🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.53 AU - 0.67 AU

Year: 300 Days

Day: 29 Hours

Environment

Temp: -130 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.9

Radius: 13.3

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.89 AU - 0.93 AU

Year: 561 Days

Day: 9.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 20,592,539 km

• M1: 165,455 km (0.101 R)
• M2: 588,069 km (0.106 R)
• M3: 1,207,404 km (0.071 R)
• M4: 1,735,634 km (0.115 R)
• M5: 2,277,777 km (0.118 R)
• M6: 3,111,636 km (0.061 R)
• M7: 4,882,874 km (0.104 R)
• M8: 5,312,968 km (0.064 R)
• M9: 5,996,481 km (0.102 R)
• M10: 6,511,247 km (0.065 R)
• M11: 7,077,026 km (0.028 R)
• M12: 7,698,306 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.7

Radius: 9.7

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.96 AU - 1.02 AU

Year: 636 Days

Day: 9.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 20,592,539 km

• M1: 120,576 km (0.096 R)
• M2: 428,747 km (0.073 R)
• M3: 757,564 km (0.119 R)
• M4: 1,269,188 km (0.084 R)
• M5: 1,853,069 km (0.118 R)
• M6: 2,174,255 km (0.112 R)
• M7: 2,575,327 km (0.112 R)
• M8: 3,194,962 km (0.12 R)
• M9: 3,567,161 km (0.107 R)
• M10: 4,461,009 km (0.065 R)
• M11: 4,977,420 km (0.087 R)
• M12: 5,497,423 km (0.087 R)
• M13: 6,544,608 km (0.052 R)
• M14: 7,169,179 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.5

Radius: 13.6

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 1.04 AU - 1.26 AU

Year: 796 Days

Day: 11 Hours

Environment

Temp: -169 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,592,539 km

• M1: 171,589 km (0.103 R)
• M2: 632,051 km (0.065 R)
• M3: 1,157,588 km (0.057 R)
• M4: 2,094,819 km (0.044 R)
• M5: 3,007,067 km (0.06 R)
• M6: 4,074,298 km (0.052 R)
• M7: 4,515,612 km (0.107 R)
• M8: 5,457,031 km (0.06 R)
• M9: 6,224,767 km (0.058 R)
• M10: 6,903,493 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.8

Radius: 13.2

Gravity: 3.17 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.09 AU - 2.79 AU

Year: 2461 Days

Day: 12.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,592,539 km

• M1: 167,699 km (0.06 R)
• M2: 587,321 km (0.094 R)
• M3: 1,071,869 km (0.1 R)
• M4: 1,592,320 km (0.1 R)
• M5: 2,632,025 km (0.079 R)
• M6: 3,098,322 km (0.095 R)
• M7: 3,549,359 km (0.054 R)
• M8: 4,219,707 km (0.118 R)
• M9: 6,089,830 km (0.045 R)
• M10: 6,969,316 km (0.094 R)
• M11: 7,483,783 km (0.056 R)
• M12: 8,209,183 km (0.117 R)
• M13: 12,561,284 km (0.105 R)
• M14: 13,195,729 km (0.104 R)
• M15: 13,718,723 km (0.041 R)
• M16: 14,210,302 km (0.091 R)
• M17: 14,946,174 km (0.049 R)
• M18: 15,466,625 km (0.091 R)
• M19: 17,410,649 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.1

Radius: 14.6

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.64 AU - 4.18 AU

Year: 4992 Days

Day: 8.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 20,592,539 km

• M1: 190,288 km (0.073 R)
• M2: 721,211 km (0.055 R)
• M3: 1,345,034 km (0.106 R)
• M4: 1,912,459 km (0.085 R)
• M5: 2,372,921 km (0.112 R)
• M6: 2,853,280 km (0.037 R)
• M7: 4,399,225 km (0.08 R)
• M8: 5,328,527 km (0.092 R)
• M9: 6,163,283 km (0.116 R)
• M10: 8,793,064 km (0.103 R)
• M11: 10,223,219 km (0.092 R)
• M12: 10,947,722 km (0.034 R)
• M13: 11,513,501 km (0.118 R)
• M14: 13,974,386 km (0.072 R)
• M15: 14,640,695 km (0.12 R)
• M16: 15,857,973 km (0.109 R)
• M17: 17,905,668 km (0.026 R)
• M18: 19,708,023 km (0.12 R)
• M19: 23,206,220 km (0.105 R)
• M20: 26,004,747 km (0.072 R)
• M21: 30,107,170 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.6

Radius: 11.5

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.87 AU - 5.49 AU

Year: 7612 Days

Day: 8 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 20,592,539 km

• M1: 143,016 km (0.102 R)
• M2: 531,072 km (0.089 R)
• M3: 939,175 km (0.115 R)
• M4: 2,649,827 km (0.065 R)
• M5: 3,121,060 km (0.082 R)
• M6: 3,510,912 km (0.082 R)
• M7: 4,285,381 km (0.061 R)
• M8: 4,686,004 km (0.116 R)
• M9: 5,625,329 km (0.104 R)
• M10: 6,073,973 km (0.1 R)
• M11: 6,685,828 km (0.094 R)
• M12: 7,226,774 km (0.116 R)
• M13: 7,835,936 km (0.119 R)
• M14: 8,813,409 km (0.119 R)
• M15: 10,008,247 km (0.041 R)
• M16: 10,765,512 km (0.036 R)
• M17: 13,549,229 km (0.059 R)
• M18: 17,044,284 km (0.082 R)
• M19: 17,850,018 km (0.038 R)
• M20: 19,106,042 km (0.108 R)
• M21: 20,871,147 km (0.089 R)
• M22: 25,322,432 km (0.112 R)
• M23: 25,755,966 km (0.089 R)
• M24: 29,310,262 km (0.029 R)
• M25: 33,386,206 km (0.055 R)
• M26: 34,647,166 km (0.073 R)
• M27: 35,074,418 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.2

Radius: 7.7

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 5.8 AU - 8.06 AU

Year: 11779 Days

Day: 21.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 20,592,539 km

• M1: 97,837 km (0.103 R)
• M2: 346,319 km (0.083 R)
• M3: 723,754 km (0.054 R)
• M4: 982,858 km (0.033 R)
• M5: 1,339,799 km (0.108 R)
• M6: 1,959,283 km (0.114 R)
• M7: 2,334,176 km (0.031 R)
• M8: 2,814,983 km (0.102 R)
• M9: 4,023,884 km (0.107 R)
• M10: 5,865,882 km (0.116 R)
• M11: 7,230,215 km (0.111 R)
• M12: 7,611,689 km (0.088 R)
• M13: 9,009,981 km (0.118 R)
• M14: 11,314,835 km (0.086 R)
• M15: 12,413,332 km (0.119 R)
• M16: 16,198,457 km (0.109 R)
• M17: 19,278,678 km (0.114 R)
• M18: 21,071,309 km (0.071 R)
• M19: 23,053,929 km (0.07 R)
• M20: 23,382,297 km (0.102 R)
• M21: 28,032,846 km (0.087 R)
• M22: 33,684,205 km (0.064 R)
• M23: 34,001,053 km (0.107 R)
• M24: 35,180,034 km (0.093 R)
• M25: 36,496,944 km (0.106 R)
• M26: 37,619,227 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.5

Radius: 7.9

Gravity: 14.7 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 6.77 AU - 9.47 AU

Year: 14940 Days

Day: 24.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 20,592,539 km

• M1: 99,483 km (0.037 R)
• M2: 556,354 km (0.115 R)
• M3: 926,310 km (0.068 R)
• M4: 1,228,199 km (0.066 R)
• M5: 1,762,562 km (0.12 R)
• M6: 2,192,506 km (0.032 R)
• M7: 2,443,532 km (0.066 R)
• M8: 3,157,113 km (0.119 R)
• M9: 4,251,721 km (0.12 R)
• M10: 5,813,224 km (0.11 R)
• M11: 6,381,546 km (0.102 R)
• M12: 7,534,796 km (0.099 R)
• M13: 8,160,863 km (0.112 R)
• M14: 8,461,405 km (0.072 R)
• M15: 9,516,669 km (0.108 R)
• M16: 9,793,574 km (0.104 R)
• M17: 10,363,692 km (0.087 R)
• M18: 12,142,710 km (0.044 R)
• M19: 13,275,315 km (0.1 R)
• M20: 14,331,925 km (0.099 R)
• M21: 16,771,417 km (0.086 R)
• M22: 18,600,850 km (0.092 R)
• M23: 19,474,800 km (0.115 R)
• M24: 21,022,989 km (0.086 R)
• M25: 22,067,481 km (0.08 R)
• M26: 23,446,325 km (0.105 R)
• M27: 28,153,122 km (0.066 R)
• M28: 28,955,715 km (0.12 R)
• M29: 35,934,456 km (0.098 R)
• M30: 39,098,750 km (0.054 R)
• M31: 48,544,359 km (0.1 R)
• M32: 66,195,562 km (0.087 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.2

Radius: 3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 8.73 AU - 12.97 AU

Year: 23076 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 20,592,539 km

• M1: 50,863 km (0.107 R)
• M2: 881,431 km (0.053 R)
• M3: 13,807,734 km (0.109 R)
• M4: 15,072,135 km (0.094 R)
• M5: 17,439,222 km (0.098 R)
• M6: 17,940,525 km (0.063 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: 314 - 20,002 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit