🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.3

Radius: 14.8

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.45 AU - 0.63 AU

Year: 274 Days

Day: 11.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 86,210,479 km

• M1: 184,005 km (0.085 R)
• M2: 693,237 km (0.095 R)
• M3: 1,230,293 km (0.091 R)
• M4: 1,734,737 km (0.09 R)
• M5: 2,404,038 km (0.091 R)
• M6: 3,323,317 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.5

Radius: 14

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.54 AU - 0.64 AU

Year: 313 Days

Day: 11.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,210,479 km

• M1: 174,132 km (0.103 R)
• M2: 654,191 km (0.057 R)
• M3: 1,463,666 km (0.095 R)
• M4: 2,118,755 km (0.119 R)
• M5: 2,677,503 km (0.038 R)
• M6: 3,204,386 km (0.087 R)
• M7: 3,946,541 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.9

Radius: 9.2

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.65 AU - 0.89 AU

Year: 466 Days

Day: 14.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 86,210,479 km

• M1: 115,639 km (0.086 R)
• M2: 751,879 km (0.098 R)
• M3: 1,363,136 km (0.08 R)
• M4: 2,232,449 km (0.106 R)
• M5: 2,936,307 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.3

Radius: 14.7

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.02 AU - 1.28 AU

Year: 851 Days

Day: 12.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 86,210,479 km

• M1: 182,809 km (0.113 R)
• M2: 704,456 km (0.118 R)
• M3: 1,185,414 km (0.075 R)
• M4: 1,833,172 km (0.101 R)
• M5: 2,335,971 km (0.062 R)
• M6: 2,797,331 km (0.06 R)
• M7: 4,202,952 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.4

Radius: 15

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.36 AU - 1.42 AU

Year: 1131 Days

Day: 5.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,210,479 km

• M1: 186,549 km (0.069 R)
• M2: 727,046 km (0.08 R)
• M3: 1,276,967 km (0.118 R)
• M4: 1,850,825 km (0.107 R)
• M5: 2,463,428 km (0.086 R)
• M6: 2,941,543 km (0.064 R)
• M7: 3,681,903 km (0.084 R)
• M8: 4,732,379 km (0.072 R)
• M9: 5,423,222 km (0.075 R)
• M10: 7,639,514 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.2

Radius: 3.1

Gravity: 37.38 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 6.18 AU - 8.02 AU

Year: 13059 Days

Day: 16 Hours

Environment

Temp: -227 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,210,479 km

• M1: 39,045 km (0.104 R)
• M2: 370,255 km (0.102 R)
• M3: 684,410 km (0.108 R)
• M4: 946,805 km (0.07 R)
• M5: 1,152,352 km (0.12 R)
• M6: 2,227,363 km (0.059 R)
• M7: 2,452,358 km (0.108 R)
• M8: 2,590,437 km (0.052 R)
• M9: 3,172,372 km (0.094 R)
• M10: 4,890,504 km (0.113 R)
• M11: 5,367,871 km (0.066 R)
• M12: 5,533,775 km (0.071 R)
• M13: 5,840,899 km (0.105 R)
• M14: 6,451,707 km (0.108 R)
• M15: 9,660,133 km (0.075 R)
• M16: 12,247,877 km (0.087 R)
• M17: 16,904,260 km (0.1 R)
• M18: 18,061,998 km (0.059 R)
• M19: 19,582,212 km (0.08 R)
• M20: 26,516,671 km (0.085 R)
• M21: 28,776,646 km (0.111 R)
• M22: 36,085,101 km (0.116 R)
• M23: 38,362,429 km (0.116 R)
• M24: 38,484,800 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 456.7

Radius: 4.3

Gravity: 24.7 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.77 AU - 8.61 AU

Year: 14720 Days

Day: 18.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 86,210,479 km

• M1: 58,792 km (0.111 R)
• M2: 208,539 km (0.118 R)
• M3: 353,649 km (0.082 R)
• M4: 811,120 km (0.085 R)
• M5: 1,179,280 km (0.103 R)
• M6: 1,574,218 km (0.115 R)
• M7: 1,946,268 km (0.084 R)
• M8: 2,143,737 km (0.091 R)
• M9: 2,885,294 km (0.106 R)
• M10: 3,047,309 km (0.089 R)
• M11: 3,922,456 km (0.114 R)
• M12: 4,478,511 km (0.097 R)
• M13: 5,426,214 km (0.112 R)
• M14: 6,461,132 km (0.101 R)
• M15: 6,658,900 km (0.047 R)
• M16: 7,024,966 km (0.095 R)
• M17: 7,620,964 km (0.051 R)
• M18: 8,577,344 km (0.102 R)
• M19: 9,816,762 km (0.083 R)
• M20: 12,040,684 km (0.101 R)
• M21: 12,830,112 km (0.08 R)
• M22: 16,044,372 km (0.114 R)
• M23: 16,775,606 km (0.065 R)
• M24: 19,102,152 km (0.116 R)
• M25: 19,427,827 km (0.062 R)
• M26: 20,681,906 km (0.049 R)
• M27: 21,811,519 km (0.08 R)
• M28: 26,742,564 km (0.104 R)
• M29: 27,977,345 km (0.071 R)
• M30: 28,821,227 km (0.045 R)
• M31: 29,573,554 km (0.111 R)
• M32: 33,650,395 km (0.091 R)
• M33: 35,454,097 km (0.102 R)
• M34: 40,044,059 km (0.054 R)
• M35: 45,590,849 km (0.113 R)
• M36: 48,697,996 km (0.077 R)
• M37: 49,001,082 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 735.1

Radius: 6.6

Gravity: 16.88 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.19 AU - 11.69 AU

Year: 23284 Days

Day: 25 Hours

Environment

Temp: -244 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 86,210,479 km

• M1: 82,428 km (0.114 R)
• M2: 289,322 km (0.064 R)
• M3: 857,196 km (0.083 R)
• M4: 1,130,062 km (0.116 R)
• M5: 1,796,222 km (0.093 R)
• M6: 2,034,232 km (0.072 R)
• M7: 2,338,514 km (0.077 R)
• M8: 2,697,848 km (0.092 R)
• M9: 3,011,555 km (0.111 R)
• M10: 4,033,907 km (0.083 R)
• M11: 4,444,702 km (0.032 R)
• M12: 5,430,552 km (0.109 R)
• M13: 8,248,677 km (0.072 R)
• M14: 13,050,320 km (0.105 R)
• M15: 14,568,589 km (0.075 R)
• M16: 16,541,485 km (0.115 R)
• M17: 21,109,456 km (0.077 R)
• M18: 23,735,049 km (0.082 R)
• M19: 25,182,857 km (0.102 R)
• M20: 26,453,092 km (0.091 R)
• M21: 28,008,611 km (0.088 R)
• M22: 29,497,708 km (0.1 R)
• M23: 40,328,893 km (0.113 R)
• M24: 44,677,853 km (0.115 R)
• M25: 47,223,859 km (0.094 R)
• M26: 47,744,460 km (0.075 R)
• M27: 55,055,906 km (0.071 R)
• M28: 58,776,106 km (0.081 R)
• M29: 59,782,301 km (0.09 R)
• M30: 60,799,866 km (0.108 R)
• M31: 70,483,486 km (0.045 R)
• M32: 72,536,118 km (0.087 R)
• M33: 85,437,588 km (0.078 R)
• M34: 85,952,354 km (0.1 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 249 - 18,471 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit