🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.58 AU - 0.58 AU

Year: 290 Days

Day: 44.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 17.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.9

Radius: 8.7

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.79 AU - 0.95 AU

Year: 532 Days

Day: 8.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,437,889 km

• M1: 108,159 km (0.055 R)
• M2: 428,299 km (0.103 R)
• M3: 769,531 km (0.075 R)
• M4: 1,089,521 km (0.1 R)
• M5: 1,390,662 km (0.08 R)
• M6: 1,799,363 km (0.094 R)
• M7: 2,778,631 km (0.077 R)
• M8: 3,060,772 km (0.104 R)
• M9: 4,641,723 km (0.048 R)
• M10: 4,995,522 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.6

Radius: 12.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.52 AU - 2.34 AU

Year: 1759 Days

Day: 6.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,437,889 km

• M1: 150,495 km (0.12 R)
• M2: 1,850,974 km (0.085 R)
• M3: 2,977,596 km (0.081 R)
• M4: 4,417,326 km (0.118 R)
• M5: 4,823,484 km (0.067 R)
• M6: 7,336,130 km (0.084 R)
• M7: 8,055,845 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.5

Radius: 8.2

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.8 AU - 4.34 AU

Year: 5386 Days

Day: 12.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 76,437,889 km

• M1: 102,026 km (0.071 R)
• M2: 545,583 km (0.111 R)
• M3: 856,448 km (0.079 R)
• M4: 1,379,891 km (0.082 R)
• M5: 1,777,223 km (0.117 R)
• M6: 2,716,249 km (0.086 R)
• M7: 2,982,234 km (0.077 R)
• M8: 3,587,806 km (0.12 R)
• M9: 4,759,307 km (0.088 R)
• M10: 5,642,084 km (0.041 R)
• M11: 6,018,472 km (0.114 R)
• M12: 6,535,632 km (0.112 R)
• M13: 7,940,954 km (0.066 R)
• M14: 8,714,525 km (0.116 R)
• M15: 8,983,203 km (0.104 R)
• M16: 10,072,125 km (0.084 R)
• M17: 10,496,983 km (0.084 R)
• M18: 11,022,371 km (0.11 R)
• M19: 11,796,690 km (0.078 R)
• M20: 12,558,143 km (0.098 R)
• M21: 13,864,731 km (0.086 R)
• M22: 15,877,271 km (0.108 R)
• M23: 16,221,047 km (0.101 R)
• M24: 17,222,006 km (0.087 R)
• M25: 20,270,212 km (0.042 R)
• M26: 23,144,137 km (0.081 R)
• M27: 26,840,700 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.1

Radius: 12.9

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 4.73 AU - 5.31 AU

Year: 7378 Days

Day: 12.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,437,889 km

• M1: 160,369 km (0.12 R)
• M2: 731,833 km (0.08 R)
• M3: 1,172,099 km (0.087 R)
• M4: 1,644,380 km (0.091 R)
• M5: 2,683,038 km (0.106 R)
• M6: 3,297,137 km (0.069 R)
• M7: 5,046,983 km (0.094 R)
• M8: 7,349,893 km (0.111 R)
• M9: 8,519,599 km (0.11 R)
• M10: 9,108,865 km (0.037 R)
• M11: 9,641,583 km (0.112 R)
• M12: 10,108,478 km (0.115 R)
• M13: 11,133,822 km (0.119 R)
• M14: 11,791,005 km (0.111 R)
• M15: 14,406,873 km (0.11 R)
• M16: 27,054,177 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.4

Radius: 5.1

Gravity: 11.4 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 7.73 AU - 8.35 AU

Year: 14955 Days

Day: 21.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 76,437,889 km

• M1: 63,429 km (0.1 R)
• M2: 236,365 km (0.102 R)
• M3: 647,011 km (0.098 R)
• M4: 954,584 km (0.106 R)
• M5: 1,473,988 km (0.111 R)
• M6: 1,990,848 km (0.104 R)
• M7: 4,124,413 km (0.079 R)
• M8: 4,702,310 km (0.048 R)
• M9: 4,979,365 km (0.105 R)
• M10: 5,634,005 km (0.037 R)
• M11: 6,161,338 km (0.099 R)
• M12: 6,530,845 km (0.063 R)
• M13: 8,289,816 km (0.105 R)
• M14: 10,188,812 km (0.098 R)
• M15: 11,846,655 km (0.039 R)
• M16: 12,301,882 km (0.108 R)
• M17: 12,651,043 km (0.051 R)
• M18: 12,887,408 km (0.034 R)
• M19: 15,282,320 km (0.118 R)
• M20: 16,027,317 km (0.074 R)
• M21: 16,373,786 km (0.107 R)
• M22: 16,725,341 km (0.109 R)
• M23: 18,332,022 km (0.038 R)
• M24: 19,720,889 km (0.085 R)
• M25: 21,679,723 km (0.109 R)
• M26: 22,793,180 km (0.079 R)
• M27: 25,979,615 km (0.11 R)
• M28: 26,361,538 km (0.088 R)
• M29: 30,602,189 km (0.085 R)
• M30: 32,330,344 km (0.062 R)
• M31: 37,903,762 km (0.058 R)
• M32: 43,679,736 km (0.039 R)
• M33: 44,491,604 km (0.118 R)
• M34: 45,451,423 km (0.087 R)
• M35: 45,728,180 km (0.098 R)
• M36: 46,005,983 km (0.091 R)
• M37: 46,705,652 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.3

Radius: 6

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 7.15 AU - 10.13 AU

Year: 16660 Days

Day: 24.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,437,889 km

• M1: 76,145 km (0.074 R)
• M2: 392,694 km (0.116 R)
• M3: 802,293 km (0.032 R)
• M4: 1,193,342 km (0.053 R)
• M5: 1,533,229 km (0.116 R)
• M6: 1,748,799 km (0.113 R)
• M7: 2,313,830 km (0.114 R)
• M8: 2,801,968 km (0.112 R)
• M9: 3,379,865 km (0.086 R)
• M10: 3,850,200 km (0.098 R)
• M11: 4,859,687 km (0.07 R)
• M12: 5,999,922 km (0.097 R)
• M13: 6,878,211 km (0.116 R)
• M14: 7,228,719 km (0.105 R)
• M15: 7,632,035 km (0.097 R)
• M16: 9,070,119 km (0.085 R)
• M17: 10,173,403 km (0.075 R)
• M18: 10,731,553 km (0.078 R)
• M19: 11,853,387 km (0.101 R)
• M20: 13,467,997 km (0.068 R)
• M21: 15,158,453 km (0.045 R)
• M22: 16,915,480 km (0.094 R)
• M23: 17,554,113 km (0.114 R)
• M24: 19,721,039 km (0.117 R)
• M25: 25,121,821 km (0.088 R)
• M26: 26,045,887 km (0.062 R)
• M27: 26,801,356 km (0.108 R)
• M28: 28,753,908 km (0.077 R)
• M29: 29,054,749 km (0.116 R)
• M30: 33,822,732 km (0.059 R)
• M31: 34,270,329 km (0.118 R)
• M32: 39,333,020 km (0.067 R)
• M33: 42,494,173 km (0.071 R)
• M34: 44,336,321 km (0.118 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 537.4

Radius: 6.3

Gravity: 13.54 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 9.47 AU - 11.79 AU

Year: 22736 Days

Day: 24.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 76,437,889 km

• M1: 78,389 km (0.095 R)
• M2: 279,000 km (0.113 R)
• M3: 487,539 km (0.12 R)
• M4: 913,744 km (0.057 R)
• M5: 1,374,505 km (0.099 R)
• M6: 2,287,800 km (0.089 R)
• M7: 2,510,851 km (0.103 R)
• M8: 2,772,946 km (0.085 R)
• M9: 3,640,913 km (0.106 R)
• M10: 7,855,384 km (0.083 R)
• M11: 8,107,905 km (0.114 R)
• M12: 11,254,547 km (0.119 R)
• M13: 12,236,358 km (0.11 R)
• M14: 13,203,059 km (0.114 R)
• M15: 15,287,406 km (0.099 R)
• M16: 16,325,765 km (0.065 R)
• M17: 18,453,645 km (0.091 R)
• M18: 20,951,930 km (0.049 R)
• M19: 21,438,123 km (0.098 R)
• M20: 21,733,429 km (0.115 R)
• M21: 21,931,796 km (0.078 R)
• M22: 23,666,982 km (0.12 R)
• M23: 27,989,762 km (0.106 R)
• M24: 29,783,440 km (0.112 R)
• M25: 36,314,883 km (0.096 R)
• M26: 39,468,406 km (0.082 R)
• M27: 41,873,192 km (0.095 R)
• M28: 54,273,210 km (0.1 R)
• M29: 58,382,813 km (0.059 R)
• M30: 61,697,004 km (0.081 R)
• M31: 63,704,009 km (0.116 R)
• M32: 64,518,869 km (0.086 R)
• M33: 66,377,622 km (0.084 R)
• M34: 67,005,036 km (0.117 R)
• M35: 71,947,301 km (0.086 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 411 - 14,762 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit