🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.2

Radius: 14.4

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.78 AU - 1.08 AU

Year: 588 Days

Day: 8.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 19,869,703 km

• M1: 179,966 km (0.077 R)
• M2: 639,830 km (0.1 R)
• M3: 1,493,136 km (0.065 R)
• M4: 2,100,504 km (0.05 R)
• M5: 2,870,783 km (0.072 R)
• M6: 3,323,167 km (0.1 R)
• M7: 3,823,572 km (0.092 R)
• M8: 4,543,736 km (0.108 R)
• M9: 5,028,284 km (0.057 R)
• M10: 6,026,251 km (0.083 R)
• M11: 6,532,789 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289

Radius: 8.6

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.3 AU - 1.3 AU

Year: 972 Days

Day: 10.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 19,869,703 km

• M1: 106,962 km (0.098 R)
• M2: 398,978 km (0.093 R)
• M3: 875,148 km (0.064 R)
• M4: 1,326,933 km (0.094 R)
• M5: 1,709,754 km (0.088 R)
• M6: 2,432,461 km (0.065 R)
• M7: 2,722,083 km (0.071 R)
• M8: 3,034,593 km (0.11 R)
• M9: 3,449,278 km (0.091 R)
• M10: 3,774,205 km (0.116 R)
• M11: 4,742,253 km (0.109 R)
• M12: 5,162,473 km (0.093 R)
• M13: 5,570,726 km (0.1 R)
• M14: 5,924,076 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.2

Radius: 11.8

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.08 AU - 1.74 AU

Year: 1098 Days

Day: 8.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 19,869,703 km

• M1: 146,756 km (0.092 R)
• M2: 521,199 km (0.109 R)
• M3: 916,137 km (0.112 R)
• M4: 1,488,050 km (0.105 R)
• M5: 1,981,274 km (0.106 R)
• M6: 2,911,175 km (0.073 R)
• M7: 3,397,218 km (0.083 R)
• M8: 3,871,742 km (0.099 R)
• M9: 4,319,339 km (0.11 R)
• M10: 5,600,495 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.6

Radius: 11.7

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.23 AU - 1.75 AU

Year: 1193 Days

Day: 14.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 19,869,703 km

• M1: 145,559 km (0.088 R)
• M2: 643,869 km (0.071 R)
• M3: 1,296,864 km (0.119 R)
• M4: 2,657,606 km (0.113 R)
• M5: 3,301,924 km (0.056 R)
• M6: 4,355,542 km (0.103 R)
• M7: 5,313,567 km (0.091 R)
• M8: 5,704,616 km (0.068 R)
• M9: 6,803,113 km (0.106 R)
• M10: 8,609,956 km (0.037 R)
• M11: 9,180,522 km (0.068 R)
• M12: 10,492,495 km (0.112 R)
• M13: 11,077,423 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.5

Radius: 9.5

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.78 AU - 4.44 AU

Year: 4500 Days

Day: 12.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 19,869,703 km

• M1: 119,080 km (0.093 R)
• M2: 443,558 km (0.072 R)
• M3: 963,261 km (0.079 R)
• M4: 1,526,347 km (0.114 R)
• M5: 1,968,708 km (0.12 R)
• M6: 2,394,314 km (0.074 R)
• M7: 2,753,199 km (0.075 R)
• M8: 3,377,172 km (0.119 R)
• M9: 4,030,915 km (0.106 R)
• M10: 4,835,901 km (0.09 R)
• M11: 5,513,579 km (0.112 R)
• M12: 6,791,743 km (0.057 R)
• M13: 9,011,177 km (0.082 R)
• M14: 9,477,923 km (0.113 R)
• M15: 9,922,976 km (0.114 R)
• M16: 11,096,721 km (0.105 R)
• M17: 12,448,338 km (0.101 R)
• M18: 12,758,006 km (0.066 R)
• M19: 13,578,101 km (0.079 R)
• M20: 14,627,829 km (0.109 R)
• M21: 17,764,598 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.6

Radius: 11

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.81 AU - 5.39 AU

Year: 7556 Days

Day: 7.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 19,869,703 km

• M1: 136,882 km (0.093 R)
• M2: 675,285 km (0.087 R)
• M3: 1,734,887 km (0.091 R)
• M4: 2,208,663 km (0.114 R)
• M5: 3,191,820 km (0.108 R)
• M6: 3,748,623 km (0.1 R)
• M7: 4,294,356 km (0.075 R)
• M8: 4,784,439 km (0.106 R)
• M9: 8,276,353 km (0.054 R)
• M10: 8,873,697 km (0.103 R)
• M11: 10,886,087 km (0.108 R)
• M12: 15,140,352 km (0.062 R)
• M13: 22,762,662 km (0.039 R)
• M14: 27,259,425 km (0.096 R)
• M15: 30,410,255 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.5

Radius: 14.4

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.58 AU - 6.1 AU

Year: 9258 Days

Day: 6.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 19,869,703 km

• M1: 179,218 km (0.1 R)
• M2: 652,995 km (0.119 R)
• M3: 2,541,967 km (0.045 R)
• M4: 3,763,882 km (0.113 R)
• M5: 4,493,322 km (0.043 R)
• M6: 5,061,943 km (0.095 R)
• M7: 5,644,627 km (0.041 R)
• M8: 6,128,726 km (0.119 R)
• M9: 6,640,500 km (0.104 R)
• M10: 8,751,924 km (0.083 R)
• M11: 9,546,289 km (0.104 R)
• M12: 10,959,390 km (0.087 R)
• M13: 11,496,447 km (0.119 R)
• M14: 13,274,417 km (0.102 R)
• M15: 14,642,939 km (0.07 R)
• M16: 15,163,390 km (0.041 R)
• M17: 16,172,427 km (0.119 R)
• M18: 18,549,837 km (0.111 R)
• M19: 19,861,511 km (0.081 R)
• M20: 20,419,361 km (0.039 R)
• M21: 21,817,503 km (0.107 R)
• M22: 24,530,311 km (0.033 R)
• M23: 25,451,535 km (0.086 R)
• M24: 28,053,939 km (0.034 R)
• M25: 29,677,375 km (0.06 R)
• M26: 32,778,090 km (0.087 R)
• M27: 34,692,943 km (0.106 R)
• M28: 37,643,013 km (0.047 R)
• M29: 42,310,467 km (0.094 R)
• M30: 44,038,023 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 17.1

Radius: 6.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.69 AU - 10.75 AU

Year: 16892 Days

Day: 24.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 19,869,703 km

• M1: 81,980 km (0.048 R)
• M2: 397,482 km (0.101 R)
• M3: 604,525 km (0.06 R)
• M4: 1,860,100 km (0.096 R)
• M5: 4,291,365 km (0.071 R)
• M6: 4,506,636 km (0.08 R)
• M7: 5,874,110 km (0.101 R)
• M8: 9,800,456 km (0.089 R)
• M9: 12,579,984 km (0.116 R)
• M10: 14,363,191 km (0.115 R)
• M11: 15,692,069 km (0.118 R)
• M12: 19,633,225 km (0.104 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: 199 - 12,334 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit