🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.6

Radius: 9.9

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.08 AU - 1.08 AU

Year: 714 Days

Day: 5.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,811,513 km

• M1: 123,119 km (0.055 R)
• M2: 522,545 km (0.115 R)
• M3: 953,088 km (0.091 R)
• M4: 1,551,330 km (0.034 R)
• M5: 2,094,520 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.9

Radius: 12.4

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.98 AU - 1.44 AU

Year: 846 Days

Day: 5.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,811,513 km

• M1: 154,385 km (0.105 R)
• M2: 593,006 km (0.069 R)
• M3: 1,040,902 km (0.101 R)
• M4: 1,427,164 km (0.062 R)
• M5: 1,880,296 km (0.115 R)
• M6: 2,337,317 km (0.082 R)
• M7: 3,008,264 km (0.054 R)
• M8: 3,614,733 km (0.117 R)
• M9: 4,529,674 km (0.095 R)
• M10: 5,010,930 km (0.068 R)
• M11: 5,593,165 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.2

Radius: 13

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.96 AU - 4 AU

Year: 4128 Days

Day: 5.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,811,513 km

• M1: 166,203 km (0.112 R)
• M2: 739,163 km (0.083 R)
• M3: 1,858,305 km (0.031 R)
• M4: 2,371,425 km (0.074 R)
• M5: 3,165,341 km (0.08 R)
• M6: 3,971,375 km (0.076 R)
• M7: 4,387,406 km (0.084 R)
• M8: 6,201,131 km (0.091 R)
• M9: 8,968,991 km (0.1 R)
• M10: 9,731,491 km (0.116 R)
• M11: 11,898,267 km (0.105 R)
• M12: 13,787,389 km (0.108 R)
• M13: 14,913,412 km (0.094 R)
• M14: 16,925,054 km (0.075 R)
• M15: 17,902,527 km (0.118 R)
• M16: 19,176,801 km (0.12 R)
• M17: 22,408,415 km (0.091 R)
• M18: 23,437,349 km (0.071 R)
• M19: 23,963,485 km (0.093 R)
• M20: 24,497,399 km (0.046 R)
• M21: 26,713,243 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.9

Radius: 13.4

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.04 AU - 4.88 AU

Year: 5989 Days

Day: 8.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,811,513 km

• M1: 166,652 km (0.087 R)
• M2: 694,882 km (0.098 R)
• M3: 1,235,678 km (0.113 R)
• M4: 2,214,198 km (0.113 R)
• M5: 2,979,391 km (0.082 R)
• M6: 3,721,696 km (0.089 R)
• M7: 4,535,658 km (0.097 R)
• M8: 5,437,883 km (0.069 R)
• M9: 6,364,492 km (0.109 R)
• M10: 6,801,766 km (0.08 R)
• M11: 7,948,584 km (0.065 R)
• M12: 9,063,985 km (0.055 R)
• M13: 10,537,225 km (0.107 R)
• M14: 11,286,112 km (0.081 R)
• M15: 16,027,467 km (0.072 R)
• M16: 18,361,044 km (0.103 R)
• M17: 20,913,034 km (0.084 R)
• M18: 24,217,203 km (0.072 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.6

Radius: 3.8

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.31 AU - 7.27 AU

Year: 11250 Days

Day: 19.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,811,513 km

• M1: 50,265 km (0.111 R)
• M2: 173,534 km (0.047 R)
• M3: 673,041 km (0.118 R)
• M4: 831,166 km (0.093 R)
• M5: 1,110,315 km (0.12 R)
• M6: 1,538,165 km (0.108 R)
• M7: 1,714,990 km (0.098 R)
• M8: 2,039,917 km (0.075 R)
• M9: 2,759,931 km (0.077 R)
• M10: 3,021,727 km (0.035 R)
• M11: 6,377,507 km (0.116 R)
• M12: 6,897,060 km (0.081 R)
• M13: 13,389,159 km (0.041 R)
• M14: 14,702,329 km (0.103 R)
• M15: 16,098,825 km (0.092 R)
• M16: 18,843,348 km (0.037 R)
• M17: 21,884,074 km (0.096 R)
• M18: 23,986,822 km (0.053 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.9

Radius: 6.7

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 6.8 AU - 7.3 AU

Year: 11902 Days

Day: 24.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,811,513 km

• M1: 83,326 km (0.091 R)
• M2: 731,384 km (0.106 R)
• M3: 1,422,676 km (0.064 R)
• M4: 2,022,713 km (0.107 R)
• M5: 2,432,312 km (0.108 R)
• M6: 2,955,306 km (0.102 R)
• M7: 5,121,184 km (0.112 R)
• M8: 7,215,255 km (0.103 R)
• M9: 9,033,318 km (0.036 R)
• M10: 9,957,085 km (0.078 R)
• M11: 10,893,867 km (0.038 R)
• M12: 12,460,007 km (0.064 R)
• M13: 17,713,884 km (0.088 R)
• M14: 19,155,708 km (0.116 R)
• M15: 26,226,452 km (0.08 R)
• M16: 32,195,407 km (0.042 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695

Radius: 7.2

Gravity: 13.41 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 9.05 AU - 9.59 AU

Year: 18091 Days

Day: 23.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 61,811,513 km

• M1: 91,703 km (0.064 R)
• M2: 376,687 km (0.071 R)
• M3: 652,396 km (0.066 R)
• M4: 1,052,421 km (0.11 R)
• M5: 1,591,123 km (0.06 R)
• M6: 2,017,926 km (0.092 R)
• M7: 2,279,572 km (0.089 R)
• M8: 2,586,846 km (0.116 R)
• M9: 3,591,097 km (0.114 R)
• M10: 3,825,816 km (0.106 R)
• M11: 4,229,132 km (0.11 R)
• M12: 4,869,261 km (0.101 R)
• M13: 5,120,735 km (0.069 R)
• M14: 8,910,498 km (0.102 R)
• M15: 11,843,065 km (0.085 R)
• M16: 12,365,311 km (0.093 R)
• M17: 14,242,016 km (0.097 R)
• M18: 18,549,986 km (0.115 R)
• M19: 20,998,305 km (0.085 R)
• M20: 21,570,367 km (0.078 R)
• M21: 22,845,091 km (0.104 R)
• M22: 23,962,437 km (0.06 R)
• M23: 28,564,217 km (0.112 R)
• M24: 28,913,828 km (0.073 R)
• M25: 33,078,184 km (0.095 R)
• M26: 33,334,894 km (0.065 R)
• M27: 35,975,745 km (0.118 R)
• M28: 39,468,705 km (0.093 R)
• M29: 40,779,632 km (0.099 R)
• M30: 44,261,223 km (0.104 R)
• M31: 46,796,757 km (0.042 R)
• M32: 48,927,031 km (0.107 R)
• M33: 50,779,352 km (0.108 R)
• M34: 59,032,816 km (0.097 R)
• M35: 70,656,870 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.8

Radius: 5.6

Gravity: 13.51 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.24 AU - 11.76 AU

Year: 18617 Days

Day: 17.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 61,811,513 km

• M1: 70,012 km (0.055 R)
• M2: 261,796 km (0.108 R)
• M3: 454,329 km (0.116 R)
• M4: 1,439,580 km (0.06 R)
• M5: 2,017,926 km (0.119 R)
• M6: 4,676,729 km (0.113 R)
• M7: 5,081,989 km (0.119 R)
• M8: 7,649,238 km (0.088 R)
• M9: 8,068,561 km (0.091 R)
• M10: 8,952,984 km (0.117 R)
• M11: 10,510,896 km (0.04 R)
• M12: 14,152,856 km (0.069 R)
• M13: 16,028,365 km (0.08 R)
• M14: 18,226,705 km (0.051 R)
• M15: 21,066,073 km (0.072 R)
• M16: 27,603,051 km (0.114 R)
• M17: 28,256,794 km (0.119 R)
• M18: 32,038,478 km (0.095 R)
• M19: 45,985,637 km (0.099 R)
• M20: 50,699,616 km (0.078 R)
• M21: 51,844,040 km (0.03 R)
• M22: 56,769,101 km (0.071 R)
• M23: 58,537,048 km (0.11 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 11,138 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit