🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.7

Radius: 9.5

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.66 AU - 0.94 AU

Year: 469 Days

Day: 6.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,548,826 km

• M1: 118,332 km (0.085 R)
• M2: 414,536 km (0.049 R)
• M3: 717,172 km (0.111 R)
• M4: 1,018,462 km (0.1 R)
• M5: 1,689,259 km (0.065 R)
• M6: 2,009,997 km (0.111 R)
• M7: 2,353,922 km (0.048 R)
• M8: 3,118,816 km (0.106 R)
• M9: 3,654,526 km (0.11 R)
• M10: 4,131,594 km (0.105 R)
• M11: 4,453,977 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.9

Radius: 9.6

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.58 AU - 1.9 AU

Year: 1506 Days

Day: 14.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,548,826 km

• M1: 119,977 km (0.097 R)
• M2: 441,763 km (0.051 R)
• M3: 797,357 km (0.108 R)
• M4: 1,282,802 km (0.052 R)
• M5: 1,787,545 km (0.066 R)
• M6: 2,603,751 km (0.075 R)
• M7: 2,984,178 km (0.067 R)
• M8: 3,684,296 km (0.077 R)
• M9: 4,568,869 km (0.03 R)
• M10: 5,680,231 km (0.095 R)
• M11: 6,152,512 km (0.045 R)
• M12: 8,640,623 km (0.09 R)
• M13: 10,295,026 km (0.103 R)
• M14: 10,855,121 km (0.07 R)
• M15: 11,546,412 km (0.041 R)
• M16: 14,177,091 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.7

Radius: 15

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.99 AU - 2.69 AU

Year: 2348 Days

Day: 11.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,548,826 km

• M1: 186,549 km (0.065 R)
• M2: 671,844 km (0.099 R)
• M3: 1,178,981 km (0.048 R)
• M4: 1,772,735 km (0.092 R)
• M5: 2,963,085 km (0.104 R)
• M6: 3,569,854 km (0.105 R)
• M7: 4,069,361 km (0.032 R)
• M8: 4,992,979 km (0.043 R)
• M9: 5,810,082 km (0.079 R)
• M10: 7,425,590 km (0.091 R)
• M11: 8,035,799 km (0.062 R)
• M12: 12,999,457 km (0.084 R)
• M13: 14,726,714 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.9

Radius: 14.7

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.86 AU - 4.8 AU

Year: 5911 Days

Day: 10 Hours

Environment

Temp: -214 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,548,826 km

• M1: 186,698 km (0.038 R)
• M2: 653,892 km (0.065 R)
• M3: 1,473,389 km (0.109 R)
• M4: 4,220,754 km (0.098 R)
• M5: 5,130,459 km (0.085 R)
• M6: 6,108,081 km (0.117 R)
• M7: 8,732,327 km (0.086 R)
• M8: 12,367,854 km (0.029 R)
• M9: 13,862,337 km (0.06 R)
• M10: 15,197,348 km (0.081 R)
• M11: 16,038,537 km (0.094 R)
• M12: 19,783,122 km (0.11 R)
• M13: 22,821,903 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 847.7

Radius: 14.2

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.01 AU - 5.43 AU

Year: 6727 Days

Day: 6.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,548,826 km

• M1: 177,124 km (0.113 R)
• M2: 693,536 km (0.085 R)
• M3: 1,708,856 km (0.083 R)
• M4: 2,386,385 km (0.112 R)
• M5: 2,967,573 km (0.097 R)
• M6: 3,481,591 km (0.087 R)
• M7: 4,581,136 km (0.058 R)
• M8: 5,034,417 km (0.1 R)
• M9: 6,267,403 km (0.113 R)
• M10: 6,937,152 km (0.108 R)
• M11: 7,615,130 km (0.115 R)
• M12: 8,461,854 km (0.111 R)
• M13: 9,281,201 km (0.088 R)
• M14: 10,391,068 km (0.109 R)
• M15: 14,614,066 km (0.113 R)
• M16: 15,477,695 km (0.043 R)
• M17: 16,703,799 km (0.038 R)
• M18: 21,942,866 km (0.1 R)
• M19: 23,075,472 km (0.037 R)
• M20: 25,020,244 km (0.102 R)
• M21: 25,721,708 km (0.1 R)
• M22: 26,526,395 km (0.06 R)
• M23: 28,092,236 km (0.063 R)
• M24: 29,718,963 km (0.096 R)
• M25: 31,610,479 km (0.054 R)
• M26: 32,845,708 km (0.118 R)
• M27: 39,039,210 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.8

Radius: 9.4

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 3.67 AU - 5.85 AU

Year: 6813 Days

Day: 8.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 70.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 45,548,826 km

• M1: 121,623 km (0.104 R)
• M2: 1,057,059 km (0.068 R)
• M3: 1,953,000 km (0.051 R)
• M4: 3,449,428 km (0.101 R)
• M5: 4,253,067 km (0.066 R)
• M6: 4,719,514 km (0.081 R)
• M7: 7,280,480 km (0.107 R)
• M8: 13,169,250 km (0.099 R)
• M9: 13,992,487 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.6

Radius: 10.4

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.23 AU - 6.09 AU

Year: 8834 Days

Day: 8.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 45,548,826 km

• M1: 130,150 km (0.04 R)
• M2: 538,253 km (0.114 R)
• M3: 932,444 km (0.118 R)
• M4: 1,412,503 km (0.089 R)
• M5: 1,815,819 km (0.099 R)
• M6: 2,262,369 km (0.099 R)
• M7: 3,248,667 km (0.096 R)
• M8: 4,553,759 km (0.111 R)
• M9: 6,348,036 km (0.111 R)
• M10: 7,384,600 km (0.11 R)
• M11: 7,728,226 km (0.119 R)
• M12: 8,365,513 km (0.094 R)
• M13: 10,777,928 km (0.047 R)
• M14: 11,121,405 km (0.07 R)
• M15: 12,731,377 km (0.083 R)
• M16: 13,734,730 km (0.097 R)
• M17: 16,732,372 km (0.11 R)
• M18: 18,698,387 km (0.11 R)
• M19: 20,587,958 km (0.037 R)
• M20: 25,514,665 km (0.055 R)
• M21: 28,203,537 km (0.114 R)
• M22: 30,000,955 km (0.113 R)
• M23: 32,480,839 km (0.109 R)
• M24: 33,095,687 km (0.069 R)
• M25: 34,773,427 km (0.063 R)
• M26: 35,633,166 km (0.064 R)
• M27: 37,395,279 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 191.8

Radius: 4.9

Gravity: 7.99 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.74 AU - 10.12 AU

Year: 17506 Days

Day: 18.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 45,548,826 km

• M1: 61,335 km (0.054 R)
• M2: 220,657 km (0.081 R)
• M3: 452,833 km (0.068 R)
• M4: 628,909 km (0.088 R)
• M5: 3,779,441 km (0.081 R)
• M6: 4,488,535 km (0.113 R)
• M7: 5,060,148 km (0.111 R)
• M8: 5,445,362 km (0.095 R)
• M9: 10,335,118 km (0.067 R)
• M10: 14,874,516 km (0.04 R)
• M11: 18,869,827 km (0.111 R)
• M12: 20,746,831 km (0.067 R)
• M13: 22,233,684 km (0.105 R)
• M14: 23,701,838 km (0.115 R)
• M15: 32,345,154 km (0.099 R)
• M16: 37,842,427 km (0.102 R)
• M17: 39,184,469 km (0.079 R)
• M18: 41,705,044 km (0.099 R)
• M19: 44,465,873 km (0.059 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 370 - 18,961 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit