🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.5

Radius: 9.3

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.67 AU - 1.09 AU

Year: 570 Days

Day: 14.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,286,784 km

• M1: 115,639 km (0.099 R)
• M2: 408,103 km (0.071 R)
• M3: 772,673 km (0.094 R)
• M4: 1,132,905 km (0.109 R)
• M5: 1,685,220 km (0.089 R)
• M6: 2,040,665 km (0.06 R)
• M7: 2,563,210 km (0.055 R)
• M8: 3,456,758 km (0.072 R)
• M9: 3,783,929 km (0.12 R)
• M10: 4,544,933 km (0.086 R)
• M11: 5,256,869 km (0.066 R)
• M12: 5,777,320 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387

Radius: 10.1

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.04 AU - 1.46 AU

Year: 965 Days

Day: 14.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 33,286,784 km

• M1: 125,662 km (0.109 R)
• M2: 492,925 km (0.106 R)
• M3: 1,151,754 km (0.088 R)
• M4: 1,598,304 km (0.092 R)
• M5: 2,464,326 km (0.104 R)
• M6: 3,026,664 km (0.12 R)
• M7: 4,536,855 km (0.089 R)
• M8: 5,531,381 km (0.114 R)
• M9: 6,149,968 km (0.109 R)
• M10: 6,750,006 km (0.105 R)
• M11: 7,781,184 km (0.112 R)
• M12: 8,115,086 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.5

Radius: 13.3

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.21 AU - 1.85 AU

Year: 1306 Days

Day: 9.3 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,286,784 km

• M1: 165,455 km (0.067 R)
• M2: 657,931 km (0.12 R)
• M3: 1,119,142 km (0.103 R)
• M4: 1,748,650 km (0.106 R)
• M5: 2,173,956 km (0.063 R)
• M6: 2,657,008 km (0.089 R)
• M7: 3,578,082 km (0.119 R)
• M8: 4,484,944 km (0.064 R)
• M9: 5,478,274 km (0.103 R)
• M10: 6,181,534 km (0.06 R)
• M11: 6,896,312 km (0.108 R)
• M12: 8,004,832 km (0.114 R)
• M13: 9,199,820 km (0.098 R)
• M14: 10,767,307 km (0.101 R)
• M15: 11,193,960 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.1

Radius: 11.5

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.31 AU - 2.09 AU

Year: 1530 Days

Day: 8.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,286,784 km

• M1: 143,016 km (0.113 R)
• M2: 548,276 km (0.118 R)
• M3: 1,054,665 km (0.074 R)
• M4: 1,519,017 km (0.119 R)
• M5: 1,886,878 km (0.118 R)
• M6: 2,464,176 km (0.098 R)
• M7: 3,073,488 km (0.113 R)
• M8: 4,433,632 km (0.05 R)
• M9: 4,928,203 km (0.082 R)
• M10: 5,338,250 km (0.099 R)
• M11: 5,920,336 km (0.035 R)
• M12: 6,406,978 km (0.053 R)
• M13: 7,360,664 km (0.072 R)
• M14: 8,082,773 km (0.09 R)
• M15: 10,033,380 km (0.061 R)
• M16: 11,052,590 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.1

Radius: 11.8

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 1.75 AU - 2.39 AU

Year: 2056 Days

Day: 12.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 33,286,784 km

• M1: 146,756 km (0.048 R)
• M2: 540,497 km (0.075 R)
• M3: 1,753,287 km (0.084 R)
• M4: 2,884,995 km (0.077 R)
• M5: 3,458,852 km (0.105 R)
• M6: 3,961,052 km (0.036 R)
• M7: 4,335,346 km (0.093 R)
• M8: 5,134,049 km (0.084 R)
• M9: 5,672,901 km (0.069 R)
• M10: 6,654,562 km (0.104 R)
• M11: 7,434,715 km (0.099 R)
• M12: 8,335,145 km (0.105 R)
• M13: 9,635,748 km (0.117 R)
• M14: 11,177,355 km (0.116 R)
• M15: 13,831,969 km (0.062 R)
• M16: 14,479,428 km (0.043 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 470.5

Radius: 4.3

Gravity: 25.45 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 5.46 AU - 7.62 AU

Year: 11545 Days

Day: 17.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 33,286,784 km

• M1: 73,901 km (0.11 R)
• M2: 430,991 km (0.06 R)
• M3: 649,105 km (0.043 R)
• M4: 1,073,963 km (0.098 R)
• M5: 1,411,755 km (0.112 R)
• M6: 1,649,317 km (0.107 R)
• M7: 1,896,751 km (0.086 R)
• M8: 2,222,426 km (0.098 R)
• M9: 3,473,214 km (0.065 R)
• M10: 3,986,634 km (0.033 R)
• M11: 4,788,179 km (0.076 R)
• M12: 5,934,548 km (0.061 R)
• M13: 6,183,927 km (0.118 R)
• M14: 8,086,962 km (0.12 R)
• M15: 9,649,811 km (0.073 R)
• M16: 16,621,969 km (0.091 R)
• M17: 16,833,052 km (0.072 R)
• M18: 17,260,902 km (0.094 R)
• M19: 21,029,721 km (0.097 R)
• M20: 24,485,731 km (0.079 R)
• M21: 25,127,057 km (0.047 R)
• M22: 28,201,891 km (0.118 R)
• M23: 29,622,622 km (0.092 R)
• M24: 32,605,754 km (0.071 R)
• M25: 33,270,118 km (0.049 R)
• M26: 37,809,665 km (0.113 R)
• M27: 40,163,588 km (0.069 R)
• M28: 40,671,323 km (0.109 R)
• M29: 41,829,210 km (0.111 R)
• M30: 43,009,089 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 90.6

Radius: 6.7

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.94 AU - 9.26 AU

Year: 15913 Days

Day: 20.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,286,784 km

• M1: 83,326 km (0.067 R)
• M2: 399,726 km (0.07 R)
• M3: 687,402 km (0.112 R)
• M4: 1,082,041 km (0.094 R)
• M5: 2,098,709 km (0.037 R)
• M6: 2,614,223 km (0.076 R)
• M7: 3,029,058 km (0.077 R)
• M8: 4,208,936 km (0.1 R)
• M9: 4,915,487 km (0.073 R)
• M10: 6,395,608 km (0.079 R)
• M11: 7,436,061 km (0.06 R)
• M12: 9,034,515 km (0.108 R)
• M13: 10,849,286 km (0.044 R)
• M14: 13,159,975 km (0.093 R)
• M15: 14,658,796 km (0.104 R)
• M16: 16,892,891 km (0.09 R)
• M17: 19,692,914 km (0.099 R)
• M18: 24,369,493 km (0.102 R)
• M19: 29,459,561 km (0.113 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 259 - 14,824 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit