🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.7

Radius: 12.3

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.51 AU - 0.81 AU

Year: 370 Days

Day: 14.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,563,717 km

• M1: 153,637 km (0.105 R)
• M2: 1,405,771 km (0.116 R)
• M3: 1,828,684 km (0.095 R)
• M4: 2,382,346 km (0.093 R)
• M5: 2,982,084 km (0.096 R)
• M6: 3,945,644 km (0.099 R)
• M7: 4,528,477 km (0.12 R)
• M8: 5,044,889 km (0.112 R)
• M9: 5,583,741 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.7

Radius: 9.5

Gravity: 7.15 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.91 AU - 1.15 AU

Year: 722 Days

Day: 12.8 Hours

Environment

Temp: -180 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,563,717 km

• M1: 118,182 km (0.087 R)
• M2: 521,498 km (0.054 R)
• M3: 989,440 km (0.073 R)
• M4: 1,354,310 km (0.034 R)
• M5: 2,068,639 km (0.03 R)
• M6: 2,415,557 km (0.068 R)
• M7: 2,755,294 km (0.05 R)
• M8: 3,869,349 km (0.079 R)
• M9: 4,415,980 km (0.102 R)
• M10: 6,828,245 km (0.068 R)
• M11: 7,581,470 km (0.069 R)
• M12: 7,930,782 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 257.7

Radius: 14.9

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.13 AU - 1.17 AU

Year: 851 Days

Day: 5.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,563,717 km

• M1: 186,249 km (0.032 R)
• M2: 798,553 km (0.062 R)
• M3: 3,088,747 km (0.119 R)
• M4: 3,594,388 km (0.102 R)
• M5: 4,443,057 km (0.117 R)
• M6: 5,091,564 km (0.117 R)
• M7: 6,090,728 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.9

Radius: 12.7

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.64 AU - 1.64 AU

Year: 1450 Days

Day: 5.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,563,717 km

• M1: 178,919 km (0.106 R)
• M2: 1,051,673 km (0.07 R)
• M3: 1,637,947 km (0.069 R)
• M4: 2,588,941 km (0.093 R)
• M5: 3,153,822 km (0.049 R)
• M6: 3,800,085 km (0.074 R)
• M7: 5,828,632 km (0.108 R)
• M8: 7,431,573 km (0.116 R)
• M9: 7,913,578 km (0.11 R)
• M10: 8,443,304 km (0.036 R)
• M11: 9,574,264 km (0.087 R)
• M12: 10,299,813 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.1

Radius: 13.7

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.92 AU - 2.7 AU

Year: 2423 Days

Day: 8.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,563,717 km

• M1: 171,290 km (0.093 R)
• M2: 656,585 km (0.059 R)
• M3: 1,227,002 km (0.101 R)
• M4: 2,385,039 km (0.113 R)
• M5: 3,396,620 km (0.119 R)
• M6: 4,720,411 km (0.12 R)
• M7: 5,795,272 km (0.11 R)
• M8: 7,258,489 km (0.091 R)
• M9: 7,797,340 km (0.117 R)
• M10: 8,955,677 km (0.111 R)
• M11: 9,471,041 km (0.046 R)
• M12: 10,599,009 km (0.111 R)
• M13: 11,059,023 km (0.072 R)
• M14: 11,612,535 km (0.116 R)
• M15: 13,165,211 km (0.071 R)
• M16: 14,290,037 km (0.057 R)
• M17: 14,899,649 km (0.11 R)
• M18: 16,071,000 km (0.099 R)
• M19: 17,145,562 km (0.098 R)
• M20: 17,673,792 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.3

Radius: 13.6

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 3.3 AU - 4.28 AU

Year: 5093 Days

Day: 13.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 79,563,717 km

• M1: 173,384 km (0.081 R)
• M2: 808,277 km (0.118 R)
• M3: 1,719,179 km (0.07 R)
• M4: 2,985,674 km (0.027 R)
• M5: 3,427,586 km (0.119 R)
• M6: 5,051,172 km (0.091 R)
• M7: 5,738,874 km (0.09 R)
• M8: 8,324,374 km (0.12 R)
• M9: 9,401,329 km (0.098 R)
• M10: 9,993,886 km (0.043 R)
• M11: 10,993,648 km (0.113 R)
• M12: 11,651,729 km (0.081 R)
• M13: 12,429,189 km (0.105 R)
• M14: 12,998,559 km (0.119 R)
• M15: 15,023,516 km (0.102 R)
• M16: 17,018,852 km (0.083 R)
• M17: 19,690,670 km (0.086 R)
• M18: 20,465,438 km (0.106 R)
• M19: 23,481,181 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.5

Radius: 3.6

Gravity: 42.09 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 6.11 AU - 8.91 AU

Year: 14206 Days

Day: 23 Hours

Environment

Temp: -232 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 79,563,717 km

• M1: 48,320 km (0.102 R)
• M2: 162,463 km (0.098 R)
• M3: 377,435 km (0.09 R)
• M4: 617,989 km (0.089 R)
• M5: 839,842 km (0.073 R)
• M6: 1,076,955 km (0.095 R)
• M7: 2,956,054 km (0.109 R)
• M8: 3,996,806 km (0.096 R)
• M9: 4,791,171 km (0.114 R)
• M10: 5,577,009 km (0.085 R)
• M11: 6,095,216 km (0.107 R)
• M12: 7,099,466 km (0.05 R)
• M13: 7,978,653 km (0.119 R)
• M14: 9,583,688 km (0.092 R)
• M15: 10,543,957 km (0.105 R)
• M16: 11,047,354 km (0.093 R)
• M17: 13,222,058 km (0.037 R)
• M18: 13,479,965 km (0.077 R)
• M19: 14,682,433 km (0.061 R)
• M20: 15,028,752 km (0.086 R)
• M21: 24,964,444 km (0.104 R)
• M22: 25,756,565 km (0.106 R)
• M23: 27,495,041 km (0.09 R)
• M24: 28,339,671 km (0.075 R)
• M25: 32,471,564 km (0.08 R)
• M26: 36,228,266 km (0.058 R)
• M27: 36,733,159 km (0.071 R)
• M28: 40,534,590 km (0.091 R)
• M29: 41,627,702 km (0.103 R)
• M30: 42,600,088 km (0.11 R)
• M31: 44,302,063 km (0.118 R)
• M32: 45,754,658 km (0.109 R)
• M33: 49,834,491 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 948.6

Radius: 6.8

Gravity: 20.51 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 7.5 AU - 10.2 AU

Year: 18173 Days

Day: 19.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 79,563,717 km

• M1: 86,168 km (0.087 R)
• M2: 321,935 km (0.049 R)
• M3: 863,479 km (0.08 R)
• M4: 1,169,556 km (0.065 R)
• M5: 1,666,371 km (0.088 R)
• M6: 2,273,738 km (0.102 R)
• M7: 4,377,234 km (0.118 R)
• M8: 5,133,152 km (0.071 R)
• M9: 5,847,781 km (0.069 R)
• M10: 9,151,949 km (0.109 R)
• M11: 10,079,157 km (0.087 R)
• M12: 13,307,927 km (0.108 R)
• M13: 21,411,644 km (0.107 R)
• M14: 26,307,833 km (0.091 R)
• M15: 43,586,985 km (0.093 R)
• M16: 44,551,293 km (0.1 R)
• M17: 53,512,206 km (0.1 R)
• M18: 60,970,407 km (0.05 R)
• M19: 66,520,937 km (0.111 R)
• M20: 74,889,741 km (0.12 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 11,619 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit