🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 788.5

Radius: 10.8

Gravity: 6.76 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.9 AU - 1.06 AU

Year: 670 Days

Day: 11.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,785,286 km

• M1: 134,339 km (0.092 R)
• M2: 578,046 km (0.046 R)
• M3: 1,002,156 km (0.045 R)
• M4: 1,439,132 km (0.067 R)
• M5: 2,020,768 km (0.052 R)
• M6: 2,362,150 km (0.098 R)
• M7: 2,893,821 km (0.119 R)
• M8: 3,370,290 km (0.037 R)
• M9: 4,122,020 km (0.11 R)
• M10: 5,336,006 km (0.072 R)
• M11: 5,783,304 km (0.098 R)
• M12: 6,235,239 km (0.052 R)
• M13: 7,970,275 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.8

Radius: 9

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.79 AU - 1.27 AU

Year: 722 Days

Day: 9.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,785,286 km

• M1: 111,899 km (0.102 R)
• M2: 544,087 km (0.08 R)
• M3: 824,883 km (0.07 R)
• M4: 1,206,656 km (0.05 R)
• M5: 1,659,340 km (0.116 R)
• M6: 1,998,628 km (0.11 R)
• M7: 2,403,589 km (0.054 R)
• M8: 2,699,942 km (0.112 R)
• M9: 3,043,868 km (0.107 R)
• M10: 3,739,797 km (0.069 R)
• M11: 4,139,971 km (0.108 R)
• M12: 4,507,833 km (0.107 R)
• M13: 4,913,392 km (0.072 R)
• M14: 5,428,608 km (0.116 R)
• M15: 6,071,579 km (0.09 R)
• M16: 6,411,765 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405

Radius: 11

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.78 AU - 3.96 AU

Year: 4270 Days

Day: 6.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,785,286 km

• M1: 137,480 km (0.067 R)
• M2: 786,586 km (0.036 R)
• M3: 1,159,982 km (0.085 R)
• M4: 2,723,878 km (0.111 R)
• M5: 3,418,162 km (0.051 R)
• M6: 4,248,580 km (0.11 R)
• M7: 5,334,810 km (0.09 R)
• M8: 9,177,680 km (0.07 R)
• M9: 9,703,516 km (0.11 R)
• M10: 10,529,895 km (0.062 R)
• M11: 12,054,746 km (0.104 R)
• M12: 13,103,128 km (0.027 R)
• M13: 14,661,339 km (0.111 R)
• M14: 16,015,649 km (0.036 R)
• M15: 17,852,561 km (0.107 R)
• M16: 18,911,714 km (0.115 R)
• M17: 22,677,691 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.1

Radius: 12.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 3.42 AU - 4.32 AU

Year: 5255 Days

Day: 6.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,785,286 km

• M1: 153,039 km (0.069 R)
• M2: 649,105 km (0.113 R)
• M3: 1,429,108 km (0.027 R)
• M4: 2,163,784 km (0.095 R)
• M5: 2,948,275 km (0.06 R)
• M6: 3,654,826 km (0.108 R)
• M7: 4,186,347 km (0.107 R)
• M8: 6,818,821 km (0.109 R)
• M9: 8,224,741 km (0.084 R)
• M10: 9,251,731 km (0.11 R)
• M11: 10,402,138 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.1

Radius: 10.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 3.45 AU - 4.51 AU

Year: 5481 Days

Day: 13.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,785,286 km

• M1: 137,331 km (0.115 R)
• M2: 499,657 km (0.075 R)
• M3: 968,945 km (0.057 R)
• M4: 4,375,139 km (0.088 R)
• M5: 6,999,086 km (0.084 R)
• M6: 7,918,963 km (0.108 R)
• M7: 9,681,077 km (0.099 R)
• M8: 11,121,255 km (0.09 R)
• M9: 12,652,240 km (0.111 R)
• M10: 14,370,371 km (0.063 R)
• M11: 18,872,519 km (0.103 R)
• M12: 20,065,562 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.2

Radius: 13.2

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.19 AU - 4.97 AU

Year: 6766 Days

Day: 6.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 59.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 23,785,286 km

• M1: 164,109 km (0.077 R)
• M2: 1,063,491 km (0.059 R)
• M3: 1,504,955 km (0.117 R)
• M4: 2,012,989 km (0.096 R)
• M5: 2,670,621 km (0.09 R)
• M6: 3,619,520 km (0.084 R)
• M7: 5,080,493 km (0.111 R)
• M8: 6,022,062 km (0.117 R)
• M9: 7,287,660 km (0.106 R)
• M10: 7,722,242 km (0.11 R)
• M11: 8,251,071 km (0.096 R)
• M12: 9,809,731 km (0.104 R)
• M13: 10,476,189 km (0.08 R)
• M14: 11,363,753 km (0.086 R)
• M15: 11,801,178 km (0.076 R)
• M16: 15,480,986 km (0.081 R)
• M17: 16,201,599 km (0.077 R)
• M18: 17,197,173 km (0.082 R)
• M19: 21,665,362 km (0.094 R)
• M20: 23,182,584 km (0.078 R)
• M21: 29,688,894 km (0.112 R)
• M22: 32,620,264 km (0.043 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.3

Radius: 12.7

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.33 AU - 5.67 AU

Year: 8903 Days

Day: 5.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 23,785,286 km

• M1: 160,668 km (0.088 R)
• M2: 587,620 km (0.081 R)
• M3: 1,213,837 km (0.115 R)
• M4: 1,844,991 km (0.09 R)
• M5: 2,567,399 km (0.066 R)
• M6: 3,824,918 km (0.094 R)
• M7: 4,315,749 km (0.054 R)
• M8: 5,661,083 km (0.07 R)
• M9: 6,638,705 km (0.108 R)
• M10: 7,228,569 km (0.098 R)
• M11: 7,768,019 km (0.081 R)
• M12: 9,259,061 km (0.1 R)
• M13: 11,983,986 km (0.115 R)
• M14: 12,800,641 km (0.026 R)
• M15: 13,467,997 km (0.116 R)
• M16: 15,137,958 km (0.082 R)
• M17: 16,655,629 km (0.109 R)
• M18: 18,654,106 km (0.102 R)
• M19: 20,234,159 km (0.111 R)
• M20: 20,807,717 km (0.085 R)
• M21: 22,768,946 km (0.098 R)
• M22: 29,598,836 km (0.111 R)
• M23: 34,106,819 km (0.112 R)
• M24: 36,584,159 km (0.09 R)
• M25: 37,805,028 km (0.083 R)
• M26: 38,425,559 km (0.09 R)
• M27: 40,976,054 km (0.094 R)
• M28: 42,425,807 km (0.078 R)
• M29: 44,046,101 km (0.106 R)
• M30: 44,595,275 km (0.075 R)
• M31: 45,988,181 km (0.062 R)
• M32: 47,266,494 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.8

Radius: 4

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 6.17 AU - 6.91 AU

Year: 11545 Days

Day: 24.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,785,286 km

• M1: 54,304 km (0.098 R)
• M2: 183,557 km (0.1 R)
• M3: 320,139 km (0.112 R)
• M4: 476,619 km (0.113 R)
• M5: 1,093,860 km (0.092 R)
• M6: 1,923,679 km (0.104 R)
• M7: 3,484,284 km (0.109 R)
• M8: 4,753,024 km (0.067 R)
• M9: 8,835,400 km (0.088 R)
• M10: 10,510,298 km (0.088 R)
• M11: 14,017,620 km (0.108 R)
• M12: 16,557,941 km (0.113 R)
• M13: 19,953,514 km (0.104 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 16,043 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit