🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.48 AU - 0.6 AU

Year: 260 Days

Day: 22.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,965,102 km

• M1: 21,243 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.53 AU - 0.61 AU

Year: 282 Days

Day: 22.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.47 AU - 0.71 AU

Year: 297 Days

Day: 14 Hours

Environment

Temp: -125 °C

Axial Tilt: 18.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.7

Radius: 9

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.6 AU - 0.84 AU

Year: 401 Days

Day: 5.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,965,102 km

• M1: 111,899 km (0.047 R)
• M2: 482,603 km (0.088 R)
• M3: 790,475 km (0.117 R)
• M4: 1,081,293 km (0.098 R)
• M5: 2,020,918 km (0.089 R)
• M6: 2,397,755 km (0.112 R)
• M7: 2,722,980 km (0.084 R)
• M8: 3,025,168 km (0.097 R)
• M9: 3,451,672 km (0.103 R)
• M10: 3,818,934 km (0.062 R)
• M11: 4,264,886 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.6

Radius: 13.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.53 AU - 4.01 AU

Year: 4802 Days

Day: 11 Hours

Environment

Temp: -211 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,965,102 km

• M1: 171,589 km (0.098 R)
• M2: 762,500 km (0.104 R)
• M3: 1,295,667 km (0.115 R)
• M4: 2,040,964 km (0.075 R)
• M5: 2,573,532 km (0.119 R)
• M6: 3,491,614 km (0.036 R)
• M7: 3,924,102 km (0.097 R)
• M8: 4,414,783 km (0.047 R)
• M9: 5,731,094 km (0.055 R)
• M10: 6,864,448 km (0.102 R)
• M11: 7,775,948 km (0.115 R)
• M12: 8,244,039 km (0.074 R)
• M13: 10,629,677 km (0.086 R)
• M14: 13,587,376 km (0.097 R)
• M15: 14,120,842 km (0.04 R)
• M16: 15,911,379 km (0.048 R)
• M17: 16,341,174 km (0.109 R)
• M18: 21,076,246 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766.1

Radius: 7.4

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 6.19 AU - 7.33 AU

Year: 11530 Days

Day: 15.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,965,102 km

• M1: 92,003 km (0.097 R)
• M2: 426,803 km (0.067 R)
• M3: 1,265,448 km (0.119 R)
• M4: 1,881,642 km (0.068 R)
• M5: 2,373,969 km (0.095 R)
• M6: 3,587,507 km (0.079 R)
• M7: 3,911,536 km (0.09 R)
• M8: 4,744,496 km (0.065 R)
• M9: 7,042,619 km (0.055 R)
• M10: 7,336,878 km (0.054 R)
• M11: 7,950,080 km (0.108 R)
• M12: 9,328,325 km (0.114 R)
• M13: 12,920,469 km (0.102 R)
• M14: 18,190,353 km (0.094 R)
• M15: 25,123,317 km (0.118 R)
• M16: 27,019,919 km (0.084 R)
• M17: 27,638,057 km (0.04 R)
• M18: 29,876,191 km (0.091 R)
• M19: 34,108,913 km (0.111 R)
• M20: 36,680,500 km (0.114 R)
• M21: 45,600,124 km (0.084 R)
• M22: 46,770,727 km (0.095 R)
• M23: 54,381,070 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 925.3

Radius: 6.9

Gravity: 19.43 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.64 AU - 8.06 AU

Year: 13072 Days

Day: 20.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 67,965,102 km

• M1: 121,922 km (0.098 R)
• M2: 340,036 km (0.077 R)
• M3: 796,758 km (0.106 R)
• M4: 1,159,683 km (0.083 R)
• M5: 1,988,754 km (0.089 R)
• M6: 2,868,539 km (0.112 R)
• M7: 3,502,535 km (0.088 R)
• M8: 4,739,261 km (0.078 R)
• M9: 5,293,072 km (0.075 R)
• M10: 6,005,607 km (0.108 R)
• M11: 10,610,827 km (0.085 R)
• M12: 12,492,769 km (0.109 R)
• M13: 13,210,838 km (0.05 R)
• M14: 13,546,237 km (0.104 R)
• M15: 16,131,138 km (0.117 R)
• M16: 17,298,899 km (0.092 R)
• M17: 22,632,063 km (0.103 R)
• M18: 24,193,117 km (0.07 R)
• M19: 24,695,467 km (0.096 R)
• M20: 26,138,638 km (0.064 R)
• M21: 28,407,588 km (0.12 R)
• M22: 30,570,624 km (0.119 R)
• M23: 31,394,460 km (0.115 R)
• M24: 35,866,837 km (0.059 R)
• M25: 38,798,956 km (0.057 R)
• M26: 43,490,943 km (0.031 R)
• M27: 47,757,475 km (0.115 R)
• M28: 50,806,279 km (0.106 R)
• M29: 52,127,827 km (0.115 R)
• M30: 57,288,355 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 906.5

Radius: 5.1

Gravity: 34.85 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.44 AU - 9.44 AU

Year: 14677 Days

Day: 16.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 67,965,102 km

• M1: 63,429 km (0.043 R)
• M2: 245,789 km (0.105 R)
• M3: 414,984 km (0.09 R)
• M4: 657,034 km (0.105 R)
• M5: 857,645 km (0.037 R)
• M6: 1,915,152 km (0.099 R)
• M7: 2,525,810 km (0.084 R)
• M8: 3,502,834 km (0.098 R)
• M9: 3,938,314 km (0.094 R)
• M10: 4,185,000 km (0.062 R)
• M11: 5,537,814 km (0.028 R)
• M12: 6,292,236 km (0.119 R)
• M13: 6,672,663 km (0.062 R)
• M14: 9,945,266 km (0.104 R)
• M15: 10,637,157 km (0.08 R)
• M16: 11,422,246 km (0.076 R)
• M17: 19,057,273 km (0.106 R)
• M18: 23,553,886 km (0.102 R)
• M19: 23,856,372 km (0.066 R)
• M20: 25,407,553 km (0.091 R)
• M21: 26,914,901 km (0.059 R)
• M22: 28,140,407 km (0.1 R)
• M23: 28,480,891 km (0.095 R)
• M24: 28,709,477 km (0.114 R)
• M25: 36,149,129 km (0.1 R)
• M26: 38,330,116 km (0.087 R)
• M27: 40,165,383 km (0.109 R)
• M28: 46,021,691 km (0.12 R)
• M29: 47,449,602 km (0.041 R)
• M30: 53,283,171 km (0.109 R)
• M31: 54,856,941 km (0.101 R)
• M32: 56,641,643 km (0.079 R)
• M33: 57,913,674 km (0.054 R)
• M34: 63,776,564 km (0.064 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 15,413 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit