🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.7

Radius: 13

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.53 AU - 0.53 AU

Year: 266 Days

Day: 10.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 36,497,672 km

• M1: 162,314 km (0.104 R)
• M2: 577,298 km (0.072 R)
• M3: 1,016,069 km (0.111 R)
• M4: 2,171,114 km (0.056 R)
• M5: 3,486,528 km (0.082 R)
• M6: 4,019,096 km (0.082 R)
• M7: 4,592,355 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.2

Radius: 12.5

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.62 AU - 0.68 AU

Year: 362 Days

Day: 14.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,497,672 km

• M1: 155,582 km (0.058 R)
• M2: 696,228 km (0.077 R)
• M3: 1,111,363 km (0.069 R)
• M4: 1,745,807 km (0.091 R)
• M5: 2,139,848 km (0.06 R)
• M6: 2,530,598 km (0.057 R)
• M7: 3,304,916 km (0.093 R)
• M8: 3,771,961 km (0.051 R)
• M9: 4,192,780 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.5

Radius: 13.2

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.67 AU - 0.71 AU

Year: 396 Days

Day: 11.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 165 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,497,672 km

• M1: 164,109 km (0.11 R)
• M2: 592,856 km (0.102 R)
• M3: 1,090,718 km (0.052 R)
• M4: 1,731,446 km (0.113 R)
• M5: 2,244,118 km (0.104 R)
• M6: 2,654,614 km (0.064 R)
• M7: 3,127,044 km (0.079 R)
• M8: 3,844,964 km (0.114 R)
• M9: 4,496,314 km (0.119 R)
• M10: 5,078,848 km (0.12 R)
• M11: 5,899,093 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743

Radius: 13.8

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.59 AU - 0.87 AU

Year: 431 Days

Day: 12.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,497,672 km

• M1: 171,589 km (0.068 R)
• M2: 645,515 km (0.065 R)
• M3: 1,705,266 km (0.082 R)
• M4: 2,420,942 km (0.092 R)
• M5: 3,181,199 km (0.109 R)
• M6: 4,095,990 km (0.115 R)
• M7: 4,542,988 km (0.115 R)
• M8: 6,014,433 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.6

Radius: 14.5

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.91 AU - 1.99 AU

Year: 1880 Days

Day: 8.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 36,497,672 km

• M1: 180,415 km (0.117 R)
• M2: 654,042 km (0.032 R)
• M3: 1,144,125 km (0.119 R)
• M4: 1,774,081 km (0.09 R)
• M5: 2,576,674 km (0.117 R)
• M6: 3,180,750 km (0.097 R)
• M7: 3,842,122 km (0.071 R)
• M8: 4,313,505 km (0.096 R)
• M9: 5,038,905 km (0.112 R)
• M10: 6,761,525 km (0.044 R)
• M11: 7,226,774 km (0.057 R)
• M12: 8,130,943 km (0.089 R)
• M13: 9,576,208 km (0.082 R)
• M14: 10,999,333 km (0.1 R)
• M15: 11,529,358 km (0.086 R)
• M16: 12,276,151 km (0.085 R)
• M17: 13,054,957 km (0.042 R)
• M18: 13,649,759 km (0.035 R)
• M19: 14,440,982 km (0.076 R)
• M20: 15,971,069 km (0.052 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182

Radius: 9

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.64 AU - 2.3 AU

Year: 1909 Days

Day: 6.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 36,497,672 km

• M1: 112,049 km (0.096 R)
• M2: 488,287 km (0.112 R)
• M3: 966,701 km (0.103 R)
• M4: 1,397,693 km (0.108 R)
• M5: 1,747,453 km (0.092 R)
• M6: 2,382,645 km (0.063 R)
• M7: 2,925,087 km (0.051 R)
• M8: 4,796,557 km (0.077 R)
• M9: 7,043,816 km (0.11 R)
• M10: 7,403,599 km (0.085 R)
• M11: 8,004,683 km (0.097 R)
• M12: 8,370,150 km (0.081 R)
• M13: 9,826,037 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.1

Radius: 8.5

Gravity: 12.97 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.63 AU - 2.69 AU

Year: 2191 Days

Day: 11 Hours

Environment

Temp: -200 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 36,497,672 km

• M1: 105,766 km (0.075 R)
• M2: 447,746 km (0.08 R)
• M3: 888,761 km (0.055 R)
• M4: 1,510,490 km (0.06 R)
• M5: 1,941,481 km (0.085 R)
• M6: 2,286,454 km (0.114 R)
• M7: 2,904,891 km (0.084 R)
• M8: 4,450,088 km (0.101 R)
• M9: 4,915,188 km (0.107 R)
• M10: 5,916,596 km (0.11 R)
• M11: 7,136,417 km (0.065 R)
• M12: 8,716,918 km (0.085 R)
• M13: 9,198,324 km (0.097 R)
• M14: 11,063,959 km (0.104 R)
• M15: 11,344,007 km (0.078 R)
• M16: 13,619,689 km (0.083 R)
• M17: 13,987,850 km (0.064 R)
• M18: 14,315,469 km (0.079 R)
• M19: 17,016,907 km (0.056 R)
• M20: 17,933,344 km (0.082 R)
• M21: 18,656,051 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.2

Radius: 9.6

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 4.21 AU - 4.77 AU

Year: 6567 Days

Day: 5.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,497,672 km

• M1: 122,521 km (0.029 R)
• M2: 441,164 km (0.101 R)
• M3: 811,568 km (0.053 R)
• M4: 1,505,104 km (0.04 R)
• M5: 2,097,362 km (0.116 R)
• M6: 2,821,715 km (0.113 R)
• M7: 3,665,148 km (0.085 R)
• M8: 4,530,422 km (0.093 R)
• M9: 5,321,196 km (0.09 R)
• M10: 11,976,357 km (0.058 R)
• M11: 12,285,576 km (0.119 R)
• M12: 16,973,823 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.4

Radius: 7.4

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.97 AU - 6.79 AU

Year: 11124 Days

Day: 18.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,497,672 km

• M1: 94,695 km (0.063 R)
• M2: 405,709 km (0.086 R)
• M3: 1,084,884 km (0.041 R)
• M4: 1,626,278 km (0.095 R)
• M5: 2,789,252 km (0.079 R)
• M6: 3,257,045 km (0.061 R)
• M7: 3,705,390 km (0.115 R)
• M8: 5,330,023 km (0.112 R)
• M9: 6,349,382 km (0.068 R)
• M10: 6,798,625 km (0.057 R)
• M11: 8,560,289 km (0.097 R)
• M12: 8,980,061 km (0.065 R)
• M13: 11,090,588 km (0.118 R)
• M14: 12,366,358 km (0.042 R)
• M15: 15,573,886 km (0.072 R)
• M16: 16,777,252 km (0.1 R)
• M17: 17,568,475 km (0.107 R)
• M18: 20,983,645 km (0.109 R)
• M19: 21,286,730 km (0.092 R)
• M20: 23,006,507 km (0.049 R)
• M21: 23,982,633 km (0.105 R)
• M22: 28,905,450 km (0.081 R)
• M23: 29,659,423 km (0.054 R)
• M24: 32,301,471 km (0.098 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 17,036 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit