🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.2

Radius: 9.5

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.61 AU - 0.67 AU

Year: 353 Days

Day: 12.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,918,264 km

• M1: 118,182 km (0.116 R)
• M2: 461,659 km (0.073 R)
• M3: 816,804 km (0.118 R)
• M4: 1,200,673 km (0.057 R)
• M5: 1,737,878 km (0.092 R)
• M6: 2,070,584 km (0.117 R)
• M7: 2,402,991 km (0.119 R)
• M8: 3,345,756 km (0.069 R)
• M9: 4,083,573 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.8

Radius: 13.8

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.42 AU - 1.82 AU

Year: 1423 Days

Day: 10.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,918,264 km

• M1: 171,589 km (0.048 R)
• M2: 628,760 km (0.03 R)
• M3: 1,276,219 km (0.104 R)
• M4: 1,864,289 km (0.098 R)
• M5: 3,766,874 km (0.108 R)
• M6: 5,894,754 km (0.053 R)
• M7: 6,527,703 km (0.095 R)
• M8: 7,474,957 km (0.089 R)
• M9: 9,322,042 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964

Radius: 10.1

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.45 AU - 1.99 AU

Year: 1557 Days

Day: 5.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,918,264 km

• M1: 125,662 km (0.043 R)
• M2: 529,576 km (0.099 R)
• M3: 985,252 km (0.084 R)
• M4: 1,309,430 km (0.116 R)
• M5: 1,928,765 km (0.112 R)
• M6: 2,447,571 km (0.12 R)
• M7: 2,981,486 km (0.078 R)
• M8: 3,456,459 km (0.07 R)
• M9: 3,872,490 km (0.119 R)
• M10: 4,321,583 km (0.074 R)
• M11: 4,784,439 km (0.095 R)
• M12: 5,644,926 km (0.028 R)
• M13: 6,841,709 km (0.102 R)
• M14: 7,387,442 km (0.103 R)
• M15: 7,786,569 km (0.119 R)
• M16: 8,535,157 km (0.087 R)
• M17: 9,662,975 km (0.033 R)
• M18: 10,887,284 km (0.113 R)
• M19: 11,329,944 km (0.091 R)
• M20: 11,746,275 km (0.083 R)
• M21: 12,251,467 km (0.099 R)
• M22: 13,983,212 km (0.081 R)
• M23: 14,952,906 km (0.115 R)
• M24: 15,270,502 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.2

Radius: 14.3

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.52 AU - 2.02 AU

Year: 1625 Days

Day: 10 Hours

Environment

Temp: -197 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,918,264 km

• M1: 177,872 km (0.096 R)
• M2: 1,020,856 km (0.117 R)
• M3: 1,500,167 km (0.111 R)
• M4: 2,349,285 km (0.078 R)
• M5: 3,105,801 km (0.112 R)
• M6: 3,550,556 km (0.098 R)
• M7: 5,172,197 km (0.052 R)
• M8: 6,283,559 km (0.071 R)
• M9: 6,948,971 km (0.092 R)
• M10: 7,576,683 km (0.037 R)
• M11: 8,035,350 km (0.093 R)
• M12: 10,265,555 km (0.08 R)
• M13: 10,721,380 km (0.073 R)
• M14: 11,901,408 km (0.099 R)
• M15: 13,166,258 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.1

Radius: 9.4

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 2.15 AU - 2.59 AU

Year: 2518 Days

Day: 7.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,918,264 km

• M1: 118,182 km (0.114 R)
• M2: 429,495 km (0.075 R)
• M3: 1,284,447 km (0.101 R)
• M4: 1,824,346 km (0.081 R)
• M5: 2,377,858 km (0.11 R)
• M6: 4,094,793 km (0.1 R)
• M7: 4,522,792 km (0.112 R)
• M8: 5,653,902 km (0.069 R)
• M9: 7,747,674 km (0.116 R)
• M10: 9,657,889 km (0.091 R)
• M11: 10,067,787 km (0.101 R)
• M12: 10,524,809 km (0.085 R)
• M13: 11,143,246 km (0.109 R)
• M14: 12,254,010 km (0.106 R)
• M15: 13,144,716 km (0.059 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 990.5

Radius: 4.2

Gravity: 56.15 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 5.81 AU - 6.03 AU

Year: 9942 Days

Day: 16.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 65,918,264 km

• M1: 63,280 km (0.046 R)
• M2: 200,312 km (0.105 R)
• M3: 351,405 km (0.092 R)
• M4: 483,800 km (0.087 R)
• M5: 691,591 km (0.112 R)
• M6: 1,125,874 km (0.103 R)
• M7: 1,300,903 km (0.078 R)
• M8: 1,990,699 km (0.1 R)
• M9: 2,267,305 km (0.077 R)
• M10: 2,548,101 km (0.1 R)
• M11: 2,942,590 km (0.11 R)
• M12: 3,478,749 km (0.087 R)
• M13: 4,222,400 km (0.038 R)
• M14: 5,906,722 km (0.118 R)
• M15: 6,092,672 km (0.068 R)
• M16: 7,992,416 km (0.061 R)
• M17: 9,075,953 km (0.078 R)
• M18: 9,424,217 km (0.107 R)
• M19: 10,307,144 km (0.118 R)
• M20: 11,243,926 km (0.087 R)
• M21: 12,116,380 km (0.103 R)
• M22: 12,970,584 km (0.109 R)
• M23: 14,866,139 km (0.076 R)
• M24: 15,280,226 km (0.107 R)
• M25: 15,844,210 km (0.089 R)
• M26: 18,082,792 km (0.086 R)
• M27: 18,633,911 km (0.113 R)
• M28: 19,686,930 km (0.08 R)
• M29: 23,359,708 km (0.117 R)
• M30: 27,670,669 km (0.095 R)
• M31: 29,903,268 km (0.042 R)
• M32: 31,682,735 km (0.12 R)
• M33: 32,946,388 km (0.053 R)
• M34: 33,414,031 km (0.118 R)
• M35: 41,783,134 km (0.114 R)
• M36: 41,919,717 km (0.103 R)
• M37: 52,869,683 km (0.086 R)
• M38: 53,029,453 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 341.2

Radius: 3.9

Gravity: 22.43 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.72 AU - 11.9 AU

Year: 22851 Days

Day: 24.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,918,264 km

• M1: 71,059 km (0.065 R)
• M2: 241,152 km (0.102 R)
• M3: 829,221 km (0.066 R)
• M4: 1,206,208 km (0.041 R)
• M5: 2,247,708 km (0.062 R)
• M6: 3,251,510 km (0.048 R)
• M7: 5,775,076 km (0.056 R)
• M8: 7,516,844 km (0.055 R)
• M9: 19,682,741 km (0.089 R)
• M10: 22,352,615 km (0.097 R)
• M11: 27,066,444 km (0.048 R)
• M12: 33,395,780 km (0.048 R)
• M13: 39,229,349 km (0.113 R)
• M14: 40,643,647 km (0.11 R)
• M15: 42,532,619 km (0.1 R)
• M16: 45,090,145 km (0.046 R)
• M17: 53,202,388 km (0.108 R)
• M18: 58,873,943 km (0.094 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: 288 - 14,662 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit