🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.45 AU - 0.57 AU

Year: 239 Days

Day: 27.4 Hours

Environment

Temp: -117 °C

Axial Tilt: 44.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.5

Radius: 10.2

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.71 AU - 0.97 AU

Year: 505 Days

Day: 11.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,828,483 km

• M1: 126,859 km (0.093 R)
• M2: 502,499 km (0.094 R)
• M3: 908,358 km (0.057 R)
• M4: 1,264,401 km (0.078 R)
• M5: 1,691,653 km (0.039 R)
• M6: 2,468,365 km (0.097 R)
• M7: 2,819,621 km (0.094 R)
• M8: 3,228,621 km (0.104 R)
• M9: 4,315,001 km (0.107 R)
• M10: 5,058,054 km (0.054 R)
• M11: 5,737,527 km (0.077 R)
• M12: 6,339,509 km (0.117 R)
• M13: 6,757,037 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 669.7

Radius: 13.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.93 AU - 1.39 AU

Year: 820 Days

Day: 7.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 59,828,483 km

• M1: 162,912 km (0.071 R)
• M2: 587,920 km (0.108 R)
• M3: 1,149,809 km (0.057 R)
• M4: 1,581,698 km (0.087 R)
• M5: 2,527,905 km (0.095 R)
• M6: 3,224,881 km (0.112 R)
• M7: 3,763,284 km (0.049 R)
• M8: 4,233,769 km (0.105 R)
• M9: 4,760,503 km (0.113 R)
• M10: 5,926,619 km (0.064 R)
• M11: 6,460,234 km (0.119 R)
• M12: 7,115,623 km (0.101 R)
• M13: 7,791,057 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.5

Radius: 13.9

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.38 AU - 1.66 AU

Year: 1229 Days

Day: 8.6 Hours

Environment

Temp: -181 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,828,483 km

• M1: 178,919 km (0.066 R)
• M2: 679,324 km (0.102 R)
• M3: 1,339,948 km (0.079 R)
• M4: 2,694,856 km (0.081 R)
• M5: 3,489,819 km (0.074 R)
• M6: 4,069,212 km (0.111 R)
• M7: 5,000,159 km (0.111 R)
• M8: 5,443,567 km (0.054 R)
• M9: 6,181,085 km (0.073 R)
• M10: 7,309,502 km (0.109 R)
• M11: 8,263,338 km (0.039 R)
• M12: 9,878,995 km (0.11 R)
• M13: 10,386,431 km (0.079 R)
• M14: 10,844,649 km (0.112 R)
• M15: 11,661,752 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211

Radius: 12.6

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.36 AU - 4.54 AU

Year: 5150 Days

Day: 5.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 128 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 59,828,483 km

• M1: 156,779 km (0.08 R)
• M2: 675,883 km (0.072 R)
• M3: 1,517,820 km (0.12 R)
• M4: 2,382,944 km (0.108 R)
• M5: 3,247,171 km (0.089 R)
• M6: 4,660,123 km (0.064 R)
• M7: 5,269,136 km (0.118 R)
• M8: 6,365,090 km (0.049 R)
• M9: 7,482,437 km (0.095 R)
• M10: 10,256,879 km (0.045 R)
• M11: 12,304,126 km (0.106 R)
• M12: 15,355,623 km (0.098 R)
• M13: 17,631,904 km (0.094 R)
• M14: 18,591,126 km (0.088 R)
• M15: 19,644,295 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.3

Radius: 13.1

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.91 AU - 4.39 AU

Year: 5546 Days

Day: 13.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,828,483 km

• M1: 162,912 km (0.029 R)
• M2: 581,487 km (0.112 R)
• M3: 1,390,961 km (0.11 R)
• M4: 1,983,668 km (0.119 R)
• M5: 2,463,877 km (0.078 R)
• M6: 3,002,579 km (0.096 R)
• M7: 3,425,941 km (0.101 R)
• M8: 4,196,968 km (0.116 R)
• M9: 4,755,567 km (0.102 R)
• M10: 5,249,240 km (0.117 R)
• M11: 6,307,944 km (0.089 R)
• M12: 7,947,536 km (0.089 R)
• M13: 9,553,470 km (0.036 R)
• M14: 10,298,018 km (0.113 R)
• M15: 13,452,589 km (0.097 R)
• M16: 14,108,725 km (0.088 R)
• M17: 17,521,501 km (0.103 R)
• M18: 19,870,337 km (0.096 R)
• M19: 20,364,160 km (0.084 R)
• M20: 21,376,489 km (0.075 R)
• M21: 25,267,080 km (0.091 R)
• M22: 26,605,682 km (0.095 R)
• M23: 27,119,700 km (0.061 R)
• M24: 30,717,529 km (0.082 R)
• M25: 31,568,741 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 433.2

Radius: 14.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.74 AU - 5.7 AU

Year: 6727 Days

Day: 5.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,828,483 km

• M1: 183,856 km (0.088 R)
• M2: 643,420 km (0.119 R)
• M3: 1,249,741 km (0.095 R)
• M4: 1,904,830 km (0.106 R)
• M5: 2,442,484 km (0.1 R)
• M6: 3,590,050 km (0.09 R)
• M7: 4,396,831 km (0.105 R)
• M8: 4,883,622 km (0.112 R)
• M9: 5,406,766 km (0.097 R)
• M10: 5,936,642 km (0.066 R)
• M11: 6,598,912 km (0.107 R)
• M12: 7,702,794 km (0.071 R)
• M13: 9,375,747 km (0.038 R)
• M14: 12,348,855 km (0.103 R)
• M15: 14,186,815 km (0.078 R)
• M16: 16,871,947 km (0.096 R)
• M17: 17,497,715 km (0.05 R)
• M18: 19,063,107 km (0.117 R)
• M19: 19,811,096 km (0.047 R)
• M20: 20,791,262 km (0.068 R)
• M21: 22,696,989 km (0.077 R)
• M22: 26,017,762 km (0.092 R)
• M23: 27,449,713 km (0.064 R)
• M24: 28,491,662 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.3

Radius: 7.5

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.57 AU - 10.35 AU

Year: 17594 Days

Day: 15.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,828,483 km

• M1: 93,349 km (0.098 R)
• M2: 413,489 km (0.113 R)
• M3: 939,923 km (0.099 R)
• M4: 3,193,167 km (0.064 R)
• M5: 3,528,864 km (0.12 R)
• M6: 4,240,501 km (0.094 R)
• M7: 4,776,660 km (0.052 R)
• M8: 5,945,618 km (0.093 R)
• M9: 7,560,228 km (0.102 R)
• M10: 10,250,147 km (0.097 R)
• M11: 11,508,863 km (0.101 R)
• M12: 16,422,405 km (0.044 R)
• M13: 19,631,579 km (0.062 R)
• M14: 20,758,500 km (0.064 R)
• M15: 34,870,067 km (0.094 R)
• M16: 43,206,259 km (0.115 R)
• M17: 44,077,217 km (0.057 R)
• M18: 46,608,413 km (0.086 R)
• M19: 51,795,420 km (0.065 R)
• M20: 52,943,135 km (0.111 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 558 - 17,286 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit