🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.3

Radius: 11.7

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.66 AU - 0.94 AU

Year: 494 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 44,588,930 km

• M1: 146,307 km (0.074 R)
• M2: 614,249 km (0.097 R)
• M3: 1,137,542 km (0.116 R)
• M4: 1,506,899 km (0.082 R)
• M5: 2,574,879 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.1

Radius: 12.2

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.79 AU - 0.91 AU

Year: 541 Days

Day: 13.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 44,588,930 km

• M1: 151,692 km (0.114 R)
• M2: 639,680 km (0.075 R)
• M3: 1,129,614 km (0.117 R)
• M4: 1,559,109 km (0.075 R)
• M5: 2,206,419 km (0.047 R)
• M6: 3,072,890 km (0.072 R)
• M7: 3,508,668 km (0.068 R)
• M8: 5,525,697 km (0.091 R)
• M9: 6,634,366 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 14.5

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.74 AU - 1.02 AU

Year: 570 Days

Day: 8.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,588,930 km

• M1: 180,265 km (0.101 R)
• M2: 643,271 km (0.074 R)
• M3: 1,222,663 km (0.066 R)
• M4: 1,976,786 km (0.12 R)
• M5: 3,413,973 km (0.049 R)
• M6: 4,089,108 km (0.117 R)
• M7: 4,620,929 km (0.114 R)
• M8: 5,497,572 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341

Radius: 13.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.91 AU - 1.45 AU

Year: 885 Days

Day: 9.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,588,930 km

• M1: 172,337 km (0.096 R)
• M2: 694,733 km (0.113 R)
• M3: 1,161,029 km (0.119 R)
• M4: 1,595,012 km (0.046 R)
• M5: 2,041,263 km (0.119 R)
• M6: 2,572,186 km (0.114 R)
• M7: 3,369,243 km (0.077 R)
• M8: 3,806,069 km (0.119 R)
• M9: 4,447,694 km (0.099 R)
• M10: 4,959,020 km (0.051 R)
• M11: 5,617,400 km (0.074 R)
• M12: 7,237,695 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.8

Radius: 9.7

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.08 AU - 1.6 AU

Year: 1071 Days

Day: 14.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 44,588,930 km

• M1: 123,867 km (0.069 R)
• M2: 432,039 km (0.079 R)
• M3: 947,553 km (0.076 R)
• M4: 1,588,879 km (0.114 R)
• M5: 2,024,508 km (0.069 R)
• M6: 2,794,039 km (0.107 R)
• M7: 3,760,741 km (0.104 R)
• M8: 4,167,049 km (0.077 R)
• M9: 4,649,053 km (0.08 R)
• M10: 6,379,751 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.9

Radius: 13.5

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.76 AU - 5.88 AU

Year: 7304 Days

Day: 11.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 44,588,930 km

• M1: 172,636 km (0.097 R)
• M2: 622,028 km (0.068 R)
• M3: 1,259,016 km (0.095 R)
• M4: 1,742,217 km (0.099 R)
• M5: 2,165,429 km (0.068 R)
• M6: 3,425,791 km (0.091 R)
• M7: 3,850,200 km (0.105 R)
• M8: 4,310,064 km (0.045 R)
• M9: 8,983,951 km (0.094 R)
• M10: 9,521,755 km (0.113 R)
• M11: 11,011,301 km (0.115 R)
• M12: 13,270,378 km (0.112 R)
• M13: 13,850,968 km (0.094 R)
• M14: 16,476,560 km (0.116 R)
• M15: 16,944,352 km (0.05 R)
• M16: 20,857,534 km (0.054 R)
• M17: 21,722,808 km (0.083 R)
• M18: 25,336,494 km (0.083 R)
• M19: 28,272,950 km (0.1 R)
• M20: 28,847,855 km (0.105 R)
• M21: 29,823,233 km (0.088 R)
• M22: 30,319,150 km (0.104 R)
• M23: 33,946,150 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.3

Radius: 14.3

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 4.53 AU - 5.59 AU

Year: 7857 Days

Day: 9.7 Hours

Environment

Temp: -231 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,588,930 km

• M1: 183,407 km (0.109 R)
• M2: 718,219 km (0.073 R)
• M3: 1,283,550 km (0.111 R)
• M4: 1,773,782 km (0.096 R)
• M5: 2,355,269 km (0.1 R)
• M6: 2,956,652 km (0.109 R)
• M7: 4,967,547 km (0.119 R)
• M8: 7,170,974 km (0.097 R)
• M9: 8,230,576 km (0.095 R)
• M10: 8,887,909 km (0.104 R)
• M11: 10,110,273 km (0.115 R)
• M12: 10,609,331 km (0.094 R)
• M13: 11,442,143 km (0.119 R)
• M14: 12,543,931 km (0.111 R)
• M15: 14,640,844 km (0.079 R)
• M16: 16,073,094 km (0.068 R)
• M17: 18,689,860 km (0.115 R)
• M18: 19,443,235 km (0.038 R)
• M19: 22,074,213 km (0.048 R)
• M20: 25,024,732 km (0.051 R)
• M21: 34,087,969 km (0.094 R)
• M22: 38,495,721 km (0.106 R)
• M23: 41,977,163 km (0.114 R)
• M24: 44,058,069 km (0.11 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 323 - 20,304 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit