🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.47 AU - 0.67 AU

Year: 274 Days

Day: 28.2 Hours

Environment

Temp: -127 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,430,597 km

• M1: 14,960 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.2

Radius: 9.6

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.55 AU - 0.83 AU

Year: 364 Days

Day: 12.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 60,430,597 km

• M1: 119,379 km (0.064 R)
• M2: 503,846 km (0.094 R)
• M3: 939,774 km (0.109 R)
• M4: 1,833,023 km (0.075 R)
• M5: 2,152,414 km (0.075 R)
• M6: 2,478,538 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.1

Radius: 11

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.98 AU - 1.24 AU

Year: 744 Days

Day: 5.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 160.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,430,597 km

• M1: 136,732 km (0.088 R)
• M2: 751,580 km (0.118 R)
• M3: 1,155,644 km (0.087 R)
• M4: 1,579,305 km (0.111 R)
• M5: 1,949,559 km (0.077 R)
• M6: 2,652,520 km (0.099 R)
• M7: 3,556,091 km (0.094 R)
• M8: 4,172,584 km (0.109 R)
• M9: 4,716,073 km (0.095 R)
• M10: 5,137,490 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 314.7

Radius: 12

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 3.18 AU - 3.62 AU

Year: 3986 Days

Day: 6.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,430,597 km

• M1: 149,598 km (0.078 R)
• M2: 581,038 km (0.064 R)
• M3: 980,016 km (0.059 R)
• M4: 1,470,098 km (0.098 R)
• M5: 2,403,589 km (0.105 R)
• M6: 4,212,078 km (0.106 R)
• M7: 6,681,041 km (0.109 R)
• M8: 7,417,062 km (0.049 R)
• M9: 8,672,488 km (0.084 R)
• M10: 9,297,508 km (0.078 R)
• M11: 10,027,096 km (0.03 R)
• M12: 10,482,921 km (0.103 R)
• M13: 12,231,272 km (0.064 R)
• M14: 13,062,736 km (0.044 R)
• M15: 17,142,869 km (0.054 R)
• M16: 18,184,220 km (0.079 R)
• M17: 18,978,135 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.5

Radius: 8.5

Gravity: 12.96 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.18 AU - 4.72 AU

Year: 4991 Days

Day: 6.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,430,597 km

• M1: 105,766 km (0.102 R)
• M2: 388,954 km (0.102 R)
• M3: 886,367 km (0.083 R)
• M4: 2,085,095 km (0.104 R)
• M5: 2,833,533 km (0.104 R)
• M6: 3,290,704 km (0.08 R)
• M7: 3,704,642 km (0.092 R)
• M8: 4,055,748 km (0.119 R)
• M9: 4,716,970 km (0.113 R)
• M10: 5,130,160 km (0.115 R)
• M11: 7,422,149 km (0.069 R)
• M12: 8,252,567 km (0.09 R)
• M13: 9,018,358 km (0.109 R)
• M14: 9,874,806 km (0.078 R)
• M15: 10,277,523 km (0.096 R)
• M16: 11,211,612 km (0.08 R)
• M17: 14,581,454 km (0.078 R)
• M18: 15,162,642 km (0.112 R)
• M19: 16,872,545 km (0.065 R)
• M20: 20,526,623 km (0.086 R)
• M21: 21,628,262 km (0.115 R)
• M22: 22,004,052 km (0.116 R)
• M23: 22,537,518 km (0.039 R)
• M24: 24,109,193 km (0.093 R)
• M25: 26,175,139 km (0.069 R)
• M26: 27,207,365 km (0.09 R)
• M27: 29,536,903 km (0.11 R)
• M28: 29,906,709 km (0.098 R)
• M29: 31,512,941 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 177.6

Radius: 9.2

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.74 AU - 6.16 AU

Year: 7002 Days

Day: 8.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,430,597 km

• M1: 115,938 km (0.107 R)
• M2: 484,697 km (0.118 R)
• M3: 815,308 km (0.037 R)
• M4: 1,215,034 km (0.03 R)
• M5: 1,504,655 km (0.079 R)
• M6: 1,791,883 km (0.119 R)
• M7: 2,403,888 km (0.096 R)
• M8: 3,448,381 km (0.119 R)
• M9: 5,559,057 km (0.099 R)
• M10: 5,914,651 km (0.028 R)
• M11: 8,663,512 km (0.083 R)
• M12: 9,067,576 km (0.117 R)
• M13: 13,437,180 km (0.11 R)
• M14: 13,879,541 km (0.116 R)
• M15: 14,382,489 km (0.09 R)
• M16: 15,855,579 km (0.079 R)
• M17: 17,426,806 km (0.095 R)
• M18: 19,658,656 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.5

Radius: 9.8

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.96 AU - 6.28 AU

Year: 7366 Days

Day: 6.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,430,597 km

• M1: 122,221 km (0.056 R)
• M2: 506,389 km (0.052 R)
• M3: 904,319 km (0.116 R)
• M4: 2,869,736 km (0.104 R)
• M5: 3,760,292 km (0.114 R)
• M6: 4,740,757 km (0.057 R)
• M7: 5,054,314 km (0.097 R)
• M8: 5,473,487 km (0.061 R)
• M9: 7,274,645 km (0.1 R)
• M10: 8,248,677 km (0.092 R)
• M11: 9,395,943 km (0.094 R)
• M12: 9,938,684 km (0.115 R)
• M13: 11,641,706 km (0.084 R)
• M14: 11,952,122 km (0.059 R)
• M15: 13,361,783 km (0.061 R)
• M16: 15,492,056 km (0.066 R)
• M17: 15,931,276 km (0.075 R)
• M18: 16,834,398 km (0.055 R)
• M19: 19,313,384 km (0.035 R)
• M20: 19,822,167 km (0.106 R)
• M21: 20,639,869 km (0.078 R)
• M22: 22,822,502 km (0.101 R)
• M23: 24,472,865 km (0.094 R)
• M24: 24,897,574 km (0.074 R)
• M25: 25,761,801 km (0.118 R)
• M26: 26,289,881 km (0.032 R)
• M27: 26,824,993 km (0.112 R)
• M28: 27,367,584 km (0.041 R)
• M29: 28,849,949 km (0.1 R)
• M30: 31,173,055 km (0.097 R)
• M31: 36,188,024 km (0.085 R)
• M32: 36,628,739 km (0.103 R)
• M33: 37,184,645 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 575.7

Radius: 7.1

Gravity: 11.42 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 6.13 AU - 6.31 AU

Year: 9863 Days

Day: 23.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,430,597 km

• M1: 90,956 km (0.116 R)
• M2: 404,961 km (0.045 R)
• M3: 683,812 km (0.071 R)
• M4: 1,059,751 km (0.076 R)
• M5: 1,681,330 km (0.032 R)
• M6: 1,989,801 km (0.067 R)
• M7: 5,579,851 km (0.069 R)
• M8: 6,672,813 km (0.098 R)
• M9: 7,612,138 km (0.101 R)
• M10: 8,070,955 km (0.098 R)
• M11: 9,416,288 km (0.103 R)
• M12: 14,340,601 km (0.084 R)
• M13: 15,235,197 km (0.089 R)
• M14: 15,629,686 km (0.08 R)
• M15: 16,302,428 km (0.115 R)
• M16: 22,905,678 km (0.111 R)
• M17: 25,297,898 km (0.093 R)
• M18: 40,037,028 km (0.116 R)
• M19: 43,624,085 km (0.049 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.5

Radius: 4.1

Gravity: 44.77 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.11 AU - 7.87 AU

Year: 11750 Days

Day: 15.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,430,597 km

• M1: 52,808 km (0.115 R)
• M2: 222,153 km (0.101 R)
• M3: 636,838 km (0.068 R)
• M4: 1,311,375 km (0.047 R)
• M5: 2,349,883 km (0.113 R)
• M6: 2,726,571 km (0.117 R)
• M7: 3,787,968 km (0.081 R)
• M8: 4,395,185 km (0.075 R)
• M9: 4,770,078 km (0.113 R)
• M10: 8,714,974 km (0.11 R)
• M11: 9,662,078 km (0.114 R)
• M12: 21,898,286 km (0.058 R)
• M13: 24,204,337 km (0.061 R)
• M14: 32,198,997 km (0.115 R)
• M15: 36,533,595 km (0.094 R)
• M16: 39,762,216 km (0.078 R)
• M17: 40,834,235 km (0.074 R)
• M18: 45,460,250 km (0.061 R)
• M19: 51,995,882 km (0.119 R)
• M20: 52,954,804 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334.5

Radius: 6.2

Gravity: 8.7 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.84 AU - 10.26 AU

Year: 20257 Days

Day: 17.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,430,597 km

• M1: 77,193 km (0.112 R)
• M2: 338,540 km (0.108 R)
• M3: 1,187,657 km (0.114 R)
• M4: 1,772,735 km (0.033 R)
• M5: 2,092,126 km (0.09 R)
• M6: 3,575,240 km (0.046 R)
• M7: 4,056,795 km (0.075 R)
• M8: 14,600,752 km (0.074 R)
• M9: 17,349,763 km (0.118 R)
• M10: 19,391,026 km (0.053 R)
• M11: 20,956,268 km (0.102 R)
• M12: 25,742,951 km (0.038 R)
• M13: 26,570,826 km (0.099 R)
• M14: 33,475,964 km (0.111 R)
• M15: 42,338,292 km (0.084 R)
• M16: 45,858,330 km (0.108 R)
• M17: 48,310,388 km (0.072 R)
• M18: 59,889,114 km (0.084 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 18,781 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit