🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.52 AU - 0.74 AU

Year: 323 Days

Day: 33.7 Hours

Environment

Temp: -134 °C

Axial Tilt: 28.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.4

Radius: 13.5

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.76 AU - 1.12 AU

Year: 588 Days

Day: 5.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 63,906,531 km

• M1: 167,998 km (0.047 R)
• M2: 603,328 km (0.046 R)
• M3: 1,064,987 km (0.1 R)
• M4: 1,734,887 km (0.1 R)
• M5: 2,159,445 km (0.106 R)
• M6: 2,902,199 km (0.08 R)
• M7: 3,408,587 km (0.085 R)
• M8: 4,228,833 km (0.09 R)
• M9: 4,678,524 km (0.087 R)
• M10: 5,692,797 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.9

Radius: 12.8

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.24 AU - 1.38 AU

Year: 968 Days

Day: 11.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,906,531 km

• M1: 159,322 km (0.12 R)
• M2: 607,517 km (0.076 R)
• M3: 1,335,011 km (0.103 R)
• M4: 2,155,556 km (0.071 R)
• M5: 2,697,399 km (0.094 R)
• M6: 3,760,442 km (0.087 R)
• M7: 4,166,301 km (0.086 R)
• M8: 4,978,767 km (0.079 R)
• M9: 5,993,639 km (0.027 R)
• M10: 6,571,984 km (0.08 R)
• M11: 7,255,347 km (0.098 R)
• M12: 7,721,045 km (0.032 R)
• M13: 8,457,067 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.5

Radius: 14.1

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.32 AU - 1.36 AU

Year: 1002 Days

Day: 8.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,906,531 km

• M1: 176,825 km (0.107 R)
• M2: 1,090,568 km (0.107 R)
• M3: 2,015,083 km (0.094 R)
• M4: 2,722,980 km (0.098 R)
• M5: 3,231,912 km (0.107 R)
• M6: 4,317,245 km (0.084 R)
• M7: 5,670,956 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.4

Radius: 10.4

Gravity: 8.53 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.93 AU - 4.43 AU

Year: 4558 Days

Day: 6.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 63,906,531 km

• M1: 130,001 km (0.054 R)
• M2: 524,191 km (0.117 R)
• M3: 1,068,428 km (0.096 R)
• M4: 1,514,379 km (0.074 R)
• M5: 2,475,546 km (0.105 R)
• M6: 3,207,977 km (0.075 R)
• M7: 3,870,247 km (0.09 R)
• M8: 4,883,323 km (0.055 R)
• M9: 5,524,500 km (0.059 R)
• M10: 6,315,873 km (0.073 R)
• M11: 7,250,710 km (0.09 R)
• M12: 7,788,215 km (0.09 R)
• M13: 9,064,285 km (0.118 R)
• M14: 9,773,827 km (0.075 R)
• M15: 11,782,328 km (0.104 R)
• M16: 12,780,595 km (0.102 R)
• M17: 13,726,502 km (0.119 R)
• M18: 15,231,756 km (0.088 R)
• M19: 16,355,236 km (0.071 R)
• M20: 18,045,393 km (0.079 R)
• M21: 19,506,366 km (0.107 R)
• M22: 21,188,294 km (0.104 R)
• M23: 21,990,737 km (0.066 R)
• M24: 23,967,823 km (0.103 R)
• M25: 27,321,807 km (0.068 R)
• M26: 30,791,131 km (0.079 R)
• M27: 31,256,231 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.1

Radius: 14.2

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.62 AU - 4.26 AU

Year: 5050 Days

Day: 14 Hours

Environment

Temp: -216 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,906,531 km

• M1: 176,675 km (0.09 R)
• M2: 636,988 km (0.12 R)
• M3: 1,439,730 km (0.106 R)
• M4: 2,897,262 km (0.085 R)
• M5: 4,038,993 km (0.073 R)
• M6: 4,688,098 km (0.103 R)
• M7: 8,230,276 km (0.038 R)
• M8: 12,309,960 km (0.09 R)
• M9: 13,997,125 km (0.094 R)
• M10: 14,592,375 km (0.078 R)
• M11: 17,826,531 km (0.107 R)
• M12: 20,598,280 km (0.1 R)
• M13: 24,569,206 km (0.118 R)
• M14: 28,246,920 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.9

Radius: 9.4

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 4.07 AU - 6.59 AU

Year: 7945 Days

Day: 5.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,906,531 km

• M1: 116,986 km (0.113 R)
• M2: 650,152 km (0.064 R)
• M3: 991,235 km (0.091 R)
• M4: 1,641,537 km (0.11 R)
• M5: 2,569,493 km (0.096 R)
• M6: 4,069,361 km (0.093 R)
• M7: 5,236,374 km (0.025 R)
• M8: 5,580,599 km (0.106 R)
• M9: 6,024,905 km (0.118 R)
• M10: 6,492,548 km (0.074 R)
• M11: 7,015,991 km (0.099 R)
• M12: 7,336,878 km (0.111 R)
• M13: 11,722,788 km (0.096 R)
• M14: 12,313,550 km (0.12 R)
• M15: 13,019,802 km (0.085 R)
• M16: 15,141,100 km (0.069 R)
• M17: 16,790,715 km (0.085 R)
• M18: 17,192,236 km (0.104 R)
• M19: 21,033,610 km (0.111 R)
• M20: 21,634,994 km (0.051 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 685.1

Radius: 4.3

Gravity: 37.05 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.89 AU - 6.27 AU

Year: 9680 Days

Day: 21.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,906,531 km

• M1: 58,942 km (0.057 R)
• M2: 313,258 km (0.11 R)
• M3: 1,104,182 km (0.045 R)
• M4: 1,293,423 km (0.048 R)
• M5: 1,768,097 km (0.074 R)
• M6: 2,149,572 km (0.095 R)
• M7: 2,644,741 km (0.111 R)
• M8: 3,402,304 km (0.112 R)
• M9: 3,599,624 km (0.068 R)
• M10: 5,945,319 km (0.081 R)
• M11: 6,565,701 km (0.103 R)
• M12: 8,822,086 km (0.104 R)
• M13: 14,335,366 km (0.111 R)
• M14: 22,373,409 km (0.08 R)
• M15: 25,045,526 km (0.114 R)
• M16: 27,037,721 km (0.115 R)
• M17: 34,666,913 km (0.11 R)
• M18: 36,181,741 km (0.079 R)
• M19: 37,861,875 km (0.112 R)
• M20: 46,207,491 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 134.1

Radius: 5.8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 5.94 AU - 7.66 AU

Year: 11449 Days

Day: 15.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,906,531 km

• M1: 72,106 km (0.077 R)
• M2: 258,356 km (0.075 R)
• M3: 541,245 km (0.059 R)
• M4: 934,388 km (0.092 R)
• M5: 1,397,543 km (0.042 R)
• M6: 2,859,713 km (0.087 R)
• M7: 3,328,852 km (0.057 R)
• M8: 3,647,196 km (0.106 R)
• M9: 3,962,548 km (0.1 R)
• M10: 5,819,058 km (0.073 R)
• M11: 6,187,069 km (0.069 R)
• M12: 7,209,869 km (0.071 R)
• M13: 9,049,026 km (0.047 R)
• M14: 9,839,351 km (0.116 R)
• M15: 10,629,826 km (0.074 R)
• M16: 10,994,396 km (0.092 R)
• M17: 11,461,740 km (0.063 R)
• M18: 11,700,349 km (0.067 R)
• M19: 12,039,936 km (0.111 R)
• M20: 13,411,748 km (0.099 R)
• M21: 14,053,673 km (0.073 R)
• M22: 15,340,813 km (0.082 R)
• M23: 16,221,496 km (0.099 R)
• M24: 16,643,810 km (0.094 R)
• M25: 17,197,622 km (0.114 R)
• M26: 18,998,930 km (0.1 R)
• M27: 21,135,636 km (0.103 R)
• M28: 23,047,198 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 701.1

Radius: 7.6

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 7.98 AU - 8.46 AU

Year: 15217 Days

Day: 22.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,906,531 km

• M1: 95,294 km (0.102 R)
• M2: 492,027 km (0.052 R)
• M3: 764,744 km (0.074 R)
• M4: 1,079,648 km (0.071 R)
• M5: 1,322,894 km (0.118 R)
• M6: 2,032,586 km (0.117 R)
• M7: 2,925,386 km (0.098 R)
• M8: 3,223,086 km (0.029 R)
• M9: 5,642,233 km (0.065 R)
• M10: 6,065,894 km (0.058 R)
• M11: 8,023,233 km (0.072 R)
• M12: 9,275,666 km (0.094 R)
• M13: 10,538,422 km (0.089 R)
• M14: 10,885,938 km (0.084 R)
• M15: 13,809,080 km (0.105 R)
• M16: 15,010,202 km (0.094 R)
• M17: 17,297,403 km (0.069 R)
• M18: 19,632,626 km (0.083 R)
• M19: 19,982,536 km (0.115 R)
• M20: 21,331,908 km (0.118 R)
• M21: 23,813,139 km (0.116 R)
• M22: 24,411,829 km (0.052 R)
• M23: 26,374,254 km (0.117 R)
• M24: 35,925,929 km (0.12 R)
• M25: 37,512,414 km (0.098 R)
• M26: 39,978,685 km (0.107 R)
• M27: 41,825,769 km (0.104 R)
• M28: 42,551,170 km (0.079 R)
• M29: 44,626,690 km (0.112 R)
• M30: 48,818,273 km (0.075 R)
• M31: 50,598,787 km (0.052 R)
• M32: 56,199,133 km (0.118 R)
• M33: 56,904,936 km (0.112 R)
• M34: 58,876,037 km (0.116 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 20,130 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit