🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.7

Radius: 13.1

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.9 AU - 1.04 AU

Year: 617 Days

Day: 12 Hours

Environment

Temp: -166 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,007,834 km

• M1: 162,912 km (0.081 R)
• M2: 594,801 km (0.097 R)
• M3: 1,256,323 km (0.092 R)
• M4: 2,103,346 km (0.085 R)
• M5: 2,721,185 km (0.111 R)
• M6: 3,128,690 km (0.057 R)
• M7: 4,069,062 km (0.106 R)
• M8: 4,589,962 km (0.105 R)
• M9: 5,294,867 km (0.105 R)
• M10: 6,365,838 km (0.098 R)
• M11: 7,243,828 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.3

Radius: 8

Gravity: 12.3 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.11 AU - 1.27 AU

Year: 838 Days

Day: 13.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 65,007,834 km

• M1: 99,483 km (0.112 R)
• M2: 372,200 km (0.097 R)
• M3: 708,496 km (0.072 R)
• M4: 1,191,996 km (0.113 R)
• M5: 1,589,777 km (0.111 R)
• M6: 1,927,718 km (0.05 R)
• M7: 2,280,919 km (0.094 R)
• M8: 2,749,459 km (0.071 R)
• M9: 3,816,990 km (0.038 R)
• M10: 6,194,997 km (0.05 R)
• M11: 8,493,120 km (0.057 R)
• M12: 9,001,902 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.9

Radius: 13.8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.16 AU - 1.6 AU

Year: 1047 Days

Day: 5.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,007,834 km

• M1: 171,589 km (0.104 R)
• M2: 932,743 km (0.119 R)
• M3: 1,562,251 km (0.099 R)
• M4: 2,079,111 km (0.114 R)
• M5: 2,535,534 km (0.115 R)
• M6: 3,033,695 km (0.074 R)
• M7: 4,379,029 km (0.113 R)
• M8: 5,121,034 km (0.094 R)
• M9: 6,368,232 km (0.12 R)
• M10: 6,925,185 km (0.093 R)
• M11: 7,834,141 km (0.081 R)
• M12: 8,984,399 km (0.088 R)
• M13: 9,600,294 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.8

Radius: 12.2

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.44 AU - 2.36 AU

Year: 1691 Days

Day: 13.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 65,007,834 km

• M1: 151,842 km (0.11 R)
• M2: 733,030 km (0.072 R)
• M3: 2,377,858 km (0.032 R)
• M4: 3,199,749 km (0.06 R)
• M5: 3,784,377 km (0.07 R)
• M6: 6,055,123 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86.3

Radius: 13.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.95 AU - 6.91 AU

Year: 9324 Days

Day: 7.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 55.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,007,834 km

• M1: 177,573 km (0.119 R)
• M2: 883,824 km (0.059 R)
• M3: 1,337,555 km (0.069 R)
• M4: 2,171,712 km (0.116 R)
• M5: 4,271,917 km (0.113 R)
• M6: 4,817,799 km (0.064 R)
• M7: 5,232,335 km (0.118 R)
• M8: 6,246,609 km (0.1 R)
• M9: 8,177,468 km (0.035 R)
• M10: 8,592,902 km (0.081 R)
• M11: 9,059,049 km (0.115 R)
• M12: 9,809,132 km (0.079 R)
• M13: 10,239,226 km (0.079 R)
• M14: 10,763,567 km (0.049 R)
• M15: 11,263,523 km (0.076 R)
• M16: 12,581,779 km (0.07 R)
• M17: 13,468,296 km (0.052 R)
• M18: 17,379,533 km (0.042 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.6

Radius: 5.8

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 7.56 AU - 7.88 AU

Year: 13850 Days

Day: 18.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,007,834 km

• M1: 83,476 km (0.047 R)
• M2: 413,937 km (0.074 R)
• M3: 649,554 km (0.102 R)
• M4: 1,179,280 km (0.093 R)
• M5: 2,707,273 km (0.081 R)
• M6: 4,691,539 km (0.076 R)
• M7: 8,498,505 km (0.088 R)
• M8: 8,712,131 km (0.1 R)
• M9: 15,084,851 km (0.097 R)
• M10: 15,930,378 km (0.099 R)
• M11: 19,692,166 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.5

Radius: 7.2

Gravity: 12.26 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 7.26 AU - 10.02 AU

Year: 16398 Days

Day: 22.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,007,834 km

• M1: 89,609 km (0.027 R)
• M2: 326,572 km (0.1 R)
• M3: 608,863 km (0.07 R)
• M4: 1,217,427 km (0.06 R)
• M5: 1,986,361 km (0.104 R)
• M6: 2,969,368 km (0.039 R)
• M7: 3,881,466 km (0.111 R)
• M8: 4,629,605 km (0.063 R)
• M9: 9,429,902 km (0.113 R)
• M10: 14,041,855 km (0.114 R)
• M11: 14,680,338 km (0.113 R)
• M12: 21,415,833 km (0.107 R)
• M13: 23,226,416 km (0.1 R)
• M14: 36,145,987 km (0.113 R)
• M15: 38,019,850 km (0.11 R)
• M16: 38,429,599 km (0.104 R)
• M17: 39,258,072 km (0.071 R)
• M18: 39,957,442 km (0.114 R)
• M19: 40,381,103 km (0.079 R)
• M20: 40,950,622 km (0.089 R)
• M21: 43,134,003 km (0.069 R)
• M22: 62,319,331 km (0.081 R)
• M23: 63,270,774 km (0.089 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 18,232 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit