🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.5 AU - 0.52 AU

Year: 127 Days

Day: 26.3 Hours

Environment

Temp: 262 °C

Axial Tilt: 18.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.55 AU - 0.65 AU

Year: 163 Days

Day: 34.2 Hours

Environment

Temp: 208 °C

Axial Tilt: 14.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 87,832,830 km

• M1: 11,519 km (0.063 R)
• M2: 26,628 km (0.078 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.7 AU - 0.74 AU

Year: 214 Days

Day: 26.1 Hours

Environment

Temp: 173 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.97 AU - 1.39 AU

Year: 448 Days

Day: 29.3 Hours

Environment

Temp: 28 °C

Axial Tilt: 32 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 87,832,830 km

• M1: 248,482 km (0.069 R)
• M2: 364,869 km (0.104 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.7

Radius: 0.87

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.21 AU - 2.25 AU

Year: 1165 Days

Day: 14.4 Hours

Environment

Temp: -63 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 87,832,830 km

• M1: 462,257 km (0.037 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.63 AU - 2.71 AU

Year: 1526 Days

Day: 43.6 Hours

Environment

Temp: -89 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 857.1

Radius: 10.6

Gravity: 7.63 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 8.95 AU - 12.71 AU

Year: 12469 Days

Day: 13.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,832,830 km

• M1: 131,796 km (0.097 R)
• M2: 515,963 km (0.081 R)
• M3: 957,127 km (0.086 R)
• M4: 1,373,458 km (0.049 R)
• M5: 1,792,631 km (0.07 R)
• M6: 2,162,437 km (0.056 R)
• M7: 2,735,696 km (0.116 R)
• M8: 3,512,408 km (0.088 R)
• M9: 4,715,026 km (0.091 R)
• M10: 6,134,709 km (0.11 R)
• M11: 7,155,865 km (0.062 R)
• M12: 9,903,379 km (0.08 R)
• M13: 11,962,444 km (0.065 R)
• M14: 13,683,418 km (0.089 R)
• M15: 14,019,415 km (0.101 R)
• M16: 17,296,506 km (0.072 R)
• M17: 19,830,544 km (0.099 R)
• M18: 27,601,555 km (0.116 R)
• M19: 28,902,458 km (0.105 R)
• M20: 30,930,108 km (0.047 R)
• M21: 33,413,283 km (0.09 R)
• M22: 40,679,850 km (0.108 R)
• M23: 41,096,330 km (0.11 R)
• M24: 43,946,768 km (0.089 R)
• M25: 47,845,887 km (0.115 R)
• M26: 49,720,947 km (0.086 R)
• M27: 52,296,424 km (0.118 R)
• M28: 54,117,927 km (0.114 R)
• M29: 58,414,229 km (0.035 R)

Planet 8 - Gas Giant

Semi-Major Axis: 13.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.4

Radius: 9.3

Gravity: 7.9 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 12.93 AU - 13.29 AU

Year: 16607 Days

Day: 5.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 87,832,830 km

• M1: 117,883 km (0.048 R)
• M2: 474,973 km (0.071 R)
• M3: 829,670 km (0.094 R)
• M4: 1,163,273 km (0.094 R)
• M5: 1,872,217 km (0.114 R)
• M6: 2,292,288 km (0.104 R)
• M7: 2,917,158 km (0.065 R)
• M8: 3,322,868 km (0.081 R)
• M9: 4,216,715 km (0.065 R)
• M10: 4,636,188 km (0.113 R)
• M11: 6,024,157 km (0.079 R)
• M12: 6,813,734 km (0.066 R)
• M13: 8,597,988 km (0.064 R)
• M14: 10,154,554 km (0.043 R)
• M15: 12,730,031 km (0.074 R)
• M16: 13,886,422 km (0.094 R)
• M17: 14,890,074 km (0.075 R)
• M18: 15,864,705 km (0.09 R)
• M19: 17,692,491 km (0.067 R)
• M20: 19,130,725 km (0.081 R)
• M21: 22,430,854 km (0.097 R)
• M22: 22,917,347 km (0.071 R)
• M23: 29,665,407 km (0.077 R)
• M24: 31,934,508 km (0.111 R)
• M25: 35,485,662 km (0.108 R)
• M26: 37,220,399 km (0.109 R)
• M27: 50,310,362 km (0.056 R)
• M28: 52,668,174 km (0.11 R)
• M29: 55,984,460 km (0.087 R)
• M30: 56,520,469 km (0.084 R)
• M31: 58,149,141 km (0.088 R)
• M32: 58,699,063 km (0.064 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836

Radius: 4.8

Gravity: 36.28 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 12.92 AU - 19.14 AU

Year: 22453 Days

Day: 17.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 87,832,830 km

• M1: 73,453 km (0.111 R)
• M2: 239,506 km (0.085 R)
• M3: 554,709 km (0.119 R)
• M4: 956,529 km (0.114 R)
• M5: 1,602,343 km (0.096 R)
• M6: 1,768,247 km (0.033 R)
• M7: 3,017,539 km (0.047 R)
• M8: 3,758,796 km (0.061 R)
• M9: 4,053,354 km (0.038 R)
• M10: 5,428,159 km (0.111 R)
• M11: 6,287,898 km (0.102 R)
• M12: 6,609,234 km (0.088 R)
• M13: 8,437,170 km (0.099 R)
• M14: 9,888,569 km (0.089 R)
• M15: 10,197,638 km (0.063 R)
• M16: 10,513,140 km (0.1 R)
• M17: 14,268,346 km (0.114 R)
• M18: 19,018,676 km (0.087 R)
• M19: 19,884,699 km (0.062 R)
• M20: 21,181,563 km (0.045 R)
• M21: 21,695,132 km (0.115 R)
• M22: 22,216,780 km (0.08 R)
• M23: 22,427,862 km (0.071 R)
• M24: 22,640,142 km (0.12 R)
• M25: 24,164,394 km (0.07 R)
• M26: 25,524,239 km (0.066 R)
• M27: 27,054,027 km (0.042 R)
• M28: 28,768,718 km (0.116 R)
• M29: 30,295,065 km (0.118 R)
• M30: 33,094,639 km (0.087 R)
• M31: 35,627,481 km (0.065 R)
• M32: 46,018,250 km (0.116 R)
• M33: 48,809,896 km (0.057 R)
• M34: 52,269,197 km (0.103 R)
• M35: 56,670,965 km (0.109 R)
• M36: 57,262,774 km (0.112 R)
• M37: 58,860,778 km (0.101 R)
• M38: 60,078,804 km (0.106 R)
• M39: 65,550,945 km (0.107 R)
• M40: 66,859,328 km (0.037 R)
• M41: 81,162,978 km (0.109 R)

Kuiper Belt

Range: 31.4 - 50.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 190 - 15,149 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit