🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 827

Radius: 8.2

Gravity: 12.3 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.71 AU - 0.99 AU

Year: 506 Days

Day: 13.4 Hours

Environment

Temp: -151 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,759,303 km

• M1: 102,026 km (0.092 R)
• M2: 389,403 km (0.09 R)
• M3: 720,613 km (0.053 R)
• M4: 1,052,720 km (0.082 R)
• M5: 1,329,775 km (0.12 R)
• M6: 1,749,697 km (0.108 R)
• M7: 2,143,588 km (0.1 R)
• M8: 2,401,794 km (0.095 R)
• M9: 2,867,492 km (0.093 R)
• M10: 3,366,999 km (0.117 R)
• M11: 3,731,420 km (0.108 R)
• M12: 4,952,438 km (0.03 R)
• M13: 5,321,047 km (0.09 R)
• M14: 5,582,843 km (0.118 R)
• M15: 6,170,314 km (0.118 R)
• M16: 6,818,521 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.1

Radius: 11.1

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.19 AU - 1.53 AU

Year: 1024 Days

Day: 10.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 25,759,303 km

• M1: 138,528 km (0.081 R)
• M2: 484,697 km (0.097 R)
• M3: 842,086 km (0.082 R)
• M4: 1,273,227 km (0.099 R)
• M5: 1,660,686 km (0.083 R)
• M6: 2,009,997 km (0.119 R)
• M7: 2,420,194 km (0.082 R)
• M8: 2,800,472 km (0.039 R)
• M9: 3,510,015 km (0.108 R)
• M10: 4,418,224 km (0.062 R)
• M11: 4,847,719 km (0.091 R)
• M12: 5,286,190 km (0.082 R)
• M13: 7,500,837 km (0.052 R)
• M14: 8,368,654 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180

Radius: 9.2

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.43 AU - 2.03 AU

Year: 1469 Days

Day: 12.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,759,303 km

• M1: 128,654 km (0.102 R)
• M2: 463,753 km (0.088 R)
• M3: 2,028,697 km (0.084 R)
• M4: 2,356,615 km (0.084 R)
• M5: 2,696,801 km (0.119 R)
• M6: 3,601,868 km (0.106 R)
• M7: 3,934,873 km (0.118 R)
• M8: 5,572,969 km (0.09 R)
• M9: 7,414,220 km (0.098 R)
• M10: 8,347,561 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.8

Radius: 14.3

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.94 AU - 2.06 AU

Year: 1826 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 25,759,303 km

• M1: 182,061 km (0.116 R)
• M2: 710,889 km (0.105 R)
• M3: 1,189,901 km (0.09 R)
• M4: 1,873,115 km (0.077 R)
• M5: 2,325,349 km (0.084 R)
• M6: 3,241,187 km (0.096 R)
• M7: 4,442,309 km (0.066 R)
• M8: 5,303,544 km (0.092 R)
• M9: 6,589,188 km (0.088 R)
• M10: 7,439,053 km (0.118 R)
• M11: 8,045,373 km (0.025 R)
• M12: 8,925,308 km (0.116 R)
• M13: 9,610,616 km (0.069 R)
• M14: 10,567,594 km (0.119 R)
• M15: 11,086,997 km (0.099 R)
• M16: 12,252,215 km (0.11 R)
• M17: 13,178,675 km (0.109 R)
• M18: 13,659,183 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.5

Radius: 13

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.86 AU - 3.14 AU

Year: 3355 Days

Day: 5.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,759,303 km

• M1: 164,857 km (0.05 R)
• M2: 571,165 km (0.056 R)
• M3: 1,325,886 km (0.109 R)
• M4: 3,166,239 km (0.117 R)
• M5: 3,884,608 km (0.114 R)
• M6: 4,640,077 km (0.084 R)
• M7: 6,706,622 km (0.083 R)
• M8: 8,607,712 km (0.098 R)
• M9: 9,663,873 km (0.111 R)
• M10: 12,254,010 km (0.115 R)
• M11: 14,218,829 km (0.103 R)
• M12: 20,789,466 km (0.06 R)
• M13: 21,236,914 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.5

Radius: 10.2

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.83 AU - 4.85 AU

Year: 5838 Days

Day: 11.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 25,759,303 km

• M1: 126,859 km (0.112 R)
• M2: 873,801 km (0.117 R)
• M3: 1,486,853 km (0.095 R)
• M4: 2,207,616 km (0.108 R)
• M5: 2,656,858 km (0.113 R)
• M6: 3,106,699 km (0.12 R)
• M7: 4,611,953 km (0.096 R)
• M8: 5,068,077 km (0.103 R)
• M9: 5,583,890 km (0.108 R)
• M10: 6,071,430 km (0.102 R)
• M11: 6,488,209 km (0.104 R)
• M12: 8,234,016 km (0.109 R)
• M13: 8,665,457 km (0.081 R)
• M14: 10,681,288 km (0.087 R)
• M15: 12,372,941 km (0.054 R)
• M16: 12,783,288 km (0.09 R)
• M17: 13,904,224 km (0.113 R)
• M18: 14,915,955 km (0.07 R)
• M19: 16,097,030 km (0.102 R)
• M20: 19,116,214 km (0.101 R)
• M21: 19,596,124 km (0.079 R)
• M22: 27,793,190 km (0.096 R)
• M23: 29,486,488 km (0.118 R)
• M24: 31,247,704 km (0.056 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 696.8

Radius: 5.3

Gravity: 24.81 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.94 AU - 6.1 AU

Year: 9537 Days

Day: 15.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 69.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 25,759,303 km

• M1: 69,114 km (0.071 R)
• M2: 239,656 km (0.109 R)
• M3: 760,256 km (0.111 R)
• M4: 973,733 km (0.107 R)
• M5: 1,594,265 km (0.038 R)
• M6: 2,031,539 km (0.088 R)
• M7: 2,333,876 km (0.089 R)
• M8: 2,525,511 km (0.07 R)
• M9: 3,621,166 km (0.085 R)
• M10: 3,826,115 km (0.108 R)
• M11: 4,203,700 km (0.071 R)
• M12: 4,576,199 km (0.09 R)
• M13: 4,846,672 km (0.075 R)
• M14: 5,895,951 km (0.047 R)
• M15: 6,738,187 km (0.063 R)
• M16: 7,574,589 km (0.072 R)
• M17: 8,389,149 km (0.043 R)
• M18: 8,794,709 km (0.087 R)
• M19: 9,596,255 km (0.111 R)
• M20: 10,445,522 km (0.074 R)
• M21: 11,181,693 km (0.093 R)
• M22: 11,672,823 km (0.057 R)
• M23: 12,064,769 km (0.088 R)
• M24: 13,906,169 km (0.077 R)
• M25: 14,093,765 km (0.099 R)
• M26: 19,507,263 km (0.058 R)
• M27: 20,865,013 km (0.094 R)
• M28: 21,442,012 km (0.048 R)
• M29: 22,284,697 km (0.05 R)
• M30: 22,455,837 km (0.07 R)
• M31: 27,908,081 km (0.111 R)
• M32: 34,866,626 km (0.047 R)
• M33: 43,562,002 km (0.11 R)
• M34: 46,010,620 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 73.4

Radius: 6.5

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.5 AU - 7.56 AU

Year: 12035 Days

Day: 21.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,759,303 km

• M1: 80,783 km (0.052 R)
• M2: 586,274 km (0.065 R)
• M3: 1,850,675 km (0.112 R)
• M4: 2,613,026 km (0.085 R)
• M5: 3,947,140 km (0.057 R)
• M6: 4,614,646 km (0.096 R)
• M7: 5,354,706 km (0.12 R)
• M8: 5,795,422 km (0.048 R)
• M9: 6,230,452 km (0.111 R)
• M10: 7,198,051 km (0.081 R)
• M11: 24,996,607 km (0.103 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 242 - 18,782 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit