🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.5

Radius: 8.5

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.86 AU - 1.32 AU

Year: 735 Days

Day: 7.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 118.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,881,512 km

• M1: 105,766 km (0.063 R)
• M2: 379,829 km (0.114 R)
• M3: 680,521 km (0.106 R)
• M4: 1,077,703 km (0.115 R)
• M5: 1,804,599 km (0.093 R)
• M6: 2,195,349 km (0.109 R)
• M7: 2,803,614 km (0.087 R)
• M8: 3,100,117 km (0.055 R)
• M9: 3,962,698 km (0.081 R)
• M10: 4,472,827 km (0.05 R)
• M11: 5,141,978 km (0.047 R)
• M12: 6,442,133 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.8

Radius: 10.4

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.27 AU - 1.29 AU

Year: 935 Days

Day: 9.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,881,512 km

• M1: 129,402 km (0.086 R)
• M2: 632,201 km (0.109 R)
• M3: 1,192,295 km (0.075 R)
• M4: 1,559,707 km (0.091 R)
• M5: 1,906,176 km (0.106 R)
• M6: 3,067,205 km (0.083 R)
• M7: 3,648,542 km (0.042 R)
• M8: 4,647,856 km (0.093 R)
• M9: 5,455,685 km (0.101 R)
• M10: 6,967,521 km (0.047 R)
• M11: 7,471,217 km (0.044 R)
• M12: 8,470,979 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.4

Radius: 13

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.07 AU - 3.27 AU

Year: 2817 Days

Day: 9.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,881,512 km

• M1: 161,715 km (0.072 R)
• M2: 583,731 km (0.117 R)
• M3: 1,083,537 km (0.062 R)
• M4: 1,518,568 km (0.1 R)
• M5: 1,971,401 km (0.041 R)
• M6: 2,728,665 km (0.111 R)
• M7: 3,519,888 km (0.082 R)
• M8: 4,093,746 km (0.045 R)
• M9: 5,011,678 km (0.053 R)
• M10: 6,510,350 km (0.062 R)
• M11: 7,131,929 km (0.115 R)
• M12: 7,956,064 km (0.099 R)
• M13: 9,056,655 km (0.091 R)
• M14: 10,452,702 km (0.084 R)
• M15: 11,432,269 km (0.102 R)
• M16: 13,432,542 km (0.092 R)
• M17: 16,883,616 km (0.078 R)
• M18: 18,001,710 km (0.114 R)
• M19: 21,012,816 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.4

Radius: 14.4

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.89 AU - 4.03 AU

Year: 4156 Days

Day: 7.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,881,512 km

• M1: 179,368 km (0.099 R)
• M2: 820,245 km (0.108 R)
• M3: 1,281,904 km (0.099 R)
• M4: 1,947,315 km (0.105 R)
• M5: 7,072,838 km (0.06 R)
• M6: 8,642,119 km (0.081 R)
• M7: 13,133,496 km (0.057 R)
• M8: 14,099,300 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.1

Radius: 9.7

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.81 AU - 5.51 AU

Year: 6495 Days

Day: 13.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,881,512 km

• M1: 124,166 km (0.049 R)
• M2: 656,735 km (0.112 R)
• M3: 1,079,947 km (0.102 R)
• M4: 1,718,580 km (0.045 R)
• M5: 2,116,361 km (0.068 R)
• M6: 2,725,673 km (0.094 R)
• M7: 3,062,717 km (0.115 R)
• M8: 3,673,077 km (0.116 R)
• M9: 6,115,561 km (0.119 R)
• M10: 7,416,614 km (0.109 R)
• M11: 8,817,149 km (0.106 R)
• M12: 9,242,156 km (0.104 R)
• M13: 11,439,749 km (0.096 R)
• M14: 15,691,171 km (0.054 R)
• M15: 18,415,797 km (0.084 R)
• M16: 19,368,436 km (0.109 R)
• M17: 20,087,703 km (0.111 R)
• M18: 22,926,322 km (0.105 R)
• M19: 23,953,910 km (0.087 R)
• M20: 24,328,204 km (0.09 R)
• M21: 24,630,541 km (0.054 R)
• M22: 25,242,546 km (0.057 R)
• M23: 25,786,484 km (0.109 R)
• M24: 26,656,845 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 920.3

Radius: 4.7

Gravity: 41.66 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.11 AU - 9.93 AU

Year: 18966 Days

Day: 15.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 72,881,512 km

• M1: 59,390 km (0.091 R)
• M2: 205,547 km (0.106 R)
• M3: 428,897 km (0.096 R)
• M4: 605,123 km (0.119 R)
• M5: 3,269,461 km (0.093 R)
• M6: 4,363,171 km (0.112 R)
• M7: 5,804,697 km (0.106 R)
• M8: 6,407,576 km (0.12 R)
• M9: 7,388,639 km (0.1 R)
• M10: 11,055,283 km (0.072 R)
• M11: 11,643,202 km (0.07 R)
• M12: 13,023,691 km (0.102 R)
• M13: 13,827,630 km (0.077 R)
• M14: 21,088,662 km (0.081 R)
• M15: 21,788,481 km (0.068 R)
• M16: 25,633,745 km (0.102 R)
• M17: 26,430,653 km (0.095 R)
• M18: 26,893,209 km (0.053 R)
• M19: 27,954,008 km (0.053 R)
• M20: 30,284,294 km (0.111 R)
• M21: 34,222,009 km (0.117 R)
• M22: 34,771,631 km (0.061 R)
• M23: 37,462,448 km (0.091 R)
• M24: 39,082,145 km (0.074 R)
• M25: 39,531,836 km (0.086 R)
• M26: 42,776,763 km (0.079 R)
• M27: 46,028,123 km (0.078 R)
• M28: 47,373,457 km (0.037 R)
• M29: 54,868,909 km (0.031 R)
• M30: 59,487,593 km (0.049 R)
• M31: 60,082,544 km (0.098 R)
• M32: 60,481,372 km (0.073 R)
• M33: 62,911,589 km (0.096 R)
• M34: 67,534,463 km (0.072 R)
• M35: 81,038,962 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.5

Radius: 5.3

Gravity: 18.71 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.75 AU - 11.89 AU

Year: 21406 Days

Day: 21.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,881,512 km

• M1: 100,530 km (0.085 R)
• M2: 375,491 km (0.044 R)
• M3: 740,210 km (0.072 R)
• M4: 1,231,190 km (0.096 R)
• M5: 1,823,448 km (0.112 R)
• M6: 7,293,046 km (0.07 R)
• M7: 7,529,710 km (0.08 R)
• M8: 9,388,014 km (0.064 R)
• M9: 9,781,906 km (0.077 R)
• M10: 10,011,837 km (0.111 R)
• M11: 13,060,044 km (0.094 R)
• M12: 13,621,933 km (0.09 R)
• M13: 23,986,523 km (0.109 R)
• M14: 29,333,898 km (0.041 R)
• M15: 39,921,089 km (0.113 R)
• M16: 41,550,659 km (0.087 R)
• M17: 49,181,946 km (0.073 R)
• M18: 51,745,455 km (0.081 R)
• M19: 54,038,192 km (0.116 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 275 - 17,487 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit