🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.4

Radius: 12.9

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.59 AU - 0.75 AU

Year: 372 Days

Day: 14.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,271,954 km

• M1: 160,519 km (0.026 R)
• M2: 645,365 km (0.049 R)
• M3: 1,243,158 km (0.061 R)
• M4: 1,830,480 km (0.079 R)
• M5: 2,466,869 km (0.109 R)
• M6: 2,931,370 km (0.076 R)
• M7: 3,733,065 km (0.107 R)
• M8: 4,281,042 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.5

Radius: 11.4

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.7 AU - 1.14 AU

Year: 599 Days

Day: 8.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,271,954 km

• M1: 141,819 km (0.092 R)
• M2: 562,937 km (0.098 R)
• M3: 1,028,934 km (0.097 R)
• M4: 1,752,090 km (0.029 R)
• M5: 2,598,216 km (0.106 R)
• M6: 4,314,552 km (0.059 R)
• M7: 5,086,477 km (0.048 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.6

Radius: 14.3

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.95 AU - 3.05 AU

Year: 2681 Days

Day: 5.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,271,954 km

• M1: 177,872 km (0.098 R)
• M2: 796,459 km (0.101 R)
• M3: 1,303,745 km (0.064 R)
• M4: 4,107,509 km (0.054 R)
• M5: 4,966,949 km (0.116 R)
• M6: 5,572,521 km (0.079 R)
• M7: 6,605,644 km (0.095 R)
• M8: 7,619,917 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.7

Radius: 13.1

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.34 AU - 5.42 AU

Year: 6217 Days

Day: 9.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,271,954 km

• M1: 162,912 km (0.107 R)
• M2: 634,893 km (0.094 R)
• M3: 1,071,719 km (0.094 R)
• M4: 2,559,171 km (0.099 R)
• M5: 3,058,080 km (0.075 R)
• M6: 4,194,276 km (0.098 R)
• M7: 6,968,568 km (0.093 R)
• M8: 8,202,302 km (0.104 R)
• M9: 8,688,345 km (0.035 R)
• M10: 9,471,191 km (0.068 R)
• M11: 10,944,281 km (0.095 R)
• M12: 13,611,312 km (0.075 R)
• M13: 17,204,503 km (0.11 R)
• M14: 18,111,515 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.3

Radius: 9.4

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.85 AU - 6.13 AU

Year: 7560 Days

Day: 5.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,271,954 km

• M1: 116,986 km (0.084 R)
• M2: 563,834 km (0.057 R)
• M3: 1,069,475 km (0.095 R)
• M4: 1,401,134 km (0.062 R)
• M5: 2,574,879 km (0.078 R)
• M6: 3,881,616 km (0.119 R)
• M7: 4,464,449 km (0.113 R)
• M8: 4,791,021 km (0.11 R)
• M9: 5,615,904 km (0.102 R)
• M10: 6,361,799 km (0.059 R)
• M11: 6,776,484 km (0.097 R)
• M12: 7,099,167 km (0.116 R)
• M13: 7,394,772 km (0.099 R)
• M14: 8,535,755 km (0.113 R)
• M15: 9,835,462 km (0.109 R)
• M16: 10,485,165 km (0.114 R)
• M17: 11,412,522 km (0.093 R)
• M18: 12,553,356 km (0.103 R)
• M19: 13,429,550 km (0.073 R)
• M20: 14,700,384 km (0.104 R)
• M21: 17,081,234 km (0.081 R)
• M22: 17,479,314 km (0.095 R)
• M23: 20,740,249 km (0.108 R)
• M24: 21,653,394 km (0.087 R)
• M25: 23,887,788 km (0.025 R)
• M26: 25,317,046 km (0.09 R)
• M27: 26,096,451 km (0.079 R)
• M28: 27,340,357 km (0.043 R)
• M29: 28,345,206 km (0.063 R)
• M30: 32,307,755 km (0.058 R)
• M31: 33,224,640 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99.5

Radius: 7.7

Gravity: 1.68 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 7.1 AU - 10.98 AU

Year: 18435 Days

Day: 16.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,271,954 km

• M1: 99,931 km (0.082 R)
• M2: 644,617 km (0.085 R)
• M3: 898,934 km (0.04 R)
• M4: 1,265,598 km (0.03 R)
• M5: 2,605,995 km (0.084 R)
• M6: 2,855,524 km (0.091 R)
• M7: 6,874,920 km (0.115 R)
• M8: 7,583,415 km (0.054 R)
• M9: 14,674,953 km (0.068 R)
• M10: 20,702,401 km (0.119 R)
• M11: 21,545,983 km (0.092 R)
• M12: 23,796,533 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254

Radius: 6.2

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 9.7 AU - 10.3 AU

Year: 21448 Days

Day: 21.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 57,271,954 km

• M1: 77,043 km (0.044 R)
• M2: 306,975 km (0.069 R)
• M3: 737,368 km (0.073 R)
• M4: 1,401,134 km (0.113 R)
• M5: 1,699,881 km (0.104 R)
• M6: 1,968,858 km (0.119 R)
• M7: 2,405,384 km (0.056 R)
• M8: 2,904,293 km (0.097 R)
• M9: 3,315,687 km (0.089 R)
• M10: 3,602,018 km (0.064 R)
• M11: 3,933,078 km (0.086 R)
• M12: 4,164,954 km (0.064 R)
• M13: 4,498,707 km (0.109 R)
• M14: 4,883,024 km (0.092 R)
• M15: 5,219,769 km (0.099 R)
• M16: 5,939,783 km (0.079 R)
• M17: 6,561,811 km (0.079 R)
• M18: 7,708,778 km (0.117 R)
• M19: 8,212,325 km (0.082 R)
• M20: 10,392,863 km (0.115 R)
• M21: 12,369,500 km (0.085 R)
• M22: 13,708,251 km (0.069 R)
• M23: 14,107,827 km (0.101 R)
• M24: 15,711,816 km (0.112 R)
• M25: 23,917,857 km (0.119 R)
• M26: 29,691,587 km (0.064 R)
• M27: 30,472,787 km (0.098 R)
• M28: 32,426,984 km (0.109 R)
• M29: 34,219,466 km (0.083 R)
• M30: 35,825,399 km (0.1 R)
• M31: 38,788,634 km (0.056 R)
• M32: 45,051,100 km (0.116 R)
• M33: 45,344,162 km (0.09 R)
• M34: 45,933,877 km (0.06 R)
• M35: 50,996,418 km (0.055 R)
• M36: 53,579,525 km (0.096 R)
• M37: 56,758,779 km (0.097 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 11,652 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit