🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.8

Radius: 13.9

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.41 AU - 0.65 AU

Year: 271 Days

Day: 6.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 32,360,019 km

• M1: 172,935 km (0.113 R)
• M2: 680,222 km (0.09 R)
• M3: 1,485,507 km (0.097 R)
• M4: 2,047,546 km (0.106 R)
• M5: 2,602,554 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959

Radius: 9.6

Gravity: 10.41 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.61 AU - 0.87 AU

Year: 447 Days

Day: 5 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,360,019 km

• M1: 126,709 km (0.093 R)
• M2: 580,290 km (0.101 R)
• M3: 1,217,876 km (0.085 R)
• M4: 1,925,923 km (0.11 R)
• M5: 2,831,588 km (0.111 R)
• M6: 3,467,828 km (0.073 R)
• M7: 4,167,946 km (0.059 R)
• M8: 4,536,555 km (0.098 R)
• M9: 5,669,011 km (0.029 R)
• M10: 6,464,124 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.1

Radius: 11.4

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.76 AU - 1.14 AU

Year: 651 Days

Day: 8 Hours

Environment

Temp: -172 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,360,019 km

• M1: 141,819 km (0.091 R)
• M2: 553,811 km (0.078 R)
• M3: 927,507 km (0.093 R)
• M4: 1,496,876 km (0.118 R)
• M5: 2,533,440 km (0.098 R)
• M6: 4,191,882 km (0.047 R)
• M7: 4,559,444 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.2

Radius: 8.6

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.82 AU - 1.26 AU

Year: 746 Days

Day: 7.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,360,019 km

• M1: 107,262 km (0.077 R)
• M2: 401,371 km (0.112 R)
• M3: 798,404 km (0.118 R)
• M4: 1,073,664 km (0.109 R)
• M5: 1,706,912 km (0.08 R)
• M6: 2,515,638 km (0.093 R)
• M7: 2,901,152 km (0.061 R)
• M8: 3,261,234 km (0.096 R)
• M9: 4,483,897 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.1

Radius: 10

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.17 AU - 1.23 AU

Year: 924 Days

Day: 9.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,360,019 km

• M1: 124,615 km (0.033 R)
• M2: 513,719 km (0.062 R)
• M3: 851,361 km (0.101 R)
• M4: 1,279,959 km (0.042 R)
• M5: 1,719,029 km (0.066 R)
• M6: 2,115,164 km (0.117 R)
• M7: 3,346,804 km (0.107 R)
• M8: 3,729,774 km (0.117 R)
• M9: 5,506,099 km (0.11 R)
• M10: 5,940,232 km (0.053 R)
• M11: 6,921,893 km (0.106 R)
• M12: 7,381,009 km (0.11 R)
• M13: 8,183,004 km (0.114 R)
• M14: 8,566,273 km (0.101 R)
• M15: 8,934,733 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.6

Radius: 8.5

Gravity: 13.79 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.27 AU - 3.37 AU

Year: 4252 Days

Day: 7.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 32,360,019 km

• M1: 105,766 km (0.094 R)
• M2: 497,862 km (0.1 R)
• M3: 777,610 km (0.062 R)
• M4: 1,277,117 km (0.049 R)
• M5: 1,992,045 km (0.098 R)
• M6: 2,309,193 km (0.051 R)
• M7: 2,894,719 km (0.08 R)
• M8: 3,706,586 km (0.09 R)
• M9: 4,359,880 km (0.069 R)
• M10: 4,740,158 km (0.089 R)
• M11: 5,087,674 km (0.069 R)
• M12: 6,015,929 km (0.089 R)
• M13: 6,296,425 km (0.119 R)
• M14: 8,204,695 km (0.084 R)
• M15: 9,106,621 km (0.088 R)
• M16: 9,393,849 km (0.057 R)
• M17: 13,488,492 km (0.063 R)
• M18: 17,354,699 km (0.118 R)
• M19: 23,939,100 km (0.038 R)
• M20: 25,284,883 km (0.1 R)
• M21: 25,935,334 km (0.11 R)
• M22: 27,269,747 km (0.084 R)
• M23: 28,387,094 km (0.111 R)
• M24: 29,001,193 km (0.054 R)
• M25: 30,712,892 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 298.9

Radius: 6.5

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.4 AU - 7.72 AU

Year: 11810 Days

Day: 23.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 32,360,019 km

• M1: 81,680 km (0.108 R)
• M2: 287,078 km (0.084 R)
• M3: 878,738 km (0.068 R)
• M4: 1,384,528 km (0.027 R)
• M5: 1,818,961 km (0.048 R)
• M6: 2,235,890 km (0.043 R)
• M7: 3,041,774 km (0.072 R)
• M8: 3,326,608 km (0.077 R)
• M9: 3,557,886 km (0.096 R)
• M10: 3,975,713 km (0.085 R)
• M11: 4,183,355 km (0.079 R)
• M12: 4,763,346 km (0.108 R)
• M13: 6,254,089 km (0.109 R)
• M14: 6,500,027 km (0.111 R)
• M15: 6,716,047 km (0.049 R)
• M16: 7,162,297 km (0.077 R)
• M17: 9,058,301 km (0.073 R)
• M18: 15,402,447 km (0.107 R)
• M19: 15,658,110 km (0.098 R)
• M20: 17,528,233 km (0.11 R)
• M21: 19,766,815 km (0.077 R)
• M22: 21,545,983 km (0.065 R)
• M23: 26,410,307 km (0.103 R)
• M24: 31,752,298 km (0.036 R)
• M25: 32,900,761 km (0.104 R)
• M26: 34,184,909 km (0.099 R)
• M27: 37,771,966 km (0.117 R)
• M28: 39,536,623 km (0.071 R)
• M29: 40,621,357 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.5

Radius: 4.4

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.36 AU - 7.92 AU

Year: 12027 Days

Day: 23.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,360,019 km

• M1: 54,753 km (0.063 R)
• M2: 984,055 km (0.112 R)
• M3: 1,252,433 km (0.11 R)
• M4: 1,421,778 km (0.055 R)
• M5: 1,765,255 km (0.086 R)
• M6: 2,130,722 km (0.104 R)
• M7: 2,527,306 km (0.114 R)
• M8: 2,893,821 km (0.117 R)
• M9: 6,956,600 km (0.096 R)
• M10: 20,903,161 km (0.045 R)
• M11: 21,859,690 km (0.113 R)
• M12: 31,623,943 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 104

Radius: 7.2

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 6.53 AU - 8.33 AU

Year: 14236 Days

Day: 23 Hours

Environment

Temp: -232 °C

Axial Tilt: 127 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,360,019 km

• M1: 91,255 km (0.101 R)
• M2: 384,167 km (0.031 R)
• M3: 669,899 km (0.113 R)
• M4: 2,048,294 km (0.116 R)
• M5: 2,281,218 km (0.113 R)
• M6: 2,838,470 km (0.073 R)
• M7: 3,230,566 km (0.115 R)
• M8: 3,461,396 km (0.104 R)
• M9: 5,606,330 km (0.089 R)
• M10: 6,065,745 km (0.09 R)
• M11: 8,352,348 km (0.084 R)
• M12: 8,789,174 km (0.117 R)
• M13: 9,579,649 km (0.094 R)
• M14: 10,507,455 km (0.054 R)
• M15: 11,445,434 km (0.049 R)
• M16: 11,737,449 km (0.069 R)
• M17: 12,798,696 km (0.118 R)
• M18: 20,975,417 km (0.118 R)
• M19: 22,006,146 km (0.07 R)
• M20: 24,487,825 km (0.075 R)
• M21: 25,796,208 km (0.087 R)
• M22: 31,023,606 km (0.12 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: 440 - 15,200 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit