🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.52 AU - 0.7 AU

Year: 308 Days

Day: 42.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,181,926 km

• M1: 20,196 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.3

Radius: 14.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.72 AU - 0.78 AU

Year: 419 Days

Day: 7.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,181,926 km

• M1: 185,950 km (0.112 R)
• M2: 689,945 km (0.095 R)
• M3: 1,185,563 km (0.083 R)
• M4: 1,662,032 km (0.048 R)
• M5: 2,191,160 km (0.026 R)
• M6: 2,668,377 km (0.1 R)
• M7: 3,144,697 km (0.119 R)
• M8: 3,780,637 km (0.083 R)
• M9: 4,310,214 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.1

Radius: 12

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.17 AU - 2.31 AU

Year: 2165 Days

Day: 9.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,181,926 km

• M1: 149,299 km (0.118 R)
• M2: 634,744 km (0.11 R)
• M3: 1,169,706 km (0.044 R)
• M4: 2,010,895 km (0.088 R)
• M5: 2,644,591 km (0.111 R)
• M6: 3,304,767 km (0.09 R)
• M7: 3,748,175 km (0.093 R)
• M8: 5,045,637 km (0.107 R)
• M9: 6,788,153 km (0.084 R)
• M10: 7,538,985 km (0.087 R)
• M11: 8,735,169 km (0.059 R)
• M12: 10,200,181 km (0.08 R)
• M13: 10,875,915 km (0.117 R)
• M14: 11,382,304 km (0.04 R)
• M15: 12,526,578 km (0.084 R)
• M16: 13,433,889 km (0.092 R)
• M17: 14,711,305 km (0.03 R)
• M18: 15,819,975 km (0.065 R)
• M19: 18,094,760 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.1

Radius: 12.6

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.17 AU - 6.17 AU

Year: 8717 Days

Day: 9.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,181,926 km

• M1: 189,241 km (0.069 R)
• M2: 792,121 km (0.072 R)
• M3: 1,621,641 km (0.118 R)
• M4: 2,425,281 km (0.049 R)
• M5: 3,004,823 km (0.084 R)
• M6: 4,089,707 km (0.1 R)
• M7: 4,842,483 km (0.083 R)
• M8: 5,739,622 km (0.103 R)
• M9: 11,306,757 km (0.108 R)
• M10: 12,189,982 km (0.05 R)
• M11: 14,044,398 km (0.082 R)
• M12: 21,251,724 km (0.106 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 450.2

Radius: 6.9

Gravity: 9.46 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 6.11 AU - 10.19 AU

Year: 15023 Days

Day: 19.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,181,926 km

• M1: 86,617 km (0.031 R)
• M2: 414,835 km (0.059 R)
• M3: 635,791 km (0.035 R)
• M4: 888,462 km (0.114 R)
• M5: 1,389,615 km (0.065 R)
• M6: 2,119,353 km (0.071 R)
• M7: 2,385,936 km (0.097 R)
• M8: 3,010,358 km (0.096 R)
• M9: 4,364,967 km (0.113 R)
• M10: 7,283,172 km (0.111 R)
• M11: 11,068,746 km (0.09 R)
• M12: 13,733,085 km (0.075 R)
• M13: 15,705,832 km (0.087 R)
• M14: 17,322,985 km (0.073 R)
• M15: 19,373,523 km (0.103 R)
• M16: 20,035,792 km (0.115 R)
• M17: 21,757,215 km (0.064 R)
• M18: 22,563,099 km (0.083 R)
• M19: 24,234,257 km (0.097 R)
• M20: 28,135,021 km (0.107 R)
• M21: 31,746,613 km (0.068 R)
• M22: 33,722,502 km (0.107 R)
• M23: 34,079,442 km (0.102 R)
• M24: 37,789,170 km (0.09 R)
• M25: 50,207,140 km (0.055 R)
• M26: 54,174,924 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429.3

Radius: 3.6

Gravity: 33.13 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 7.49 AU - 9.53 AU

Year: 16029 Days

Day: 16.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 169.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,181,926 km

• M1: 44,730 km (0.119 R)
• M2: 162,463 km (0.094 R)
• M3: 279,000 km (0.1 R)
• M4: 610,509 km (0.09 R)
• M5: 850,314 km (0.118 R)
• M6: 1,971,850 km (0.115 R)
• M7: 2,231,701 km (0.065 R)
• M8: 2,431,115 km (0.11 R)
• M9: 2,556,328 km (0.04 R)
• M10: 3,100,865 km (0.09 R)
• M11: 4,508,132 km (0.03 R)
• M12: 6,771,248 km (0.116 R)
• M13: 7,274,496 km (0.1 R)
• M14: 8,497,309 km (0.111 R)
• M15: 8,737,862 km (0.069 R)
• M16: 9,589,822 km (0.12 R)
• M17: 9,745,703 km (0.09 R)
• M18: 10,116,107 km (0.068 R)
• M19: 11,225,974 km (0.12 R)
• M20: 11,691,822 km (0.068 R)
• M21: 12,049,510 km (0.107 R)
• M22: 12,724,346 km (0.112 R)
• M23: 16,183,946 km (0.102 R)
• M24: 19,799,129 km (0.036 R)
• M25: 24,300,529 km (0.105 R)
• M26: 25,177,172 km (0.089 R)
• M27: 32,962,245 km (0.117 R)
• M28: 43,758,125 km (0.042 R)
• M29: 51,756,525 km (0.114 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 17,243 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit