🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.45 AU - 0.65 AU

Year: 259 Days

Day: 40.2 Hours

Environment

Temp: -119 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.53 AU - 0.73 AU

Year: 318 Days

Day: 41.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.53 AU - 0.79 AU

Year: 341 Days

Day: 15 Hours

Environment

Temp: -144 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.8

Radius: 14.9

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.84 AU - 1.34 AU

Year: 724 Days

Day: 11.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,992,526 km

• M1: 190,139 km (0.112 R)
• M2: 835,953 km (0.119 R)
• M3: 1,314,068 km (0.096 R)
• M4: 1,835,267 km (0.086 R)
• M5: 2,642,796 km (0.089 R)
• M6: 3,269,761 km (0.053 R)
• M7: 4,083,423 km (0.037 R)
• M8: 4,854,750 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.4

Radius: 13.7

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.06 AU - 3.14 AU

Year: 3470 Days

Day: 5.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,992,526 km

• M1: 170,392 km (0.062 R)
• M2: 617,839 km (0.055 R)
• M3: 1,281,755 km (0.108 R)
• M4: 2,138,352 km (0.108 R)
• M5: 2,848,044 km (0.116 R)
• M6: 3,555,642 km (0.112 R)
• M7: 4,741,056 km (0.101 R)
• M8: 5,712,245 km (0.067 R)
• M9: 6,401,891 km (0.089 R)
• M10: 8,015,005 km (0.062 R)
• M11: 8,597,090 km (0.114 R)
• M12: 10,880,852 km (0.078 R)
• M13: 12,386,255 km (0.05 R)
• M14: 12,979,560 km (0.085 R)
• M15: 14,570,833 km (0.103 R)
• M16: 17,112,949 km (0.108 R)
• M17: 18,725,465 km (0.055 R)
• M18: 19,937,955 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.7

Radius: 9.8

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.09 AU - 6.41 AU

Year: 8767 Days

Day: 14.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,992,526 km

• M1: 121,922 km (0.063 R)
• M2: 650,302 km (0.094 R)
• M3: 1,317,359 km (0.12 R)
• M4: 4,123,067 km (0.107 R)
• M5: 6,689,718 km (0.09 R)
• M6: 8,912,443 km (0.116 R)
• M7: 11,722,340 km (0.11 R)
• M8: 14,703,526 km (0.044 R)
• M9: 16,171,530 km (0.092 R)
• M10: 17,028,127 km (0.09 R)
• M11: 17,497,117 km (0.085 R)
• M12: 18,522,610 km (0.117 R)
• M13: 21,159,721 km (0.028 R)
• M14: 23,456,647 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.3

Radius: 7.1

Gravity: 15.99 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 6.61 AU - 6.89 AU

Year: 11150 Days

Day: 16.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 56,992,526 km

• M1: 106,214 km (0.101 R)
• M2: 421,268 km (0.108 R)
• M3: 793,467 km (0.116 R)
• M4: 1,281,007 km (0.118 R)
• M5: 1,614,759 km (0.11 R)
• M6: 1,868,627 km (0.09 R)
• M7: 2,378,008 km (0.106 R)
• M8: 5,874,409 km (0.115 R)
• M9: 6,920,697 km (0.093 R)
• M10: 7,295,439 km (0.116 R)
• M11: 7,905,499 km (0.116 R)
• M12: 8,501,797 km (0.066 R)
• M13: 10,044,599 km (0.102 R)
• M14: 11,765,424 km (0.089 R)
• M15: 14,803,607 km (0.118 R)
• M16: 15,496,544 km (0.083 R)
• M17: 18,249,145 km (0.108 R)
• M18: 18,644,383 km (0.112 R)
• M19: 18,964,821 km (0.053 R)
• M20: 20,199,153 km (0.108 R)
• M21: 21,838,297 km (0.11 R)
• M22: 22,194,340 km (0.09 R)
• M23: 23,844,704 km (0.094 R)
• M24: 27,491,152 km (0.088 R)
• M25: 29,284,531 km (0.077 R)
• M26: 31,042,456 km (0.103 R)
• M27: 33,220,002 km (0.11 R)
• M28: 37,367,155 km (0.089 R)
• M29: 38,133,096 km (0.111 R)
• M30: 41,709,981 km (0.039 R)
• M31: 42,811,320 km (0.115 R)
• M32: 44,214,997 km (0.09 R)
• M33: 45,939,561 km (0.116 R)
• M34: 47,262,156 km (0.049 R)
• M35: 47,559,407 km (0.054 R)
• M36: 49,522,430 km (0.072 R)
• M37: 52,011,888 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 551.4

Radius: 5.2

Gravity: 20.39 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 5.73 AU - 7.81 AU

Year: 11200 Days

Day: 22.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 56,992,526 km

• M1: 64,626 km (0.106 R)
• M2: 240,105 km (0.03 R)
• M3: 448,794 km (0.113 R)
• M4: 687,851 km (0.039 R)
• M5: 1,509,293 km (0.112 R)
• M6: 2,088,536 km (0.114 R)
• M7: 2,516,984 km (0.027 R)
• M8: 2,869,736 km (0.119 R)
• M9: 3,092,338 km (0.047 R)
• M10: 3,829,855 km (0.051 R)
• M11: 4,239,753 km (0.063 R)
• M12: 4,469,984 km (0.112 R)
• M13: 4,769,629 km (0.104 R)
• M14: 5,276,766 km (0.04 R)
• M15: 5,611,416 km (0.1 R)
• M16: 6,176,298 km (0.11 R)
• M17: 8,318,838 km (0.057 R)
• M18: 10,385,982 km (0.102 R)
• M19: 12,129,994 km (0.119 R)
• M20: 13,011,125 km (0.04 R)
• M21: 13,192,288 km (0.091 R)
• M22: 14,251,142 km (0.083 R)
• M23: 15,164,736 km (0.068 R)
• M24: 15,567,902 km (0.118 R)
• M25: 16,678,218 km (0.115 R)
• M26: 17,252,674 km (0.111 R)
• M27: 20,486,980 km (0.065 R)
• M28: 23,206,669 km (0.091 R)
• M29: 27,822,661 km (0.098 R)
• M30: 33,239,450 km (0.112 R)
• M31: 33,919,672 km (0.112 R)
• M32: 37,704,199 km (0.063 R)
• M33: 38,072,808 km (0.106 R)
• M34: 41,499,197 km (0.1 R)
• M35: 42,023,687 km (0.082 R)
• M36: 42,685,508 km (0.091 R)
• M37: 45,402,355 km (0.075 R)
• M38: 46,944,560 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 711.5

Radius: 4.9

Gravity: 29.63 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 5.65 AU - 9.09 AU

Year: 12721 Days

Day: 23 Hours

Environment

Temp: -219 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 56,992,526 km

• M1: 61,036 km (0.087 R)
• M2: 427,252 km (0.096 R)
• M3: 658,979 km (0.074 R)
• M4: 1,297,313 km (0.061 R)
• M5: 1,692,102 km (0.105 R)
• M6: 1,909,018 km (0.092 R)
• M7: 2,259,377 km (0.092 R)
• M8: 4,013,561 km (0.097 R)
• M9: 4,779,502 km (0.104 R)
• M10: 5,638,643 km (0.113 R)
• M11: 6,162,385 km (0.113 R)
• M12: 7,480,492 km (0.101 R)
• M13: 8,536,802 km (0.041 R)
• M14: 9,899,190 km (0.115 R)
• M15: 10,112,666 km (0.101 R)
• M16: 12,919,871 km (0.117 R)
• M17: 13,239,262 km (0.11 R)
• M18: 13,433,290 km (0.115 R)
• M19: 13,960,324 km (0.117 R)
• M20: 14,432,455 km (0.088 R)
• M21: 15,840,470 km (0.059 R)
• M22: 17,492,329 km (0.099 R)
• M23: 17,726,151 km (0.1 R)
• M24: 20,958,362 km (0.025 R)
• M25: 21,133,990 km (0.071 R)
• M26: 21,399,227 km (0.107 R)
• M27: 22,117,447 km (0.076 R)
• M28: 22,574,319 km (0.113 R)
• M29: 24,078,974 km (0.104 R)
• M30: 24,562,474 km (0.105 R)
• M31: 25,850,063 km (0.119 R)
• M32: 26,664,474 km (0.102 R)
• M33: 30,880,441 km (0.056 R)
• M34: 31,451,157 km (0.09 R)
• M35: 40,467,122 km (0.085 R)
• M36: 40,739,539 km (0.082 R)
• M37: 42,399,627 km (0.045 R)
• M38: 42,821,642 km (0.119 R)
• M39: 50,430,340 km (0.091 R)
• M40: 51,062,540 km (0.112 R)
• M41: 52,020,864 km (0.102 R)
• M42: 54,468,884 km (0.108 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: 340 - 14,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit