🌌 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: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.8

Radius: 13.2

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.85 AU - 0.87 AU

Year: 523 Days

Day: 10.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 80.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,866,645 km

• M1: 164,558 km (0.109 R)
• M2: 679,773 km (0.096 R)
• M3: 1,265,448 km (0.089 R)
• M4: 1,783,057 km (0.068 R)
• M5: 2,714,453 km (0.087 R)
• M6: 3,131,532 km (0.041 R)
• M7: 3,661,109 km (0.118 R)
• M8: 4,705,451 km (0.026 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.6

Radius: 12.9

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.03 AU - 1.23 AU

Year: 788 Days

Day: 11.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,866,645 km

• M1: 160,369 km (0.077 R)
• M2: 585,975 km (0.111 R)
• M3: 1,016,966 km (0.119 R)
• M4: 1,823,748 km (0.03 R)
• M5: 2,439,044 km (0.098 R)
• M6: 3,212,465 km (0.066 R)
• M7: 3,853,342 km (0.115 R)
• M8: 4,739,560 km (0.096 R)
• M9: 5,774,328 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.9

Radius: 11.4

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.48 AU - 2.38 AU

Year: 1759 Days

Day: 6.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,866,645 km

• M1: 141,819 km (0.083 R)
• M2: 803,041 km (0.103 R)
• M3: 1,878,500 km (0.114 R)
• M4: 2,791,047 km (0.06 R)
• M5: 3,776,000 km (0.077 R)
• M6: 5,756,676 km (0.111 R)
• M7: 6,303,456 km (0.079 R)
• M8: 8,098,182 km (0.049 R)
• M9: 9,143,571 km (0.044 R)
• M10: 9,573,516 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 923.2

Radius: 10.8

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.61 AU - 3.05 AU

Year: 3123 Days

Day: 7.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,866,645 km

• M1: 134,339 km (0.091 R)
• M2: 490,831 km (0.112 R)
• M3: 921,074 km (0.078 R)
• M4: 1,303,297 km (0.12 R)
• M5: 1,650,962 km (0.113 R)
• M6: 2,021,366 km (0.057 R)
• M7: 2,865,398 km (0.071 R)
• M8: 3,255,848 km (0.115 R)
• M9: 3,804,423 km (0.092 R)
• M10: 4,277,901 km (0.103 R)
• M11: 4,839,042 km (0.084 R)
• M12: 5,343,486 km (0.09 R)
• M13: 8,027,571 km (0.034 R)
• M14: 8,591,256 km (0.101 R)
• M15: 9,332,663 km (0.113 R)
• M16: 9,797,613 km (0.077 R)
• M17: 10,690,413 km (0.101 R)
• M18: 13,843,488 km (0.113 R)
• M19: 15,283,666 km (0.077 R)
• M20: 17,221,258 km (0.101 R)
• M21: 18,824,050 km (0.03 R)
• M22: 20,137,669 km (0.081 R)
• M23: 21,578,446 km (0.109 R)
• M24: 23,652,321 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.3

Radius: 10.8

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.19 AU - 4.19 AU

Year: 4650 Days

Day: 14 Hours

Environment

Temp: -206 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,866,645 km

• M1: 134,638 km (0.075 R)
• M2: 685,158 km (0.111 R)
• M3: 1,046,288 km (0.111 R)
• M4: 1,720,824 km (0.099 R)
• M5: 2,181,436 km (0.1 R)
• M6: 3,139,012 km (0.108 R)
• M7: 3,491,315 km (0.03 R)
• M8: 3,832,697 km (0.117 R)
• M9: 4,196,519 km (0.104 R)
• M10: 4,583,529 km (0.103 R)
• M11: 5,940,083 km (0.105 R)
• M12: 6,376,609 km (0.092 R)
• M13: 7,314,289 km (0.098 R)
• M14: 7,726,281 km (0.109 R)
• M15: 10,058,961 km (0.056 R)
• M16: 10,458,238 km (0.098 R)
• M17: 10,905,984 km (0.057 R)
• M18: 11,250,209 km (0.049 R)
• M19: 13,383,026 km (0.03 R)
• M20: 14,361,844 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 121.2

Radius: 5.3

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.39 AU - 8.69 AU

Year: 14955 Days

Day: 24.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,866,645 km

• M1: 68,516 km (0.076 R)
• M2: 338,540 km (0.1 R)
• M3: 749,635 km (0.115 R)
• M4: 1,132,755 km (0.04 R)
• M5: 1,446,462 km (0.1 R)
• M6: 2,008,501 km (0.066 R)
• M7: 2,214,348 km (0.046 R)
• M8: 2,649,677 km (0.106 R)
• M9: 3,182,096 km (0.06 R)
• M10: 4,249,178 km (0.109 R)
• M11: 6,038,368 km (0.079 R)
• M12: 6,468,612 km (0.089 R)
• M13: 6,990,409 km (0.053 R)
• M14: 7,279,881 km (0.106 R)
• M15: 7,539,733 km (0.115 R)
• M16: 8,518,552 km (0.085 R)
• M17: 9,756,773 km (0.109 R)
• M18: 11,908,439 km (0.081 R)
• M19: 12,797,649 km (0.09 R)
• M20: 16,416,122 km (0.096 R)
• M21: 20,588,706 km (0.102 R)
• M22: 21,789,827 km (0.111 R)
• M23: 22,563,697 km (0.086 R)
• M24: 24,084,509 km (0.076 R)
• M25: 32,722,290 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.5

Radius: 6.2

Gravity: 18.09 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 10.46 AU - 11.2 AU

Year: 23380 Days

Day: 17.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,866,645 km

• M1: 77,193 km (0.119 R)
• M2: 346,469 km (0.098 R)
• M3: 539,300 km (0.058 R)
• M4: 807,529 km (0.103 R)
• M5: 1,550,283 km (0.079 R)
• M6: 2,412,565 km (0.058 R)
• M7: 2,829,494 km (0.03 R)
• M8: 4,302,734 km (0.065 R)
• M9: 6,269,647 km (0.114 R)
• M10: 7,104,552 km (0.106 R)
• M11: 9,221,662 km (0.093 R)
• M12: 9,631,111 km (0.092 R)
• M13: 20,382,710 km (0.101 R)
• M14: 20,678,465 km (0.069 R)
• M15: 25,578,693 km (0.06 R)
• M16: 28,174,216 km (0.107 R)
• M17: 30,681,326 km (0.102 R)
• M18: 36,713,113 km (0.103 R)
• M19: 43,815,720 km (0.107 R)
• M20: 52,148,471 km (0.106 R)
• M21: 52,887,036 km (0.093 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: 162 - 10,905 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit