🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.52 AU - 0.78 AU

Year: 338 Days

Day: 44.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.4

Radius: 11.6

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.74 AU - 0.78 AU

Year: 428 Days

Day: 11.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 65,375,999 km

• M1: 144,811 km (0.03 R)
• M2: 590,612 km (0.055 R)
• M3: 1,031,926 km (0.037 R)
• M4: 1,432,998 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.8

Radius: 9.4

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.29 AU - 2.53 AU

Year: 2416 Days

Day: 8.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,375,999 km

• M1: 117,135 km (0.104 R)
• M2: 804,388 km (0.037 R)
• M3: 1,303,147 km (0.099 R)
• M4: 1,951,654 km (0.106 R)
• M5: 2,970,116 km (0.061 R)
• M6: 3,641,661 km (0.048 R)
• M7: 4,169,442 km (0.106 R)
• M8: 4,472,827 km (0.06 R)
• M9: 4,812,564 km (0.064 R)
• M10: 5,146,765 km (0.057 R)
• M11: 6,012,937 km (0.089 R)
• M12: 8,063,026 km (0.119 R)
• M13: 9,094,055 km (0.09 R)
• M14: 9,641,433 km (0.099 R)
• M15: 14,243,213 km (0.096 R)
• M16: 15,360,410 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.3

Radius: 12.4

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.4 AU - 2.42 AU

Year: 2416 Days

Day: 7.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,375,999 km

• M1: 154,235 km (0.065 R)
• M2: 755,918 km (0.1 R)
• M3: 1,320,650 km (0.111 R)
• M4: 1,744,760 km (0.074 R)
• M5: 2,169,768 km (0.075 R)
• M6: 2,722,681 km (0.119 R)
• M7: 3,809,360 km (0.061 R)
• M8: 4,353,747 km (0.102 R)
• M9: 4,843,680 km (0.08 R)
• M10: 5,599,299 km (0.116 R)
• M11: 6,077,114 km (0.069 R)
• M12: 6,756,737 km (0.109 R)
• M13: 8,217,411 km (0.076 R)
• M14: 8,835,998 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.4

Radius: 6

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 8.23 AU - 9.71 AU

Year: 17346 Days

Day: 17.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,375,999 km

• M1: 76,893 km (0.08 R)
• M2: 1,723,068 km (0.076 R)
• M3: 1,912,310 km (0.108 R)
• M4: 2,173,657 km (0.097 R)
• M5: 3,307,160 km (0.043 R)
• M6: 3,942,801 km (0.111 R)
• M7: 6,418,646 km (0.047 R)
• M8: 6,963,332 km (0.045 R)
• M9: 7,358,121 km (0.084 R)
• M10: 8,483,994 km (0.066 R)
• M11: 10,047,292 km (0.058 R)
• M12: 10,608,583 km (0.099 R)
• M13: 11,131,278 km (0.097 R)
• M14: 11,610,141 km (0.069 R)
• M15: 12,998,110 km (0.118 R)
• M16: 17,023,490 km (0.107 R)
• M17: 22,842,996 km (0.077 R)
• M18: 25,111,648 km (0.118 R)
• M19: 25,934,736 km (0.113 R)
• M20: 29,747,985 km (0.043 R)
• M21: 35,434,051 km (0.036 R)
• M22: 36,993,758 km (0.078 R)
• M23: 45,635,130 km (0.097 R)
• M24: 47,168,957 km (0.118 R)
• M25: 51,317,455 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.4

Radius: 4.6

Gravity: 15.99 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 10.02 AU - 11.42 AU

Year: 22662 Days

Day: 16.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,375,999 km

• M1: 67,469 km (0.079 R)
• M2: 438,172 km (0.11 R)
• M3: 645,066 km (0.114 R)
• M4: 791,373 km (0.096 R)
• M5: 1,768,396 km (0.034 R)
• M6: 2,426,029 km (0.104 R)
• M7: 2,833,832 km (0.109 R)
• M8: 3,726,932 km (0.112 R)
• M9: 4,113,493 km (0.063 R)
• M10: 4,862,080 km (0.109 R)
• M11: 5,545,743 km (0.048 R)
• M12: 5,930,359 km (0.105 R)
• M13: 6,291,488 km (0.056 R)
• M14: 6,925,783 km (0.079 R)
• M15: 10,806,501 km (0.119 R)
• M16: 12,539,892 km (0.052 R)
• M17: 12,933,933 km (0.115 R)
• M18: 14,737,933 km (0.087 R)
• M19: 15,029,649 km (0.107 R)
• M20: 16,004,130 km (0.104 R)
• M21: 17,503,250 km (0.106 R)
• M22: 19,352,878 km (0.099 R)
• M23: 19,790,751 km (0.046 R)
• M24: 23,140,397 km (0.109 R)
• M25: 26,957,536 km (0.071 R)
• M26: 27,834,629 km (0.063 R)
• M27: 31,413,458 km (0.112 R)
• M28: 31,896,360 km (0.092 R)
• M29: 33,751,823 km (0.077 R)
• M30: 34,004,643 km (0.073 R)
• M31: 35,678,045 km (0.056 R)
• M32: 46,104,867 km (0.063 R)
• M33: 48,955,754 km (0.104 R)
• M34: 49,604,859 km (0.09 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 11,631 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit