🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.5

Radius: 13.7

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.43 AU - 0.69 AU

Year: 289 Days

Day: 6.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 56.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,221,609 km

• M1: 170,392 km (0.091 R)
• M2: 607,218 km (0.042 R)
• M3: 1,159,533 km (0.039 R)
• M4: 1,942,977 km (0.111 R)
• M5: 2,385,637 km (0.113 R)
• M6: 2,817,825 km (0.11 R)
• M7: 3,652,881 km (0.109 R)
• M8: 4,193,528 km (0.098 R)
• M9: 4,633,644 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.5

Radius: 9.4

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.08 AU - 1.18 AU

Year: 829 Days

Day: 6.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,221,609 km

• M1: 116,836 km (0.088 R)
• M2: 493,224 km (0.088 R)
• M3: 839,543 km (0.063 R)
• M4: 1,370,765 km (0.1 R)
• M5: 2,010,147 km (0.054 R)
• M6: 2,341,506 km (0.072 R)
• M7: 2,647,134 km (0.078 R)
• M8: 2,957,251 km (0.04 R)
• M9: 3,437,609 km (0.048 R)
• M10: 3,969,131 km (0.103 R)
• M11: 4,845,026 km (0.069 R)
• M12: 5,582,544 km (0.105 R)
• M13: 6,336,667 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.8

Radius: 11.5

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.18 AU - 1.18 AU

Year: 885 Days

Day: 14.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,221,609 km

• M1: 143,016 km (0.052 R)
• M2: 689,646 km (0.06 R)
• M3: 1,421,180 km (0.084 R)
• M4: 2,126,683 km (0.047 R)
• M5: 2,514,441 km (0.107 R)
• M6: 2,899,057 km (0.119 R)
• M7: 3,309,105 km (0.11 R)
• M8: 3,973,918 km (0.075 R)
• M9: 4,602,977 km (0.092 R)
• M10: 6,690,765 km (0.081 R)
• M11: 8,108,354 km (0.115 R)
• M12: 8,765,837 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.3

Radius: 11

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.12 AU - 1.48 AU

Year: 1023 Days

Day: 13.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,221,609 km

• M1: 136,732 km (0.118 R)
• M2: 497,862 km (0.096 R)
• M3: 914,641 km (0.045 R)
• M4: 1,323,193 km (0.063 R)
• M5: 1,711,400 km (0.066 R)
• M6: 2,404,487 km (0.078 R)
• M7: 2,888,884 km (0.111 R)
• M8: 3,349,945 km (0.109 R)
• M9: 3,818,934 km (0.086 R)
• M10: 4,666,706 km (0.116 R)
• M11: 5,287,387 km (0.088 R)
• M12: 6,111,372 km (0.109 R)
• M13: 6,534,884 km (0.025 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.7

Radius: 14.7

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.81 AU - 2.67 AU

Year: 2314 Days

Day: 5.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 17,221,609 km

• M1: 182,809 km (0.037 R)
• M2: 714,928 km (0.12 R)
• M3: 1,531,882 km (0.092 R)
• M4: 2,085,544 km (0.095 R)
• M5: 2,848,044 km (0.111 R)
• M6: 3,922,755 km (0.095 R)
• M7: 4,628,558 km (0.117 R)
• M8: 6,035,825 km (0.111 R)
• M9: 7,325,209 km (0.113 R)
• M10: 7,926,742 km (0.114 R)
• M11: 10,407,973 km (0.115 R)
• M12: 11,287,159 km (0.105 R)
• M13: 12,423,804 km (0.12 R)
• M14: 13,020,251 km (0.057 R)
• M15: 13,860,093 km (0.081 R)
• M16: 15,452,862 km (0.042 R)
• M17: 18,175,094 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.1

Radius: 8.4

Gravity: 10.21 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 2.25 AU - 2.55 AU

Year: 2566 Days

Day: 9.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,221,609 km

• M1: 105,018 km (0.111 R)
• M2: 552,914 km (0.054 R)
• M3: 820,993 km (0.119 R)
• M4: 1,292,825 km (0.088 R)
• M5: 1,841,400 km (0.084 R)
• M6: 2,283,163 km (0.101 R)
• M7: 2,625,891 km (0.083 R)
• M8: 3,361,763 km (0.091 R)
• M9: 4,187,095 km (0.092 R)
• M10: 6,206,367 km (0.067 R)
• M11: 8,070,207 km (0.045 R)
• M12: 10,432,357 km (0.066 R)
• M13: 12,213,021 km (0.086 R)
• M14: 12,600,928 km (0.113 R)
• M15: 15,004,517 km (0.117 R)
• M16: 15,852,438 km (0.112 R)
• M17: 18,644,532 km (0.038 R)
• M18: 19,624,099 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.5

Radius: 7.1

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.68 AU - 5.86 AU

Year: 9567 Days

Day: 19.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 17,221,609 km

• M1: 88,861 km (0.113 R)
• M2: 484,548 km (0.116 R)
• M3: 783,893 km (0.1 R)
• M4: 1,005,746 km (0.101 R)
• M5: 1,419,833 km (0.08 R)
• M6: 3,280,233 km (0.109 R)
• M7: 4,165,403 km (0.054 R)
• M8: 5,142,427 km (0.108 R)
• M9: 6,132,017 km (0.08 R)
• M10: 6,882,400 km (0.111 R)
• M11: 7,353,783 km (0.117 R)
• M12: 10,981,980 km (0.108 R)
• M13: 12,664,357 km (0.088 R)
• M14: 14,570,234 km (0.087 R)
• M15: 15,105,047 km (0.088 R)
• M16: 15,468,869 km (0.063 R)
• M17: 16,531,462 km (0.109 R)
• M18: 17,842,688 km (0.097 R)
• M19: 19,010,748 km (0.099 R)
• M20: 19,292,740 km (0.056 R)
• M21: 21,270,424 km (0.069 R)
• M22: 21,958,574 km (0.115 R)
• M23: 22,269,139 km (0.112 R)
• M24: 23,058,417 km (0.115 R)
• M25: 23,703,184 km (0.103 R)
• M26: 24,860,324 km (0.089 R)
• M27: 29,771,771 km (0.032 R)
• M28: 30,056,905 km (0.085 R)
• M29: 30,923,226 km (0.115 R)
• M30: 32,104,002 km (0.091 R)
• M31: 33,519,198 km (0.057 R)
• M32: 34,764,900 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 21.3

Radius: 4.9

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 5.23 AU - 8.35 AU

Year: 12213 Days

Day: 19 Hours

Environment

Temp: -234 °C

Axial Tilt: 169.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,221,609 km

• M1: 63,878 km (0.088 R)
• M2: 1,110,465 km (0.08 R)
• M3: 1,562,999 km (0.114 R)
• M4: 1,923,380 km (0.064 R)
• M5: 2,501,875 km (0.098 R)
• M6: 2,733,153 km (0.12 R)
• M7: 2,900,553 km (0.05 R)
• M8: 3,975,264 km (0.043 R)
• M9: 4,392,941 km (0.083 R)
• M10: 6,023,109 km (0.077 R)
• M11: 10,451,655 km (0.037 R)
• M12: 14,088,080 km (0.091 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: 434 - 15,840 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit