🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.87 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.5 AU - 1.96 AU

Year: 857 Days

Day: 18.2 Hours

Environment

Temp: -55 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.34 AU - 5.26 AU

Year: 3359 Days

Day: 23.4 Hours

Environment

Temp: -130 °C

Axial Tilt: 8.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.76 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.7

Radius: 12.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.18 AU - 6.26 AU

Year: 4493 Days

Day: 11.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,971,315 km

• M1: 150,495 km (0.043 R)
• M2: 560,693 km (0.036 R)
• M3: 1,287,738 km (0.053 R)
• M4: 1,679,685 km (0.047 R)
• M5: 2,421,990 km (0.067 R)
• M6: 3,889,993 km (0.061 R)
• M7: 4,436,474 km (0.077 R)
• M8: 4,930,447 km (0.048 R)
• M9: 5,516,272 km (0.043 R)
• M10: 6,268,001 km (0.067 R)
• M11: 6,924,137 km (0.11 R)
• M12: 7,904,751 km (0.081 R)
• M13: 8,521,544 km (0.056 R)
• M14: 10,480,079 km (0.109 R)
• M15: 11,911,132 km (0.073 R)
• M16: 14,615,562 km (0.059 R)
• M17: 15,713,760 km (0.108 R)
• M18: 16,283,130 km (0.113 R)
• M19: 16,807,171 km (0.075 R)
• M20: 18,074,116 km (0.061 R)
• M21: 22,327,781 km (0.093 R)
• M22: 23,487,165 km (0.059 R)
• M23: 24,838,931 km (0.104 R)
• M24: 25,690,143 km (0.114 R)
• M25: 26,560,803 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819

Radius: 8.6

Gravity: 11.07 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.41 AU - 5.41 AU

Year: 4740 Days

Day: 14.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 62,971,315 km

• M1: 106,962 km (0.107 R)
• M2: 404,812 km (0.112 R)
• M3: 790,924 km (0.077 R)
• M4: 1,372,710 km (0.037 R)
• M5: 1,771,688 km (0.039 R)
• M6: 2,124,290 km (0.118 R)
• M7: 2,557,525 km (0.083 R)
• M8: 3,266,470 km (0.07 R)
• M9: 3,580,027 km (0.104 R)
• M10: 3,890,891 km (0.118 R)
• M11: 4,567,073 km (0.108 R)
• M12: 5,124,026 km (0.081 R)
• M13: 5,490,990 km (0.108 R)
• M14: 6,665,333 km (0.113 R)
• M15: 7,560,078 km (0.086 R)
• M16: 9,713,390 km (0.098 R)
• M17: 11,516,044 km (0.117 R)
• M18: 13,162,518 km (0.106 R)
• M19: 14,790,442 km (0.081 R)
• M20: 18,704,072 km (0.036 R)
• M21: 19,170,070 km (0.099 R)
• M22: 22,130,462 km (0.117 R)
• M23: 24,186,834 km (0.117 R)
• M24: 25,221,004 km (0.066 R)
• M25: 25,953,884 km (0.07 R)
• M26: 27,978,093 km (0.098 R)
• M27: 28,500,040 km (0.097 R)
• M28: 28,940,007 km (0.086 R)
• M29: 30,929,958 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.5

Radius: 8.1

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 4.29 AU - 6.69 AU

Year: 4846 Days

Day: 11 Hours

Environment

Temp: -156 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 62,971,315 km

• M1: 101,278 km (0.104 R)
• M2: 354,996 km (0.058 R)
• M3: 797,207 km (0.102 R)
• M4: 1,162,076 km (0.093 R)
• M5: 1,602,044 km (0.076 R)
• M6: 2,382,496 km (0.082 R)
• M7: 2,781,473 km (0.1 R)
• M8: 3,132,131 km (0.065 R)
• M9: 4,206,692 km (0.047 R)
• M10: 5,590,173 km (0.117 R)
• M11: 5,922,281 km (0.091 R)
• M12: 6,656,507 km (0.117 R)
• M13: 7,029,754 km (0.115 R)
• M14: 7,384,151 km (0.03 R)
• M15: 8,093,993 km (0.083 R)
• M16: 8,848,564 km (0.097 R)
• M17: 10,414,256 km (0.08 R)
• M18: 11,219,242 km (0.074 R)
• M19: 13,096,695 km (0.052 R)
• M20: 15,388,235 km (0.077 R)
• M21: 16,827,367 km (0.108 R)
• M22: 18,719,331 km (0.085 R)
• M23: 22,850,476 km (0.119 R)
• M24: 23,202,181 km (0.111 R)
• M25: 24,279,286 km (0.094 R)
• M26: 24,645,651 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.5

Radius: 9.4

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 4.54 AU - 7.4 AU

Year: 5495 Days

Day: 12.1 Hours

Environment

Temp: -145 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 62,971,315 km

• M1: 116,986 km (0.101 R)
• M2: 462,856 km (0.114 R)
• M3: 786,137 km (0.028 R)
• M4: 1,304,045 km (0.029 R)
• M5: 1,699,282 km (0.117 R)
• M6: 2,132,218 km (0.08 R)
• M7: 2,653,717 km (0.068 R)
• M8: 3,583,467 km (0.084 R)
• M9: 4,598,190 km (0.05 R)
• M10: 5,444,166 km (0.085 R)
• M11: 6,508,704 km (0.109 R)
• M12: 6,996,244 km (0.081 R)
• M13: 7,475,256 km (0.091 R)
• M14: 7,840,424 km (0.087 R)
• M15: 8,322,279 km (0.112 R)
• M16: 10,287,098 km (0.05 R)
• M17: 12,728,984 km (0.06 R)
• M18: 13,786,192 km (0.112 R)
• M19: 14,591,028 km (0.105 R)
• M20: 19,153,315 km (0.029 R)
• M21: 20,091,443 km (0.103 R)
• M22: 21,191,286 km (0.064 R)
• M23: 21,522,346 km (0.104 R)
• M24: 22,536,022 km (0.091 R)
• M25: 23,089,683 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279

Radius: 4.5

Gravity: 13.78 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 13.74 AU - 15.96 AU

Year: 21558 Days

Day: 24.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,971,315 km

• M1: 65,823 km (0.057 R)
• M2: 251,923 km (0.1 R)
• M3: 488,437 km (0.069 R)
• M4: 661,223 km (0.054 R)
• M5: 1,061,546 km (0.086 R)
• M6: 1,314,965 km (0.115 R)
• M7: 1,470,996 km (0.101 R)
• M8: 2,819,770 km (0.084 R)
• M9: 3,904,355 km (0.109 R)
• M10: 4,049,764 km (0.118 R)
• M11: 6,648,279 km (0.084 R)
• M12: 7,110,985 km (0.094 R)
• M13: 7,730,620 km (0.108 R)
• M14: 8,385,409 km (0.1 R)
• M15: 11,734,158 km (0.117 R)
• M16: 11,976,506 km (0.074 R)
• M17: 13,304,636 km (0.12 R)
• M18: 13,768,240 km (0.09 R)
• M19: 13,970,197 km (0.074 R)
• M20: 16,702,752 km (0.101 R)
• M21: 17,713,734 km (0.109 R)
• M22: 18,682,530 km (0.102 R)
• M23: 19,942,593 km (0.112 R)
• M24: 20,287,865 km (0.108 R)
• M25: 23,100,754 km (0.057 R)
• M26: 26,369,467 km (0.09 R)
• M27: 27,737,540 km (0.1 R)
• M28: 30,843,341 km (0.109 R)
• M29: 32,006,464 km (0.094 R)
• M30: 34,792,126 km (0.101 R)
• M31: 40,013,990 km (0.107 R)
• M32: 42,525,140 km (0.114 R)
• M33: 49,573,443 km (0.106 R)
• M34: 50,206,841 km (0.106 R)
• M35: 54,793,063 km (0.046 R)
• M36: 56,496,384 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.2

Radius: 8

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 13.93 AU - 20.33 AU

Year: 26709 Days

Day: 15.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,971,315 km

• M1: 100,380 km (0.117 R)
• M2: 482,902 km (0.059 R)
• M3: 929,152 km (0.072 R)
• M4: 1,297,313 km (0.069 R)
• M5: 2,251,298 km (0.101 R)
• M6: 2,738,090 km (0.089 R)
• M7: 3,216,653 km (0.098 R)
• M8: 4,958,272 km (0.087 R)
• M9: 6,011,740 km (0.119 R)
• M10: 11,860,119 km (0.066 R)
• M11: 16,006,224 km (0.118 R)
• M12: 27,328,240 km (0.102 R)
• M13: 30,211,589 km (0.086 R)
• M14: 34,279,903 km (0.1 R)
• M15: 38,970,245 km (0.115 R)
• M16: 41,610,199 km (0.106 R)
• M17: 48,333,576 km (0.073 R)
• M18: 58,733,171 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 158.3

Radius: 4.6

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 17.72 AU - 20.38 AU

Year: 31323 Days

Day: 24.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,971,315 km

• M1: 57,745 km (0.093 R)
• M2: 205,248 km (0.108 R)
• M3: 1,755,830 km (0.063 R)
• M4: 3,760,591 km (0.11 R)
• M5: 5,129,412 km (0.12 R)
• M6: 9,963,966 km (0.106 R)
• M7: 11,586,205 km (0.055 R)
• M8: 14,763,066 km (0.1 R)
• M9: 20,724,990 km (0.116 R)
• M10: 23,150,570 km (0.111 R)
• M11: 27,893,570 km (0.093 R)
• M12: 33,245,284 km (0.095 R)
• M13: 43,077,754 km (0.106 R)
• M14: 50,662,665 km (0.107 R)
• M15: 53,998,249 km (0.087 R)
• M16: 58,369,798 km (0.094 R)
• M17: 59,634,798 km (0.104 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 15,952 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit