🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.47 AU - 0.63 AU

Year: 268 Days

Day: 45 Hours

Environment

Temp: -122 °C

Axial Tilt: 21.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.51 AU - 0.67 AU

Year: 297 Days

Day: 35.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 43 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,999,159 km

• M1: 455,526 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 406.3

Radius: 14.8

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.89 AU - 1.13 AU

Year: 666 Days

Day: 8.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,999,159 km

• M1: 188,045 km (0.114 R)
• M2: 964,158 km (0.096 R)
• M3: 1,615,507 km (0.089 R)
• M4: 2,206,569 km (0.112 R)
• M5: 2,790,599 km (0.097 R)
• M6: 3,666,045 km (0.069 R)
• M7: 4,218,510 km (0.104 R)
• M8: 5,192,692 km (0.095 R)
• M9: 6,219,531 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.8

Radius: 11.4

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.89 AU - 1.93 AU

Year: 1732 Days

Day: 6.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,999,159 km

• M1: 142,417 km (0.054 R)
• M2: 670,198 km (0.067 R)
• M3: 1,310,328 km (0.113 R)
• M4: 2,352,726 km (0.089 R)
• M5: 2,817,078 km (0.092 R)
• M6: 3,223,236 km (0.081 R)
• M7: 3,589,003 km (0.119 R)
• M8: 3,965,690 km (0.111 R)
• M9: 4,571,262 km (0.079 R)
• M10: 4,955,729 km (0.066 R)
• M11: 5,466,605 km (0.062 R)
• M12: 6,357,461 km (0.109 R)
• M13: 6,911,870 km (0.073 R)
• M14: 7,550,953 km (0.082 R)
• M15: 8,117,928 km (0.092 R)
• M16: 8,568,816 km (0.12 R)
• M17: 8,976,919 km (0.097 R)
• M18: 9,644,575 km (0.104 R)
• M19: 10,508,951 km (0.04 R)
• M20: 11,634,675 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.2

Radius: 10.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.28 AU - 2.62 AU

Year: 2516 Days

Day: 14.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,999,159 km

• M1: 130,001 km (0.091 R)
• M2: 476,320 km (0.111 R)
• M3: 994,078 km (0.077 R)
• M4: 1,322,445 km (0.118 R)
• M5: 3,434,767 km (0.035 R)
• M6: 4,027,773 km (0.117 R)
• M7: 4,731,182 km (0.058 R)
• M8: 5,587,780 km (0.093 R)
• M9: 6,302,259 km (0.094 R)
• M10: 6,877,164 km (0.116 R)
• M11: 7,456,855 km (0.117 R)
• M12: 8,880,578 km (0.114 R)
• M13: 9,853,413 km (0.117 R)
• M14: 11,765,125 km (0.068 R)
• M15: 13,419,079 km (0.094 R)
• M16: 15,367,740 km (0.079 R)
• M17: 16,258,147 km (0.094 R)
• M18: 16,715,916 km (0.093 R)
• M19: 17,764,298 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.2

Radius: 8.7

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.62 AU - 3.9 AU

Year: 4783 Days

Day: 6.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,999,159 km

• M1: 122,820 km (0.042 R)
• M2: 413,040 km (0.096 R)
• M3: 712,535 km (0.071 R)
• M4: 1,231,340 km (0.075 R)
• M5: 1,589,926 km (0.117 R)
• M6: 2,051,286 km (0.107 R)
• M7: 2,332,380 km (0.11 R)
• M8: 4,700,664 km (0.088 R)
• M9: 5,343,935 km (0.084 R)
• M10: 5,927,816 km (0.077 R)
• M11: 8,251,669 km (0.089 R)
• M12: 10,667,974 km (0.068 R)
• M13: 11,302,867 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 405.7

Radius: 3.5

Gravity: 33.12 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 9.75 AU - 10.41 AU

Year: 20994 Days

Day: 20.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 65,999,159 km

• M1: 44,281 km (0.1 R)
• M2: 154,684 km (0.12 R)
• M3: 279,748 km (0.078 R)
• M4: 397,033 km (0.114 R)
• M5: 689,945 km (0.076 R)
• M6: 1,013,526 km (0.09 R)
• M7: 1,860,250 km (0.084 R)
• M8: 2,124,739 km (0.083 R)
• M9: 2,590,437 km (0.055 R)
• M10: 3,466,332 km (0.041 R)
• M11: 3,866,357 km (0.1 R)
• M12: 4,360,329 km (0.101 R)
• M13: 4,523,092 km (0.083 R)
• M14: 6,675,057 km (0.113 R)
• M15: 7,201,791 km (0.087 R)
• M16: 7,475,256 km (0.118 R)
• M17: 7,803,175 km (0.057 R)
• M18: 8,140,518 km (0.118 R)
• M19: 11,441,245 km (0.042 R)
• M20: 12,387,003 km (0.108 R)
• M21: 14,649,072 km (0.075 R)
• M22: 15,915,269 km (0.073 R)
• M23: 16,535,501 km (0.101 R)
• M24: 21,804,937 km (0.066 R)
• M25: 25,912,894 km (0.085 R)
• M26: 26,878,848 km (0.079 R)
• M27: 27,536,031 km (0.066 R)
• M28: 32,315,833 km (0.074 R)
• M29: 32,809,805 km (0.056 R)
• M30: 36,143,893 km (0.105 R)
• M31: 39,275,425 km (0.105 R)
• M32: 40,263,220 km (0.041 R)
• M33: 41,702,950 km (0.096 R)
• M34: 42,288,326 km (0.114 R)
• M35: 54,650,496 km (0.052 R)
• M36: 55,880,938 km (0.117 R)
• M37: 57,309,598 km (0.078 R)
• M38: 64,234,334 km (0.116 R)
• M39: 65,407,331 km (0.088 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: 384 - 17,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit