🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.8

Radius: 10.8

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.48 AU - 0.58 AU

Year: 266 Days

Day: 10.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 53,821,770 km

• M1: 134,488 km (0.068 R)
• M2: 526,285 km (0.094 R)
• M3: 1,242,859 km (0.054 R)
• M4: 1,928,466 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.2

Radius: 11.7

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.46 AU - 0.74 AU

Year: 321 Days

Day: 11.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,821,770 km

• M1: 145,559 km (0.077 R)
• M2: 722,857 km (0.054 R)
• M3: 1,317,209 km (0.092 R)
• M4: 1,718,281 km (0.091 R)
• M5: 2,734,948 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.4

Radius: 8.5

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.6 AU - 0.94 AU

Year: 466 Days

Day: 13.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 53,821,770 km

• M1: 105,766 km (0.108 R)
• M2: 481,107 km (0.109 R)
• M3: 1,173,296 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.5

Radius: 14.8

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.76 AU - 0.98 AU

Year: 560 Days

Day: 5 Hours

Environment

Temp: -171 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,821,770 km

• M1: 184,005 km (0.042 R)
• M2: 676,781 km (0.095 R)
• M3: 1,266,047 km (0.095 R)
• M4: 1,799,064 km (0.113 R)
• M5: 2,282,265 km (0.104 R)
• M6: 2,800,622 km (0.105 R)
• M7: 3,407,989 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.5

Radius: 14.9

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.13 AU - 1.35 AU

Year: 953 Days

Day: 9.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,821,770 km

• M1: 185,352 km (0.106 R)
• M2: 806,183 km (0.098 R)
• M3: 1,376,600 km (0.075 R)
• M4: 1,905,129 km (0.114 R)
• M5: 3,267,367 km (0.041 R)
• M6: 4,088,211 km (0.117 R)
• M7: 4,953,933 km (0.091 R)
• M8: 5,584,040 km (0.117 R)
• M9: 7,562,023 km (0.086 R)
• M10: 8,047,617 km (0.055 R)
• M11: 9,082,087 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.5

Radius: 9.3

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.07 AU - 1.77 AU

Year: 1168 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,821,770 km

• M1: 121,922 km (0.061 R)
• M2: 505,641 km (0.064 R)
• M3: 837,898 km (0.102 R)
• M4: 1,134,101 km (0.081 R)
• M5: 1,591,721 km (0.085 R)
• M6: 2,695,006 km (0.117 R)
• M7: 3,235,054 km (0.078 R)
• M8: 4,049,614 km (0.105 R)
• M9: 5,050,574 km (0.119 R)
• M10: 6,017,874 km (0.043 R)
• M11: 7,534,198 km (0.047 R)
• M12: 8,186,145 km (0.107 R)
• M13: 8,659,174 km (0.109 R)
• M14: 9,039,601 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.3

Radius: 13.6

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.5 AU - 1.78 AU

Year: 1450 Days

Day: 12.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,821,770 km

• M1: 169,794 km (0.113 R)
• M2: 921,224 km (0.038 R)
• M3: 1,495,380 km (0.092 R)
• M4: 1,928,167 km (0.038 R)
• M5: 2,568,296 km (0.109 R)
• M6: 3,071,543 km (0.075 R)
• M7: 4,315,001 km (0.12 R)
• M8: 5,152,001 km (0.105 R)
• M9: 6,512,295 km (0.114 R)
• M10: 7,774,153 km (0.097 R)
• M11: 8,750,428 km (0.073 R)
• M12: 10,513,439 km (0.075 R)
• M13: 11,253,500 km (0.107 R)
• M14: 11,742,535 km (0.1 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.2

Radius: 11.4

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.31 AU - 2.39 AU

Year: 2487 Days

Day: 11.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,821,770 km

• M1: 141,968 km (0.088 R)
• M2: 539,300 km (0.11 R)
• M3: 1,106,426 km (0.12 R)
• M4: 1,637,049 km (0.09 R)
• M5: 2,217,938 km (0.095 R)
• M6: 2,678,699 km (0.114 R)
• M7: 3,428,334 km (0.093 R)
• M8: 3,844,665 km (0.103 R)
• M9: 5,794,374 km (0.116 R)
• M10: 6,435,401 km (0.109 R)
• M11: 6,971,859 km (0.036 R)
• M12: 7,670,780 km (0.06 R)
• M13: 9,890,364 km (0.11 R)
• M14: 10,605,891 km (0.104 R)
• M15: 11,113,177 km (0.079 R)
• M16: 12,067,163 km (0.083 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.2

Radius: 11.1

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 3.41 AU - 4.07 AU

Year: 4993 Days

Day: 5.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 53,821,770 km

• M1: 138,079 km (0.071 R)
• M2: 703,260 km (0.119 R)
• M3: 1,429,258 km (0.074 R)
• M4: 2,116,211 km (0.052 R)
• M5: 2,563,210 km (0.092 R)
• M6: 3,119,714 km (0.11 R)
• M7: 3,863,515 km (0.04 R)
• M8: 4,912,196 km (0.085 R)
• M9: 5,702,521 km (0.067 R)
• M10: 6,191,108 km (0.056 R)
• M11: 7,478,547 km (0.052 R)
• M12: 13,697,181 km (0.087 R)
• M13: 14,087,931 km (0.12 R)
• M14: 14,891,720 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.4

Radius: 6.7

Gravity: 13.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.12 AU - 7.88 AU

Year: 12784 Days

Day: 17.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 53,821,770 km

• M1: 83,326 km (0.081 R)
• M2: 352,004 km (0.115 R)
• M3: 1,094,757 km (0.09 R)
• M4: 1,327,382 km (0.062 R)
• M5: 1,563,447 km (0.117 R)
• M6: 2,139,998 km (0.075 R)
• M7: 2,590,586 km (0.106 R)
• M8: 2,985,674 km (0.078 R)
• M9: 4,064,724 km (0.059 R)
• M10: 4,883,024 km (0.103 R)
• M11: 5,279,907 km (0.058 R)
• M12: 5,806,342 km (0.066 R)
• M13: 6,483,273 km (0.071 R)
• M14: 7,128,189 km (0.059 R)
• M15: 7,509,364 km (0.06 R)
• M16: 7,948,584 km (0.088 R)
• M17: 11,748,968 km (0.1 R)
• M18: 12,583,275 km (0.027 R)
• M19: 12,828,765 km (0.09 R)
• M20: 13,077,547 km (0.081 R)
• M21: 13,329,469 km (0.112 R)
• M22: 14,637,852 km (0.109 R)
• M23: 17,055,055 km (0.118 R)
• M24: 18,201,423 km (0.058 R)
• M25: 19,235,743 km (0.117 R)
• M26: 19,974,457 km (0.069 R)
• M27: 23,953,611 km (0.085 R)
• M28: 28,854,138 km (0.118 R)
• M29: 31,594,322 km (0.073 R)
• M30: 34,622,931 km (0.074 R)
• M31: 43,168,859 km (0.113 R)
• M32: 44,575,378 km (0.063 R)
• M33: 51,283,347 km (0.088 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 17,981 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit