🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.41 AU - 0.69 AU

Year: 263 Days

Day: 41.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,827,988 km

• M1: 615,745 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976

Radius: 8.8

Gravity: 12.6 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.63 AU - 0.75 AU

Year: 370 Days

Day: 11.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,827,988 km

• M1: 109,506 km (0.034 R)
• M2: 397,781 km (0.033 R)
• M3: 700,716 km (0.093 R)
• M4: 1,175,690 km (0.053 R)
• M5: 1,709,455 km (0.114 R)
• M6: 2,024,508 km (0.111 R)
• M7: 2,814,983 km (0.072 R)
• M8: 3,545,170 km (0.112 R)
• M9: 4,353,448 km (0.09 R)
• M10: 5,360,989 km (0.049 R)
• M11: 5,729,150 km (0.079 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.6

Radius: 11.4

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.75 AU - 0.81 AU

Year: 445 Days

Day: 6.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,827,988 km

• M1: 141,819 km (0.063 R)
• M2: 530,324 km (0.103 R)
• M3: 889,210 km (0.111 R)
• M4: 1,425,369 km (0.097 R)
• M5: 2,346,742 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.1

Radius: 8.7

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.12 AU - 1.3 AU

Year: 859 Days

Day: 13.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,827,988 km

• M1: 108,309 km (0.093 R)
• M2: 394,789 km (0.089 R)
• M3: 772,823 km (0.117 R)
• M4: 1,430,156 km (0.103 R)
• M5: 1,701,676 km (0.117 R)
• M6: 1,990,549 km (0.116 R)
• M7: 2,410,470 km (0.028 R)
• M8: 2,722,681 km (0.116 R)
• M9: 3,544,871 km (0.081 R)
• M10: 3,978,555 km (0.111 R)
• M11: 4,585,474 km (0.108 R)
• M12: 5,134,498 km (0.077 R)
• M13: 5,781,060 km (0.044 R)
• M14: 6,639,154 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.2

Radius: 9.5

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 1.69 AU - 2.57 AU

Year: 2007 Days

Day: 5.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,827,988 km

• M1: 118,332 km (0.037 R)
• M2: 417,228 km (0.116 R)
• M3: 796,459 km (0.094 R)
• M4: 1,469,799 km (0.09 R)
• M5: 2,174,405 km (0.098 R)
• M6: 2,853,430 km (0.05 R)
• M7: 3,290,256 km (0.119 R)
• M8: 4,689,893 km (0.068 R)
• M9: 5,148,112 km (0.104 R)
• M10: 5,499,966 km (0.12 R)
• M11: 6,130,072 km (0.074 R)
• M12: 7,259,536 km (0.077 R)
• M13: 8,076,191 km (0.082 R)
• M14: 8,921,718 km (0.073 R)
• M15: 9,593,711 km (0.074 R)
• M16: 10,788,250 km (0.084 R)
• M17: 12,466,290 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 987.4

Radius: 13.6

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.28 AU - 2.48 AU

Year: 2371 Days

Day: 11.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 59,827,988 km

• M1: 169,195 km (0.12 R)
• M2: 592,258 km (0.071 R)
• M3: 1,153,100 km (0.075 R)
• M4: 1,597,406 km (0.116 R)
• M5: 2,589,390 km (0.073 R)
• M6: 3,028,459 km (0.051 R)
• M7: 4,203,700 km (0.05 R)
• M8: 4,792,667 km (0.118 R)
• M9: 5,612,463 km (0.113 R)
• M10: 9,415,092 km (0.074 R)
• M11: 10,701,783 km (0.111 R)
• M12: 12,318,487 km (0.099 R)
• M13: 13,483,256 km (0.091 R)
• M14: 16,876,585 km (0.104 R)
• M15: 18,369,422 km (0.075 R)
• M16: 19,060,564 km (0.07 R)
• M17: 19,590,140 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 532.9

Radius: 8.1

Gravity: 8.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 3.86 AU - 4.7 AU

Year: 5717 Days

Day: 9 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 59,827,988 km

• M1: 100,979 km (0.096 R)
• M2: 357,689 km (0.111 R)
• M3: 689,945 km (0.11 R)
• M4: 1,332,767 km (0.078 R)
• M5: 1,748,500 km (0.12 R)
• M6: 2,008,950 km (0.071 R)
• M7: 2,327,144 km (0.045 R)
• M8: 2,970,565 km (0.116 R)
• M9: 3,884,010 km (0.075 R)
• M10: 4,813,910 km (0.069 R)
• M11: 5,163,819 km (0.113 R)
• M12: 5,914,950 km (0.11 R)
• M13: 6,412,214 km (0.08 R)
• M14: 6,836,473 km (0.102 R)
• M15: 8,412,636 km (0.093 R)
• M16: 9,285,540 km (0.094 R)
• M17: 10,979,287 km (0.08 R)
• M18: 12,118,475 km (0.113 R)
• M19: 13,864,581 km (0.105 R)
• M20: 14,574,573 km (0.079 R)
• M21: 14,966,669 km (0.1 R)
• M22: 16,007,571 km (0.081 R)
• M23: 17,848,372 km (0.071 R)
• M24: 19,351,981 km (0.113 R)
• M25: 20,307,462 km (0.055 R)
• M26: 21,294,210 km (0.054 R)
• M27: 22,386,424 km (0.083 R)
• M28: 23,059,465 km (0.063 R)
• M29: 23,668,926 km (0.037 R)
• M30: 26,962,323 km (0.098 R)
• M31: 28,153,571 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 998.4

Radius: 7.5

Gravity: 17.75 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 6.32 AU - 7.36 AU

Year: 11550 Days

Day: 22.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 59,827,988 km

• M1: 95,443 km (0.086 R)
• M2: 483,949 km (0.119 R)
• M3: 773,720 km (0.104 R)
• M4: 1,015,470 km (0.04 R)
• M5: 1,308,682 km (0.092 R)
• M6: 1,738,626 km (0.056 R)
• M7: 2,032,437 km (0.073 R)
• M8: 3,118,966 km (0.083 R)
• M9: 3,396,919 km (0.099 R)
• M10: 4,362,723 km (0.074 R)
• M11: 5,286,490 km (0.028 R)
• M12: 7,604,957 km (0.055 R)
• M13: 8,017,099 km (0.115 R)
• M14: 8,347,860 km (0.1 R)
• M15: 10,195,095 km (0.11 R)
• M16: 12,237,255 km (0.086 R)
• M17: 14,055,917 km (0.103 R)
• M18: 16,802,683 km (0.086 R)
• M19: 18,220,572 km (0.095 R)
• M20: 19,209,115 km (0.108 R)
• M21: 20,059,878 km (0.074 R)
• M22: 20,320,028 km (0.111 R)
• M23: 20,670,237 km (0.117 R)
• M24: 25,394,837 km (0.095 R)
• M25: 26,522,954 km (0.12 R)
• M26: 27,898,806 km (0.091 R)
• M27: 31,721,331 km (0.12 R)
• M28: 34,745,003 km (0.12 R)
• M29: 34,994,832 km (0.108 R)
• M30: 38,754,525 km (0.08 R)
• M31: 48,763,969 km (0.096 R)
• M32: 52,121,245 km (0.036 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 15,627 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit