🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.4

Radius: 9

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.54 AU - 0.66 AU

Year: 315 Days

Day: 12.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,933,131 km

• M1: 112,049 km (0.081 R)
• M2: 461,061 km (0.117 R)
• M3: 750,084 km (0.113 R)
• M4: 1,622,389 km (0.084 R)
• M5: 1,915,601 km (0.077 R)
• M6: 2,244,417 km (0.037 R)
• M7: 2,629,931 km (0.059 R)
• M8: 3,112,234 km (0.096 R)
• M9: 3,640,614 km (0.101 R)
• M10: 3,970,477 km (0.107 R)
• M11: 4,761,401 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.6

Radius: 10.1

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.47 AU - 0.77 AU

Year: 331 Days

Day: 6.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 26,933,131 km

• M1: 125,662 km (0.113 R)
• M2: 456,423 km (0.061 R)
• M3: 840,590 km (0.089 R)
• M4: 1,360,144 km (0.05 R)
• M5: 2,547,652 km (0.12 R)
• M6: 2,912,521 km (0.114 R)
• M7: 3,794,700 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.9

Radius: 13

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.79 AU - 1.05 AU

Year: 599 Days

Day: 8.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 26,933,131 km

• M1: 161,715 km (0.097 R)
• M2: 746,643 km (0.064 R)
• M3: 1,418,637 km (0.085 R)
• M4: 1,833,322 km (0.065 R)
• M5: 2,284,509 km (0.058 R)
• M6: 3,665,746 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.7

Radius: 8.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.12 AU - 1.58 AU

Year: 1064 Days

Day: 7.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 26,933,131 km

• M1: 115,639 km (0.056 R)
• M2: 436,975 km (0.12 R)
• M3: 741,856 km (0.036 R)
• M4: 1,039,256 km (0.104 R)
• M5: 2,194,152 km (0.049 R)
• M6: 3,056,434 km (0.032 R)
• M7: 3,422,051 km (0.078 R)
• M8: 3,963,745 km (0.095 R)
• M9: 6,190,061 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.7

Radius: 11

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.37 AU - 1.49 AU

Year: 1160 Days

Day: 5.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 26,933,131 km

• M1: 137,630 km (0.08 R)
• M2: 479,760 km (0.12 R)
• M3: 825,331 km (0.052 R)
• M4: 1,650,364 km (0.103 R)
• M5: 2,547,053 km (0.076 R)
• M6: 2,982,383 km (0.116 R)
• M7: 3,947,888 km (0.074 R)
• M8: 4,307,671 km (0.098 R)
• M9: 4,689,444 km (0.081 R)
• M10: 5,433,993 km (0.099 R)
• M11: 6,468,462 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 781.6

Radius: 14.4

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.55 AU - 1.91 AU

Year: 1543 Days

Day: 11.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 26,933,131 km

• M1: 181,911 km (0.108 R)
• M2: 636,689 km (0.117 R)
• M3: 1,131,558 km (0.108 R)
• M4: 1,647,372 km (0.107 R)
• M5: 2,215,096 km (0.1 R)
• M6: 2,705,328 km (0.065 R)
• M7: 3,330,797 km (0.092 R)
• M8: 4,051,709 km (0.093 R)
• M9: 4,915,786 km (0.055 R)
• M10: 5,381,335 km (0.102 R)
• M11: 5,899,691 km (0.115 R)
• M12: 6,985,173 km (0.1 R)
• M13: 7,465,981 km (0.118 R)
• M14: 8,228,930 km (0.115 R)
• M15: 8,888,657 km (0.111 R)
• M16: 9,486,599 km (0.081 R)
• M17: 10,111,320 km (0.034 R)
• M18: 10,904,189 km (0.071 R)
• M19: 11,553,144 km (0.082 R)
• M20: 12,151,685 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.9

Radius: 13.4

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 3.12 AU - 3.34 AU

Year: 3937 Days

Day: 6.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 26,933,131 km

• M1: 171,589 km (0.106 R)
• M2: 610,509 km (0.068 R)
• M3: 1,200,224 km (0.082 R)
• M4: 1,854,116 km (0.081 R)
• M5: 2,294,831 km (0.065 R)
• M6: 4,475,819 km (0.113 R)
• M7: 5,552,923 km (0.033 R)
• M8: 6,094,019 km (0.118 R)
• M9: 6,795,932 km (0.098 R)
• M10: 8,398,574 km (0.096 R)
• M11: 8,921,568 km (0.118 R)
• M12: 9,868,672 km (0.06 R)
• M13: 12,244,137 km (0.053 R)
• M14: 12,722,701 km (0.071 R)
• M15: 13,263,646 km (0.11 R)
• M16: 16,258,895 km (0.059 R)
• M17: 17,430,246 km (0.033 R)
• M18: 18,036,716 km (0.108 R)
• M19: 18,469,503 km (0.086 R)
• M20: 21,905,467 km (0.101 R)
• M21: 23,996,246 km (0.07 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 20,042 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit