🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.7

Radius: 8.5

Gravity: 12.38 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.72 AU - 0.74 AU

Year: 423 Days

Day: 9.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,680,192 km

• M1: 105,766 km (0.077 R)
• M2: 412,441 km (0.115 R)
• M3: 815,009 km (0.083 R)
• M4: 1,096,253 km (0.077 R)
• M5: 1,410,110 km (0.047 R)
• M6: 1,699,881 km (0.085 R)
• M7: 1,987,109 km (0.045 R)
• M8: 2,269,848 km (0.075 R)
• M9: 2,640,552 km (0.07 R)
• M10: 2,928,378 km (0.088 R)
• M11: 3,236,999 km (0.1 R)
• M12: 3,605,608 km (0.11 R)
• M13: 3,947,439 km (0.112 R)
• M14: 4,397,878 km (0.109 R)
• M15: 5,885,928 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.9

Radius: 14.4

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.6 AU - 0.9 AU

Year: 441 Days

Day: 9.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,680,192 km

• M1: 179,218 km (0.112 R)
• M2: 917,933 km (0.111 R)
• M3: 1,469,051 km (0.059 R)
• M4: 2,506,961 km (0.05 R)
• M5: 3,055,985 km (0.031 R)
• M6: 3,685,044 km (0.067 R)
• M7: 4,822,138 km (0.067 R)
• M8: 5,541,255 km (0.091 R)
• M9: 6,368,531 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.3

Radius: 13

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.02 AU - 1.68 AU

Year: 1064 Days

Day: 14.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,680,192 km

• M1: 165,156 km (0.101 R)
• M2: 659,427 km (0.12 R)
• M3: 1,126,023 km (0.068 R)
• M4: 2,368,284 km (0.086 R)
• M5: 2,880,956 km (0.11 R)
• M6: 3,539,486 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.8

Radius: 11.9

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.53 AU - 1.87 AU

Year: 1503 Days

Day: 11 Hours

Environment

Temp: -194 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,680,192 km

• M1: 148,102 km (0.102 R)
• M2: 645,066 km (0.112 R)
• M3: 1,229,545 km (0.075 R)
• M4: 1,678,339 km (0.088 R)
• M5: 2,279,273 km (0.062 R)
• M6: 3,476,505 km (0.112 R)
• M7: 4,156,876 km (0.069 R)
• M8: 5,302,945 km (0.062 R)
• M9: 5,701,324 km (0.111 R)
• M10: 6,358,657 km (0.117 R)
• M11: 6,971,710 km (0.106 R)
• M12: 8,237,308 km (0.085 R)
• M13: 8,637,332 km (0.1 R)
• M14: 9,332,813 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66

Radius: 12.9

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.55 AU - 2.69 AU

Year: 2876 Days

Day: 12.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,680,192 km

• M1: 162,014 km (0.115 R)
• M2: 574,605 km (0.115 R)
• M3: 2,026,004 km (0.111 R)
• M4: 2,559,620 km (0.103 R)
• M5: 3,913,929 km (0.101 R)
• M6: 5,238,319 km (0.062 R)
• M7: 6,424,481 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.8

Radius: 10.1

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 2.68 AU - 3.98 AU

Year: 4122 Days

Day: 13.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,680,192 km

• M1: 127,607 km (0.082 R)
• M2: 455,825 km (0.096 R)
• M3: 787,034 km (0.118 R)
• M4: 1,203,216 km (0.07 R)
• M5: 1,876,705 km (0.109 R)
• M6: 4,179,615 km (0.062 R)
• M7: 6,638,854 km (0.104 R)
• M8: 7,428,432 km (0.111 R)
• M9: 13,339,642 km (0.066 R)
• M10: 13,782,901 km (0.075 R)
• M11: 14,543,307 km (0.025 R)
• M12: 15,982,289 km (0.08 R)
• M13: 18,105,381 km (0.065 R)
• M14: 19,642,200 km (0.086 R)
• M15: 21,330,861 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.3

Radius: 11.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.34 AU - 5.64 AU

Year: 7560 Days

Day: 13.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,680,192 km

• M1: 138,079 km (0.094 R)
• M2: 1,032,375 km (0.073 R)
• M3: 4,540,445 km (0.092 R)
• M4: 5,690,853 km (0.081 R)
• M5: 8,036,248 km (0.053 R)
• M6: 9,423,170 km (0.03 R)
• M7: 10,117,454 km (0.079 R)
• M8: 12,665,554 km (0.11 R)
• M9: 18,203,368 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.9

Radius: 5.3

Gravity: 23.96 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 6.47 AU - 7.33 AU

Year: 12293 Days

Day: 18.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 64.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 54,680,192 km

• M1: 65,973 km (0.118 R)
• M2: 373,995 km (0.114 R)
• M3: 593,754 km (0.118 R)
• M4: 919,279 km (0.114 R)
• M5: 1,129,015 km (0.119 R)
• M6: 1,316,910 km (0.056 R)
• M7: 2,100,803 km (0.043 R)
• M8: 2,427,674 km (0.072 R)
• M9: 2,969,069 km (0.061 R)
• M10: 3,231,314 km (0.12 R)
• M11: 4,592,505 km (0.108 R)
• M12: 5,736,181 km (0.088 R)
• M13: 7,396,119 km (0.094 R)
• M14: 7,968,779 km (0.104 R)
• M15: 8,382,268 km (0.049 R)
• M16: 11,803,721 km (0.114 R)
• M17: 12,956,522 km (0.108 R)
• M18: 13,983,811 km (0.115 R)
• M19: 15,273,045 km (0.109 R)
• M20: 15,767,316 km (0.057 R)
• M21: 16,937,172 km (0.072 R)
• M22: 17,774,172 km (0.116 R)
• M23: 20,878,178 km (0.09 R)
• M24: 21,751,381 km (0.085 R)
• M25: 22,739,624 km (0.093 R)
• M26: 28,028,358 km (0.062 R)
• M27: 28,875,680 km (0.11 R)
• M28: 31,519,972 km (0.089 R)
• M29: 35,290,586 km (0.109 R)
• M30: 37,030,859 km (0.065 R)
• M31: 39,219,775 km (0.104 R)
• M32: 40,145,785 km (0.118 R)
• M33: 43,290,482 km (0.105 R)
• M34: 43,712,498 km (0.109 R)
• M35: 49,910,936 km (0.111 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 11,590 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit