🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.49 AU - 0.57 AU

Year: 253 Days

Day: 16.6 Hours

Environment

Temp: -123 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,463,948 km

• M1: 39,344 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.9

Radius: 11.8

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.68 AU - 0.92 AU

Year: 469 Days

Day: 7 Hours

Environment

Temp: -148 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,463,948 km

• M1: 146,756 km (0.094 R)
• M2: 728,841 km (0.093 R)
• M3: 1,106,127 km (0.099 R)
• M4: 1,592,021 km (0.12 R)
• M5: 2,663,590 km (0.052 R)
• M6: 3,199,749 km (0.106 R)
• M7: 3,782,433 km (0.11 R)
• M8: 4,285,081 km (0.086 R)
• M9: 5,299,953 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.8

Radius: 11

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.84 AU - 1.1 AU

Year: 627 Days

Day: 10.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,463,948 km

• M1: 136,732 km (0.074 R)
• M2: 563,834 km (0.076 R)
• M3: 939,624 km (0.067 R)
• M4: 1,316,461 km (0.042 R)
• M5: 1,732,493 km (0.115 R)
• M6: 2,321,011 km (0.079 R)
• M7: 2,936,457 km (0.114 R)
• M8: 3,587,656 km (0.113 R)
• M9: 4,163,159 km (0.119 R)
• M10: 4,714,577 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.2

Radius: 11.8

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.8 AU - 2.78 AU

Year: 2273 Days

Day: 8.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,463,948 km

• M1: 147,504 km (0.081 R)
• M2: 550,969 km (0.114 R)
• M3: 1,037,910 km (0.077 R)
• M4: 1,480,720 km (0.067 R)
• M5: 1,862,045 km (0.069 R)
• M6: 2,298,122 km (0.107 R)
• M7: 3,395,572 km (0.094 R)
• M8: 4,018,498 km (0.085 R)
• M9: 4,525,336 km (0.094 R)
• M10: 5,601,991 km (0.104 R)
• M11: 7,866,006 km (0.109 R)
• M12: 11,024,765 km (0.04 R)
• M13: 12,961,758 km (0.11 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 558.5

Radius: 7.1

Gravity: 11.08 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.5 AU - 10.24 AU

Year: 15885 Days

Day: 24.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 84,463,948 km

• M1: 88,263 km (0.064 R)
• M2: 310,565 km (0.034 R)
• M3: 668,403 km (0.08 R)
• M4: 1,145,920 km (0.034 R)
• M5: 1,588,430 km (0.114 R)
• M6: 1,972,897 km (0.076 R)
• M7: 2,397,455 km (0.076 R)
• M8: 3,024,271 km (0.035 R)
• M9: 3,376,274 km (0.101 R)
• M10: 4,376,785 km (0.101 R)
• M11: 5,860,497 km (0.112 R)
• M12: 6,288,346 km (0.065 R)
• M13: 6,612,525 km (0.104 R)
• M14: 8,258,999 km (0.042 R)
• M15: 10,106,533 km (0.087 R)
• M16: 10,721,979 km (0.059 R)
• M17: 11,965,885 km (0.092 R)
• M18: 12,976,269 km (0.057 R)
• M19: 13,502,255 km (0.115 R)
• M20: 13,974,087 km (0.093 R)
• M21: 15,455,554 km (0.113 R)
• M22: 17,116,988 km (0.077 R)
• M23: 17,829,673 km (0.092 R)
• M24: 21,328,767 km (0.075 R)
• M25: 22,904,930 km (0.084 R)
• M26: 24,856,883 km (0.088 R)
• M27: 26,496,176 km (0.06 R)
• M28: 37,738,307 km (0.076 R)
• M29: 38,674,042 km (0.118 R)
• M30: 41,999,303 km (0.089 R)
• M31: 42,428,051 km (0.028 R)
• M32: 48,896,662 km (0.09 R)
• M33: 51,299,204 km (0.099 R)
• M34: 54,115,983 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 693.3

Radius: 5.9

Gravity: 19.92 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 10.14 AU - 11.44 AU

Year: 23251 Days

Day: 16.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 84,463,948 km

• M1: 73,453 km (0.066 R)
• M2: 643,121 km (0.025 R)
• M3: 866,172 km (0.106 R)
• M4: 1,140,833 km (0.098 R)
• M5: 1,591,123 km (0.058 R)
• M6: 4,043,630 km (0.079 R)
• M7: 6,551,639 km (0.09 R)
• M8: 7,262,079 km (0.117 R)
• M9: 9,582,342 km (0.036 R)
• M10: 10,001,814 km (0.104 R)
• M11: 11,735,205 km (0.111 R)
• M12: 12,354,839 km (0.063 R)
• M13: 12,566,221 km (0.111 R)
• M14: 12,923,760 km (0.042 R)
• M15: 15,213,505 km (0.064 R)
• M16: 16,116,777 km (0.082 R)
• M17: 18,668,767 km (0.037 R)
• M18: 19,895,470 km (0.089 R)
• M19: 29,644,015 km (0.103 R)
• M20: 30,533,673 km (0.117 R)
• M21: 32,232,806 km (0.04 R)
• M22: 35,818,218 km (0.074 R)
• M23: 37,265,278 km (0.071 R)
• M24: 37,706,891 km (0.109 R)
• M25: 41,839,383 km (0.082 R)
• M26: 48,501,425 km (0.102 R)
• M27: 49,380,911 km (0.086 R)
• M28: 49,735,607 km (0.104 R)
• M29: 53,750,515 km (0.078 R)
• M30: 58,173,376 km (0.092 R)
• M31: 58,569,062 km (0.096 R)
• M32: 60,980,879 km (0.105 R)
• M33: 77,094,365 km (0.109 R)
• M34: 81,215,338 km (0.102 R)
• M35: 81,709,609 km (0.079 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: 186 - 13,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit