🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.1

Radius: 8

Gravity: 13.35 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.49 AU - 0.69 AU

Year: 302 Days

Day: 13.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,143,778 km

• M1: 99,483 km (0.087 R)
• M2: 360,232 km (0.045 R)
• M3: 628,610 km (0.085 R)
• M4: 880,683 km (0.094 R)
• M5: 1,143,377 km (0.113 R)
• M6: 1,428,211 km (0.103 R)
• M7: 1,789,490 km (0.085 R)
• M8: 2,185,774 km (0.091 R)
• M9: 3,123,005 km (0.086 R)
• M10: 3,581,373 km (0.096 R)
• M11: 4,122,469 km (0.107 R)
• M12: 4,731,033 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.3

Radius: 10

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.73 AU - 0.87 AU

Year: 477 Days

Day: 8.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,143,778 km

• M1: 124,465 km (0.117 R)
• M2: 444,156 km (0.096 R)
• M3: 806,781 km (0.058 R)
• M4: 1,278,314 km (0.056 R)
• M5: 1,592,021 km (0.113 R)
• M6: 1,906,475 km (0.092 R)
• M7: 2,388,629 km (0.095 R)
• M8: 2,766,813 km (0.096 R)
• M9: 3,205,882 km (0.061 R)
• M10: 3,702,697 km (0.118 R)
• M11: 4,024,781 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.5

Radius: 11.2

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.28 AU - 1.42 AU

Year: 1046 Days

Day: 5.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,143,778 km

• M1: 139,276 km (0.11 R)
• M2: 859,440 km (0.075 R)
• M3: 1,378,245 km (0.077 R)
• M4: 1,976,188 km (0.117 R)
• M5: 2,356,166 km (0.087 R)
• M6: 3,816,092 km (0.088 R)
• M7: 4,442,159 km (0.029 R)
• M8: 5,018,111 km (0.044 R)
• M9: 6,358,508 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.8

Radius: 11

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.76 AU - 1.76 AU

Year: 1557 Days

Day: 7.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 56,143,778 km

• M1: 136,732 km (0.117 R)
• M2: 2,152,115 km (0.06 R)
• M3: 3,106,699 km (0.086 R)
• M4: 3,582,719 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413

Radius: 13

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.79 AU - 2.15 AU

Year: 1844 Days

Day: 10.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,143,778 km

• M1: 161,715 km (0.083 R)
• M2: 582,235 km (0.071 R)
• M3: 1,156,242 km (0.105 R)
• M4: 2,036,476 km (0.096 R)
• M5: 2,702,785 km (0.089 R)
• M6: 3,416,815 km (0.112 R)
• M7: 4,567,821 km (0.091 R)
• M8: 5,222,761 km (0.114 R)
• M9: 7,279,283 km (0.105 R)
• M10: 8,288,320 km (0.043 R)
• M11: 8,723,052 km (0.077 R)
• M12: 9,638,441 km (0.091 R)
• M13: 10,718,388 km (0.044 R)
• M14: 11,446,481 km (0.07 R)
• M15: 11,950,177 km (0.074 R)
• M16: 12,356,186 km (0.095 R)
• M17: 12,924,807 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 14.8

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.75 AU - 4.01 AU

Year: 4144 Days

Day: 14.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,143,778 km

• M1: 217,814 km (0.107 R)
• M2: 753,375 km (0.091 R)
• M3: 1,312,721 km (0.089 R)
• M4: 1,916,050 km (0.028 R)
• M5: 2,906,687 km (0.095 R)
• M6: 4,863,576 km (0.09 R)
• M7: 5,679,782 km (0.053 R)
• M8: 6,782,169 km (0.12 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 891.7

Radius: 6.6

Gravity: 20.47 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.97 AU - 7.03 AU

Year: 11051 Days

Day: 15.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 56,143,778 km

• M1: 82,578 km (0.063 R)
• M2: 324,029 km (0.072 R)
• M3: 660,774 km (0.078 R)
• M4: 2,201,033 km (0.104 R)
• M5: 3,738,152 km (0.106 R)
• M6: 5,071,218 km (0.108 R)
• M7: 5,662,429 km (0.092 R)
• M8: 5,918,840 km (0.109 R)
• M9: 6,144,733 km (0.115 R)
• M10: 6,494,343 km (0.101 R)
• M11: 8,445,548 km (0.064 R)
• M12: 9,075,056 km (0.097 R)
• M13: 9,477,624 km (0.061 R)
• M14: 12,513,563 km (0.063 R)
• M15: 15,707,776 km (0.085 R)
• M16: 16,068,906 km (0.088 R)
• M17: 22,443,869 km (0.06 R)
• M18: 29,113,840 km (0.102 R)
• M19: 29,989,137 km (0.114 R)
• M20: 33,309,163 km (0.085 R)
• M21: 34,387,464 km (0.065 R)
• M22: 36,235,895 km (0.1 R)
• M23: 39,197,185 km (0.095 R)
• M24: 46,478,862 km (0.094 R)
• M25: 49,042,072 km (0.062 R)
• M26: 51,856,905 km (0.085 R)
• M27: 55,108,864 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.1

Radius: 8

Gravity: 13.39 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.29 AU - 6.93 AU

Year: 11333 Days

Day: 15.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 56,143,778 km

• M1: 100,231 km (0.116 R)
• M2: 351,256 km (0.112 R)
• M3: 729,439 km (0.087 R)
• M4: 1,084,585 km (0.088 R)
• M5: 1,424,321 km (0.055 R)
• M6: 1,769,144 km (0.096 R)
• M7: 2,059,065 km (0.104 R)
• M8: 2,758,136 km (0.08 R)
• M9: 4,776,510 km (0.118 R)
• M10: 8,778,253 km (0.088 R)
• M11: 9,423,918 km (0.079 R)
• M12: 9,941,826 km (0.113 R)
• M13: 12,758,006 km (0.1 R)
• M14: 15,561,769 km (0.087 R)
• M15: 18,913,659 km (0.111 R)
• M16: 22,081,394 km (0.109 R)
• M17: 24,027,961 km (0.087 R)
• M18: 24,411,381 km (0.111 R)
• M19: 24,994,064 km (0.03 R)
• M20: 26,389,663 km (0.069 R)
• M21: 28,153,422 km (0.117 R)
• M22: 31,683,782 km (0.118 R)
• M23: 40,144,140 km (0.08 R)
• M24: 40,548,503 km (0.118 R)
• M25: 42,892,253 km (0.098 R)
• M26: 44,312,236 km (0.11 R)
• M27: 46,500,553 km (0.086 R)
• M28: 46,946,804 km (0.081 R)
• M29: 50,306,323 km (0.093 R)
• M30: 51,091,562 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 13,316 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit