🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.63 AU - 0.79 AU

Year: 216 Days

Day: 16.9 Hours

Environment

Temp: 174 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,389,035 km

• M1: 91,404 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.74 AU - 1.14 AU

Year: 330 Days

Day: 17.3 Hours

Environment

Temp: 147 °C

Axial Tilt: 21.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.3 AU - 1.44 AU

Year: 580 Days

Day: 35.2 Hours

Environment

Temp: -12 °C

Axial Tilt: 12.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 47,389,035 km

• M1: 236,963 km (0.117 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.36

Radius: 0.66

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 2.36 AU - 2.6 AU

Year: 1412 Days

Day: 33.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 50 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,389,035 km

• M1: 492,775 km (0.087 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.86 AU - 3.5 AU

Year: 2051 Days

Day: 24 Hours

Environment

Temp: -97 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,389,035 km

• M1: 22,589 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.2

Radius: 10.3

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.68 AU - 7.6 AU

Year: 5502 Days

Day: 7.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,389,035 km

• M1: 131,945 km (0.098 R)
• M2: 1,352,814 km (0.11 R)
• M3: 2,536,881 km (0.038 R)
• M4: 3,321,970 km (0.041 R)
• M5: 3,682,800 km (0.092 R)
• M6: 4,611,205 km (0.108 R)
• M7: 5,089,170 km (0.106 R)
• M8: 5,454,787 km (0.104 R)
• M9: 6,051,683 km (0.09 R)
• M10: 8,924,261 km (0.054 R)
• M11: 9,839,202 km (0.077 R)
• M12: 10,408,571 km (0.069 R)
• M13: 12,249,373 km (0.106 R)
• M14: 13,644,672 km (0.102 R)
• M15: 15,607,546 km (0.119 R)
• M16: 21,145,509 km (0.12 R)
• M17: 22,316,861 km (0.057 R)
• M18: 28,215,505 km (0.057 R)
• M19: 30,637,046 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.3

Radius: 13.9

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 7.31 AU - 11.83 AU

Year: 10707 Days

Day: 8.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,389,035 km

• M1: 215,421 km (0.093 R)
• M2: 718,668 km (0.114 R)
• M3: 1,399,338 km (0.068 R)
• M4: 2,678,101 km (0.104 R)
• M5: 4,180,213 km (0.071 R)
• M6: 5,422,624 km (0.11 R)
• M7: 9,016,264 km (0.066 R)
• M8: 11,653,973 km (0.089 R)
• M9: 12,493,666 km (0.076 R)
• M10: 13,828,528 km (0.114 R)
• M11: 17,234,423 km (0.055 R)
• M12: 19,460,589 km (0.114 R)
• M13: 20,471,122 km (0.028 R)
• M14: 21,076,694 km (0.1 R)
• M15: 21,962,314 km (0.053 R)
• M16: 25,258,404 km (0.072 R)
• M17: 30,074,558 km (0.075 R)
• M18: 31,999,583 km (0.069 R)
• M19: 38,136,088 km (0.103 R)
• M20: 42,590,065 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 13.3

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 8.73 AU - 10.77 AU

Year: 11010 Days

Day: 11.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,389,035 km

• M1: 165,455 km (0.103 R)
• M2: 916,287 km (0.052 R)
• M3: 1,401,882 km (0.106 R)
• M4: 2,244,716 km (0.026 R)
• M5: 2,681,841 km (0.04 R)
• M6: 3,488,772 km (0.078 R)
• M7: 5,010,781 km (0.107 R)
• M8: 6,399,199 km (0.074 R)
• M9: 7,147,786 km (0.107 R)
• M10: 7,691,275 km (0.043 R)
• M11: 9,108,715 km (0.055 R)
• M12: 11,699,900 km (0.101 R)
• M13: 13,352,657 km (0.08 R)
• M14: 13,899,886 km (0.075 R)
• M15: 19,870,337 km (0.085 R)
• M16: 21,537,755 km (0.111 R)
• M17: 23,062,008 km (0.052 R)
• M18: 29,697,870 km (0.1 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484

Radius: 10.5

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 7.62 AU - 12.68 AU

Year: 11695 Days

Day: 8.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,389,035 km

• M1: 131,048 km (0.109 R)
• M2: 531,820 km (0.025 R)
• M3: 1,020,108 km (0.049 R)
• M4: 1,458,280 km (0.043 R)
• M5: 2,191,758 km (0.102 R)
• M6: 3,020,979 km (0.114 R)
• M7: 3,363,858 km (0.099 R)
• M8: 5,068,525 km (0.12 R)
• M9: 6,109,128 km (0.085 R)
• M10: 6,699,142 km (0.087 R)
• M11: 8,974,975 km (0.12 R)
• M12: 11,723,686 km (0.108 R)
• M13: 15,055,829 km (0.111 R)
• M14: 15,387,039 km (0.105 R)
• M15: 16,902,315 km (0.108 R)
• M16: 17,260,154 km (0.078 R)
• M17: 19,593,132 km (0.061 R)
• M18: 24,417,813 km (0.088 R)
• M19: 27,250,150 km (0.11 R)
• M20: 34,124,621 km (0.068 R)
• M21: 35,743,120 km (0.115 R)
• M22: 36,810,351 km (0.106 R)
• M23: 38,143,268 km (0.113 R)
• M24: 38,883,778 km (0.094 R)
• M25: 42,598,592 km (0.095 R)
• M26: 45,156,716 km (0.064 R)

Kuiper Belt

Range: 30.3 - 46.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 12,907 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit