🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.3

Radius: 14.3

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.53 AU - 0.55 AU

Year: 279 Days

Day: 13.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 129.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 78,316,174 km

• M1: 177,872 km (0.056 R)
• M2: 958,623 km (0.057 R)
• M3: 1,451,997 km (0.07 R)
• M4: 1,992,045 km (0.107 R)
• M5: 2,482,277 km (0.082 R)
• M6: 3,014,397 km (0.116 R)
• M7: 4,016,553 km (0.029 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.2

Radius: 8.2

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.52 AU - 0.6 AU

Year: 295 Days

Day: 14 Hours

Environment

Temp: -152 °C

Axial Tilt: 129.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 78,316,174 km

• M1: 102,026 km (0.048 R)
• M2: 371,900 km (0.103 R)
• M3: 687,253 km (0.066 R)
• M4: 1,053,169 km (0.059 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.5

Radius: 9.5

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.59 AU - 0.97 AU

Year: 484 Days

Day: 12.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,316,174 km

• M1: 118,182 km (0.044 R)
• M2: 417,976 km (0.048 R)
• M3: 916,437 km (0.032 R)
• M4: 1,232,238 km (0.12 R)
• M5: 1,537,866 km (0.07 R)
• M6: 2,410,321 km (0.119 R)
• M7: 2,797,779 km (0.047 R)
• M8: 3,280,532 km (0.075 R)
• M9: 3,793,952 km (0.057 R)
• M10: 4,152,538 km (0.113 R)
• M11: 4,643,069 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.2

Radius: 14.1

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.82 AU - 1.28 AU

Year: 756 Days

Day: 12.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 78,316,174 km

• M1: 175,329 km (0.079 R)
• M2: 700,118 km (0.051 R)
• M3: 1,382,584 km (0.058 R)
• M4: 2,179,342 km (0.072 R)
• M5: 2,662,842 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.4

Radius: 10.2

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.77 AU - 3.95 AU

Year: 5331 Days

Day: 8.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 78,316,174 km

• M1: 155,731 km (0.098 R)
• M2: 603,777 km (0.109 R)
• M3: 1,312,422 km (0.119 R)
• M4: 1,762,413 km (0.107 R)
• M5: 2,301,264 km (0.104 R)
• M6: 3,605,608 km (0.103 R)
• M7: 5,082,588 km (0.032 R)
• M8: 5,884,133 km (0.1 R)
• M9: 6,429,866 km (0.103 R)
• M10: 8,734,421 km (0.083 R)
• M11: 9,445,011 km (0.102 R)
• M12: 14,543,456 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.5

Radius: 14.5

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 4.97 AU - 5.79 AU

Year: 8772 Days

Day: 11.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,316,174 km

• M1: 180,265 km (0.096 R)
• M2: 1,972,448 km (0.118 R)
• M3: 2,709,068 km (0.086 R)
• M4: 3,646,598 km (0.098 R)
• M5: 4,736,717 km (0.107 R)
• M6: 5,907,470 km (0.057 R)
• M7: 9,196,380 km (0.081 R)
• M8: 12,211,824 km (0.109 R)
• M9: 13,004,244 km (0.073 R)
• M10: 14,000,117 km (0.084 R)
• M11: 14,575,171 km (0.069 R)
• M12: 15,834,037 km (0.086 R)
• M13: 19,122,049 km (0.105 R)
• M14: 20,851,699 km (0.085 R)
• M15: 22,293,374 km (0.066 R)
• M16: 30,418,184 km (0.119 R)
• M17: 30,898,543 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 140.9

Radius: 4

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.51 AU - 7.11 AU

Year: 9844 Days

Day: 19.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,316,174 km

• M1: 49,816 km (0.102 R)
• M2: 381,026 km (0.096 R)
• M3: 1,035,965 km (0.058 R)
• M4: 1,583,493 km (0.117 R)
• M5: 6,614,769 km (0.115 R)
• M6: 8,493,718 km (0.115 R)
• M7: 11,375,721 km (0.094 R)
• M8: 11,560,475 km (0.109 R)
• M9: 13,211,736 km (0.093 R)
• M10: 14,739,130 km (0.055 R)
• M11: 25,166,551 km (0.077 R)
• M12: 25,559,095 km (0.102 R)
• M13: 27,665,733 km (0.041 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 634.5

Radius: 4.3

Gravity: 34.32 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.51 AU - 6.95 AU

Year: 10931 Days

Day: 17.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,316,174 km

• M1: 53,406 km (0.059 R)
• M2: 347,217 km (0.09 R)
• M3: 580,889 km (0.106 R)
• M4: 1,248,993 km (0.077 R)
• M5: 1,646,175 km (0.088 R)
• M6: 2,364,245 km (0.1 R)
• M7: 2,879,759 km (0.07 R)
• M8: 3,343,512 km (0.096 R)
• M9: 3,593,341 km (0.099 R)
• M10: 3,802,030 km (0.063 R)
• M11: 10,225,164 km (0.049 R)
• M12: 10,433,554 km (0.068 R)
• M13: 12,087,059 km (0.068 R)
• M14: 19,558,725 km (0.049 R)
• M15: 24,564,868 km (0.043 R)
• M16: 30,576,458 km (0.032 R)
• M17: 31,008,946 km (0.105 R)
• M18: 32,219,193 km (0.107 R)
• M19: 34,499,513 km (0.08 R)
• M20: 40,927,434 km (0.086 R)
• M21: 41,982,249 km (0.108 R)
• M22: 47,240,614 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 954

Radius: 6.7

Gravity: 21.25 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 6.6 AU - 10.58 AU

Year: 17697 Days

Day: 16.5 Hours

Environment

Temp: -235 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 78,316,174 km

• M1: 83,326 km (0.087 R)
• M2: 547,229 km (0.099 R)
• M3: 962,662 km (0.074 R)
• M4: 1,800,710 km (0.058 R)
• M5: 3,495,354 km (0.105 R)
• M6: 5,015,568 km (0.028 R)
• M7: 5,715,387 km (0.093 R)
• M8: 6,260,072 km (0.067 R)
• M9: 6,478,635 km (0.088 R)
• M10: 6,793,090 km (0.038 R)
• M11: 7,599,273 km (0.11 R)
• M12: 9,745,553 km (0.066 R)
• M13: 13,170,447 km (0.118 R)
• M14: 14,956,047 km (0.112 R)
• M15: 15,268,707 km (0.093 R)
• M16: 22,168,460 km (0.04 R)
• M17: 22,472,891 km (0.102 R)
• M18: 33,618,681 km (0.069 R)
• M19: 35,799,219 km (0.094 R)
• M20: 37,066,313 km (0.081 R)
• M21: 41,352,292 km (0.059 R)
• M22: 43,218,376 km (0.112 R)
• M23: 44,654,366 km (0.103 R)
• M24: 46,121,772 km (0.1 R)
• M25: 50,017,599 km (0.097 R)
• M26: 59,231,931 km (0.069 R)
• M27: 71,263,788 km (0.047 R)
• M28: 72,371,261 km (0.125 R)
• M29: 74,167,184 km (0.118 R)
• M30: 76,222,808 km (0.114 R)
• M31: 76,916,344 km (0.078 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: 447 - 11,439 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit