🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.49 AU - 0.79 AU

Year: 336 Days

Day: 25.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 43.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.95 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 8.3

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.06 AU - 1.44 AU

Year: 917 Days

Day: 13.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 38,846,713 km

• M1: 103,223 km (0.111 R)
• M2: 429,047 km (0.113 R)
• M3: 778,657 km (0.099 R)
• M4: 1,274,125 km (0.06 R)
• M5: 1,782,758 km (0.062 R)
• M6: 2,084,796 km (0.099 R)
• M7: 2,392,369 km (0.11 R)
• M8: 2,668,377 km (0.114 R)
• M9: 3,273,351 km (0.11 R)
• M10: 3,640,315 km (0.104 R)
• M11: 3,899,867 km (0.101 R)
• M12: 4,663,863 km (0.062 R)
• M13: 5,291,277 km (0.036 R)
• M14: 5,557,561 km (0.064 R)
• M15: 6,027,298 km (0.052 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.5

Radius: 14.9

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.6 AU - 2.1 AU

Year: 1651 Days

Day: 7.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,846,713 km

• M1: 195,225 km (0.095 R)
• M2: 675,734 km (0.114 R)
• M3: 1,226,553 km (0.072 R)
• M4: 1,714,092 km (0.1 R)
• M5: 2,201,183 km (0.061 R)
• M6: 2,671,519 km (0.071 R)
• M7: 3,416,067 km (0.026 R)
• M8: 4,239,304 km (0.106 R)
• M9: 4,956,776 km (0.049 R)
• M10: 5,434,292 km (0.077 R)
• M11: 6,014,433 km (0.064 R)
• M12: 6,765,115 km (0.114 R)
• M13: 7,605,855 km (0.095 R)
• M14: 9,761,261 km (0.082 R)
• M15: 11,607,748 km (0.108 R)
• M16: 13,719,621 km (0.05 R)
• M17: 14,535,827 km (0.038 R)
• M18: 15,247,913 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.8

Radius: 13

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.68 AU - 2.44 AU

Year: 1940 Days

Day: 11.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,846,713 km

• M1: 161,715 km (0.105 R)
• M2: 863,479 km (0.102 R)
• M3: 2,016,579 km (0.099 R)
• M4: 2,677,203 km (0.108 R)
• M5: 3,478,300 km (0.12 R)
• M6: 5,535,720 km (0.119 R)
• M7: 7,115,324 km (0.072 R)
• M8: 8,135,282 km (0.102 R)
• M9: 10,699,988 km (0.103 R)
• M10: 11,568,104 km (0.083 R)
• M11: 12,037,692 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.9

Radius: 14.2

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 3.97 AU - 4.93 AU

Year: 6158 Days

Day: 6 Hours

Environment

Temp: -205 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,846,713 km

• M1: 176,825 km (0.052 R)
• M2: 1,102,088 km (0.09 R)
• M3: 2,338,364 km (0.103 R)
• M4: 3,219,197 km (0.06 R)
• M5: 4,718,466 km (0.067 R)
• M6: 6,610,281 km (0.112 R)
• M7: 7,690,228 km (0.057 R)
• M8: 8,884,618 km (0.09 R)
• M9: 10,155,003 km (0.078 R)
• M10: 10,741,875 km (0.093 R)
• M11: 14,300,210 km (0.118 R)
• M12: 15,038,476 km (0.107 R)
• M13: 15,921,701 km (0.088 R)
• M14: 16,406,698 km (0.116 R)
• M15: 20,507,774 km (0.107 R)
• M16: 24,118,917 km (0.119 R)
• M17: 24,598,378 km (0.064 R)
• M18: 27,958,496 km (0.059 R)
• M19: 28,844,265 km (0.105 R)
• M20: 31,423,781 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.5

Radius: 12.3

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 4.99 AU - 6.03 AU

Year: 8485 Days

Day: 9.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,846,713 km

• M1: 157,527 km (0.08 R)
• M2: 593,754 km (0.081 R)
• M3: 1,687,314 km (0.104 R)
• M4: 2,309,941 km (0.091 R)
• M5: 2,839,368 km (0.117 R)
• M6: 4,874,497 km (0.063 R)
• M7: 6,416,701 km (0.066 R)
• M8: 9,241,558 km (0.108 R)
• M9: 9,828,281 km (0.079 R)
• M10: 16,152,531 km (0.112 R)
• M11: 17,273,019 km (0.039 R)
• M12: 20,945,796 km (0.104 R)
• M13: 21,643,970 km (0.063 R)
• M14: 23,416,106 km (0.091 R)
• M15: 25,022,787 km (0.118 R)
• M16: 26,163,770 km (0.081 R)
• M17: 37,131,538 km (0.117 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 356 - 14,437 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit