🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.3

Radius: 14

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.58 AU - 0.62 AU

Year: 321 Days

Day: 9 Hours

Environment

Temp: -149 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,398,080 km

• M1: 174,132 km (0.118 R)
• M2: 634,594 km (0.084 R)
• M3: 1,169,706 km (0.107 R)
• M4: 1,698,983 km (0.106 R)
• M5: 2,604,349 km (0.114 R)
• M6: 3,076,480 km (0.06 R)
• M7: 4,246,784 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.2

Radius: 8

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.55 AU - 0.81 AU

Year: 387 Days

Day: 6.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,398,080 km

• M1: 99,483 km (0.078 R)
• M2: 446,849 km (0.099 R)
• M3: 725,550 km (0.106 R)
• M4: 979,417 km (0.105 R)
• M5: 1,327,980 km (0.1 R)
• M6: 1,577,061 km (0.099 R)
• M7: 1,865,037 km (0.051 R)
• M8: 2,171,862 km (0.11 R)
• M9: 2,987,918 km (0.118 R)
• M10: 3,601,868 km (0.05 R)
• M11: 4,220,156 km (0.054 R)
• M12: 4,575,002 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.9

Radius: 11.4

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.42 AU - 1.54 AU

Year: 1243 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,398,080 km

• M1: 141,819 km (0.076 R)
• M2: 602,879 km (0.103 R)
• M3: 1,103,284 km (0.066 R)
• M4: 1,507,797 km (0.115 R)
• M5: 2,713,257 km (0.09 R)
• M6: 5,021,103 km (0.107 R)
• M7: 5,712,544 km (0.081 R)
• M8: 7,606,453 km (0.084 R)
• M9: 8,384,362 km (0.115 R)
• M10: 9,214,481 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.6

Radius: 11.3

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.88 AU - 2.14 AU

Year: 1967 Days

Day: 12.7 Hours

Environment

Temp: -209 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,398,080 km

• M1: 140,921 km (0.074 R)
• M2: 544,985 km (0.094 R)
• M3: 1,191,846 km (0.101 R)
• M4: 1,597,107 km (0.042 R)
• M5: 2,118,156 km (0.119 R)
• M6: 2,496,340 km (0.057 R)
• M7: 3,036,986 km (0.079 R)
• M8: 3,722,593 km (0.119 R)
• M9: 4,185,449 km (0.104 R)
• M10: 4,706,499 km (0.101 R)
• M11: 5,227,249 km (0.039 R)
• M12: 5,648,516 km (0.101 R)
• M13: 6,310,637 km (0.111 R)
• M14: 7,023,919 km (0.09 R)
• M15: 8,018,895 km (0.064 R)
• M16: 8,702,407 km (0.099 R)
• M17: 9,359,890 km (0.086 R)
• M18: 10,322,103 km (0.069 R)
• M19: 13,277,409 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797

Radius: 13.4

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.69 AU - 3.03 AU

Year: 3339 Days

Day: 11.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,398,080 km

• M1: 173,534 km (0.099 R)
• M2: 630,405 km (0.12 R)
• M3: 1,208,601 km (0.088 R)
• M4: 1,888,823 km (0.106 R)
• M5: 2,732,704 km (0.028 R)
• M6: 3,306,861 km (0.09 R)
• M7: 4,088,659 km (0.111 R)
• M8: 5,449,701 km (0.104 R)
• M9: 6,365,389 km (0.071 R)
• M10: 7,945,442 km (0.05 R)
• M11: 8,863,823 km (0.089 R)
• M12: 10,010,042 km (0.107 R)
• M13: 10,577,916 km (0.119 R)
• M14: 12,924,658 km (0.116 R)
• M15: 14,295,722 km (0.048 R)
• M16: 15,815,786 km (0.039 R)
• M17: 16,419,713 km (0.118 R)
• M18: 17,096,045 km (0.111 R)
• M19: 19,113,671 km (0.088 R)
• M20: 20,760,445 km (0.119 R)
• M21: 23,264,264 km (0.07 R)
• M22: 24,262,231 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133

Radius: 12.6

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.91 AU - 3.79 AU

Year: 4232 Days

Day: 7.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,398,080 km

• M1: 156,779 km (0.116 R)
• M2: 922,420 km (0.096 R)
• M3: 1,558,810 km (0.097 R)
• M4: 2,001,470 km (0.101 R)
• M5: 2,515,339 km (0.029 R)
• M6: 3,273,650 km (0.081 R)
• M7: 3,866,207 km (0.07 R)
• M8: 4,313,056 km (0.042 R)
• M9: 4,962,909 km (0.1 R)
• M10: 5,700,576 km (0.091 R)
• M11: 6,902,595 km (0.114 R)
• M12: 8,236,859 km (0.112 R)
• M13: 8,697,022 km (0.112 R)
• M14: 9,469,096 km (0.08 R)
• M15: 10,604,694 km (0.119 R)
• M16: 12,257,451 km (0.085 R)
• M17: 13,063,036 km (0.064 R)
• M18: 14,381,143 km (0.026 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.4

Radius: 14.1

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.08 AU - 4.76 AU

Year: 5357 Days

Day: 6.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,398,080 km

• M1: 228,137 km (0.052 R)
• M2: 763,398 km (0.092 R)
• M3: 1,397,543 km (0.069 R)
• M4: 2,042,759 km (0.101 R)
• M5: 2,775,190 km (0.08 R)
• M6: 4,403,862 km (0.037 R)
• M7: 4,947,202 km (0.106 R)
• M8: 6,409,820 km (0.05 R)
• M9: 7,052,343 km (0.114 R)
• M10: 7,892,335 km (0.119 R)
• M11: 8,697,770 km (0.117 R)
• M12: 14,969,361 km (0.037 R)
• M13: 15,851,839 km (0.108 R)
• M14: 17,082,132 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.1

Radius: 7.9

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.07 AU - 6.05 AU

Year: 9049 Days

Day: 23.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 31,398,080 km

• M1: 98,585 km (0.052 R)
• M2: 436,078 km (0.053 R)
• M3: 1,076,506 km (0.1 R)
• M4: 1,558,511 km (0.068 R)
• M5: 1,870,572 km (0.062 R)
• M6: 2,116,511 km (0.112 R)
• M7: 3,306,562 km (0.099 R)
• M8: 4,575,900 km (0.097 R)
• M9: 4,999,561 km (0.084 R)
• M10: 5,305,788 km (0.082 R)
• M11: 6,017,574 km (0.057 R)
• M12: 6,268,600 km (0.047 R)
• M13: 6,526,506 km (0.079 R)
• M14: 7,202,689 km (0.094 R)
• M15: 7,776,546 km (0.12 R)
• M16: 10,070,779 km (0.079 R)
• M17: 13,092,656 km (0.073 R)
• M18: 14,111,118 km (0.111 R)
• M19: 14,499,325 km (0.088 R)
• M20: 14,894,562 km (0.071 R)
• M21: 15,471,711 km (0.075 R)
• M22: 16,003,831 km (0.091 R)
• M23: 17,673,642 km (0.097 R)
• M24: 18,916,052 km (0.033 R)
• M25: 19,388,183 km (0.092 R)
• M26: 19,661,499 km (0.115 R)
• M27: 21,867,469 km (0.03 R)
• M28: 22,688,462 km (0.062 R)
• M29: 24,710,277 km (0.077 R)
• M30: 27,445,674 km (0.052 R)
• M31: 30,376,446 km (0.075 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 19,076 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit