🌌 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: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520

Radius: 10.8

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.49 AU - 0.77 AU

Year: 345 Days

Day: 12.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,029,239 km

• M1: 134,339 km (0.07 R)
• M2: 482,304 km (0.114 R)
• M3: 929,003 km (0.113 R)
• M4: 1,286,841 km (0.045 R)
• M5: 1,921,585 km (0.108 R)
• M6: 2,447,571 km (0.092 R)
• M7: 3,017,239 km (0.092 R)
• M8: 3,382,857 km (0.067 R)
• M9: 3,969,131 km (0.046 R)
• M10: 4,621,826 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.1

Radius: 9.5

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.6 AU - 0.68 AU

Year: 353 Days

Day: 14.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,029,239 km

• M1: 118,182 km (0.081 R)
• M2: 438,172 km (0.08 R)
• M3: 795,711 km (0.06 R)
• M4: 1,447,509 km (0.11 R)
• M5: 1,777,971 km (0.105 R)
• M6: 2,557,525 km (0.099 R)
• M7: 2,933,465 km (0.117 R)
• M8: 3,346,056 km (0.12 R)
• M9: 4,094,793 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 8.5

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.67 AU - 0.73 AU

Year: 404 Days

Day: 7.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,029,239 km

• M1: 106,514 km (0.114 R)
• M2: 382,073 km (0.109 R)
• M3: 682,914 km (0.103 R)
• M4: 956,379 km (0.087 R)
• M5: 1,329,177 km (0.046 R)
• M6: 1,649,167 km (0.11 R)
• M7: 1,914,703 km (0.081 R)
• M8: 2,262,668 km (0.081 R)
• M9: 2,582,807 km (0.088 R)
• M10: 3,806,967 km (0.05 R)
• M11: 4,460,410 km (0.096 R)
• M12: 4,874,796 km (0.077 R)
• M13: 5,218,273 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.2

Radius: 10.2

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.64 AU - 0.94 AU

Year: 485 Days

Day: 13.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,029,239 km

• M1: 127,457 km (0.093 R)
• M2: 447,447 km (0.03 R)
• M3: 838,197 km (0.113 R)
• M4: 1,285,046 km (0.088 R)
• M5: 1,611,169 km (0.089 R)
• M6: 1,936,395 km (0.104 R)
• M7: 2,445,776 km (0.12 R)
• M8: 2,933,165 km (0.116 R)
• M9: 3,632,835 km (0.03 R)
• M10: 4,022,537 km (0.093 R)
• M11: 4,644,715 km (0.096 R)
• M12: 4,979,216 km (0.059 R)
• M13: 5,886,975 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517

Radius: 13.8

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.91 AU - 0.93 AU

Year: 609 Days

Day: 7.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,029,239 km

• M1: 171,888 km (0.06 R)
• M2: 895,194 km (0.12 R)
• M3: 1,537,717 km (0.061 R)
• M4: 2,038,869 km (0.092 R)
• M5: 2,608,837 km (0.087 R)
• M6: 3,039,230 km (0.1 R)
• M7: 4,130,248 km (0.105 R)
• M8: 4,628,259 km (0.106 R)
• M9: 5,997,079 km (0.093 R)
• M10: 6,464,274 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173

Radius: 10.5

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.33 AU - 1.89 AU

Year: 1410 Days

Day: 11.8 Hours

Environment

Temp: -192 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,029,239 km

• M1: 130,599 km (0.11 R)
• M2: 813,962 km (0.101 R)
• M3: 1,541,606 km (0.107 R)
• M4: 1,910,514 km (0.103 R)
• M5: 2,549,148 km (0.102 R)
• M6: 3,832,697 km (0.065 R)
• M7: 4,749,284 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.3

Radius: 13.9

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.07 AU - 4.73 AU

Year: 6371 Days

Day: 14.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,029,239 km

• M1: 172,935 km (0.119 R)
• M2: 646,263 km (0.088 R)
• M3: 1,230,891 km (0.062 R)
• M4: 2,649,677 km (0.101 R)
• M5: 3,557,737 km (0.104 R)
• M6: 4,315,450 km (0.097 R)
• M7: 6,021,913 km (0.065 R)
• M8: 7,174,564 km (0.06 R)
• M9: 7,784,176 km (0.118 R)
• M10: 8,386,905 km (0.067 R)
• M11: 10,242,069 km (0.11 R)
• M12: 11,266,216 km (0.078 R)
• M13: 12,846,268 km (0.12 R)
• M14: 14,272,086 km (0.081 R)
• M15: 17,640,581 km (0.059 R)
• M16: 18,896,156 km (0.101 R)
• M17: 21,274,164 km (0.106 R)
• M18: 26,438,282 km (0.119 R)
• M19: 30,376,745 km (0.083 R)
• M20: 32,898,068 km (0.076 R)
• M21: 35,446,916 km (0.1 R)
• M22: 36,546,909 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83.3

Radius: 6.3

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.87 AU - 7.21 AU

Year: 11545 Days

Day: 23.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 54,029,239 km

• M1: 80,783 km (0.092 R)
• M2: 687,851 km (0.116 R)
• M3: 997,818 km (0.113 R)
• M4: 1,234,182 km (0.078 R)
• M5: 1,623,885 km (0.034 R)
• M6: 1,860,998 km (0.109 R)
• M7: 2,405,534 km (0.11 R)
• M8: 2,977,895 km (0.053 R)
• M9: 3,315,837 km (0.088 R)
• M10: 6,562,410 km (0.104 R)
• M11: 7,366,798 km (0.056 R)
• M12: 9,602,239 km (0.101 R)
• M13: 10,765,661 km (0.116 R)
• M14: 11,652,029 km (0.107 R)
• M15: 12,634,288 km (0.034 R)
• M16: 13,368,814 km (0.109 R)
• M17: 13,569,424 km (0.114 R)
• M18: 16,249,770 km (0.108 R)
• M19: 25,436,724 km (0.057 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.6

Radius: 6.7

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 8.96 AU - 10.44 AU

Year: 20853 Days

Day: 24.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,029,239 km

• M1: 83,326 km (0.08 R)
• M2: 357,838 km (0.092 R)
• M3: 590,014 km (0.051 R)
• M4: 857,345 km (0.118 R)
• M5: 1,098,647 km (0.114 R)
• M6: 1,867,580 km (0.06 R)
• M7: 2,517,283 km (0.111 R)
• M8: 2,771,749 km (0.102 R)
• M9: 3,640,464 km (0.062 R)
• M10: 3,966,887 km (0.098 R)
• M11: 4,283,286 km (0.112 R)
• M12: 8,815,952 km (0.111 R)
• M13: 9,355,552 km (0.092 R)
• M14: 12,692,931 km (0.091 R)
• M15: 13,961,371 km (0.075 R)
• M16: 16,970,981 km (0.111 R)
• M17: 17,804,989 km (0.079 R)
• M18: 18,745,810 km (0.093 R)
• M19: 19,967,875 km (0.081 R)
• M20: 20,302,525 km (0.118 R)
• M21: 25,000,347 km (0.066 R)
• M22: 27,496,986 km (0.115 R)
• M23: 31,829,490 km (0.054 R)
• M24: 34,038,153 km (0.085 R)
• M25: 35,240,621 km (0.081 R)
• M26: 39,804,403 km (0.065 R)
• M27: 43,056,511 km (0.103 R)
• M28: 43,896,354 km (0.112 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 15,723 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit