🌌 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: 211.3

Radius: 9

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.66 AU - 0.94 AU

Year: 455 Days

Day: 5.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,110,866 km

• M1: 111,899 km (0.115 R)
• M2: 444,754 km (0.085 R)
• M3: 883,375 km (0.115 R)
• M4: 1,219,821 km (0.112 R)
• M5: 2,024,807 km (0.099 R)
• M6: 2,595,373 km (0.065 R)
• M7: 3,468,427 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.6

Radius: 13.2

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.74 AU - 1.1 AU

Year: 561 Days

Day: 9.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,110,866 km

• M1: 164,258 km (0.036 R)
• M2: 666,608 km (0.095 R)
• M3: 1,178,682 km (0.113 R)
• M4: 1,897,200 km (0.102 R)
• M5: 2,387,133 km (0.088 R)
• M6: 2,848,643 km (0.113 R)
• M7: 3,332,442 km (0.114 R)
• M8: 4,096,738 km (0.039 R)
• M9: 5,024,693 km (0.112 R)
• M10: 5,574,465 km (0.047 R)
• M11: 6,877,164 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.5

Radius: 8

Gravity: 11.55 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.95 AU - 1.35 AU

Year: 784 Days

Day: 13.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,110,866 km

• M1: 99,483 km (0.046 R)
• M2: 425,456 km (0.101 R)
• M3: 708,944 km (0.055 R)
• M4: 1,042,248 km (0.114 R)
• M5: 1,810,882 km (0.095 R)
• M6: 2,359,009 km (0.08 R)
• M7: 2,827,101 km (0.088 R)
• M8: 3,301,475 km (0.101 R)
• M9: 3,550,855 km (0.097 R)
• M10: 3,827,910 km (0.085 R)
• M11: 4,922,069 km (0.055 R)
• M12: 5,211,840 km (0.086 R)
• M13: 6,486,264 km (0.1 R)
• M14: 6,768,705 km (0.084 R)
• M15: 8,030,713 km (0.049 R)
• M16: 8,280,541 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.1

Radius: 9.5

Gravity: 8.67 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 1.64 AU - 2.64 AU

Year: 1990 Days

Day: 14.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 23,110,866 km

• M1: 119,379 km (0.092 R)
• M2: 576,101 km (0.054 R)
• M3: 883,375 km (0.097 R)
• M4: 1,228,199 km (0.095 R)
• M5: 1,674,000 km (0.038 R)
• M6: 2,005,659 km (0.107 R)
• M7: 2,341,655 km (0.051 R)
• M8: 2,863,752 km (0.11 R)
• M9: 3,873,986 km (0.08 R)
• M10: 4,840,837 km (0.065 R)
• M11: 8,105,213 km (0.098 R)
• M12: 9,572,768 km (0.083 R)
• M13: 11,402,798 km (0.087 R)
• M14: 11,715,907 km (0.06 R)
• M15: 13,153,692 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.1

Radius: 11.5

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.42 AU - 3.44 AU

Year: 3189 Days

Day: 13.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,110,866 km

• M1: 143,165 km (0.08 R)
• M2: 563,984 km (0.102 R)
• M3: 1,615,059 km (0.041 R)
• M4: 2,279,423 km (0.091 R)
• M5: 2,985,076 km (0.061 R)
• M6: 3,429,830 km (0.059 R)
• M7: 4,282,688 km (0.071 R)
• M8: 6,785,011 km (0.114 R)
• M9: 8,184,350 km (0.098 R)
• M10: 13,246,592 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.7

Radius: 10.6

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.94 AU - 3.26 AU

Year: 3470 Days

Day: 7.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,110,866 km

• M1: 131,945 km (0.116 R)
• M2: 501,153 km (0.097 R)
• M3: 1,879,697 km (0.077 R)
• M4: 3,185,088 km (0.119 R)
• M5: 4,432,286 km (0.031 R)
• M6: 4,883,473 km (0.11 R)
• M7: 5,460,472 km (0.09 R)
• M8: 8,171,335 km (0.065 R)
• M9: 10,699,389 km (0.091 R)
• M10: 11,043,464 km (0.106 R)
• M11: 11,474,157 km (0.109 R)
• M12: 13,708,700 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.1

Radius: 8.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 3.93 AU - 5.45 AU

Year: 6458 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 23,110,866 km

• M1: 110,702 km (0.096 R)
• M2: 405,410 km (0.118 R)
• M3: 983,157 km (0.077 R)
• M4: 1,627,326 km (0.071 R)
• M5: 3,593,341 km (0.108 R)
• M6: 3,875,034 km (0.099 R)
• M7: 4,575,152 km (0.09 R)
• M8: 5,078,698 km (0.097 R)
• M9: 5,972,097 km (0.028 R)
• M10: 6,663,239 km (0.102 R)
• M11: 9,318,003 km (0.101 R)
• M12: 10,048,639 km (0.032 R)
• M13: 11,236,745 km (0.097 R)
• M14: 11,842,616 km (0.055 R)
• M15: 13,072,610 km (0.072 R)
• M16: 14,235,733 km (0.095 R)
• M17: 15,731,263 km (0.098 R)
• M18: 16,107,502 km (0.107 R)
• M19: 16,434,672 km (0.089 R)
• M20: 18,491,942 km (0.06 R)
• M21: 21,428,549 km (0.103 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: 518 - 18,595 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit