🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948

Radius: 9.8

Gravity: 9.87 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.76 AU - 1.04 AU

Year: 589 Days

Day: 7.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,804,044 km

• M1: 122,969 km (0.083 R)
• M2: 663,018 km (0.088 R)
• M3: 1,094,159 km (0.1 R)
• M4: 1,433,148 km (0.05 R)
• M5: 1,825,692 km (0.066 R)
• M6: 2,191,010 km (0.12 R)
• M7: 2,739,287 km (0.041 R)
• M8: 3,095,778 km (0.099 R)
• M9: 3,416,516 km (0.119 R)
• M10: 4,095,092 km (0.055 R)
• M11: 4,997,766 km (0.058 R)
• M12: 5,459,574 km (0.117 R)
• M13: 5,891,613 km (0.09 R)
• M14: 6,285,803 km (0.094 R)
• M15: 7,994,361 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.3

Radius: 10.2

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.33 AU - 1.55 AU

Year: 1193 Days

Day: 9.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,804,044 km

• M1: 126,859 km (0.088 R)
• M2: 521,349 km (0.108 R)
• M3: 959,970 km (0.108 R)
• M4: 1,433,148 km (0.048 R)
• M5: 2,434,705 km (0.082 R)
• M6: 2,829,793 km (0.119 R)
• M7: 3,208,725 km (0.103 R)
• M8: 3,866,058 km (0.091 R)
• M9: 4,262,642 km (0.093 R)
• M10: 4,762,897 km (0.035 R)
• M11: 5,117,893 km (0.082 R)
• M12: 5,618,597 km (0.111 R)
• M13: 6,718,590 km (0.116 R)
• M14: 7,660,159 km (0.066 R)
• M15: 8,066,168 km (0.119 R)
• M16: 8,629,703 km (0.115 R)
• M17: 8,950,590 km (0.054 R)
• M18: 10,744,119 km (0.108 R)
• M19: 11,391,878 km (0.047 R)
• M20: 11,849,947 km (0.097 R)
• M21: 12,210,627 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462.8

Radius: 11.5

Gravity: 3.5 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.37 AU - 2.63 AU

Year: 2728 Days

Day: 14.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,804,044 km

• M1: 143,913 km (0.078 R)
• M2: 762,351 km (0.115 R)
• M3: 1,774,530 km (0.106 R)
• M4: 2,284,659 km (0.067 R)
• M5: 2,697,100 km (0.052 R)
• M6: 3,342,166 km (0.102 R)
• M7: 4,765,440 km (0.085 R)
• M8: 5,445,213 km (0.101 R)
• M9: 7,400,008 km (0.12 R)
• M10: 8,994,722 km (0.072 R)
• M11: 9,366,771 km (0.106 R)
• M12: 10,360,700 km (0.095 R)
• M13: 11,074,132 km (0.032 R)
• M14: 11,779,935 km (0.079 R)
• M15: 12,349,603 km (0.05 R)
• M16: 13,456,029 km (0.101 R)
• M17: 14,534,929 km (0.079 R)
• M18: 15,963,589 km (0.111 R)
• M19: 17,379,533 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.8

Radius: 14.5

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.94 AU - 3.14 AU

Year: 3659 Days

Day: 12.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,804,044 km

• M1: 180,415 km (0.058 R)
• M2: 720,463 km (0.074 R)
• M3: 1,899,594 km (0.084 R)
• M4: 2,832,486 km (0.087 R)
• M5: 3,505,677 km (0.066 R)
• M6: 4,326,819 km (0.092 R)
• M7: 4,888,559 km (0.098 R)
• M8: 5,575,363 km (0.088 R)
• M9: 6,050,336 km (0.113 R)
• M10: 7,112,631 km (0.077 R)
• M11: 8,465,444 km (0.109 R)
• M12: 9,023,893 km (0.117 R)
• M13: 10,370,723 km (0.11 R)
• M14: 10,929,321 km (0.091 R)
• M15: 12,414,379 km (0.069 R)
• M16: 15,115,369 km (0.083 R)
• M17: 15,730,515 km (0.109 R)
• M18: 17,564,436 km (0.066 R)
• M19: 18,187,212 km (0.111 R)
• M20: 18,707,812 km (0.095 R)
• M21: 19,839,370 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 231.2

Radius: 12.5

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.95 AU - 4.37 AU

Year: 4833 Days

Day: 10.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,804,044 km

• M1: 255,663 km (0.087 R)
• M2: 763,099 km (0.112 R)
• M3: 1,928,765 km (0.113 R)
• M4: 2,689,919 km (0.116 R)
• M5: 3,158,011 km (0.03 R)
• M6: 5,329,125 km (0.072 R)
• M7: 6,263,064 km (0.057 R)
• M8: 6,740,581 km (0.115 R)
• M9: 7,993,313 km (0.092 R)
• M10: 9,323,538 km (0.12 R)
• M11: 9,872,711 km (0.1 R)
• M12: 17,589,119 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.8

Radius: 7

Gravity: 19.47 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.39 AU - 10.57 AU

Year: 17045 Days

Day: 17.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 64,804,044 km

• M1: 87,066 km (0.053 R)
• M2: 448,794 km (0.111 R)
• M3: 877,392 km (0.117 R)
• M4: 1,195,287 km (0.112 R)
• M5: 1,522,906 km (0.11 R)
• M6: 2,929,575 km (0.035 R)
• M7: 3,330,049 km (0.082 R)
• M8: 3,676,218 km (0.102 R)
• M9: 4,682,413 km (0.117 R)
• M10: 5,820,255 km (0.084 R)
• M11: 6,152,661 km (0.096 R)
• M12: 6,410,119 km (0.112 R)
• M13: 10,088,282 km (0.072 R)
• M14: 11,063,361 km (0.076 R)
• M15: 17,660,029 km (0.057 R)
• M16: 18,357,005 km (0.093 R)
• M17: 19,528,656 km (0.102 R)
• M18: 20,368,348 km (0.117 R)
• M19: 21,134,888 km (0.113 R)
• M20: 24,393,728 km (0.029 R)
• M21: 26,933,002 km (0.073 R)
• M22: 28,919,363 km (0.057 R)
• M23: 36,151,223 km (0.109 R)
• M24: 46,608,264 km (0.089 R)
• M25: 47,103,732 km (0.105 R)
• M26: 47,602,790 km (0.114 R)
• M27: 48,273,587 km (0.103 R)
• M28: 51,546,190 km (0.109 R)
• M29: 52,253,489 km (0.115 R)
• M30: 54,050,159 km (0.089 R)
• M31: 61,450,916 km (0.098 R)
• M32: 62,846,963 km (0.062 R)
• M33: 64,672,805 km (0.115 R)
• M34: 69,929,824 km (0.098 R)
• M35: 74,335,032 km (0.118 R)
• M36: 76,147,710 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446

Radius: 3.3

Gravity: 40.96 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 8.95 AU - 9.59 AU

Year: 19482 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,804,044 km

• M1: 62,382 km (0.103 R)
• M2: 331,958 km (0.069 R)
• M3: 1,344,286 km (0.093 R)
• M4: 1,772,286 km (0.073 R)
• M5: 2,389,676 km (0.117 R)
• M6: 3,708,082 km (0.047 R)
• M7: 5,371,910 km (0.091 R)
• M8: 6,510,649 km (0.1 R)
• M9: 8,136,479 km (0.084 R)
• M10: 11,721,891 km (0.099 R)
• M11: 16,938,817 km (0.063 R)
• M12: 17,338,543 km (0.115 R)
• M13: 24,415,719 km (0.045 R)
• M14: 41,521,936 km (0.108 R)
• M15: 50,142,962 km (0.065 R)
• M16: 52,978,291 km (0.082 R)
• M17: 54,521,842 km (0.115 R)
• M18: 57,878,070 km (0.038 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: 546 - 16,581 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit