🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.2

Radius: 9.6

Gravity: 4.6 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.63 AU - 0.71 AU

Year: 366 Days

Day: 7.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,274,965 km

• M1: 119,379 km (0.087 R)
• M2: 463,005 km (0.097 R)
• M3: 764,445 km (0.104 R)
• M4: 1,133,802 km (0.114 R)
• M5: 1,509,443 km (0.117 R)
• M6: 2,035,429 km (0.085 R)
• M7: 2,396,857 km (0.083 R)
• M8: 2,735,247 km (0.05 R)
• M9: 3,345,906 km (0.042 R)
• M10: 3,924,102 km (0.088 R)
• M11: 4,319,938 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.6

Radius: 11.1

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.94 AU - 1.2 AU

Year: 738 Days

Day: 5.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,274,965 km

• M1: 138,079 km (0.074 R)
• M2: 571,913 km (0.062 R)
• M3: 938,128 km (0.028 R)
• M4: 1,351,168 km (0.073 R)
• M5: 1,794,875 km (0.066 R)
• M6: 2,580,862 km (0.1 R)
• M7: 3,704,043 km (0.089 R)
• M8: 4,114,091 km (0.079 R)
• M9: 4,681,366 km (0.051 R)
• M10: 5,282,600 km (0.107 R)
• M11: 5,730,047 km (0.087 R)
• M12: 6,887,037 km (0.037 R)
• M13: 7,509,963 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.8

Radius: 9.5

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.14 AU - 1.4 AU

Year: 954 Days

Day: 10.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,274,965 km

• M1: 119,230 km (0.11 R)
• M2: 490,831 km (0.089 R)
• M3: 1,040,453 km (0.115 R)
• M4: 1,711,998 km (0.109 R)
• M5: 2,192,207 km (0.068 R)
• M6: 2,661,197 km (0.083 R)
• M7: 3,005,870 km (0.117 R)
• M8: 3,662,305 km (0.105 R)
• M9: 4,073,849 km (0.098 R)
• M10: 5,598,551 km (0.076 R)
• M11: 6,660,097 km (0.119 R)
• M12: 7,202,389 km (0.041 R)
• M13: 7,825,016 km (0.08 R)
• M14: 10,397,650 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.3

Radius: 9.9

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.2 AU - 1.44 AU

Year: 1011 Days

Day: 5.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,274,965 km

• M1: 123,119 km (0.091 R)
• M2: 444,904 km (0.102 R)
• M3: 1,262,456 km (0.055 R)
• M4: 1,676,244 km (0.112 R)
• M5: 2,023,760 km (0.112 R)
• M6: 2,343,750 km (0.039 R)
• M7: 3,144,996 km (0.102 R)
• M8: 4,174,529 km (0.091 R)
• M9: 4,976,672 km (0.11 R)
• M10: 5,967,010 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.4

Radius: 9.2

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.34 AU - 1.54 AU

Year: 1152 Days

Day: 12.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,274,965 km

• M1: 115,490 km (0.094 R)
• M2: 483,500 km (0.079 R)
• M3: 842,834 km (0.118 R)
• M4: 1,394,252 km (0.086 R)
• M5: 1,955,543 km (0.095 R)
• M6: 2,266,857 km (0.108 R)
• M7: 2,980,438 km (0.09 R)
• M8: 3,419,209 km (0.054 R)
• M9: 4,097,486 km (0.062 R)
• M10: 4,454,875 km (0.101 R)
• M11: 4,802,989 km (0.057 R)
• M12: 5,232,335 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 592.5

Radius: 6.5

Gravity: 14.02 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 5.97 AU - 6.07 AU

Year: 9850 Days

Day: 21.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 42,274,965 km

• M1: 80,783 km (0.12 R)
• M2: 322,683 km (0.098 R)
• M3: 838,047 km (0.071 R)
• M4: 1,125,574 km (0.104 R)
• M5: 1,373,907 km (0.036 R)
• M6: 1,808,040 km (0.099 R)
• M7: 2,716,997 km (0.099 R)
• M8: 3,283,224 km (0.056 R)
• M9: 4,193,378 km (0.075 R)
• M10: 5,103,232 km (0.075 R)
• M11: 5,688,459 km (0.09 R)
• M12: 6,876,117 km (0.11 R)
• M13: 12,417,670 km (0.054 R)
• M14: 13,837,653 km (0.091 R)
• M15: 14,271,338 km (0.106 R)
• M16: 16,029,711 km (0.088 R)
• M17: 16,301,979 km (0.088 R)
• M18: 17,208,093 km (0.062 R)
• M19: 17,927,659 km (0.057 R)
• M20: 19,814,088 km (0.056 R)
• M21: 23,101,202 km (0.093 R)
• M22: 25,792,767 km (0.041 R)
• M23: 27,504,317 km (0.092 R)
• M24: 28,387,842 km (0.106 R)
• M25: 31,257,428 km (0.094 R)
• M26: 33,532,512 km (0.056 R)
• M27: 33,866,265 km (0.113 R)
• M28: 34,090,064 km (0.115 R)
• M29: 36,031,844 km (0.081 R)
• M30: 39,019,613 km (0.08 R)

Asteroid Belt

Center: 7.48 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.9

Radius: 6.9

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.42 AU - 9.46 AU

Year: 17825 Days

Day: 15.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,274,965 km

• M1: 85,869 km (0.057 R)
• M2: 870,959 km (0.115 R)
• M3: 1,354,908 km (0.038 R)
• M4: 1,957,339 km (0.094 R)
• M5: 2,550,195 km (0.041 R)
• M6: 2,909,230 km (0.118 R)
• M7: 3,347,402 km (0.103 R)
• M8: 4,958,721 km (0.056 R)
• M9: 6,692,261 km (0.104 R)
• M10: 9,661,928 km (0.082 R)
• M11: 11,406,688 km (0.105 R)
• M12: 11,725,631 km (0.059 R)
• M13: 13,468,895 km (0.1 R)
• M14: 18,605,786 km (0.109 R)
• M15: 19,346,595 km (0.108 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: 502 - 15,070 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit