🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.6

Radius: 11.2

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.5 AU - 0.62 AU

Year: 284 Days

Day: 8.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,720,104 km

• M1: 139,276 km (0.109 R)
• M2: 502,649 km (0.1 R)
• M3: 1,177,934 km (0.099 R)
• M4: 1,810,433 km (0.056 R)
• M5: 2,185,625 km (0.025 R)
• M6: 2,551,392 km (0.099 R)
• M7: 2,948,574 km (0.083 R)
• M8: 3,572,248 km (0.03 R)
• M9: 4,219,558 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.2

Radius: 12

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 1.09 AU - 1.23 AU

Year: 847 Days

Day: 11.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,720,104 km

• M1: 149,299 km (0.076 R)
• M2: 528,679 km (0.095 R)
• M3: 1,111,213 km (0.07 R)
• M4: 1,676,843 km (0.102 R)
• M5: 2,187,121 km (0.06 R)
• M6: 2,562,761 km (0.079 R)
• M7: 3,345,308 km (0.108 R)
• M8: 3,918,267 km (0.074 R)
• M9: 4,341,031 km (0.089 R)
• M10: 5,741,267 km (0.111 R)
• M11: 6,308,243 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970

Radius: 8.5

Gravity: 13.43 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.12 AU - 1.48 AU

Year: 1005 Days

Day: 11.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,720,104 km

• M1: 105,915 km (0.114 R)
• M2: 473,028 km (0.101 R)
• M3: 827,276 km (0.114 R)
• M4: 1,156,541 km (0.119 R)
• M5: 2,163,634 km (0.117 R)
• M6: 2,498,284 km (0.074 R)
• M7: 3,003,028 km (0.072 R)
• M8: 3,346,355 km (0.079 R)
• M9: 3,796,046 km (0.074 R)
• M10: 4,078,188 km (0.109 R)
• M11: 4,797,753 km (0.051 R)
• M12: 5,987,954 km (0.104 R)
• M13: 6,417,599 km (0.087 R)
• M14: 6,723,377 km (0.081 R)
• M15: 7,389,536 km (0.083 R)
• M16: 7,752,012 km (0.064 R)
• M17: 8,853,202 km (0.066 R)
• M18: 9,592,515 km (0.091 R)
• M19: 10,118,351 km (0.12 R)
• M20: 10,695,799 km (0.107 R)
• M21: 11,465,480 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.2

Radius: 10.1

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.17 AU - 1.89 AU

Year: 1284 Days

Day: 9.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,720,104 km

• M1: 126,261 km (0.089 R)
• M2: 496,665 km (0.095 R)
• M3: 867,668 km (0.075 R)
• M4: 1,343,688 km (0.109 R)
• M5: 1,732,343 km (0.097 R)
• M6: 2,080,308 km (0.054 R)
• M7: 2,394,613 km (0.11 R)
• M8: 2,933,315 km (0.078 R)
• M9: 3,316,884 km (0.087 R)
• M10: 3,672,329 km (0.079 R)
• M11: 4,637,983 km (0.099 R)
• M12: 5,160,977 km (0.088 R)
• M13: 5,599,149 km (0.107 R)
• M14: 6,170,763 km (0.075 R)
• M15: 6,757,635 km (0.061 R)
• M16: 7,282,873 km (0.059 R)
• M17: 8,605,468 km (0.1 R)
• M18: 9,990,595 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.7

Radius: 14.4

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.2 AU - 3.22 AU

Year: 3901 Days

Day: 10 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,720,104 km

• M1: 188,942 km (0.095 R)
• M2: 724,054 km (0.11 R)
• M3: 1,412,802 km (0.092 R)
• M4: 1,913,058 km (0.045 R)
• M5: 2,532,991 km (0.109 R)
• M6: 4,138,475 km (0.112 R)
• M7: 5,152,300 km (0.113 R)
• M8: 6,486,713 km (0.095 R)
• M9: 7,224,380 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.8

Radius: 12.2

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.83 AU - 3.81 AU

Year: 4103 Days

Day: 13.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,720,104 km

• M1: 175,478 km (0.1 R)
• M2: 947,553 km (0.101 R)
• M3: 2,348,986 km (0.106 R)
• M4: 3,252,108 km (0.103 R)
• M5: 4,619,582 km (0.105 R)
• M6: 7,693,370 km (0.094 R)
• M7: 8,479,357 km (0.117 R)
• M8: 9,260,407 km (0.047 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.9

Radius: 7

Gravity: 13.06 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.92 AU - 8.92 AU

Year: 15117 Days

Day: 22.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 113.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 61,720,104 km

• M1: 87,066 km (0.108 R)
• M2: 358,885 km (0.119 R)
• M3: 617,989 km (0.091 R)
• M4: 1,513,781 km (0.119 R)
• M5: 1,923,230 km (0.112 R)
• M6: 2,574,131 km (0.077 R)
• M7: 2,867,791 km (0.106 R)
• M8: 3,337,229 km (0.057 R)
• M9: 3,687,139 km (0.117 R)
• M10: 4,785,037 km (0.1 R)
• M11: 5,740,818 km (0.103 R)
• M12: 6,526,955 km (0.103 R)
• M13: 7,977,606 km (0.094 R)
• M14: 11,742,984 km (0.086 R)
• M15: 15,793,646 km (0.099 R)
• M16: 16,625,410 km (0.094 R)
• M17: 18,707,064 km (0.095 R)
• M18: 20,599,328 km (0.117 R)
• M19: 25,674,735 km (0.115 R)
• M20: 27,571,935 km (0.067 R)
• M21: 29,222,747 km (0.12 R)
• M22: 34,443,863 km (0.06 R)
• M23: 36,097,817 km (0.04 R)
• M24: 37,937,422 km (0.104 R)
• M25: 38,880,337 km (0.091 R)
• M26: 39,976,889 km (0.077 R)
• M27: 44,867,992 km (0.113 R)
• M28: 48,393,714 km (0.049 R)
• M29: 51,278,410 km (0.105 R)
• M30: 52,430,613 km (0.046 R)
• M31: 58,987,936 km (0.088 R)
• M32: 61,350,984 km (0.072 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: 178 - 14,140 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit