🌌 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: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.5

Radius: 14.1

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.44 AU - 0.66 AU

Year: 272 Days

Day: 12.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,520,718 km

• M1: 224,995 km (0.05 R)
• M2: 703,409 km (0.093 R)
• M3: 1,375,104 km (0.095 R)
• M4: 1,849,030 km (0.106 R)
• M5: 2,776,088 km (0.047 R)
• M6: 3,593,640 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.2

Radius: 9.1

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.86 AU - 1.1 AU

Year: 647 Days

Day: 5.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,520,718 km

• M1: 113,246 km (0.05 R)
• M2: 431,889 km (0.039 R)
• M3: 717,920 km (0.111 R)
• M4: 1,077,853 km (0.083 R)
• M5: 1,763,310 km (0.098 R)
• M6: 2,071,482 km (0.106 R)
• M7: 2,359,009 km (0.094 R)
• M8: 2,766,663 km (0.12 R)
• M9: 3,472,466 km (0.088 R)
• M10: 4,734,773 km (0.1 R)
• M11: 6,187,667 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.6

Radius: 11.6

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.19 AU - 1.41 AU

Year: 988 Days

Day: 6.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,520,718 km

• M1: 144,212 km (0.068 R)
• M2: 509,231 km (0.037 R)
• M3: 1,012,778 km (0.109 R)
• M4: 1,402,630 km (0.077 R)
• M5: 2,291,540 km (0.049 R)
• M6: 3,575,988 km (0.039 R)
• M7: 4,015,356 km (0.112 R)
• M8: 4,398,776 km (0.098 R)
• M9: 5,717,331 km (0.088 R)
• M10: 6,089,531 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21

Radius: 8.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.2 AU - 1.6 AU

Year: 1105 Days

Day: 8.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 160.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 52,520,718 km

• M1: 109,805 km (0.087 R)
• M2: 666,758 km (0.117 R)
• M3: 2,111,873 km (0.09 R)
• M4: 2,764,419 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.6

Radius: 13.8

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.4 AU - 1.56 AU

Year: 1201 Days

Day: 10.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,520,718 km

• M1: 171,738 km (0.11 R)
• M2: 622,926 km (0.11 R)
• M3: 1,124,976 km (0.111 R)
• M4: 1,582,895 km (0.107 R)
• M5: 2,215,694 km (0.078 R)
• M6: 2,691,266 km (0.074 R)
• M7: 4,175,277 km (0.067 R)
• M8: 5,254,625 km (0.032 R)
• M9: 6,131,119 km (0.04 R)
• M10: 6,994,897 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85

Radius: 8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.87 AU - 2.01 AU

Year: 1802 Days

Day: 14.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,520,718 km

• M1: 102,475 km (0.119 R)
• M2: 411,245 km (0.106 R)
• M3: 669,301 km (0.102 R)
• M4: 947,703 km (0.099 R)
• M5: 1,421,479 km (0.101 R)
• M6: 2,224,520 km (0.036 R)
• M7: 3,003,925 km (0.09 R)
• M8: 3,262,580 km (0.109 R)
• M9: 4,234,817 km (0.119 R)
• M10: 5,904,030 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.3

Radius: 10.7

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.15 AU - 2.83 AU

Year: 2620 Days

Day: 11.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 52,520,718 km

• M1: 132,993 km (0.114 R)
• M2: 559,795 km (0.039 R)
• M3: 1,102,088 km (0.04 R)
• M4: 2,334,176 km (0.053 R)
• M5: 2,841,462 km (0.104 R)
• M6: 3,693,123 km (0.091 R)
• M7: 5,067,927 km (0.069 R)
• M8: 5,922,580 km (0.107 R)
• M9: 6,956,451 km (0.115 R)
• M10: 8,861,879 km (0.094 R)
• M11: 10,857,963 km (0.073 R)
• M12: 11,571,844 km (0.076 R)
• M13: 12,787,476 km (0.108 R)
• M14: 14,412,558 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.3

Radius: 12.8

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.58 AU - 3 AU

Year: 3108 Days

Day: 8.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,520,718 km

• M1: 159,172 km (0.072 R)
• M2: 1,254,079 km (0.073 R)
• M3: 1,816,417 km (0.077 R)
• M4: 2,304,406 km (0.096 R)
• M5: 3,550,406 km (0.087 R)
• M6: 4,343,873 km (0.088 R)
• M7: 4,760,653 km (0.062 R)
• M8: 5,276,616 km (0.105 R)
• M9: 6,013,834 km (0.082 R)
• M10: 6,561,512 km (0.111 R)
• M11: 6,994,000 km (0.071 R)
• M12: 7,414,818 km (0.064 R)
• M13: 7,852,542 km (0.07 R)
• M14: 8,407,251 km (0.074 R)
• M15: 8,883,720 km (0.109 R)
• M16: 11,542,373 km (0.1 R)
• M17: 12,347,060 km (0.082 R)
• M18: 13,053,461 km (0.07 R)
• M19: 13,508,538 km (0.05 R)
• M20: 18,150,859 km (0.077 R)
• M21: 19,356,169 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.1

Radius: 8.7

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.09 AU - 5.05 AU

Year: 5475 Days

Day: 11.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,520,718 km

• M1: 108,309 km (0.094 R)
• M2: 587,321 km (0.11 R)
• M3: 990,338 km (0.055 R)
• M4: 1,658,741 km (0.064 R)
• M5: 4,527,580 km (0.099 R)
• M6: 5,341,242 km (0.057 R)
• M7: 6,582,905 km (0.084 R)
• M8: 7,688,134 km (0.101 R)
• M9: 10,109,824 km (0.109 R)
• M10: 14,535,079 km (0.057 R)
• M11: 17,087,667 km (0.09 R)
• M12: 19,451,014 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 459.8

Radius: 4.4

Gravity: 23.75 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.58 AU - 7.64 AU

Year: 13999 Days

Day: 17.7 Hours

Environment

Temp: -235 °C

Axial Tilt: 81.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,520,718 km

• M1: 54,753 km (0.032 R)
• M2: 231,727 km (0.045 R)
• M3: 371,003 km (0.103 R)
• M4: 701,464 km (0.087 R)
• M5: 1,648,120 km (0.055 R)
• M6: 1,906,176 km (0.028 R)
• M7: 3,969,579 km (0.104 R)
• M8: 10,133,461 km (0.044 R)
• M9: 10,940,092 km (0.116 R)
• M10: 12,318,337 km (0.08 R)
• M11: 13,488,492 km (0.077 R)
• M12: 17,140,774 km (0.116 R)
• M13: 17,973,586 km (0.101 R)
• M14: 21,229,135 km (0.119 R)
• M15: 21,488,089 km (0.092 R)
• M16: 27,937,253 km (0.071 R)
• M17: 29,301,436 km (0.107 R)
• M18: 40,246,914 km (0.105 R)
• M19: 47,349,072 km (0.105 R)
• M20: 47,939,086 km (0.119 R)
• M21: 52,049,886 km (0.061 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: 354 - 10,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit