🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.46 AU - 0.66 AU

Year: 275 Days

Day: 44.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 41.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.2

Radius: 10.9

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.54 AU - 2.4 AU

Year: 1814 Days

Day: 7.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,526,976 km

• M1: 135,536 km (0.091 R)
• M2: 545,883 km (0.102 R)
• M3: 1,015,620 km (0.097 R)
• M4: 1,381,985 km (0.082 R)
• M5: 2,213,450 km (0.055 R)
• M6: 2,934,661 km (0.115 R)
• M7: 4,184,103 km (0.094 R)
• M8: 5,263,900 km (0.098 R)
• M9: 5,759,069 km (0.101 R)
• M10: 6,208,162 km (0.109 R)
• M11: 6,626,737 km (0.106 R)
• M12: 7,906,397 km (0.104 R)
• M13: 8,846,769 km (0.101 R)
• M14: 11,445,135 km (0.087 R)
• M15: 11,836,782 km (0.1 R)
• M16: 12,441,307 km (0.115 R)
• M17: 13,407,859 km (0.108 R)
• M18: 14,288,541 km (0.086 R)
• M19: 14,927,624 km (0.086 R)
• M20: 15,537,983 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.8

Radius: 10.7

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.44 AU - 6.74 AU

Year: 8670 Days

Day: 11.4 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 38,526,976 km

• M1: 138,079 km (0.071 R)
• M2: 557,850 km (0.05 R)
• M3: 1,052,122 km (0.067 R)
• M4: 1,701,077 km (0.065 R)
• M5: 2,417,801 km (0.055 R)
• M6: 2,828,148 km (0.119 R)
• M7: 4,905,464 km (0.117 R)
• M8: 7,139,259 km (0.082 R)
• M9: 7,844,015 km (0.031 R)
• M10: 8,555,951 km (0.096 R)
• M11: 9,107,668 km (0.116 R)
• M12: 9,683,021 km (0.111 R)
• M13: 10,413,957 km (0.076 R)
• M14: 11,227,619 km (0.106 R)
• M15: 12,828,765 km (0.026 R)
• M16: 13,447,203 km (0.108 R)
• M17: 15,080,213 km (0.096 R)
• M18: 16,659,518 km (0.112 R)
• M19: 18,025,795 km (0.093 R)
• M20: 18,670,861 km (0.105 R)
• M21: 19,065,201 km (0.109 R)
• M22: 22,056,710 km (0.112 R)
• M23: 26,901,138 km (0.045 R)
• M24: 28,344,009 km (0.042 R)
• M25: 28,952,873 km (0.099 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 688.5

Radius: 3.5

Gravity: 56.2 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 5.9 AU - 7.88 AU

Year: 11864 Days

Day: 24.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 38,526,976 km

• M1: 43,533 km (0.07 R)
• M2: 367,712 km (0.026 R)
• M3: 486,642 km (0.082 R)
• M4: 714,928 km (0.113 R)
• M5: 863,629 km (0.065 R)
• M6: 2,101,252 km (0.105 R)
• M7: 4,943,013 km (0.086 R)
• M8: 6,446,920 km (0.04 R)
• M9: 6,684,033 km (0.078 R)
• M10: 7,009,259 km (0.08 R)
• M11: 7,175,761 km (0.068 R)
• M12: 8,699,415 km (0.1 R)
• M13: 9,037,806 km (0.119 R)
• M14: 10,265,107 km (0.069 R)
• M15: 10,974,051 km (0.111 R)
• M16: 12,008,969 km (0.037 R)
• M17: 12,247,578 km (0.101 R)
• M18: 12,368,004 km (0.119 R)
• M19: 13,680,725 km (0.108 R)
• M20: 14,337,161 km (0.112 R)
• M21: 16,287,019 km (0.034 R)
• M22: 16,432,728 km (0.081 R)
• M23: 17,783,148 km (0.106 R)
• M24: 24,303,969 km (0.037 R)
• M25: 26,151,952 km (0.043 R)
• M26: 27,366,088 km (0.091 R)
• M27: 39,370,120 km (0.1 R)
• M28: 46,287,376 km (0.113 R)
• M29: 51,740,368 km (0.116 R)
• M30: 52,529,946 km (0.047 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 200.7

Radius: 3.7

Gravity: 14.66 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 5.9 AU - 8.98 AU

Year: 13313 Days

Day: 21.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 38,526,976 km

• M1: 46,076 km (0.064 R)
• M2: 241,750 km (0.052 R)
• M3: 496,067 km (0.111 R)
• M4: 676,631 km (0.06 R)
• M5: 927,507 km (0.096 R)
• M6: 1,074,711 km (0.12 R)
• M7: 1,248,843 km (0.074 R)
• M8: 1,441,525 km (0.06 R)
• M9: 1,667,717 km (0.113 R)
• M10: 2,157,500 km (0.058 R)
• M11: 2,545,857 km (0.074 R)
• M12: 2,737,192 km (0.045 R)
• M13: 3,301,625 km (0.095 R)
• M14: 3,767,174 km (0.1 R)
• M15: 4,196,220 km (0.079 R)
• M16: 4,436,026 km (0.118 R)
• M17: 6,206,965 km (0.051 R)
• M18: 6,448,267 km (0.08 R)
• M19: 6,695,851 km (0.051 R)
• M20: 11,159,552 km (0.085 R)
• M21: 11,413,570 km (0.102 R)
• M22: 12,964,151 km (0.101 R)
• M23: 15,325,404 km (0.03 R)
• M24: 15,957,605 km (0.041 R)
• M25: 27,082,600 km (0.116 R)
• M26: 31,098,405 km (0.077 R)
• M27: 33,985,195 km (0.032 R)
• M28: 35,275,328 km (0.064 R)
• M29: 37,610,849 km (0.047 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 199 - 18,300 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit