🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.4

Radius: 14.8

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.62 AU - 0.86 AU

Year: 432 Days

Day: 13.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,063,004 km

• M1: 184,454 km (0.105 R)
• M2: 773,271 km (0.115 R)
• M3: 1,258,118 km (0.077 R)
• M4: 2,340,010 km (0.074 R)
• M5: 3,051,647 km (0.111 R)
• M6: 4,474,024 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.9

Radius: 12.6

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.04 AU - 1.06 AU

Year: 730 Days

Day: 11.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 40,063,004 km

• M1: 156,779 km (0.12 R)
• M2: 889,509 km (0.101 R)
• M3: 1,350,570 km (0.103 R)
• M4: 1,903,334 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.1

Radius: 13.2

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.27 AU - 1.61 AU

Year: 1172 Days

Day: 8.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,063,004 km

• M1: 164,857 km (0.105 R)
• M2: 654,191 km (0.081 R)
• M3: 1,111,213 km (0.089 R)
• M4: 1,830,779 km (0.077 R)
• M5: 3,360,567 km (0.029 R)
• M6: 3,822,974 km (0.092 R)
• M7: 4,390,249 km (0.111 R)
• M8: 5,328,826 km (0.092 R)
• M9: 7,534,646 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.9

Radius: 13.8

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.47 AU - 2.57 AU

Year: 2713 Days

Day: 14.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,063,004 km

• M1: 171,589 km (0.115 R)
• M2: 651,648 km (0.06 R)
• M3: 1,828,984 km (0.12 R)
• M4: 2,655,512 km (0.095 R)
• M5: 3,100,715 km (0.101 R)
• M6: 4,876,442 km (0.111 R)
• M7: 7,340,020 km (0.056 R)
• M8: 8,382,417 km (0.1 R)
• M9: 9,185,758 km (0.12 R)
• M10: 9,691,997 km (0.08 R)
• M11: 11,516,044 km (0.119 R)
• M12: 12,145,402 km (0.101 R)
• M13: 12,964,301 km (0.037 R)
• M14: 14,083,592 km (0.085 R)
• M15: 15,690,872 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.6

Radius: 11.1

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.26 AU - 2.96 AU

Year: 2860 Days

Day: 14.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,063,004 km

• M1: 138,079 km (0.045 R)
• M2: 870,510 km (0.101 R)
• M3: 1,326,933 km (0.073 R)
• M4: 1,777,821 km (0.064 R)
• M5: 2,330,136 km (0.109 R)
• M6: 3,800,384 km (0.078 R)
• M7: 4,181,859 km (0.108 R)
• M8: 5,608,574 km (0.119 R)
• M9: 6,294,929 km (0.086 R)
• M10: 7,614,382 km (0.116 R)
• M11: 8,796,355 km (0.051 R)
• M12: 9,216,276 km (0.111 R)
• M13: 10,832,531 km (0.058 R)
• M14: 11,812,846 km (0.072 R)
• M15: 12,324,770 km (0.054 R)
• M16: 13,347,272 km (0.111 R)
• M17: 14,329,382 km (0.05 R)
• M18: 15,866,201 km (0.116 R)
• M19: 16,968,138 km (0.081 R)
• M20: 18,345,486 km (0.088 R)
• M21: 19,323,707 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.8

Radius: 12

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 2.83 AU - 3.19 AU

Year: 3542 Days

Day: 11.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,063,004 km

• M1: 149,299 km (0.058 R)
• M2: 711,637 km (0.073 R)
• M3: 1,137,542 km (0.1 R)
• M4: 1,818,961 km (0.113 R)
• M5: 3,037,884 km (0.079 R)
• M6: 3,428,783 km (0.045 R)
• M7: 4,205,795 km (0.051 R)
• M8: 5,496,974 km (0.118 R)
• M9: 6,504,067 km (0.051 R)
• M10: 6,945,979 km (0.094 R)
• M11: 8,022,186 km (0.085 R)
• M12: 8,775,860 km (0.092 R)
• M13: 9,206,552 km (0.091 R)
• M14: 10,071,527 km (0.102 R)
• M15: 11,919,958 km (0.117 R)
• M16: 14,326,090 km (0.115 R)
• M17: 15,280,974 km (0.077 R)
• M18: 16,011,311 km (0.11 R)
• M19: 17,094,997 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.2

Radius: 12.8

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.33 AU - 6.29 AU

Year: 8299 Days

Day: 12.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,063,004 km

• M1: 172,337 km (0.025 R)
• M2: 596,148 km (0.082 R)
• M3: 1,231,639 km (0.089 R)
• M4: 1,918,144 km (0.059 R)
• M5: 3,279,335 km (0.034 R)
• M6: 4,551,964 km (0.114 R)
• M7: 4,991,782 km (0.073 R)
• M8: 6,306,448 km (0.112 R)
• M9: 6,968,568 km (0.115 R)
• M10: 10,588,388 km (0.036 R)
• M11: 11,525,020 km (0.086 R)
• M12: 12,743,644 km (0.037 R)
• M13: 13,924,570 km (0.041 R)
• M14: 15,241,779 km (0.107 R)
• M15: 16,503,487 km (0.111 R)
• M16: 19,083,602 km (0.071 R)
• M17: 23,012,491 km (0.076 R)
• M18: 23,701,539 km (0.071 R)
• M19: 25,030,417 km (0.104 R)
• M20: 26,408,363 km (0.069 R)
• M21: 27,354,868 km (0.073 R)
• M22: 30,329,921 km (0.083 R)
• M23: 31,158,394 km (0.106 R)
• M24: 32,215,153 km (0.088 R)
• M25: 37,267,971 km (0.11 R)
• M26: 38,578,897 km (0.091 R)
• M27: 39,674,253 km (0.115 R)
• M28: 40,167,627 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 161.2

Radius: 5.2

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.44 AU - 9.84 AU

Year: 15752 Days

Day: 15.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 40,063,004 km

• M1: 68,516 km (0.078 R)
• M2: 330,462 km (0.095 R)
• M3: 767,736 km (0.088 R)
• M4: 1,123,181 km (0.04 R)
• M5: 1,528,441 km (0.111 R)
• M6: 2,401,046 km (0.069 R)
• M7: 2,586,398 km (0.119 R)
• M8: 3,402,604 km (0.056 R)
• M9: 5,246,547 km (0.076 R)
• M10: 8,490,128 km (0.113 R)
• M11: 9,368,567 km (0.109 R)
• M12: 9,876,900 km (0.071 R)
• M13: 10,648,526 km (0.102 R)
• M14: 15,817,282 km (0.108 R)
• M15: 16,404,753 km (0.046 R)
• M16: 16,670,439 km (0.106 R)
• M17: 17,210,337 km (0.102 R)
• M18: 19,785,366 km (0.051 R)
• M19: 20,314,344 km (0.119 R)
• M20: 21,400,275 km (0.104 R)
• M21: 21,637,836 km (0.088 R)
• M22: 21,957,527 km (0.099 R)
• M23: 24,977,010 km (0.091 R)
• M24: 27,883,697 km (0.039 R)
• M25: 30,206,204 km (0.114 R)
• M26: 30,806,390 km (0.076 R)
• M27: 31,312,630 km (0.109 R)
• M28: 34,142,124 km (0.086 R)
• M29: 34,793,323 km (0.112 R)
• M30: 38,173,637 km (0.032 R)
• M31: 38,406,411 km (0.069 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: 375 - 10,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit