🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.05 AU - 1.15 AU

Year: 437 Days

Day: 47.2 Hours

Environment

Temp: 15 °C

Axial Tilt: 34.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 66,261,769 km

• M1: 41,887 km (0.101 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.64 AU - 2.62 AU

Year: 1177 Days

Day: 40.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 47.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 3.32 AU - 3.92 AU

Year: 2609 Days

Day: 35.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 16.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.3

Radius: 10.3

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.11 AU - 4.95 AU

Year: 3652 Days

Day: 5.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,261,769 km

• M1: 128,205 km (0.103 R)
• M2: 611,855 km (0.079 R)
• M3: 935,884 km (0.108 R)
• M4: 2,169,768 km (0.086 R)
• M5: 2,907,135 km (0.087 R)
• M6: 3,932,928 km (0.038 R)
• M7: 4,577,246 km (0.109 R)
• M8: 6,017,724 km (0.118 R)
• M9: 7,533,749 km (0.055 R)
• M10: 8,490,876 km (0.1 R)
• M11: 10,096,659 km (0.119 R)
• M12: 10,905,685 km (0.087 R)
• M13: 11,803,422 km (0.084 R)
• M14: 12,460,605 km (0.091 R)
• M15: 13,092,357 km (0.106 R)
• M16: 14,002,510 km (0.063 R)
• M17: 16,004,878 km (0.027 R)
• M18: 18,501,217 km (0.064 R)
• M19: 19,907,437 km (0.107 R)
• M20: 21,590,413 km (0.098 R)
• M21: 24,327,157 km (0.12 R)
• M22: 24,855,387 km (0.114 R)
• M23: 25,237,310 km (0.109 R)
• M24: 26,565,440 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.3

Radius: 14.8

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 4.07 AU - 6.71 AU

Year: 4739 Days

Day: 5.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,261,769 km

• M1: 185,352 km (0.101 R)
• M2: 761,004 km (0.06 R)
• M3: 1,521,261 km (0.106 R)
• M4: 2,004,462 km (0.099 R)
• M5: 2,760,380 km (0.103 R)
• M6: 5,203,762 km (0.04 R)
• M7: 6,933,413 km (0.092 R)
• M8: 9,714,138 km (0.118 R)
• M9: 17,484,850 km (0.108 R)
• M10: 20,732,021 km (0.119 R)
• M11: 21,299,296 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.2

Radius: 12.3

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.97 AU - 6.59 AU

Year: 5263 Days

Day: 5.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,261,769 km

• M1: 153,039 km (0.111 R)
• M2: 566,677 km (0.082 R)
• M3: 1,003,652 km (0.104 R)
• M4: 1,478,326 km (0.111 R)
• M5: 1,942,528 km (0.098 R)
• M6: 3,659,314 km (0.102 R)
• M7: 4,865,820 km (0.045 R)
• M8: 5,283,946 km (0.07 R)
• M9: 6,452,007 km (0.107 R)
• M10: 7,062,366 km (0.103 R)
• M11: 9,126,966 km (0.115 R)
• M12: 10,029,490 km (0.025 R)
• M13: 10,756,386 km (0.105 R)
• M14: 15,162,193 km (0.109 R)
• M15: 16,365,558 km (0.116 R)
• M16: 16,990,728 km (0.118 R)
• M17: 17,827,129 km (0.097 R)
• M18: 19,235,893 km (0.062 R)
• M19: 19,651,775 km (0.086 R)
• M20: 20,862,620 km (0.075 R)
• M21: 21,301,690 km (0.118 R)
• M22: 22,655,999 km (0.116 R)
• M23: 23,120,052 km (0.033 R)
• M24: 25,954,034 km (0.102 R)
• M25: 28,651,134 km (0.106 R)
• M26: 31,243,067 km (0.025 R)
• M27: 31,721,929 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.9

Radius: 8.1

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 8.07 AU - 12.75 AU

Year: 12721 Days

Day: 13.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 162.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,261,769 km

• M1: 103,522 km (0.091 R)
• M2: 829,221 km (0.093 R)
• M3: 1,454,839 km (0.085 R)
• M4: 2,256,833 km (0.12 R)
• M5: 3,145,744 km (0.113 R)
• M6: 4,011,168 km (0.112 R)
• M7: 5,627,423 km (0.029 R)
• M8: 7,840,724 km (0.043 R)
• M9: 11,940,304 km (0.084 R)
• M10: 13,594,108 km (0.115 R)
• M11: 24,109,791 km (0.051 R)
• M12: 25,174,180 km (0.116 R)
• M13: 29,745,741 km (0.119 R)
• M14: 30,660,383 km (0.119 R)
• M15: 36,086,447 km (0.111 R)
• M16: 37,010,064 km (0.11 R)
• M17: 39,998,132 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 536.2

Radius: 6.7

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 10.48 AU - 16.12 AU

Year: 18371 Days

Day: 24.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,261,769 km

• M1: 84,672 km (0.104 R)
• M2: 297,849 km (0.052 R)
• M3: 574,007 km (0.117 R)
• M4: 807,380 km (0.071 R)
• M5: 1,474,736 km (0.096 R)
• M6: 1,782,309 km (0.087 R)
• M7: 3,435,515 km (0.113 R)
• M8: 3,657,668 km (0.061 R)
• M9: 4,069,660 km (0.083 R)
• M10: 5,235,626 km (0.069 R)
• M11: 7,964,890 km (0.078 R)
• M12: 8,606,216 km (0.061 R)
• M13: 13,813,718 km (0.098 R)
• M14: 14,023,454 km (0.098 R)
• M15: 17,269,429 km (0.072 R)
• M16: 19,457,447 km (0.063 R)
• M17: 22,782,559 km (0.069 R)
• M18: 23,371,227 km (0.093 R)
• M19: 25,616,840 km (0.106 R)
• M20: 39,027,990 km (0.108 R)
• M21: 41,301,579 km (0.043 R)
• M22: 46,894,445 km (0.112 R)
• M23: 56,109,374 km (0.103 R)
• M24: 64,101,790 km (0.097 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 460 - 16,887 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit