🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.51 AU - 0.77 AU

Year: 336 Days

Day: 32.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 313.9

Radius: 14.4

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.55 AU - 0.85 AU

Year: 384 Days

Day: 14 Hours

Environment

Temp: -138 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 46,048,137 km

• M1: 179,069 km (0.068 R)
• M2: 909,555 km (0.099 R)
• M3: 1,379,891 km (0.053 R)
• M4: 2,195,648 km (0.109 R)
• M5: 2,841,013 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79

Radius: 12.4

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.67 AU - 0.74 AU

Year: 384 Days

Day: 6 Hours

Environment

Temp: -129 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 46,048,137 km

• M1: 154,535 km (0.107 R)
• M2: 692,040 km (0.072 R)
• M3: 1,159,982 km (0.028 R)
• M4: 1,584,989 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259

Radius: 10.8

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.75 AU - 0.95 AU

Year: 514 Days

Day: 6.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,048,137 km

• M1: 134,339 km (0.094 R)
• M2: 584,778 km (0.104 R)
• M3: 1,233,734 km (0.096 R)
• M4: 1,624,932 km (0.101 R)
• M5: 2,044,853 km (0.084 R)
• M6: 2,448,319 km (0.095 R)
• M7: 3,319,278 km (0.027 R)
• M8: 3,725,885 km (0.078 R)
• M9: 4,612,850 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804

Radius: 9

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.78 AU - 1.1 AU

Year: 598 Days

Day: 14.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,048,137 km

• M1: 111,899 km (0.109 R)
• M2: 398,379 km (0.104 R)
• M3: 806,183 km (0.108 R)
• M4: 1,345,184 km (0.081 R)
• M5: 1,716,785 km (0.039 R)
• M6: 2,146,879 km (0.069 R)
• M7: 2,582,209 km (0.031 R)
• M8: 3,100,266 km (0.101 R)
• M9: 3,416,965 km (0.088 R)
• M10: 3,699,705 km (0.049 R)
• M11: 5,703,120 km (0.103 R)
• M12: 6,006,055 km (0.112 R)
• M13: 6,339,509 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.1

Radius: 9.6

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.28 AU - 3.56 AU

Year: 3273 Days

Day: 12.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,048,137 km

• M1: 119,828 km (0.055 R)
• M2: 582,385 km (0.063 R)
• M3: 1,046,437 km (0.065 R)
• M4: 1,719,328 km (0.113 R)
• M5: 2,049,790 km (0.031 R)
• M6: 2,398,951 km (0.102 R)
• M7: 2,963,235 km (0.099 R)
• M8: 3,442,845 km (0.106 R)
• M9: 4,392,792 km (0.111 R)
• M10: 4,745,693 km (0.1 R)
• M11: 5,157,686 km (0.096 R)
• M12: 6,304,802 km (0.114 R)
• M13: 6,658,302 km (0.114 R)
• M14: 7,587,604 km (0.107 R)
• M15: 9,244,849 km (0.076 R)
• M16: 11,233,005 km (0.047 R)

Asteroid Belt

Center: 5.89 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.6

Radius: 4.5

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.05 AU - 9.65 AU

Year: 17271 Days

Day: 23.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 46,048,137 km

• M1: 55,950 km (0.069 R)
• M2: 223,948 km (0.089 R)
• M3: 386,561 km (0.09 R)
• M4: 699,669 km (0.043 R)
• M5: 845,826 km (0.105 R)
• M6: 1,120,638 km (0.076 R)
• M7: 1,847,683 km (0.037 R)
• M8: 2,061,907 km (0.086 R)
• M9: 3,133,926 km (0.038 R)
• M10: 4,303,183 km (0.057 R)
• M11: 4,710,089 km (0.111 R)
• M12: 4,953,933 km (0.102 R)
• M13: 5,174,142 km (0.039 R)
• M14: 5,770,588 km (0.09 R)
• M15: 7,138,362 km (0.082 R)
• M16: 7,876,029 km (0.119 R)
• M17: 8,089,804 km (0.068 R)
• M18: 8,483,994 km (0.114 R)
• M19: 10,140,043 km (0.05 R)
• M20: 14,137,896 km (0.1 R)
• M21: 16,171,679 km (0.099 R)
• M22: 17,222,455 km (0.047 R)
• M23: 18,021,307 km (0.069 R)
• M24: 18,693,152 km (0.096 R)
• M25: 19,150,173 km (0.098 R)
• M26: 21,381,874 km (0.093 R)
• M27: 22,049,978 km (0.05 R)
• M28: 22,818,163 km (0.074 R)
• M29: 23,339,961 km (0.086 R)
• M30: 27,413,211 km (0.091 R)
• M31: 28,201,293 km (0.084 R)
• M32: 28,601,019 km (0.048 R)
• M33: 30,867,127 km (0.075 R)
• M34: 41,902,064 km (0.095 R)
• M35: 42,422,515 km (0.118 R)
• M36: 44,412,167 km (0.11 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 250 - 15,505 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit