🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.9

Radius: 12

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.56 AU - 0.76 AU

Year: 358 Days

Day: 6.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 116.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,215,549 km

• M1: 149,299 km (0.064 R)
• M2: 664,813 km (0.061 R)
• M3: 1,082,341 km (0.102 R)
• M4: 1,466,957 km (0.114 R)
• M5: 1,892,712 km (0.065 R)
• M6: 2,563,360 km (0.116 R)
• M7: 2,980,438 km (0.101 R)
• M8: 3,443,145 km (0.082 R)
• M9: 3,916,323 km (0.117 R)
• M10: 4,821,240 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.7

Radius: 13.3

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.96 AU - 1.3 AU

Year: 801 Days

Day: 6.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,215,549 km

• M1: 165,455 km (0.038 R)
• M2: 628,012 km (0.087 R)
• M3: 1,061,696 km (0.098 R)
• M4: 1,672,953 km (0.106 R)
• M5: 2,279,722 km (0.119 R)
• M6: 2,846,548 km (0.111 R)
• M7: 3,705,090 km (0.115 R)
• M8: 4,266,980 km (0.095 R)
• M9: 4,815,855 km (0.119 R)
• M10: 7,198,051 km (0.095 R)
• M11: 8,973,479 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245

Radius: 10.2

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.13 AU - 1.47 AU

Year: 988 Days

Day: 14.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,215,549 km

• M1: 126,859 km (0.118 R)
• M2: 683,213 km (0.086 R)
• M3: 1,004,251 km (0.118 R)
• M4: 1,587,233 km (0.101 R)
• M5: 2,116,810 km (0.061 R)
• M6: 2,599,263 km (0.084 R)
• M7: 3,153,972 km (0.051 R)
• M8: 3,650,487 km (0.092 R)
• M9: 3,981,547 km (0.074 R)
• M10: 4,531,469 km (0.085 R)
• M11: 5,216,328 km (0.092 R)
• M12: 5,710,151 km (0.084 R)
• M13: 6,589,188 km (0.086 R)
• M14: 7,103,505 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.9

Radius: 13.2

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.47 AU - 2.11 AU

Year: 1597 Days

Day: 10.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,215,549 km

• M1: 164,258 km (0.104 R)
• M2: 709,842 km (0.031 R)
• M3: 1,368,521 km (0.096 R)
• M4: 2,728,964 km (0.084 R)
• M5: 4,065,023 km (0.119 R)
• M6: 5,228,446 km (0.094 R)
• M7: 6,820,765 km (0.055 R)
• M8: 7,934,521 km (0.116 R)
• M9: 8,535,157 km (0.043 R)
• M10: 9,085,527 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.8

Radius: 13.3

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.65 AU - 2.63 AU

Year: 2088 Days

Day: 11.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,215,549 km

• M1: 165,605 km (0.099 R)
• M2: 629,209 km (0.111 R)
• M3: 1,227,002 km (0.092 R)
• M4: 2,016,131 km (0.079 R)
• M5: 2,672,416 km (0.068 R)
• M6: 3,202,591 km (0.11 R)
• M7: 3,875,931 km (0.056 R)
• M8: 4,416,279 km (0.026 R)
• M9: 5,184,913 km (0.097 R)
• M10: 6,066,044 km (0.119 R)
• M11: 6,529,648 km (0.106 R)
• M12: 7,100,364 km (0.05 R)
• M13: 7,616,028 km (0.112 R)
• M14: 8,852,005 km (0.109 R)
• M15: 9,484,206 km (0.093 R)
• M16: 10,913,613 km (0.071 R)
• M17: 12,605,865 km (0.078 R)
• M18: 15,629,686 km (0.114 R)
• M19: 16,063,221 km (0.079 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 980.4

Radius: 6.7

Gravity: 21.84 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.27 AU - 9.43 AU

Year: 16090 Days

Day: 23.4 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,215,549 km

• M1: 83,326 km (0.11 R)
• M2: 883,076 km (0.118 R)
• M3: 1,254,977 km (0.117 R)
• M4: 1,641,089 km (0.077 R)
• M5: 1,947,016 km (0.117 R)
• M6: 2,579,965 km (0.091 R)
• M7: 3,866,656 km (0.116 R)
• M8: 4,245,737 km (0.071 R)
• M9: 6,181,833 km (0.082 R)
• M10: 6,656,208 km (0.067 R)
• M11: 7,973,567 km (0.099 R)
• M12: 8,907,057 km (0.081 R)
• M13: 9,681,974 km (0.102 R)
• M14: 11,620,613 km (0.066 R)
• M15: 15,768,663 km (0.119 R)
• M16: 16,247,226 km (0.089 R)
• M17: 27,164,879 km (0.077 R)
• M18: 27,507,159 km (0.088 R)
• M19: 29,381,770 km (0.107 R)
• M20: 34,304,437 km (0.112 R)
• M21: 37,591,851 km (0.068 R)
• M22: 43,527,595 km (0.099 R)
• M23: 50,573,206 km (0.072 R)
• M24: 70,888,447 km (0.041 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 887.8

Radius: 8

Gravity: 13.87 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 8.17 AU - 13.29 AU

Year: 23438 Days

Day: 19.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,215,549 km

• M1: 107,860 km (0.105 R)
• M2: 380,278 km (0.076 R)
• M3: 636,689 km (0.077 R)
• M4: 1,080,246 km (0.065 R)
• M5: 2,078,513 km (0.119 R)
• M6: 2,636,662 km (0.093 R)
• M7: 3,290,854 km (0.119 R)
• M8: 3,624,906 km (0.028 R)
• M9: 4,290,617 km (0.117 R)
• M10: 5,648,068 km (0.101 R)
• M11: 6,128,426 km (0.107 R)
• M12: 7,071,342 km (0.106 R)
• M13: 10,223,070 km (0.11 R)
• M14: 11,544,767 km (0.111 R)
• M15: 11,892,283 km (0.042 R)
• M16: 12,175,322 km (0.077 R)
• M17: 16,801,786 km (0.052 R)
• M18: 26,944,671 km (0.113 R)
• M19: 27,556,676 km (0.031 R)
• M20: 28,177,806 km (0.113 R)
• M21: 32,929,035 km (0.071 R)
• M22: 35,493,441 km (0.095 R)
• M23: 40,695,109 km (0.076 R)
• M24: 42,481,158 km (0.089 R)
• M25: 50,332,802 km (0.08 R)
• M26: 54,695,824 km (0.104 R)
• M27: 60,131,463 km (0.079 R)
• M28: 66,137,667 km (0.082 R)
• M29: 68,375,951 km (0.072 R)
• M30: 70,433,370 km (0.117 R)
• M31: 74,911,433 km (0.049 R)
• M32: 79,325,318 km (0.092 R)
• M33: 82,362,454 km (0.116 R)
• M34: 91,661,907 km (0.228 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.1

Radius: 6.6

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 10.25 AU - 11.55 AU

Year: 23998 Days

Day: 21.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,215,549 km

• M1: 106,514 km (0.093 R)
• M2: 642,672 km (0.072 R)
• M3: 860,337 km (0.082 R)
• M4: 1,090,269 km (0.048 R)
• M5: 1,390,961 km (0.101 R)
• M6: 3,428,634 km (0.051 R)
• M7: 4,109,902 km (0.076 R)
• M8: 11,035,985 km (0.099 R)
• M9: 11,470,716 km (0.08 R)
• M10: 13,675,938 km (0.107 R)
• M11: 15,217,544 km (0.091 R)
• M12: 15,834,187 km (0.094 R)
• M13: 20,532,607 km (0.077 R)
• M14: 32,810,553 km (0.116 R)
• M15: 40,755,247 km (0.119 R)
• M16: 63,213,328 km (0.099 R)
• M17: 70,577,283 km (0.094 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 12,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit