🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.6

Radius: 14.4

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.58 AU - 0.82 AU

Year: 404 Days

Day: 8.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,907,799 km

• M1: 179,517 km (0.065 R)
• M2: 637,137 km (0.095 R)
• M3: 1,447,659 km (0.064 R)
• M4: 2,390,125 km (0.076 R)
• M5: 3,282,476 km (0.075 R)
• M6: 3,782,881 km (0.041 R)
• M7: 4,308,269 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402

Radius: 9.4

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.61 AU - 0.93 AU

Year: 466 Days

Day: 8.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 92.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,907,799 km

• M1: 116,836 km (0.084 R)
• M2: 526,734 km (0.117 R)
• M3: 823,387 km (0.08 R)
• M4: 1,231,340 km (0.044 R)
• M5: 1,694,046 km (0.111 R)
• M6: 2,729,114 km (0.076 R)
• M7: 3,161,901 km (0.08 R)
• M8: 3,498,645 km (0.091 R)
• M9: 4,599,835 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.4

Radius: 12.6

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.76 AU - 1.04 AU

Year: 589 Days

Day: 9.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 62,907,799 km

• M1: 156,629 km (0.07 R)
• M2: 601,383 km (0.104 R)
• M3: 1,120,338 km (0.119 R)
• M4: 1,722,171 km (0.086 R)
• M5: 2,339,262 km (0.094 R)
• M6: 3,089,794 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.5

Radius: 9.9

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.95 AU - 1.01 AU

Year: 670 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,907,799 km

• M1: 126,111 km (0.118 R)
• M2: 481,406 km (0.037 R)
• M3: 908,358 km (0.072 R)
• M4: 1,570,030 km (0.12 R)
• M5: 1,946,717 km (0.11 R)
• M6: 2,931,669 km (0.116 R)
• M7: 3,367,448 km (0.091 R)
• M8: 4,792,817 km (0.061 R)
• M9: 5,123,877 km (0.062 R)
• M10: 5,850,623 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586

Radius: 13.2

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 1.11 AU - 1.55 AU

Year: 1059 Days

Day: 6.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,907,799 km

• M1: 164,109 km (0.093 R)
• M2: 659,427 km (0.08 R)
• M3: 1,244,804 km (0.034 R)
• M4: 1,715,738 km (0.049 R)
• M5: 2,190,711 km (0.08 R)
• M6: 2,852,682 km (0.105 R)
• M7: 3,398,714 km (0.026 R)
• M8: 4,390,997 km (0.091 R)
• M9: 5,488,746 km (0.087 R)
• M10: 6,060,359 km (0.032 R)
• M11: 6,648,728 km (0.077 R)
• M12: 7,714,463 km (0.115 R)
• M13: 8,432,982 km (0.092 R)
• M14: 10,123,438 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.7

Radius: 9.6

Gravity: 9.24 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.27 AU - 1.87 AU

Year: 1358 Days

Day: 10.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,907,799 km

• M1: 119,379 km (0.088 R)
• M2: 458,966 km (0.056 R)
• M3: 803,041 km (0.08 R)
• M4: 1,185,114 km (0.112 R)
• M5: 2,414,360 km (0.108 R)
• M6: 2,725,673 km (0.119 R)
• M7: 3,213,213 km (0.114 R)
• M8: 3,982,146 km (0.101 R)
• M9: 4,326,071 km (0.06 R)
• M10: 4,689,744 km (0.107 R)
• M11: 5,790,784 km (0.063 R)
• M12: 6,377,956 km (0.117 R)
• M13: 7,134,173 km (0.092 R)
• M14: 7,725,982 km (0.112 R)
• M15: 8,555,652 km (0.105 R)
• M16: 10,871,277 km (0.083 R)
• M17: 12,784,185 km (0.069 R)
• M18: 13,097,144 km (0.086 R)
• M19: 13,495,673 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.8

Radius: 13.1

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.67 AU - 5.59 AU

Year: 6877 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 62,907,799 km

• M1: 163,062 km (0.12 R)
• M2: 800,349 km (0.113 R)
• M3: 1,456,784 km (0.111 R)
• M4: 2,025,555 km (0.109 R)
• M5: 2,722,083 km (0.075 R)
• M6: 3,250,612 km (0.097 R)
• M7: 4,260,099 km (0.067 R)
• M8: 5,409,160 km (0.043 R)
• M9: 5,835,215 km (0.113 R)
• M10: 7,322,816 km (0.05 R)
• M11: 8,313,453 km (0.092 R)
• M12: 8,841,384 km (0.108 R)
• M13: 10,607,536 km (0.115 R)
• M14: 11,229,265 km (0.082 R)
• M15: 12,336,888 km (0.112 R)
• M16: 13,571,220 km (0.099 R)
• M17: 14,886,335 km (0.053 R)
• M18: 18,441,827 km (0.071 R)
• M19: 19,131,623 km (0.069 R)
• M20: 22,295,169 km (0.111 R)
• M21: 22,920,039 km (0.067 R)
• M22: 24,123,255 km (0.054 R)
• M23: 27,005,707 km (0.091 R)
• M24: 30,490,888 km (0.08 R)
• M25: 32,940,703 km (0.108 R)
• M26: 33,446,045 km (0.104 R)
• M27: 34,575,957 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.1

Radius: 12.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.51 AU - 5.51 AU

Year: 8928 Days

Day: 5.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,907,799 km

• M1: 150,495 km (0.062 R)
• M2: 815,757 km (0.108 R)
• M3: 1,982,321 km (0.111 R)
• M4: 2,908,482 km (0.045 R)
• M5: 4,051,260 km (0.07 R)
• M6: 4,916,235 km (0.049 R)
• M7: 5,900,589 km (0.044 R)
• M8: 7,203,586 km (0.088 R)
• M9: 8,733,823 km (0.078 R)
• M10: 10,321,804 km (0.093 R)
• M11: 11,080,565 km (0.087 R)
• M12: 11,930,580 km (0.09 R)
• M13: 14,931,663 km (0.075 R)
• M14: 18,330,676 km (0.073 R)
• M15: 19,292,590 km (0.111 R)
• M16: 20,287,715 km (0.047 R)
• M17: 24,880,071 km (0.095 R)
• M18: 34,367,867 km (0.12 R)
• M19: 37,684,452 km (0.043 R)
• M20: 38,635,595 km (0.112 R)
• M21: 39,238,175 km (0.114 R)
• M22: 42,986,200 km (0.103 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 397.6

Radius: 5.1

Gravity: 15.29 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 8.15 AU - 10.55 AU

Year: 19735 Days

Day: 24 Hours

Environment

Temp: -240 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,907,799 km

• M1: 63,579 km (0.094 R)
• M2: 356,193 km (0.114 R)
• M3: 566,228 km (0.089 R)
• M4: 788,830 km (0.12 R)
• M5: 976,425 km (0.113 R)
• M6: 1,155,344 km (0.081 R)
• M7: 1,864,139 km (0.101 R)
• M8: 2,711,910 km (0.081 R)
• M9: 3,220,992 km (0.057 R)
• M10: 5,527,043 km (0.094 R)
• M11: 7,547,961 km (0.055 R)
• M12: 9,795,070 km (0.077 R)
• M13: 10,124,933 km (0.055 R)
• M14: 28,642,308 km (0.098 R)
• M15: 42,164,309 km (0.099 R)
• M16: 43,036,315 km (0.063 R)
• M17: 44,816,231 km (0.1 R)
• M18: 45,420,307 km (0.109 R)
• M19: 56,537,374 km (0.096 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 359 - 14,959 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit