: 7,880,217 km (0.055 R)
• M12: 8,165,800 km (0.092 R)
• M13: 10,497,133 km (0.097 R)
• M14: 12,999,008 km (0.104 R)
• M15: 17,551,421 km (0.1 R)
• M16: 19,038,872 km (0.051 R)
• M17: 23,412,067 km (0.113 R)
• M18: 24,121,011 km (0.103 R)
• M19: 25,955,679 km (0.103 R)
• M20: 26,333,414 km (0.064 R)
• M21: 28,277,438 km (0.106 R)
• M22: 29,488,583 km (0.058 R)
• M23: 32,886,848 km (0.088 R)
• M24: 33,925,057 km (0.117 R)
• M25: 34,832,069 km (0.11 R)
• M26: 36,066,700 km (0.085 R)
• M27: 39,114,906 km (0.09 R)
• M28: 39,611,422 km (0.074 R)
• M29: 45,718,007 km (0.102 R)
• M30: 51,625,328 km (0.092 R)
• M31: 52,222,672 km (0.065 R)
• M32: 53,026,312 km (0.117 R)
• M33: 57,807,310 km (0.038 R)
• M34: 59,972,739 km (0.062 R)
• M35: 70,632,335 km (0.076 R)
• M36: 82,758,140 km (0.096 R)
• M37: 94,407,476 km (0.115 R)
• M38: 105,496,718 km (0.114 R)
• M39: 107,425,483 km (0.115 R)

Kuiper Belt

Range: 30.5 - 59.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 10,595 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit