🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.9

Radius: 9.3

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.5 AU - 0.76 AU

Year: 339 Days

Day: 9.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,498,787 km

• M1: 115,639 km (0.108 R)
• M2: 449,691 km (0.118 R)
• M3: 792,719 km (0.09 R)
• M4: 1,320,351 km (0.056 R)
• M5: 1,727,556 km (0.111 R)
• M6: 2,142,242 km (0.117 R)
• M7: 3,195,111 km (0.106 R)
• M8: 3,987,232 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.2

Radius: 11.8

Gravity: 6.7 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.51 AU - 0.77 AU

Year: 347 Days

Day: 12.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,498,787 km

• M1: 146,756 km (0.067 R)
• M2: 534,812 km (0.108 R)
• M3: 916,885 km (0.096 R)
• M4: 1,397,244 km (0.041 R)
• M5: 1,948,662 km (0.119 R)
• M6: 2,406,431 km (0.107 R)
• M7: 2,791,347 km (0.099 R)
• M8: 3,377,172 km (0.043 R)
• M9: 4,149,546 km (0.108 R)
• M10: 4,766,487 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 508.1

Radius: 11.4

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.22 AU - 1.76 AU

Year: 1234 Days

Day: 13.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,498,787 km

• M1: 142,118 km (0.028 R)
• M2: 555,158 km (0.109 R)
• M3: 1,015,171 km (0.101 R)
• M4: 1,541,008 km (0.081 R)
• M5: 1,965,566 km (0.1 R)
• M6: 2,433,658 km (0.105 R)
• M7: 3,276,193 km (0.081 R)
• M8: 4,269,374 km (0.078 R)
• M9: 4,873,450 km (0.107 R)
• M10: 5,294,119 km (0.077 R)
• M11: 5,843,442 km (0.107 R)
• M12: 7,225,577 km (0.098 R)
• M13: 7,723,140 km (0.068 R)
• M14: 8,163,855 km (0.079 R)
• M15: 9,210,292 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.5

Radius: 14

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 1.16 AU - 1.86 AU

Year: 1259 Days

Day: 9.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,498,787 km

• M1: 174,431 km (0.084 R)
• M2: 687,402 km (0.067 R)
• M3: 1,408,763 km (0.08 R)
• M4: 1,855,612 km (0.031 R)
• M5: 2,649,977 km (0.063 R)
• M6: 3,461,695 km (0.064 R)
• M7: 3,926,795 km (0.045 R)
• M8: 5,472,141 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.6

Radius: 12.7

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 3.04 AU - 3.86 AU

Year: 4346 Days

Day: 7.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,498,787 km

• M1: 157,975 km (0.059 R)
• M2: 555,906 km (0.041 R)
• M3: 1,370,017 km (0.117 R)
• M4: 2,133,415 km (0.076 R)
• M5: 2,604,499 km (0.069 R)
• M6: 3,203,190 km (0.08 R)
• M7: 4,004,885 km (0.117 R)
• M8: 4,780,250 km (0.09 R)
• M9: 6,189,761 km (0.062 R)
• M10: 11,221,785 km (0.093 R)
• M11: 12,363,815 km (0.106 R)
• M12: 13,898,540 km (0.055 R)
• M13: 15,102,204 km (0.051 R)
• M14: 16,137,721 km (0.103 R)
• M15: 17,779,109 km (0.085 R)
• M16: 20,967,787 km (0.118 R)
• M17: 22,329,277 km (0.057 R)
• M18: 26,192,792 km (0.12 R)
• M19: 29,411,989 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.4

Radius: 13

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.73 AU - 4.29 AU

Year: 4460 Days

Day: 10.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,498,787 km

• M1: 161,715 km (0.099 R)
• M2: 584,778 km (0.118 R)
• M3: 1,406,220 km (0.08 R)
• M4: 1,849,030 km (0.085 R)
• M5: 2,429,170 km (0.083 R)
• M6: 3,009,311 km (0.106 R)
• M7: 4,000,995 km (0.112 R)
• M8: 4,630,204 km (0.092 R)
• M9: 6,509,602 km (0.074 R)
• M10: 7,508,616 km (0.115 R)
• M11: 8,572,407 km (0.079 R)
• M12: 9,323,687 km (0.045 R)
• M13: 10,274,681 km (0.079 R)
• M14: 12,236,358 km (0.091 R)
• M15: 18,070,525 km (0.107 R)
• M16: 20,533,953 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 158.6

Radius: 3.9

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.8 AU - 7.2 AU

Year: 11240 Days

Day: 23.1 Hours

Environment

Temp: -239 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,498,787 km

• M1: 70,161 km (0.101 R)
• M2: 673,789 km (0.059 R)
• M3: 1,079,797 km (0.074 R)
• M4: 1,750,744 km (0.083 R)
• M5: 3,901,812 km (0.034 R)
• M6: 4,886,166 km (0.104 R)
• M7: 5,219,769 km (0.083 R)
• M8: 5,809,035 km (0.065 R)
• M9: 11,133,522 km (0.104 R)
• M10: 12,974,623 km (0.086 R)
• M11: 17,822,941 km (0.09 R)
• M12: 18,279,813 km (0.088 R)
• M13: 22,748,600 km (0.059 R)
• M14: 30,688,358 km (0.071 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 53.6

Radius: 7.5

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.42 AU - 8.34 AU

Year: 13598 Days

Day: 16.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,498,787 km

• M1: 94,247 km (0.102 R)
• M2: 1,859,352 km (0.098 R)
• M3: 2,486,167 km (0.098 R)
• M4: 6,634,516 km (0.035 R)
• M5: 7,138,362 km (0.061 R)
• M6: 14,688,865 km (0.099 R)
• M7: 15,165,933 km (0.093 R)
• M8: 18,799,366 km (0.097 R)
• M9: 25,163,708 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 229.4

Radius: 4.2

Gravity: 13 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 7.97 AU - 9.19 AU

Year: 17046 Days

Day: 24.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,498,787 km

• M1: 56,548 km (0.098 R)
• M2: 242,947 km (0.12 R)
• M3: 543,788 km (0.105 R)
• M4: 1,150,557 km (0.035 R)
• M5: 2,175,003 km (0.062 R)
• M6: 2,397,605 km (0.059 R)
• M7: 2,534,338 km (0.069 R)
• M8: 2,910,277 km (0.117 R)
• M9: 3,567,460 km (0.052 R)
• M10: 4,375,738 km (0.049 R)
• M11: 6,878,809 km (0.112 R)
• M12: 7,236,498 km (0.093 R)
• M13: 7,399,559 km (0.083 R)
• M14: 8,746,838 km (0.115 R)
• M15: 10,300,711 km (0.076 R)
• M16: 10,716,144 km (0.045 R)
• M17: 15,571,194 km (0.119 R)
• M18: 18,968,561 km (0.111 R)
• M19: 20,390,788 km (0.063 R)
• M20: 20,634,483 km (0.059 R)
• M21: 23,982,334 km (0.09 R)
• M22: 25,831,812 km (0.099 R)
• M23: 26,021,802 km (0.067 R)
• M24: 26,404,623 km (0.084 R)
• M25: 30,230,887 km (0.103 R)
• M26: 33,726,541 km (0.113 R)
• M27: 35,571,382 km (0.099 R)
• M28: 41,118,321 km (0.077 R)
• M29: 42,029,971 km (0.079 R)
• M30: 46,089,608 km (0.078 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 303 - 13,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit