🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.6

Radius: 14.1

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.69 AU - 0.71 AU

Year: 384 Days

Day: 8.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 57,882,962 km

• M1: 175,329 km (0.095 R)
• M2: 933,640 km (0.072 R)
• M3: 1,505,104 km (0.079 R)
• M4: 2,322,657 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.9

Radius: 13.6

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.69 AU - 0.83 AU

Year: 435 Days

Day: 10.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,882,962 km

• M1: 169,195 km (0.098 R)
• M2: 613,800 km (0.093 R)
• M3: 1,064,688 km (0.118 R)
• M4: 1,525,599 km (0.067 R)
• M5: 2,326,696 km (0.033 R)
• M6: 2,881,554 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.8

Radius: 8.1

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.14 AU - 3.5 AU

Year: 3107 Days

Day: 13.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 57,882,962 km

• M1: 100,679 km (0.057 R)
• M2: 355,145 km (0.103 R)
• M3: 926,011 km (0.096 R)
• M4: 1,211,593 km (0.116 R)
• M5: 1,578,258 km (0.111 R)
• M6: 2,287,950 km (0.099 R)
• M7: 2,952,613 km (0.098 R)
• M8: 3,564,468 km (0.057 R)
• M9: 5,411,853 km (0.075 R)
• M10: 7,854,038 km (0.072 R)
• M11: 8,773,915 km (0.057 R)
• M12: 10,867,238 km (0.083 R)
• M13: 11,834,089 km (0.117 R)
• M14: 12,271,813 km (0.117 R)
• M15: 13,460,667 km (0.047 R)
• M16: 13,793,522 km (0.097 R)
• M17: 15,592,586 km (0.117 R)
• M18: 16,118,871 km (0.075 R)
• M19: 16,548,367 km (0.066 R)
• M20: 17,262,547 km (0.116 R)
• M21: 17,882,780 km (0.086 R)
• M22: 18,227,304 km (0.107 R)
• M23: 18,811,334 km (0.101 R)
• M24: 20,388,395 km (0.063 R)
• M25: 20,890,894 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.3

Radius: 9.3

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.18 AU - 4.48 AU

Year: 4917 Days

Day: 6.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,882,962 km

• M1: 118,781 km (0.098 R)
• M2: 411,544 km (0.1 R)
• M3: 794,365 km (0.094 R)
• M4: 1,521,710 km (0.07 R)
• M5: 2,673,912 km (0.099 R)
• M6: 3,345,906 km (0.075 R)
• M7: 5,437,883 km (0.03 R)
• M8: 5,763,707 km (0.071 R)
• M9: 6,276,827 km (0.116 R)
• M10: 6,820,167 km (0.07 R)
• M11: 9,389,361 km (0.106 R)
• M12: 10,386,431 km (0.102 R)
• M13: 11,540,877 km (0.106 R)
• M14: 11,989,372 km (0.051 R)
• M15: 12,778,650 km (0.043 R)
• M16: 13,113,600 km (0.107 R)
• M17: 17,486,046 km (0.12 R)
• M18: 18,622,541 km (0.086 R)
• M19: 19,680,348 km (0.103 R)
• M20: 20,385,851 km (0.096 R)
• M21: 22,052,073 km (0.109 R)
• M22: 22,534,376 km (0.112 R)
• M23: 22,953,400 km (0.099 R)
• M24: 24,314,740 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.1

Radius: 11.6

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.33 AU - 4.81 AU

Year: 6409 Days

Day: 11.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 69.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,882,962 km

• M1: 150,495 km (0.058 R)
• M2: 549,772 km (0.062 R)
• M3: 1,273,826 km (0.084 R)
• M4: 1,957,039 km (0.067 R)
• M5: 2,427,824 km (0.084 R)
• M6: 2,871,830 km (0.078 R)
• M7: 3,580,924 km (0.04 R)
• M8: 4,051,709 km (0.081 R)
• M9: 4,563,782 km (0.079 R)
• M10: 5,347,825 km (0.108 R)
• M11: 6,810,742 km (0.093 R)
• M12: 7,310,549 km (0.104 R)
• M13: 10,106,683 km (0.052 R)
• M14: 12,144,505 km (0.058 R)
• M15: 12,740,652 km (0.118 R)
• M16: 15,964,337 km (0.077 R)
• M17: 18,234,634 km (0.103 R)
• M18: 19,509,058 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.1

Radius: 11.7

Gravity: 7.06 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.49 AU - 5.77 AU

Year: 8763 Days

Day: 14.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 169.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,882,962 km

• M1: 156,629 km (0.058 R)
• M2: 544,087 km (0.051 R)
• M3: 930,948 km (0.086 R)
• M4: 2,435,453 km (0.079 R)
• M5: 3,310,302 km (0.109 R)
• M6: 4,441,411 km (0.081 R)
• M7: 8,222,497 km (0.11 R)
• M8: 8,764,790 km (0.103 R)
• M9: 9,234,826 km (0.087 R)
• M10: 11,956,311 km (0.115 R)
• M11: 15,039,672 km (0.064 R)
• M12: 23,436,601 km (0.037 R)
• M13: 32,353,681 km (0.066 R)
• M14: 35,096,558 km (0.083 R)
• M15: 37,497,903 km (0.082 R)
• M16: 39,369,372 km (0.097 R)
• M17: 41,696,367 km (0.111 R)
• M18: 47,479,971 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.6

Radius: 5.2

Gravity: 23.8 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.97 AU - 8.19 AU

Year: 13690 Days

Day: 21 Hours

Environment

Temp: -220 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,882,962 km

• M1: 64,776 km (0.103 R)
• M2: 255,962 km (0.107 R)
• M3: 493,374 km (0.098 R)
• M4: 1,152,801 km (0.04 R)
• M5: 1,770,491 km (0.118 R)
• M6: 2,501,426 km (0.067 R)
• M7: 3,574,192 km (0.037 R)
• M8: 4,471,929 km (0.11 R)
• M9: 4,791,171 km (0.096 R)
• M10: 5,194,038 km (0.095 R)
• M11: 5,803,350 km (0.073 R)
• M12: 6,300,314 km (0.036 R)
• M13: 7,466,729 km (0.098 R)
• M14: 9,684,218 km (0.095 R)
• M15: 13,645,271 km (0.079 R)
• M16: 17,144,664 km (0.093 R)
• M17: 28,355,379 km (0.084 R)
• M18: 28,788,465 km (0.116 R)
• M19: 37,876,236 km (0.118 R)
• M20: 40,414,014 km (0.077 R)
• M21: 41,100,220 km (0.08 R)
• M22: 53,325,059 km (0.069 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 10,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit