🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.59 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.17 AU - 1.17 AU

Year: 443 Days

Day: 42.8 Hours

Environment

Temp: 19 °C

Axial Tilt: 19.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.86 AU - 5.22 AU

Year: 3384 Days

Day: 21 Hours

Environment

Temp: -133 °C

Axial Tilt: 47 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,575,141 km

• M1: 63,280 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 628.3

Radius: 11.1

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.6 AU - 6.68 AU

Year: 4686 Days

Day: 13.7 Hours

Environment

Temp: -128 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,575,141 km

• M1: 138,079 km (0.084 R)
• M2: 496,216 km (0.063 R)
• M3: 931,247 km (0.054 R)
• M4: 1,357,451 km (0.099 R)
• M5: 1,835,117 km (0.083 R)
• M6: 2,376,512 km (0.092 R)
• M7: 3,153,374 km (0.086 R)
• M8: 3,781,685 km (0.068 R)
• M9: 4,516,061 km (0.114 R)
• M10: 4,995,671 km (0.112 R)
• M11: 6,360,153 km (0.089 R)
• M12: 7,675,268 km (0.115 R)
• M13: 10,617,110 km (0.115 R)
• M14: 10,969,862 km (0.117 R)
• M15: 11,839,026 km (0.099 R)
• M16: 13,051,816 km (0.108 R)
• M17: 13,662,624 km (0.06 R)
• M18: 14,186,216 km (0.06 R)
• M19: 18,548,939 km (0.061 R)
• M20: 21,068,317 km (0.08 R)
• M21: 22,482,017 km (0.061 R)
• M22: 23,508,707 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.9

Radius: 9

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.22 AU - 7.58 AU

Year: 6341 Days

Day: 10.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 38,575,141 km

• M1: 111,899 km (0.051 R)
• M2: 461,509 km (0.117 R)
• M3: 855,101 km (0.101 R)
• M4: 1,517,072 km (0.037 R)
• M5: 2,236,787 km (0.092 R)
• M6: 2,947,976 km (0.093 R)
• M7: 3,420,855 km (0.109 R)
• M8: 5,322,393 km (0.088 R)
• M9: 6,250,797 km (0.069 R)
• M10: 9,081,937 km (0.075 R)
• M11: 9,815,864 km (0.111 R)
• M12: 10,129,421 km (0.092 R)
• M13: 10,588,836 km (0.099 R)
• M14: 11,014,143 km (0.112 R)
• M15: 12,671,987 km (0.03 R)
• M16: 13,205,602 km (0.106 R)
• M17: 13,921,727 km (0.092 R)
• M18: 14,203,869 km (0.114 R)
• M19: 14,605,390 km (0.089 R)
• M20: 19,395,813 km (0.101 R)
• M21: 21,952,440 km (0.065 R)
• M22: 24,234,556 km (0.097 R)
• M23: 24,808,114 km (0.116 R)
• M24: 26,153,448 km (0.118 R)
• M25: 27,546,653 km (0.053 R)
• M26: 29,821,737 km (0.061 R)
• M27: 32,416,213 km (0.025 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.9

Radius: 13.3

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 7.64 AU - 8.32 AU

Year: 7886 Days

Day: 9.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,575,141 km

• M1: 165,754 km (0.11 R)
• M2: 590,014 km (0.118 R)
• M3: 1,698,684 km (0.053 R)
• M4: 2,306,949 km (0.089 R)
• M5: 2,722,382 km (0.086 R)
• M6: 3,686,840 km (0.097 R)
• M7: 4,642,620 km (0.074 R)
• M8: 5,073,911 km (0.119 R)
• M9: 6,018,023 km (0.105 R)
• M10: 6,470,407 km (0.079 R)
• M11: 6,977,993 km (0.06 R)
• M12: 8,549,818 km (0.091 R)
• M13: 10,261,816 km (0.075 R)
• M14: 10,690,862 km (0.097 R)
• M15: 14,675,252 km (0.111 R)
• M16: 17,906,117 km (0.112 R)
• M17: 19,819,025 km (0.102 R)
• M18: 21,167,800 km (0.063 R)
• M19: 22,361,591 km (0.104 R)
• M20: 26,212,838 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.3

Radius: 9.2

Gravity: 6.77 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 7.96 AU - 11.78 AU

Year: 10848 Days

Day: 12.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 38,575,141 km

• M1: 188,643 km (0.104 R)
• M2: 866,770 km (0.11 R)
• M3: 1,323,492 km (0.101 R)
• M4: 1,630,018 km (0.08 R)
• M5: 2,119,503 km (0.09 R)
• M6: 2,766,513 km (0.073 R)
• M7: 3,321,970 km (0.064 R)
• M8: 4,392,193 km (0.114 R)
• M9: 6,575,126 km (0.078 R)
• M10: 8,424,903 km (0.106 R)
• M11: 10,136,153 km (0.059 R)
• M12: 12,010,615 km (0.094 R)
• M13: 13,545,190 km (0.1 R)
• M14: 15,139,903 km (0.037 R)
• M15: 15,948,330 km (0.048 R)
• M16: 16,643,810 km (0.111 R)
• M17: 17,872,158 km (0.11 R)
• M18: 18,851,426 km (0.116 R)
• M19: 19,393,419 km (0.114 R)
• M20: 20,346,657 km (0.039 R)
• M21: 22,518,519 km (0.065 R)
• M22: 25,680,270 km (0.09 R)
• M23: 26,442,471 km (0.091 R)
• M24: 27,219,632 km (0.106 R)
• M25: 34,566,682 km (0.103 R)
• M26: 41,944,251 km (0.1 R)
• M27: 42,735,025 km (0.109 R)
• M28: 44,482,777 km (0.054 R)
• M29: 47,121,983 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.2

Radius: 7.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 12 AU - 15.42 AU

Year: 17760 Days

Day: 15.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 38,575,141 km

• M1: 93,349 km (0.093 R)
• M2: 497,413 km (0.106 R)
• M3: 746,493 km (0.102 R)
• M4: 1,185,114 km (0.099 R)
• M5: 4,429,294 km (0.106 R)
• M6: 4,704,255 km (0.116 R)
• M7: 5,441,922 km (0.12 R)
• M8: 7,107,844 km (0.096 R)
• M9: 7,447,281 km (0.114 R)
• M10: 8,699,715 km (0.038 R)
• M11: 10,275,878 km (0.106 R)
• M12: 10,515,683 km (0.117 R)
• M13: 11,257,539 km (0.045 R)
• M14: 11,512,454 km (0.047 R)
• M15: 11,875,677 km (0.114 R)
• M16: 12,193,274 km (0.073 R)
• M17: 12,570,709 km (0.116 R)
• M18: 12,845,221 km (0.084 R)
• M19: 13,292,519 km (0.066 R)
• M20: 13,634,948 km (0.098 R)
• M21: 13,983,063 km (0.101 R)
• M22: 14,576,517 km (0.119 R)
• M23: 16,069,504 km (0.059 R)
• M24: 20,619,972 km (0.06 R)
• M25: 21,544,637 km (0.098 R)
• M26: 23,311,387 km (0.101 R)
• M27: 24,061,172 km (0.108 R)
• M28: 30,648,714 km (0.036 R)
• M29: 36,757,394 km (0.061 R)

Kuiper Belt

Range: 31.4 - 58.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 251 - 15,381 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit