🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.4 AU - 0.62 AU

Year: 235 Days

Day: 33.1 Hours

Environment

Temp: -123 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.4

Radius: 14.1

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.84 AU - 1.16 AU

Year: 646 Days

Day: 14.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,622,217 km

• M1: 175,329 km (0.099 R)
• M2: 632,500 km (0.115 R)
• M3: 1,216,081 km (0.066 R)
• M4: 1,968,858 km (0.108 R)
• M5: 2,735,247 km (0.111 R)
• M6: 3,332,293 km (0.069 R)
• M7: 3,858,877 km (0.082 R)
• M8: 4,569,916 km (0.11 R)
• M9: 5,270,632 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.5

Radius: 14.2

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.01 AU - 1.67 AU

Year: 1002 Days

Day: 7.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,622,217 km

• M1: 177,722 km (0.101 R)
• M2: 657,183 km (0.109 R)
• M3: 1,160,879 km (0.094 R)
• M4: 2,086,591 km (0.107 R)
• M5: 3,225,330 km (0.069 R)
• M6: 3,942,053 km (0.071 R)
• M7: 4,569,317 km (0.046 R)
• M8: 5,436,985 km (0.06 R)
• M9: 6,701,386 km (0.083 R)
• M10: 7,282,873 km (0.03 R)
• M11: 7,872,738 km (0.047 R)
• M12: 9,719,374 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.3

Radius: 10.7

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.34 AU - 1.44 AU

Year: 1058 Days

Day: 9.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,622,217 km

• M1: 134,937 km (0.064 R)
• M2: 517,758 km (0.054 R)
• M3: 904,469 km (0.097 R)
• M4: 1,245,103 km (0.109 R)
• M5: 1,914,105 km (0.114 R)
• M6: 2,407,479 km (0.117 R)
• M7: 3,096,078 km (0.116 R)
• M8: 3,699,107 km (0.089 R)
• M9: 4,325,024 km (0.12 R)
• M10: 4,748,835 km (0.114 R)
• M11: 5,810,232 km (0.054 R)
• M12: 6,420,441 km (0.115 R)
• M13: 7,325,509 km (0.103 R)
• M14: 7,795,695 km (0.073 R)
• M15: 8,257,952 km (0.057 R)
• M16: 9,000,556 km (0.069 R)
• M17: 9,448,751 km (0.084 R)
• M18: 9,849,374 km (0.079 R)
• M19: 10,325,544 km (0.077 R)
• M20: 11,953,468 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.3

Radius: 11.6

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.21 AU - 1.95 AU

Year: 1282 Days

Day: 13.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,622,217 km

• M1: 144,212 km (0.12 R)
• M2: 528,230 km (0.085 R)
• M3: 1,056,460 km (0.09 R)
• M4: 1,548,338 km (0.068 R)
• M5: 2,490,057 km (0.073 R)
• M6: 3,116,273 km (0.097 R)
• M7: 3,482,489 km (0.064 R)
• M8: 4,481,503 km (0.026 R)
• M9: 5,247,445 km (0.092 R)
• M10: 5,619,644 km (0.116 R)
• M11: 6,487,461 km (0.073 R)
• M12: 6,941,491 km (0.106 R)
• M13: 8,743,397 km (0.082 R)
• M14: 9,238,865 km (0.086 R)
• M15: 10,511,195 km (0.107 R)
• M16: 11,308,253 km (0.083 R)
• M17: 11,721,741 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.6

Radius: 11.6

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 2.75 AU - 3.11 AU

Year: 3238 Days

Day: 14.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,622,217 km

• M1: 144,212 km (0.104 R)
• M2: 565,181 km (0.097 R)
• M3: 1,118,094 km (0.06 R)
• M4: 1,817,913 km (0.112 R)
• M5: 2,917,009 km (0.112 R)
• M6: 4,309,915 km (0.079 R)
• M7: 5,947,712 km (0.065 R)
• M8: 6,849,488 km (0.115 R)
• M9: 7,439,053 km (0.077 R)
• M10: 7,840,275 km (0.115 R)
• M11: 8,288,470 km (0.03 R)
• M12: 9,846,382 km (0.113 R)
• M13: 12,688,742 km (0.099 R)
• M14: 13,854,259 km (0.099 R)
• M15: 14,943,630 km (0.112 R)
• M16: 18,275,175 km (0.052 R)
• M17: 18,780,367 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.4

Radius: 9.5

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.09 AU - 4.11 AU

Year: 5360 Days

Day: 7.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,622,217 km

• M1: 118,182 km (0.073 R)
• M2: 439,070 km (0.116 R)
• M3: 903,571 km (0.101 R)
• M4: 1,510,191 km (0.082 R)
• M5: 1,931,309 km (0.088 R)
• M6: 2,235,291 km (0.118 R)
• M7: 2,994,501 km (0.068 R)
• M8: 3,523,030 km (0.106 R)
• M9: 4,385,162 km (0.107 R)
• M10: 5,763,856 km (0.106 R)
• M11: 8,130,195 km (0.048 R)
• M12: 10,068,385 km (0.077 R)
• M13: 10,607,985 km (0.115 R)
• M14: 11,386,941 km (0.083 R)
• M15: 11,926,989 km (0.109 R)
• M16: 12,864,968 km (0.111 R)
• M17: 13,352,059 km (0.096 R)
• M18: 14,781,616 km (0.045 R)
• M19: 15,697,903 km (0.105 R)
• M20: 19,872,581 km (0.078 R)
• M21: 20,196,461 km (0.08 R)
• M22: 22,492,937 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 354.8

Radius: 6.1

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 5.67 AU - 8.27 AU

Year: 11881 Days

Day: 24.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,622,217 km

• M1: 75,846 km (0.118 R)
• M2: 522,396 km (0.078 R)
• M3: 749,336 km (0.074 R)
• M4: 943,364 km (0.08 R)
• M5: 1,310,926 km (0.072 R)
• M6: 2,103,795 km (0.077 R)
• M7: 2,367,237 km (0.085 R)
• M8: 3,551,154 km (0.05 R)
• M9: 4,437,970 km (0.117 R)
• M10: 5,727,055 km (0.1 R)
• M11: 6,863,550 km (0.096 R)
• M12: 7,405,394 km (0.101 R)
• M13: 11,165,387 km (0.112 R)
• M14: 13,451,392 km (0.067 R)
• M15: 15,309,397 km (0.033 R)
• M16: 16,776,204 km (0.105 R)
• M17: 24,017,789 km (0.085 R)
• M18: 28,657,866 km (0.089 R)
• M19: 29,652,542 km (0.047 R)
• M20: 30,876,253 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.7

Radius: 8

Gravity: 8.14 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 6.21 AU - 7.85 AU

Year: 12035 Days

Day: 20.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 60,622,217 km

• M1: 99,483 km (0.092 R)
• M2: 550,371 km (0.093 R)
• M3: 1,316,760 km (0.095 R)
• M4: 1,628,672 km (0.116 R)
• M5: 1,907,074 km (0.092 R)
• M6: 3,553,997 km (0.109 R)
• M7: 4,193,528 km (0.069 R)
• M8: 4,938,974 km (0.12 R)
• M9: 7,537,040 km (0.085 R)
• M10: 9,392,502 km (0.115 R)
• M11: 9,737,176 km (0.051 R)
• M12: 10,090,376 km (0.066 R)
• M13: 11,366,596 km (0.101 R)
• M14: 11,871,937 km (0.102 R)
• M15: 12,568,764 km (0.109 R)
• M16: 13,231,333 km (0.113 R)
• M17: 17,334,354 km (0.067 R)
• M18: 18,003,805 km (0.057 R)
• M19: 18,613,266 km (0.114 R)
• M20: 19,553,190 km (0.101 R)
• M21: 23,811,942 km (0.053 R)
• M22: 25,200,958 km (0.117 R)
• M23: 27,334,822 km (0.099 R)
• M24: 28,139,659 km (0.105 R)
• M25: 29,272,264 km (0.088 R)
• M26: 29,902,520 km (0.087 R)
• M27: 30,434,789 km (0.087 R)
• M28: 33,646,805 km (0.106 R)
• M29: 37,322,724 km (0.038 R)
• M30: 41,521,039 km (0.118 R)
• M31: 45,321,423 km (0.112 R)
• M32: 46,448,344 km (0.115 R)
• M33: 48,028,247 km (0.088 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.2

Radius: 3.9

Gravity: 23.94 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 9.64 AU - 9.76 AU

Year: 19506 Days

Day: 21.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,622,217 km

• M1: 48,470 km (0.072 R)
• M2: 233,223 km (0.072 R)
• M3: 650,452 km (0.048 R)
• M4: 814,710 km (0.116 R)
• M5: 1,137,841 km (0.036 R)
• M6: 1,321,996 km (0.113 R)
• M7: 3,294,145 km (0.082 R)
• M8: 7,711,471 km (0.093 R)
• M9: 10,858,113 km (0.085 R)
• M10: 13,797,561 km (0.07 R)
• M11: 15,194,805 km (0.086 R)
• M12: 19,347,941 km (0.066 R)
• M13: 26,325,336 km (0.077 R)
• M14: 37,643,611 km (0.077 R)
• M15: 37,776,006 km (0.116 R)
• M16: 38,308,574 km (0.073 R)
• M17: 38,442,464 km (0.1 R)
• M18: 41,187,286 km (0.115 R)
• M19: 53,473,011 km (0.085 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 358 - 11,776 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit