🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.2

Radius: 8.6

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.59 AU - 0.91 AU

Year: 413 Days

Day: 9.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,647,943 km

• M1: 107,112 km (0.088 R)
• M2: 436,527 km (0.084 R)
• M3: 750,832 km (0.065 R)
• M4: 1,572,722 km (0.069 R)
• M5: 1,841,251 km (0.105 R)
• M6: 2,250,102 km (0.099 R)
• M7: 2,634,867 km (0.031 R)
• M8: 2,918,355 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.2

Radius: 8.1

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1 AU - 1 AU

Year: 636 Days

Day: 12.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,647,943 km

• M1: 103,971 km (0.109 R)
• M2: 675,434 km (0.041 R)
• M3: 1,043,744 km (0.063 R)
• M4: 1,968,558 km (0.077 R)
• M5: 2,567,997 km (0.082 R)
• M6: 2,876,468 km (0.114 R)
• M7: 3,716,909 km (0.084 R)
• M8: 3,990,074 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.2

Radius: 12.9

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.21 AU - 1.39 AU

Year: 942 Days

Day: 9 Hours

Environment

Temp: -172 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,647,943 km

• M1: 160,369 km (0.119 R)
• M2: 660,475 km (0.102 R)
• M3: 1,127,818 km (0.091 R)
• M4: 1,543,850 km (0.079 R)
• M5: 2,103,944 km (0.085 R)
• M6: 2,666,582 km (0.104 R)
• M7: 3,596,482 km (0.102 R)
• M8: 4,323,977 km (0.119 R)
• M9: 5,000,309 km (0.078 R)
• M10: 5,450,748 km (0.04 R)
• M11: 6,786,956 km (0.072 R)
• M12: 7,317,131 km (0.053 R)
• M13: 7,974,763 km (0.033 R)
• M14: 9,492,733 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.7

Radius: 8.7

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.09 AU - 2.19 AU

Year: 1990 Days

Day: 11.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,647,943 km

• M1: 108,309 km (0.049 R)
• M2: 416,331 km (0.104 R)
• M3: 696,976 km (0.095 R)
• M4: 1,665,772 km (0.041 R)
• M5: 2,383,244 km (0.106 R)
• M6: 2,877,964 km (0.12 R)
• M7: 3,606,655 km (0.081 R)
• M8: 4,725,498 km (0.1 R)
• M9: 5,185,062 km (0.098 R)
• M10: 5,673,948 km (0.119 R)
• M11: 8,875,193 km (0.065 R)
• M12: 9,426,611 km (0.088 R)
• M13: 9,877,947 km (0.118 R)
• M14: 11,019,978 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.5

Radius: 8.6

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.68 AU - 3.04 AU

Year: 3075 Days

Day: 7.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,647,943 km

• M1: 106,962 km (0.116 R)
• M2: 411,993 km (0.067 R)
• M3: 893,398 km (0.079 R)
• M4: 1,167,911 km (0.105 R)
• M5: 1,839,156 km (0.052 R)
• M6: 2,216,741 km (0.102 R)
• M7: 2,533,440 km (0.043 R)
• M8: 2,956,353 km (0.038 R)
• M9: 3,358,323 km (0.108 R)
• M10: 3,652,133 km (0.039 R)
• M11: 4,019,844 km (0.069 R)
• M12: 4,311,710 km (0.112 R)
• M13: 4,617,787 km (0.067 R)
• M14: 5,696,388 km (0.116 R)
• M15: 6,743,423 km (0.065 R)
• M16: 7,072,987 km (0.112 R)
• M17: 7,823,819 km (0.049 R)
• M18: 8,342,924 km (0.062 R)
• M19: 9,348,371 km (0.113 R)
• M20: 11,023,717 km (0.057 R)
• M21: 11,327,700 km (0.063 R)
• M22: 12,112,042 km (0.1 R)
• M23: 12,641,020 km (0.109 R)
• M24: 13,527,836 km (0.088 R)
• M25: 14,008,793 km (0.061 R)
• M26: 14,546,299 km (0.119 R)
• M27: 14,820,063 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.6

Radius: 8

Gravity: 12.57 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.74 AU - 5.34 AU

Year: 7194 Days

Day: 9.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,647,943 km

• M1: 99,782 km (0.113 R)
• M2: 611,855 km (0.076 R)
• M3: 870,510 km (0.082 R)
• M4: 1,568,384 km (0.044 R)
• M5: 2,118,156 km (0.101 R)
• M6: 2,633,970 km (0.116 R)
• M7: 3,165,192 km (0.105 R)
• M8: 3,621,016 km (0.103 R)
• M9: 4,145,955 km (0.113 R)
• M10: 4,440,514 km (0.11 R)
• M11: 4,894,244 km (0.094 R)
• M12: 5,223,658 km (0.089 R)
• M13: 6,692,710 km (0.108 R)
• M14: 7,483,035 km (0.098 R)
• M15: 11,326,354 km (0.118 R)
• M16: 14,413,904 km (0.105 R)
• M17: 18,663,830 km (0.093 R)
• M18: 19,693,662 km (0.063 R)
• M19: 20,838,535 km (0.047 R)
• M20: 23,512,297 km (0.111 R)
• M21: 26,680,780 km (0.109 R)
• M22: 31,743,771 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881.9

Radius: 4.6

Gravity: 41.68 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 8.14 AU - 10.86 AU

Year: 18617 Days

Day: 21 Hours

Environment

Temp: -235 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 53,647,943 km

• M1: 59,989 km (0.054 R)
• M2: 374,144 km (0.059 R)
• M3: 1,289,384 km (0.116 R)
• M4: 1,661,733 km (0.109 R)
• M5: 2,102,299 km (0.109 R)
• M6: 2,714,603 km (0.062 R)
• M7: 3,705,838 km (0.068 R)
• M8: 4,215,668 km (0.079 R)
• M9: 4,917,132 km (0.051 R)
• M10: 5,334,660 km (0.066 R)
• M11: 5,492,187 km (0.092 R)
• M12: 7,053,091 km (0.062 R)
• M13: 8,088,607 km (0.09 R)
• M14: 9,563,792 km (0.091 R)
• M15: 9,737,924 km (0.109 R)
• M16: 10,395,107 km (0.076 R)
• M17: 15,683,093 km (0.12 R)
• M18: 16,170,632 km (0.114 R)
• M19: 26,989,401 km (0.085 R)
• M20: 28,881,515 km (0.108 R)
• M21: 29,368,007 km (0.07 R)
• M22: 30,986,805 km (0.043 R)
• M23: 31,368,579 km (0.073 R)
• M24: 48,999,885 km (0.077 R)
• M25: 49,172,222 km (0.11 R)
• M26: 49,518,092 km (0.054 R)
• M27: 51,984,811 km (0.089 R)
• M28: 66,183,744 km (0.065 R)
• M29: 74,276,839 km (0.093 R)
• M30: 78,442,092 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.9

Radius: 4.2

Gravity: 15.41 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.73 AU - 11.39 AU

Year: 18794 Days

Day: 20.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,647,943 km

• M1: 79,736 km (0.102 R)
• M2: 222,452 km (0.086 R)
• M3: 386,112 km (0.088 R)
• M4: 562,937 km (0.099 R)
• M5: 765,642 km (0.074 R)
• M6: 1,543,102 km (0.116 R)
• M7: 1,711,549 km (0.092 R)
• M8: 2,330,436 km (0.077 R)
• M9: 2,573,682 km (0.047 R)
• M10: 2,833,533 km (0.1 R)
• M11: 4,743,449 km (0.11 R)
• M12: 5,441,024 km (0.093 R)
• M13: 6,995,795 km (0.114 R)
• M14: 8,167,595 km (0.074 R)
• M15: 11,059,621 km (0.057 R)
• M16: 14,568,140 km (0.113 R)
• M17: 16,027,916 km (0.098 R)
• M18: 18,200,227 km (0.102 R)
• M19: 20,901,814 km (0.093 R)
• M20: 21,246,488 km (0.041 R)
• M21: 35,957,195 km (0.052 R)
• M22: 36,825,760 km (0.043 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: 317 - 20,030 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit