🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.52 AU - 0.6 AU

Year: 275 Days

Day: 34.8 Hours

Environment

Temp: -115 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.7

Radius: 14.3

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.55 AU - 0.83 AU

Year: 376 Days

Day: 8.6 Hours

Environment

Temp: -128 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,113,402 km

• M1: 179,667 km (0.099 R)
• M2: 707,000 km (0.103 R)
• M3: 1,197,830 km (0.034 R)
• M4: 1,662,631 km (0.069 R)
• M5: 2,242,173 km (0.063 R)
• M6: 2,811,842 km (0.118 R)
• M7: 3,430,728 km (0.103 R)
• M8: 4,113,343 km (0.092 R)
• M9: 5,204,809 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204.9

Radius: 8.6

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.75 AU - 0.95 AU

Year: 514 Days

Day: 10.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,113,402 km

• M1: 108,458 km (0.079 R)
• M2: 379,679 km (0.103 R)
• M3: 680,670 km (0.101 R)
• M4: 1,064,688 km (0.034 R)
• M5: 1,577,809 km (0.058 R)
• M6: 1,909,766 km (0.099 R)
• M7: 2,271,943 km (0.102 R)
• M8: 2,562,163 km (0.115 R)
• M9: 3,463,939 km (0.063 R)
• M10: 3,733,813 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.9

Radius: 13.2

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.81 AU - 2.37 AU

Year: 1982 Days

Day: 6.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,113,402 km

• M1: 164,558 km (0.087 R)
• M2: 1,153,549 km (0.11 R)
• M3: 1,690,456 km (0.074 R)
• M4: 2,164,681 km (0.106 R)
• M5: 2,613,026 km (0.11 R)
• M6: 3,210,370 km (0.11 R)
• M7: 3,733,364 km (0.111 R)
• M8: 4,550,169 km (0.047 R)
• M9: 5,440,725 km (0.072 R)
• M10: 6,142,339 km (0.115 R)
• M11: 7,179,651 km (0.106 R)
• M12: 8,557,447 km (0.101 R)
• M13: 9,203,560 km (0.075 R)
• M14: 10,008,846 km (0.088 R)
• M15: 11,339,070 km (0.068 R)
• M16: 12,046,967 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.4

Radius: 12.8

Gravity: 5.88 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.32 AU - 2.58 AU

Year: 2516 Days

Day: 12.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,113,402 km

• M1: 159,172 km (0.114 R)
• M2: 610,659 km (0.112 R)
• M3: 1,270,385 km (0.063 R)
• M4: 1,732,942 km (0.11 R)
• M5: 2,240,378 km (0.099 R)
• M6: 2,830,392 km (0.087 R)
• M7: 3,448,680 km (0.055 R)
• M8: 4,633,794 km (0.119 R)
• M9: 6,434,354 km (0.096 R)
• M10: 8,154,131 km (0.092 R)
• M11: 8,593,799 km (0.032 R)
• M12: 9,970,848 km (0.096 R)
• M13: 10,632,519 km (0.093 R)
• M14: 11,658,611 km (0.088 R)
• M15: 14,438,738 km (0.109 R)
• M16: 14,983,424 km (0.118 R)
• M17: 16,325,616 km (0.043 R)
• M18: 16,754,363 km (0.091 R)
• M19: 18,719,032 km (0.059 R)
• M20: 19,129,828 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.3

Radius: 14.5

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.27 AU - 2.69 AU

Year: 2562 Days

Day: 14.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,113,402 km

• M1: 180,864 km (0.105 R)
• M2: 659,427 km (0.046 R)
• M3: 1,172,399 km (0.08 R)
• M4: 1,751,941 km (0.119 R)
• M5: 3,510,015 km (0.074 R)
• M6: 4,475,370 km (0.048 R)
• M7: 5,116,397 km (0.077 R)
• M8: 6,302,708 km (0.071 R)
• M9: 6,814,183 km (0.074 R)
• M10: 7,508,317 km (0.094 R)
• M11: 8,518,103 km (0.027 R)
• M12: 9,952,746 km (0.114 R)
• M13: 10,530,493 km (0.068 R)
• M14: 11,049,149 km (0.079 R)
• M15: 12,619,777 km (0.117 R)
• M16: 15,072,883 km (0.114 R)
• M17: 15,527,661 km (0.057 R)
• M18: 16,306,168 km (0.071 R)
• M19: 16,839,484 km (0.118 R)
• M20: 17,494,873 km (0.119 R)
• M21: 18,110,617 km (0.116 R)
• M22: 18,798,618 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.3

Radius: 13

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.2 AU - 4.46 AU

Year: 4917 Days

Day: 6.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,113,402 km

• M1: 161,715 km (0.081 R)
• M2: 677,978 km (0.094 R)
• M3: 1,191,996 km (0.046 R)
• M4: 1,711,250 km (0.109 R)
• M5: 2,753,498 km (0.098 R)
• M6: 3,201,843 km (0.088 R)
• M7: 3,699,107 km (0.098 R)
• M8: 6,670,419 km (0.106 R)
• M9: 7,133,724 km (0.073 R)
• M10: 9,131,454 km (0.065 R)
• M11: 10,463,025 km (0.068 R)
• M12: 11,920,407 km (0.087 R)
• M13: 13,557,905 km (0.115 R)
• M14: 17,217,668 km (0.073 R)
• M15: 17,797,808 km (0.108 R)
• M16: 19,243,372 km (0.047 R)
• M17: 23,621,055 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.1

Radius: 15

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.02 AU - 6.18 AU

Year: 7556 Days

Day: 5.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,113,402 km

• M1: 186,698 km (0.116 R)
• M2: 2,614,971 km (0.091 R)
• M3: 3,404,249 km (0.064 R)
• M4: 4,369,903 km (0.093 R)
• M5: 5,288,135 km (0.089 R)
• M6: 5,767,596 km (0.114 R)
• M7: 6,556,127 km (0.078 R)
• M8: 8,315,398 km (0.072 R)
• M9: 9,838,154 km (0.081 R)
• M10: 10,646,282 km (0.09 R)
• M11: 13,292,968 km (0.12 R)
• M12: 15,318,373 km (0.112 R)
• M13: 16,037,191 km (0.08 R)
• M14: 18,329,479 km (0.117 R)
• M15: 18,847,836 km (0.11 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.6

Radius: 11.2

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 4.59 AU - 7.05 AU

Year: 9211 Days

Day: 9.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 42,113,402 km

• M1: 139,874 km (0.111 R)
• M2: 690,993 km (0.101 R)
• M3: 1,152,502 km (0.066 R)
• M4: 1,606,980 km (0.103 R)
• M5: 2,017,178 km (0.033 R)
• M6: 2,990,013 km (0.092 R)
• M7: 4,414,184 km (0.101 R)
• M8: 4,898,283 km (0.064 R)
• M9: 5,806,043 km (0.083 R)
• M10: 7,750,067 km (0.059 R)
• M11: 8,672,488 km (0.085 R)
• M12: 9,296,610 km (0.084 R)
• M13: 11,826,759 km (0.089 R)
• M14: 12,594,794 km (0.116 R)
• M15: 13,337,249 km (0.108 R)
• M16: 14,290,935 km (0.099 R)
• M17: 14,722,375 km (0.051 R)
• M18: 16,602,521 km (0.112 R)
• M19: 18,347,580 km (0.039 R)
• M20: 19,829,198 km (0.096 R)
• M21: 20,677,418 km (0.1 R)
• M22: 21,150,147 km (0.114 R)
• M23: 23,197,843 km (0.11 R)
• M24: 24,751,865 km (0.097 R)
• M25: 25,464,400 km (0.117 R)
• M26: 26,282,252 km (0.101 R)
• M27: 31,045,448 km (0.114 R)
• M28: 32,399,608 km (0.043 R)
• M29: 34,338,994 km (0.099 R)
• M30: 36,698,003 km (0.067 R)
• M31: 37,391,539 km (0.027 R)
• M32: 38,447,999 km (0.044 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: 207 - 11,882 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit