🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298

Radius: 15

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.59 AU - 0.77 AU

Year: 387 Days

Day: 12.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,536,958 km

• M1: 202,556 km (0.081 R)
• M2: 688,749 km (0.079 R)
• M3: 1,281,605 km (0.119 R)
• M4: 1,928,915 km (0.077 R)
• M5: 2,522,370 km (0.072 R)
• M6: 3,158,011 km (0.069 R)
• M7: 4,108,406 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.4

Radius: 13.7

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.9 AU - 1 AU

Year: 639 Days

Day: 12.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 53,536,958 km

• M1: 170,392 km (0.103 R)
• M2: 629,059 km (0.115 R)
• M3: 1,608,925 km (0.093 R)
• M4: 2,235,591 km (0.105 R)
• M5: 2,811,692 km (0.089 R)
• M6: 3,465,285 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.5

Radius: 8.2

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.13 AU - 1.63 AU

Year: 1119 Days

Day: 8.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,536,958 km

• M1: 112,946 km (0.103 R)
• M2: 415,284 km (0.094 R)
• M3: 769,681 km (0.1 R)
• M4: 1,876,406 km (0.069 R)
• M5: 2,448,169 km (0.119 R)
• M6: 3,021,129 km (0.046 R)
• M7: 3,490,567 km (0.066 R)
• M8: 4,495,566 km (0.075 R)
• M9: 4,753,921 km (0.093 R)
• M10: 6,198,737 km (0.066 R)
• M11: 6,936,105 km (0.083 R)
• M12: 7,639,514 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.5

Radius: 12.1

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.39 AU - 1.83 AU

Year: 1410 Days

Day: 10.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,536,958 km

• M1: 150,795 km (0.072 R)
• M2: 656,735 km (0.075 R)
• M3: 1,149,809 km (0.111 R)
• M4: 2,388,480 km (0.1 R)
• M5: 3,135,721 km (0.098 R)
• M6: 3,641,063 km (0.071 R)
• M7: 4,698,869 km (0.105 R)
• M8: 5,642,682 km (0.102 R)
• M9: 6,089,980 km (0.032 R)
• M10: 6,624,044 km (0.052 R)
• M11: 8,491,026 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.6

Radius: 8.5

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.55 AU - 2.27 AU

Year: 1822 Days

Day: 12.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,536,958 km

• M1: 105,766 km (0.067 R)
• M2: 456,573 km (0.066 R)
• M3: 1,131,857 km (0.11 R)
• M4: 3,225,330 km (0.117 R)
• M5: 3,937,416 km (0.11 R)
• M6: 4,856,695 km (0.065 R)
• M7: 5,436,087 km (0.087 R)
• M8: 5,863,489 km (0.12 R)
• M9: 6,416,253 km (0.112 R)
• M10: 8,627,908 km (0.108 R)
• M11: 10,744,119 km (0.109 R)
• M12: 12,001,190 km (0.063 R)
• M13: 12,481,698 km (0.063 R)
• M14: 12,975,072 km (0.03 R)
• M15: 15,125,691 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.1

Radius: 8.9

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.26 AU - 2.58 AU

Year: 2599 Days

Day: 13 Hours

Environment

Temp: -207 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,536,958 km

• M1: 110,702 km (0.092 R)
• M2: 397,182 km (0.113 R)
• M3: 704,756 km (0.11 R)
• M4: 990,338 km (0.092 R)
• M5: 1,590,525 km (0.119 R)
• M6: 2,579,965 km (0.111 R)
• M7: 2,962,337 km (0.099 R)
• M8: 4,047,819 km (0.101 R)
• M9: 4,503,943 km (0.089 R)
• M10: 5,542,900 km (0.107 R)
• M11: 6,414,906 km (0.116 R)
• M12: 7,008,062 km (0.115 R)
• M13: 7,375,474 km (0.114 R)
• M14: 7,905,350 km (0.082 R)
• M15: 11,170,922 km (0.069 R)
• M16: 12,973,127 km (0.09 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322

Radius: 12.5

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 3.65 AU - 4.09 AU

Year: 5255 Days

Day: 9.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,536,958 km

• M1: 155,582 km (0.117 R)
• M2: 1,120,039 km (0.072 R)
• M3: 2,140,446 km (0.08 R)
• M4: 3,411,131 km (0.109 R)
• M5: 4,574,553 km (0.111 R)
• M6: 6,071,130 km (0.048 R)
• M7: 7,737,950 km (0.095 R)
• M8: 8,391,393 km (0.082 R)
• M9: 9,044,238 km (0.106 R)
• M10: 12,409,891 km (0.082 R)
• M11: 13,894,201 km (0.118 R)
• M12: 14,860,604 km (0.103 R)
• M13: 15,654,819 km (0.113 R)
• M14: 18,327,684 km (0.107 R)
• M15: 18,811,184 km (0.058 R)
• M16: 20,570,754 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92

Radius: 4.6

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.7 AU - 7.24 AU

Year: 10069 Days

Day: 19.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 179.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,536,958 km

• M1: 57,745 km (0.053 R)
• M2: 585,825 km (0.063 R)
• M3: 957,576 km (0.096 R)
• M4: 1,148,612 km (0.097 R)
• M5: 1,494,184 km (0.079 R)
• M6: 2,530,747 km (0.109 R)
• M7: 3,041,175 km (0.116 R)
• M8: 3,206,930 km (0.086 R)
• M9: 4,400,870 km (0.118 R)
• M10: 4,758,708 km (0.074 R)
• M11: 5,920,635 km (0.116 R)
• M12: 6,208,910 km (0.089 R)
• M13: 8,532,015 km (0.036 R)
• M14: 12,512,366 km (0.073 R)
• M15: 13,871,612 km (0.085 R)
• M16: 16,313,648 km (0.093 R)
• M17: 19,974,009 km (0.071 R)
• M18: 23,712,310 km (0.058 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.2

Radius: 3.8

Gravity: 35.96 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.57 AU - 7.99 AU

Year: 13558 Days

Day: 15.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,536,958 km

• M1: 47,273 km (0.1 R)
• M2: 578,794 km (0.064 R)
• M3: 1,100,143 km (0.077 R)
• M4: 1,579,903 km (0.114 R)
• M5: 1,917,546 km (0.109 R)
• M6: 2,321,011 km (0.095 R)
• M7: 2,778,631 km (0.087 R)
• M8: 3,005,571 km (0.1 R)
• M9: 5,495,029 km (0.087 R)
• M10: 6,854,574 km (0.06 R)
• M11: 7,059,524 km (0.096 R)
• M12: 7,184,587 km (0.109 R)
• M13: 7,481,838 km (0.064 R)
• M14: 7,787,317 km (0.106 R)
• M15: 8,101,173 km (0.114 R)
• M16: 8,849,911 km (0.105 R)
• M17: 9,440,972 km (0.051 R)
• M18: 9,797,613 km (0.1 R)
• M19: 10,057,764 km (0.09 R)
• M20: 10,216,188 km (0.072 R)
• M21: 10,866,191 km (0.084 R)
• M22: 11,088,942 km (0.076 R)
• M23: 14,941,237 km (0.117 R)
• M24: 15,848,548 km (0.114 R)
• M25: 17,542,744 km (0.115 R)
• M26: 26,319,801 km (0.068 R)
• M27: 27,025,304 km (0.078 R)
• M28: 28,054,837 km (0.117 R)
• M29: 37,502,241 km (0.114 R)
• M30: 38,266,537 km (0.062 R)
• M31: 49,016,939 km (0.082 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 15,360 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit