🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.3

Radius: 10.4

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.63 AU - 0.69 AU

Year: 358 Days

Day: 5.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,845,889 km

• M1: 129,402 km (0.082 R)
• M2: 456,274 km (0.055 R)
• M3: 1,000,211 km (0.098 R)
• M4: 1,491,192 km (0.038 R)
• M5: 1,814,622 km (0.074 R)
• M6: 2,177,846 km (0.028 R)
• M7: 3,237,597 km (0.056 R)
• M8: 3,561,177 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.8

Radius: 10.5

Gravity: 8.76 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.05 AU - 1.09 AU

Year: 738 Days

Day: 14.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,845,889 km

• M1: 130,599 km (0.104 R)
• M2: 527,033 km (0.111 R)
• M3: 856,747 km (0.092 R)
• M4: 1,375,104 km (0.051 R)
• M5: 1,839,755 km (0.076 R)
• M6: 2,321,310 km (0.099 R)
• M7: 2,873,326 km (0.115 R)
• M8: 3,412,627 km (0.098 R)
• M9: 4,112,745 km (0.032 R)
• M10: 4,590,710 km (0.081 R)
• M11: 5,502,210 km (0.119 R)
• M12: 6,272,340 km (0.077 R)
• M13: 6,862,054 km (0.112 R)
• M14: 7,205,381 km (0.108 R)
• M15: 7,681,103 km (0.112 R)
• M16: 8,695,675 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.2

Radius: 9.6

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.1 AU - 1.6 AU

Year: 1046 Days

Day: 12.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 38,845,889 km

• M1: 119,379 km (0.1 R)
• M2: 511,924 km (0.049 R)
• M3: 856,448 km (0.083 R)
• M4: 1,229,395 km (0.12 R)
• M5: 1,540,260 km (0.108 R)
• M6: 2,051,585 km (0.107 R)
• M7: 2,577,123 km (0.112 R)
• M8: 2,897,860 km (0.065 R)
• M9: 3,371,936 km (0.075 R)
• M10: 4,868,812 km (0.108 R)
• M11: 5,441,323 km (0.084 R)
• M12: 5,868,126 km (0.05 R)
• M13: 7,931,081 km (0.084 R)
• M14: 8,642,419 km (0.093 R)
• M15: 9,055,758 km (0.091 R)
• M16: 9,539,856 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.1

Radius: 13.3

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.51 AU - 1.65 AU

Year: 1324 Days

Day: 7.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,845,889 km

• M1: 165,455 km (0.096 R)
• M2: 642,972 km (0.103 R)
• M3: 1,081,144 km (0.044 R)
• M4: 1,737,280 km (0.105 R)
• M5: 2,935,260 km (0.109 R)
• M6: 3,907,048 km (0.105 R)
• M7: 4,768,731 km (0.098 R)
• M8: 5,815,318 km (0.096 R)
• M9: 6,777,083 km (0.094 R)
• M10: 7,272,102 km (0.039 R)
• M11: 8,073,049 km (0.08 R)
• M12: 8,575,997 km (0.072 R)
• M13: 10,000,318 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.6

Radius: 10.6

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.52 AU - 3.14 AU

Year: 3175 Days

Day: 12.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,845,889 km

• M1: 131,945 km (0.067 R)
• M2: 524,341 km (0.094 R)
• M3: 863,629 km (0.1 R)
• M4: 1,290,730 km (0.103 R)
• M5: 1,704,967 km (0.089 R)
• M6: 2,099,756 km (0.08 R)
• M7: 3,025,019 km (0.11 R)
• M8: 3,437,759 km (0.097 R)
• M9: 3,888,049 km (0.053 R)
• M10: 4,421,963 km (0.064 R)
• M11: 4,931,494 km (0.113 R)
• M12: 5,326,582 km (0.075 R)
• M13: 6,068,886 km (0.104 R)
• M14: 7,309,950 km (0.109 R)
• M15: 7,726,431 km (0.114 R)
• M16: 9,858,051 km (0.081 R)
• M17: 10,447,018 km (0.116 R)
• M18: 12,717,465 km (0.058 R)
• M19: 13,558,354 km (0.083 R)
• M20: 14,535,677 km (0.085 R)
• M21: 16,357,929 km (0.074 R)
• M22: 16,795,054 km (0.098 R)
• M23: 19,828,450 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.2

Radius: 12.3

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.89 AU - 3.75 AU

Year: 4034 Days

Day: 11.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,845,889 km

• M1: 157,527 km (0.117 R)
• M2: 549,024 km (0.104 R)
• M3: 1,011,880 km (0.108 R)
• M4: 1,646,474 km (0.04 R)
• M5: 2,146,430 km (0.115 R)
• M6: 2,866,295 km (0.099 R)
• M7: 3,741,443 km (0.119 R)
• M8: 4,151,790 km (0.042 R)
• M9: 4,664,611 km (0.079 R)
• M10: 5,115,499 km (0.117 R)
• M11: 5,513,430 km (0.111 R)
• M12: 5,932,004 km (0.095 R)
• M13: 6,341,753 km (0.088 R)
• M14: 7,618,571 km (0.094 R)
• M15: 8,210,530 km (0.072 R)
• M16: 8,795,308 km (0.107 R)
• M17: 11,108,091 km (0.106 R)
• M18: 13,448,549 km (0.049 R)
• M19: 13,851,416 km (0.094 R)
• M20: 14,628,577 km (0.064 R)
• M21: 15,325,404 km (0.069 R)
• M22: 18,583,197 km (0.09 R)
• M23: 22,984,366 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.1

Radius: 9

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.98 AU - 6.34 AU

Year: 7816 Days

Day: 7.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,845,889 km

• M1: 111,899 km (0.081 R)
• M2: 462,407 km (0.036 R)
• M3: 910,303 km (0.109 R)
• M4: 1,222,663 km (0.077 R)
• M5: 2,587,445 km (0.089 R)
• M6: 5,572,521 km (0.08 R)
• M7: 6,157,000 km (0.063 R)
• M8: 7,680,205 km (0.107 R)
• M9: 8,036,697 km (0.053 R)
• M10: 11,199,345 km (0.08 R)
• M11: 11,866,402 km (0.03 R)
• M12: 13,678,930 km (0.07 R)
• M13: 14,144,628 km (0.095 R)
• M14: 14,681,236 km (0.1 R)
• M15: 18,896,605 km (0.097 R)
• M16: 19,915,665 km (0.119 R)
• M17: 26,096,152 km (0.115 R)
• M18: 29,617,985 km (0.055 R)
• M19: 30,299,702 km (0.087 R)
• M20: 31,795,531 km (0.112 R)
• M21: 32,923,200 km (0.039 R)
• M22: 34,183,712 km (0.083 R)
• M23: 37,929,643 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.7

Radius: 5

Gravity: 7.87 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.65 AU - 9.29 AU

Year: 13615 Days

Day: 18.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 38,845,889 km

• M1: 62,233 km (0.065 R)
• M2: 332,406 km (0.104 R)
• M3: 1,768,097 km (0.063 R)
• M4: 2,207,167 km (0.104 R)
• M5: 2,398,353 km (0.09 R)
• M6: 2,976,848 km (0.067 R)
• M7: 3,788,267 km (0.095 R)
• M8: 6,585,448 km (0.102 R)
• M9: 7,057,280 km (0.101 R)
• M10: 7,473,910 km (0.117 R)
• M11: 9,992,689 km (0.065 R)
• M12: 12,858,386 km (0.109 R)
• M13: 13,768,090 km (0.076 R)
• M14: 14,598,508 km (0.073 R)
• M15: 16,358,677 km (0.106 R)
• M16: 17,087,368 km (0.092 R)
• M17: 23,296,577 km (0.076 R)
• M18: 27,311,485 km (0.067 R)
• M19: 28,809,408 km (0.077 R)
• M20: 29,096,187 km (0.12 R)
• M21: 31,459,834 km (0.067 R)
• M22: 32,896,123 km (0.107 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 10,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit