🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661

Radius: 11.8

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.76 AU - 0.94 AU

Year: 532 Days

Day: 11.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,943,453 km

• M1: 146,756 km (0.072 R)
• M2: 755,619 km (0.117 R)
• M3: 1,195,287 km (0.097 R)
• M4: 1,662,780 km (0.112 R)
• M5: 2,270,297 km (0.096 R)
• M6: 2,642,497 km (0.106 R)
• M7: 3,290,704 km (0.086 R)
• M8: 3,810,856 km (0.106 R)
• M9: 4,211,629 km (0.104 R)
• M10: 4,763,795 km (0.072 R)
• M11: 5,448,803 km (0.108 R)
• M12: 6,124,088 km (0.119 R)
• M13: 6,598,313 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.8

Radius: 10.6

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.79 AU - 0.99 AU

Year: 569 Days

Day: 12.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,943,453 km

• M1: 131,945 km (0.08 R)
• M2: 510,428 km (0.03 R)
• M3: 1,018,313 km (0.072 R)
• M4: 1,833,172 km (0.096 R)
• M5: 2,246,212 km (0.118 R)
• M6: 2,599,113 km (0.094 R)
• M7: 3,001,232 km (0.118 R)
• M8: 4,576,947 km (0.077 R)
• M9: 4,993,427 km (0.084 R)
• M10: 5,921,981 km (0.107 R)
• M11: 6,602,502 km (0.076 R)
• M12: 7,379,065 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.7

Radius: 11.3

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1 AU - 1.12 AU

Year: 740 Days

Day: 9.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,943,453 km

• M1: 140,472 km (0.083 R)
• M2: 534,064 km (0.113 R)
• M3: 952,340 km (0.07 R)
• M4: 1,507,348 km (0.103 R)
• M5: 3,276,343 km (0.115 R)
• M6: 4,135,932 km (0.116 R)
• M7: 4,973,082 km (0.068 R)
• M8: 5,772,084 km (0.117 R)
• M9: 6,221,925 km (0.119 R)
• M10: 6,878,660 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 445.7

Radius: 12.5

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.92 AU - 1.34 AU

Year: 815 Days

Day: 9.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,943,453 km

• M1: 229,334 km (0.074 R)
• M2: 678,875 km (0.101 R)
• M3: 1,249,890 km (0.102 R)
• M4: 1,640,490 km (0.086 R)
• M5: 2,425,729 km (0.107 R)
• M6: 2,999,138 km (0.109 R)
• M7: 3,408,887 km (0.105 R)
• M8: 3,970,627 km (0.105 R)
• M9: 4,625,417 km (0.092 R)
• M10: 5,530,633 km (0.057 R)
• M11: 6,428,968 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.1

Radius: 14.2

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.45 AU - 1.59 AU

Year: 1271 Days

Day: 6.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,943,453 km

• M1: 186,698 km (0.025 R)
• M2: 860,038 km (0.108 R)
• M3: 1,625,680 km (0.111 R)
• M4: 2,241,126 km (0.068 R)
• M5: 4,045,575 km (0.106 R)
• M6: 5,444,016 km (0.067 R)
• M7: 6,769,752 km (0.057 R)
• M8: 7,410,331 km (0.106 R)
• M9: 9,035,711 km (0.063 R)
• M10: 9,784,000 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.3

Radius: 12.8

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.2 AU - 5.42 AU

Year: 8299 Days

Day: 6.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,943,453 km

• M1: 159,322 km (0.118 R)
• M2: 815,159 km (0.089 R)
• M3: 1,233,883 km (0.036 R)
• M4: 1,672,055 km (0.101 R)
• M5: 3,163,097 km (0.057 R)
• M6: 3,708,082 km (0.076 R)
• M7: 4,193,528 km (0.061 R)
• M8: 4,695,129 km (0.079 R)
• M9: 5,378,642 km (0.059 R)
• M10: 5,911,061 km (0.047 R)
• M11: 6,381,396 km (0.102 R)
• M12: 7,116,670 km (0.117 R)
• M13: 8,363,269 km (0.102 R)
• M14: 10,499,377 km (0.11 R)
• M15: 13,187,052 km (0.111 R)
• M16: 13,829,426 km (0.067 R)
• M17: 17,550,224 km (0.081 R)
• M18: 19,400,301 km (0.058 R)
• M19: 22,489,796 km (0.06 R)
• M20: 25,235,665 km (0.114 R)
• M21: 26,646,971 km (0.072 R)
• M22: 28,995,508 km (0.112 R)
• M23: 31,668,523 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160.3

Radius: 3.8

Gravity: 11.1 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.89 AU - 7.61 AU

Year: 11895 Days

Day: 17.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,943,453 km

• M1: 47,273 km (0.059 R)
• M2: 376,388 km (0.097 R)
• M3: 540,198 km (0.103 R)
• M4: 829,969 km (0.076 R)
• M5: 1,142,479 km (0.119 R)
• M6: 3,529,163 km (0.029 R)
• M7: 6,474,596 km (0.096 R)
• M8: 9,566,933 km (0.088 R)
• M9: 11,163,292 km (0.11 R)
• M10: 16,622,268 km (0.1 R)
• M11: 17,514,620 km (0.076 R)
• M12: 19,324,903 km (0.09 R)
• M13: 28,887,798 km (0.086 R)
• M14: 31,595,669 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 74.8

Radius: 7.5

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.27 AU - 9.91 AU

Year: 15607 Days

Day: 18.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,943,453 km

• M1: 105,167 km (0.117 R)
• M2: 882,179 km (0.069 R)
• M3: 1,301,202 km (0.102 R)
• M4: 2,060,112 km (0.081 R)
• M5: 4,242,296 km (0.056 R)
• M6: 7,925,097 km (0.1 R)
• M7: 12,648,051 km (0.113 R)
• M8: 14,565,447 km (0.088 R)
• M9: 18,243,610 km (0.071 R)
• M10: 19,846,102 km (0.113 R)
• M11: 23,328,741 km (0.058 R)
• M12: 29,912,992 km (0.082 R)

Asteroid Belt

Center: 8.52 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.8

Radius: 4.9

Gravity: 23.57 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 7.29 AU - 10.61 AU

Year: 18160 Days

Day: 15.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,943,453 km

• M1: 61,036 km (0.076 R)
• M2: 218,263 km (0.086 R)
• M3: 451,038 km (0.114 R)
• M4: 707,299 km (0.099 R)
• M5: 1,451,847 km (0.082 R)
• M6: 1,675,347 km (0.033 R)
• M7: 2,442,784 km (0.116 R)
• M8: 2,620,655 km (0.085 R)
• M9: 3,233,708 km (0.071 R)
• M10: 3,907,496 km (0.066 R)
• M11: 5,123,129 km (0.116 R)
• M12: 5,875,606 km (0.057 R)
• M13: 7,183,690 km (0.073 R)
• M14: 8,371,198 km (0.065 R)
• M15: 12,775,957 km (0.103 R)
• M16: 13,382,427 km (0.091 R)
• M17: 19,552,741 km (0.092 R)
• M18: 22,032,475 km (0.072 R)
• M19: 25,024,732 km (0.073 R)
• M20: 29,074,496 km (0.047 R)
• M21: 34,562,194 km (0.117 R)
• M22: 34,820,999 km (0.097 R)
• M23: 35,736,837 km (0.115 R)
• M24: 41,571,603 km (0.073 R)
• M25: 45,484,335 km (0.03 R)
• M26: 53,858,375 km (0.099 R)
• M27: 55,967,855 km (0.112 R)
• M28: 60,163,776 km (0.064 R)
• M29: 63,203,156 km (0.052 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 12,538 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit