🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.7

Radius: 14.4

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.87 AU - 0.93 AU

Year: 560 Days

Day: 11.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 76,207,305 km

• M1: 179,667 km (0.119 R)
• M2: 842,086 km (0.037 R)
• M3: 1,466,957 km (0.109 R)
• M4: 1,960,929 km (0.11 R)
• M5: 2,660,149 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.2

Radius: 13.5

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.38 AU - 1.42 AU

Year: 1087 Days

Day: 11.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,207,305 km

• M1: 167,849 km (0.079 R)
• M2: 681,867 km (0.105 R)
• M3: 1,633,160 km (0.076 R)
• M4: 2,412,714 km (0.028 R)
• M5: 2,998,091 km (0.115 R)
• M6: 3,850,350 km (0.062 R)
• M7: 4,320,387 km (0.098 R)
• M8: 5,251,932 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.7

Radius: 12.2

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.09 AU - 2.87 AU

Year: 2562 Days

Day: 10.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,207,305 km

• M1: 151,692 km (0.065 R)
• M2: 655,987 km (0.109 R)
• M3: 1,158,935 km (0.107 R)
• M4: 1,929,214 km (0.113 R)
• M5: 2,986,871 km (0.073 R)
• M6: 4,948,099 km (0.104 R)
• M7: 5,544,247 km (0.105 R)
• M8: 7,259,985 km (0.106 R)
• M9: 7,768,318 km (0.116 R)
• M10: 9,503,205 km (0.119 R)
• M11: 12,610,502 km (0.104 R)
• M12: 13,597,998 km (0.087 R)
• M13: 14,859,108 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.2

Radius: 9.8

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.43 AU - 5.63 AU

Year: 6325 Days

Day: 12.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 56 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,207,305 km

• M1: 122,221 km (0.118 R)
• M2: 483,052 km (0.095 R)
• M3: 1,913,506 km (0.111 R)
• M4: 3,200,347 km (0.119 R)
• M5: 4,289,719 km (0.08 R)
• M6: 5,038,157 km (0.118 R)
• M7: 7,809,906 km (0.114 R)
• M8: 10,610,528 km (0.054 R)
• M9: 11,592,040 km (0.075 R)
• M10: 12,104,861 km (0.09 R)
• M11: 12,812,160 km (0.061 R)
• M12: 13,221,909 km (0.115 R)
• M13: 14,212,396 km (0.076 R)
• M14: 15,099,960 km (0.097 R)
• M15: 17,480,212 km (0.115 R)
• M16: 18,847,088 km (0.069 R)
• M17: 20,100,269 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.6

Radius: 12.5

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 4.55 AU - 6.33 AU

Year: 8324 Days

Day: 12.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,207,305 km

• M1: 160,070 km (0.065 R)
• M2: 1,375,104 km (0.059 R)
• M3: 1,890,319 km (0.071 R)
• M4: 2,363,796 km (0.082 R)
• M5: 2,974,604 km (0.106 R)
• M6: 3,825,966 km (0.062 R)
• M7: 4,779,203 km (0.056 R)
• M8: 6,700,489 km (0.086 R)
• M9: 7,777,294 km (0.107 R)
• M10: 8,557,148 km (0.102 R)
• M11: 9,091,511 km (0.067 R)
• M12: 10,318,364 km (0.094 R)
• M13: 11,260,381 km (0.114 R)
• M14: 12,054,447 km (0.084 R)
• M15: 12,832,505 km (0.094 R)
• M16: 14,260,118 km (0.094 R)
• M17: 17,299,199 km (0.054 R)
• M18: 19,108,286 km (0.098 R)
• M19: 20,094,435 km (0.047 R)
• M20: 21,040,342 km (0.112 R)
• M21: 24,626,652 km (0.118 R)
• M22: 28,783,827 km (0.033 R)
• M23: 31,316,669 km (0.071 R)
• M24: 32,193,013 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 638.3

Radius: 3.4

Gravity: 55.22 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.81 AU - 8.53 AU

Year: 12595 Days

Day: 16.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 76,207,305 km

• M1: 43,982 km (0.109 R)
• M2: 165,006 km (0.078 R)
• M3: 371,152 km (0.071 R)
• M4: 688,898 km (0.083 R)
• M5: 806,033 km (0.037 R)
• M6: 1,265,748 km (0.104 R)
• M7: 1,428,809 km (0.072 R)
• M8: 1,715,289 km (0.081 R)
• M9: 1,932,505 km (0.094 R)
• M10: 2,630,379 km (0.086 R)
• M11: 3,404,698 km (0.081 R)
• M12: 3,941,754 km (0.075 R)
• M13: 4,290,018 km (0.098 R)
• M14: 5,779,415 km (0.111 R)
• M15: 6,343,997 km (0.062 R)
• M16: 6,579,763 km (0.049 R)
• M17: 7,625,602 km (0.104 R)
• M18: 7,937,214 km (0.048 R)
• M19: 9,830,525 km (0.112 R)
• M20: 10,414,405 km (0.096 R)
• M21: 11,592,937 km (0.074 R)
• M22: 13,298,503 km (0.039 R)
• M23: 13,619,689 km (0.108 R)
• M24: 14,078,057 km (0.101 R)
• M25: 14,411,810 km (0.073 R)
• M26: 14,887,681 km (0.052 R)
• M27: 19,735,101 km (0.09 R)
• M28: 23,429,570 km (0.036 R)
• M29: 24,468,228 km (0.118 R)
• M30: 26,233,333 km (0.113 R)
• M31: 26,738,226 km (0.073 R)
• M32: 30,234,627 km (0.092 R)
• M33: 30,901,385 km (0.05 R)
• M34: 34,744,853 km (0.107 R)
• M35: 35,353,717 km (0.091 R)
• M36: 37,222,793 km (0.087 R)
• M37: 39,156,644 km (0.115 R)
• M38: 39,551,283 km (0.068 R)
• M39: 41,701,005 km (0.078 R)
• M40: 41,975,068 km (0.106 R)
• M41: 49,836,885 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 71.3

Radius: 3.9

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.51 AU - 10.79 AU

Year: 19665 Days

Day: 19.5 Hours

Environment

Temp: -239 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,207,305 km

• M1: 52,958 km (0.082 R)
• M2: 375,790 km (0.055 R)
• M3: 507,137 km (0.058 R)
• M4: 875,297 km (0.119 R)
• M5: 1,912,310 km (0.072 R)
• M6: 2,466,570 km (0.089 R)
• M7: 3,488,622 km (0.115 R)
• M8: 5,801,405 km (0.053 R)
• M9: 9,140,879 km (0.047 R)
• M10: 13,910,807 km (0.105 R)
• M11: 14,081,947 km (0.118 R)
• M12: 18,076,360 km (0.099 R)
• M13: 20,921,711 km (0.093 R)
• M14: 21,448,595 km (0.074 R)
• M15: 25,217,115 km (0.073 R)
• M16: 29,685,902 km (0.104 R)
• M17: 31,710,261 km (0.115 R)
• M18: 34,969,101 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 517.8

Radius: 6.1

Gravity: 13.92 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 10.56 AU - 10.9 AU

Year: 23057 Days

Day: 17.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,207,305 km

• M1: 75,846 km (0.108 R)
• M2: 332,855 km (0.086 R)
• M3: 534,812 km (0.079 R)
• M4: 931,546 km (0.066 R)
• M5: 1,445,115 km (0.103 R)
• M6: 2,524,015 km (0.066 R)
• M7: 2,912,521 km (0.074 R)
• M8: 3,808,463 km (0.101 R)
• M9: 4,661,769 km (0.105 R)
• M10: 7,106,198 km (0.097 R)
• M11: 7,681,252 km (0.096 R)
• M12: 11,218,644 km (0.054 R)
• M13: 11,538,933 km (0.072 R)
• M14: 13,953,442 km (0.12 R)
• M15: 17,271,373 km (0.071 R)
• M16: 18,751,943 km (0.1 R)
• M17: 19,939,900 km (0.035 R)
• M18: 27,903,892 km (0.1 R)
• M19: 28,491,812 km (0.03 R)
• M20: 29,087,960 km (0.06 R)
• M21: 31,937,500 km (0.092 R)
• M22: 34,159,627 km (0.064 R)
• M23: 37,754,314 km (0.088 R)
• M24: 38,040,943 km (0.069 R)
• M25: 39,642,837 km (0.111 R)
• M26: 43,449,654 km (0.093 R)
• M27: 45,846,960 km (0.105 R)
• M28: 59,165,359 km (0.088 R)
• M29: 64,732,644 km (0.038 R)
• M30: 69,558,971 km (0.089 R)
• M31: 73,276,627 km (0.04 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 20,157 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit