🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.6

Radius: 9.9

Gravity: 8.59 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.74 AU - 1.02 AU

Year: 525 Days

Day: 6.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,028,340 km

• M1: 123,119 km (0.076 R)
• M2: 450,439 km (0.116 R)
• M3: 820,694 km (0.094 R)
• M4: 1,392,158 km (0.097 R)
• M5: 1,728,753 km (0.077 R)
• M6: 2,212,702 km (0.11 R)
• M7: 2,763,372 km (0.1 R)
• M8: 3,704,342 km (0.078 R)
• M9: 4,271,019 km (0.061 R)
• M10: 4,993,128 km (0.107 R)
• M11: 5,366,375 km (0.103 R)
• M12: 6,842,158 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.5

Radius: 14.7

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.8 AU - 1 AU

Year: 543 Days

Day: 12.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,028,340 km

• M1: 184,155 km (0.117 R)
• M2: 652,247 km (0.093 R)
• M3: 1,303,147 km (0.095 R)
• M4: 1,778,120 km (0.025 R)
• M5: 2,407,329 km (0.067 R)
• M6: 2,924,788 km (0.115 R)
• M7: 3,711,074 km (0.111 R)
• M8: 4,202,055 km (0.075 R)
• M9: 4,840,090 km (0.063 R)
• M10: 5,412,601 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 432

Radius: 8.2

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.93 AU - 0.97 AU

Year: 589 Days

Day: 15 Hours

Environment

Temp: -148 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,028,340 km

• M1: 102,026 km (0.091 R)
• M2: 385,065 km (0.088 R)
• M3: 876,045 km (0.099 R)
• M4: 1,358,648 km (0.113 R)
• M5: 1,713,494 km (0.11 R)
• M6: 2,291,989 km (0.086 R)
• M7: 3,305,814 km (0.079 R)
• M8: 4,773,967 km (0.115 R)
• M9: 5,755,778 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554

Radius: 11.7

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.88 AU - 1.4 AU

Year: 774 Days

Day: 5.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,028,340 km

• M1: 146,008 km (0.072 R)
• M2: 526,435 km (0.113 R)
• M3: 1,004,550 km (0.103 R)
• M4: 1,536,819 km (0.116 R)
• M5: 1,962,275 km (0.075 R)
• M6: 2,435,304 km (0.111 R)
• M7: 2,807,802 km (0.068 R)
• M8: 3,346,953 km (0.116 R)
• M9: 3,725,286 km (0.076 R)
• M10: 4,441,262 km (0.061 R)
• M11: 4,951,091 km (0.098 R)
• M12: 5,591,819 km (0.119 R)
• M13: 6,388,128 km (0.12 R)
• M14: 7,550,504 km (0.057 R)
• M15: 8,086,363 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.3

Radius: 8.1

Gravity: 12.35 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.98 AU - 1.44 AU

Year: 846 Days

Day: 10.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,028,340 km

• M1: 100,829 km (0.102 R)
• M2: 417,677 km (0.098 R)
• M3: 705,803 km (0.062 R)
• M4: 1,692,251 km (0.053 R)
• M5: 2,405,534 km (0.092 R)
• M6: 3,475,009 km (0.119 R)
• M7: 4,279,247 km (0.088 R)
• M8: 4,707,695 km (0.083 R)
• M9: 6,668,624 km (0.086 R)
• M10: 7,557,834 km (0.092 R)
• M11: 8,981,707 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.1

Radius: 8.8

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.57 AU - 3.83 AU

Year: 3640 Days

Day: 11.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,028,340 km

• M1: 109,805 km (0.115 R)
• M2: 738,116 km (0.101 R)
• M3: 1,812,827 km (0.086 R)
• M4: 3,071,543 km (0.096 R)
• M5: 4,263,091 km (0.103 R)
• M6: 4,728,789 km (0.088 R)
• M7: 6,179,439 km (0.081 R)
• M8: 6,538,474 km (0.118 R)
• M9: 7,354,680 km (0.036 R)
• M10: 7,817,087 km (0.102 R)
• M11: 9,189,049 km (0.099 R)
• M12: 13,016,361 km (0.119 R)
• M13: 13,351,909 km (0.069 R)
• M14: 14,349,129 km (0.069 R)
• M15: 15,394,967 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.8

Radius: 12.1

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.14 AU - 6.44 AU

Year: 8858 Days

Day: 12.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 50,028,340 km

• M1: 150,495 km (0.09 R)
• M2: 661,821 km (0.062 R)
• M3: 1,222,364 km (0.098 R)
• M4: 1,678,488 km (0.068 R)
• M5: 2,090,331 km (0.114 R)
• M6: 2,795,087 km (0.062 R)
• M7: 3,262,131 km (0.045 R)
• M8: 4,157,325 km (0.115 R)
• M9: 4,769,031 km (0.08 R)
• M10: 6,931,468 km (0.101 R)
• M11: 8,140,219 km (0.107 R)
• M12: 8,542,637 km (0.105 R)
• M13: 13,394,545 km (0.054 R)
• M14: 14,599,855 km (0.098 R)
• M15: 17,741,111 km (0.109 R)
• M16: 19,037,077 km (0.083 R)
• M17: 20,069,901 km (0.089 R)
• M18: 21,056,050 km (0.114 R)
• M19: 24,026,016 km (0.104 R)
• M20: 26,380,537 km (0.083 R)
• M21: 28,269,958 km (0.11 R)
• M22: 32,316,730 km (0.093 R)
• M23: 34,246,244 km (0.111 R)
• M24: 36,131,327 km (0.118 R)
• M25: 36,734,356 km (0.076 R)
• M26: 43,274,326 km (0.086 R)
• M27: 47,606,830 km (0.084 R)
• M28: 49,506,872 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 263.9

Radius: 4.2

Gravity: 14.96 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 5.42 AU - 8.6 AU

Year: 11801 Days

Day: 16.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,028,340 km

• M1: 54,603 km (0.086 R)
• M2: 689,646 km (0.12 R)
• M3: 971,788 km (0.039 R)
• M4: 1,399,787 km (0.037 R)
• M5: 1,621,791 km (0.076 R)
• M6: 2,486,017 km (0.037 R)
• M7: 2,636,064 km (0.071 R)
• M8: 2,812,290 km (0.117 R)
• M9: 6,956,451 km (0.075 R)
• M10: 7,142,401 km (0.085 R)
• M11: 7,602,115 km (0.115 R)
• M12: 7,959,804 km (0.111 R)
• M13: 9,548,383 km (0.094 R)
• M14: 11,234,800 km (0.101 R)
• M15: 13,681,623 km (0.079 R)
• M16: 15,245,818 km (0.08 R)
• M17: 15,813,841 km (0.114 R)
• M18: 17,534,366 km (0.097 R)
• M19: 17,948,304 km (0.078 R)
• M20: 24,878,724 km (0.106 R)
• M21: 38,715,480 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 191.5

Radius: 5.3

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 8.98 AU - 11.06 AU

Year: 20167 Days

Day: 18 Hours

Environment

Temp: -234 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,028,340 km

• M1: 66,721 km (0.109 R)
• M2: 248,332 km (0.072 R)
• M3: 1,186,311 km (0.106 R)
• M4: 5,319,700 km (0.115 R)
• M5: 5,522,555 km (0.087 R)
• M6: 9,077,300 km (0.077 R)
• M7: 12,738,259 km (0.072 R)
• M8: 14,234,985 km (0.114 R)
• M9: 17,498,463 km (0.071 R)
• M10: 18,175,692 km (0.08 R)
• M11: 25,935,484 km (0.072 R)
• M12: 39,352,917 km (0.045 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: 154 - 16,138 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit