🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.7

Radius: 9.8

Gravity: 8.73 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.25 AU - 1.73 AU

Year: 1174 Days

Day: 8.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,376,395 km

• M1: 121,922 km (0.098 R)
• M2: 488,138 km (0.12 R)
• M3: 942,766 km (0.119 R)
• M4: 1,346,082 km (0.082 R)
• M5: 1,903,932 km (0.049 R)
• M6: 3,434,767 km (0.084 R)
• M7: 4,000,995 km (0.083 R)
• M8: 4,497,959 km (0.066 R)
• M9: 4,956,177 km (0.11 R)
• M10: 5,320,149 km (0.07 R)
• M11: 5,989,001 km (0.064 R)
• M12: 6,884,195 km (0.07 R)
• M13: 7,286,763 km (0.103 R)
• M14: 7,731,667 km (0.104 R)
• M15: 9,387,865 km (0.096 R)
• M16: 10,560,562 km (0.067 R)
• M17: 11,899,763 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.5

Radius: 13.3

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.79 AU - 1.95 AU

Year: 1651 Days

Day: 12.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,376,395 km

• M1: 165,455 km (0.101 R)
• M2: 641,625 km (0.089 R)
• M3: 1,163,273 km (0.045 R)
• M4: 1,692,251 km (0.086 R)
• M5: 3,086,354 km (0.063 R)
• M6: 5,201,069 km (0.113 R)
• M7: 6,392,616 km (0.103 R)
• M8: 7,431,274 km (0.06 R)
• M9: 8,254,960 km (0.082 R)
• M10: 8,772,270 km (0.085 R)
• M11: 10,581,506 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.6

Radius: 13.4

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.26 AU - 2.6 AU

Year: 2446 Days

Day: 13.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,376,395 km

• M1: 170,542 km (0.103 R)
• M2: 660,774 km (0.117 R)
• M3: 1,183,469 km (0.077 R)
• M4: 1,644,230 km (0.072 R)
• M5: 3,018,735 km (0.063 R)
• M6: 3,572,996 km (0.116 R)
• M7: 4,064,724 km (0.043 R)
• M8: 4,702,459 km (0.071 R)
• M9: 5,406,317 km (0.112 R)
• M10: 6,998,188 km (0.106 R)
• M11: 7,917,168 km (0.111 R)
• M12: 8,665,756 km (0.093 R)
• M13: 12,025,425 km (0.1 R)
• M14: 14,187,712 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.9

Radius: 15

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.95 AU - 3.23 AU

Year: 3507 Days

Day: 12.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,376,395 km

• M1: 186,549 km (0.04 R)
• M2: 657,483 km (0.032 R)
• M3: 1,561,054 km (0.091 R)
• M4: 2,037,074 km (0.087 R)
• M5: 2,764,569 km (0.115 R)
• M6: 3,402,304 km (0.095 R)
• M7: 4,610,008 km (0.1 R)
• M8: 5,264,349 km (0.1 R)
• M9: 5,953,696 km (0.073 R)
• M10: 6,616,265 km (0.104 R)
• M11: 8,288,919 km (0.087 R)
• M12: 8,765,388 km (0.11 R)
• M13: 9,551,226 km (0.117 R)
• M14: 10,228,904 km (0.115 R)
• M15: 11,019,230 km (0.104 R)
• M16: 11,935,517 km (0.075 R)
• M17: 12,456,267 km (0.025 R)
• M18: 14,206,562 km (0.101 R)
• M19: 16,432,429 km (0.094 R)
• M20: 17,462,260 km (0.119 R)
• M21: 18,477,132 km (0.114 R)
• M22: 18,999,079 km (0.116 R)
• M23: 20,624,460 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.6

Radius: 11.2

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.58 AU - 5.28 AU

Year: 6020 Days

Day: 11.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,376,395 km

• M1: 163,062 km (0.062 R)
• M2: 691,741 km (0.089 R)
• M3: 1,057,358 km (0.058 R)
• M4: 2,024,508 km (0.108 R)
• M5: 2,930,173 km (0.117 R)
• M6: 4,461,756 km (0.118 R)
• M7: 4,884,670 km (0.117 R)
• M8: 6,948,821 km (0.044 R)
• M9: 8,376,284 km (0.092 R)
• M10: 8,790,520 km (0.04 R)
• M11: 11,570,947 km (0.035 R)
• M12: 12,566,520 km (0.09 R)
• M13: 13,210,988 km (0.11 R)
• M14: 16,357,779 km (0.083 R)
• M15: 22,756,080 km (0.071 R)
• M16: 25,239,106 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 142.7

Radius: 6

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 6.04 AU - 7.38 AU

Year: 11223 Days

Day: 22.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,376,395 km

• M1: 74,649 km (0.076 R)
• M2: 323,131 km (0.113 R)
• M3: 524,789 km (0.052 R)
• M4: 753,824 km (0.066 R)
• M5: 1,502,860 km (0.053 R)
• M6: 3,192,269 km (0.097 R)
• M7: 4,403,713 km (0.076 R)
• M8: 4,975,625 km (0.11 R)
• M9: 5,566,537 km (0.115 R)
• M10: 5,863,937 km (0.098 R)
• M11: 6,361,649 km (0.115 R)
• M12: 6,719,787 km (0.108 R)
• M13: 7,802,127 km (0.088 R)
• M14: 9,036,310 km (0.115 R)
• M15: 10,710,011 km (0.104 R)
• M16: 17,014,663 km (0.038 R)
• M17: 17,451,788 km (0.07 R)
• M18: 18,024,599 km (0.069 R)
• M19: 18,218,328 km (0.048 R)
• M20: 19,818,277 km (0.119 R)
• M21: 21,437,375 km (0.104 R)
• M22: 22,614,411 km (0.039 R)
• M23: 25,338,139 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 586.7

Radius: 6.1

Gravity: 15.77 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 7.26 AU - 10.86 AU

Year: 17608 Days

Day: 20.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,376,395 km

• M1: 75,846 km (0.103 R)
• M2: 327,619 km (0.081 R)
• M3: 1,626,877 km (0.115 R)
• M4: 2,089,433 km (0.103 R)
• M5: 2,681,691 km (0.1 R)
• M6: 4,987,892 km (0.111 R)
• M7: 5,458,378 km (0.092 R)
• M8: 5,685,168 km (0.063 R)
• M9: 6,362,397 km (0.096 R)
• M10: 7,500,239 km (0.09 R)
• M11: 9,506,197 km (0.062 R)
• M12: 10,808,446 km (0.114 R)
• M13: 12,289,764 km (0.082 R)
• M14: 12,812,160 km (0.113 R)
• M15: 21,479,561 km (0.065 R)
• M16: 31,538,971 km (0.109 R)
• M17: 36,631,881 km (0.114 R)
• M18: 38,536,411 km (0.077 R)
• M19: 49,382,108 km (0.089 R)
• M20: 51,703,268 km (0.073 R)
• M21: 60,961,581 km (0.029 R)
• M22: 62,668,642 km (0.091 R)
• M23: 63,630,557 km (0.116 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 18,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit