🌌 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: 442.8

Radius: 14.6

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.61 AU - 0.71 AU

Year: 358 Days

Day: 9.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,616,251 km

• M1: 181,911 km (0.112 R)
• M2: 744,100 km (0.077 R)
• M3: 1,230,442 km (0.1 R)
• M4: 1,812,977 km (0.11 R)
• M5: 2,358,710 km (0.031 R)
• M6: 3,434,468 km (0.099 R)
• M7: 4,319,339 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.9

Radius: 13.8

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.73 AU - 1.01 AU

Year: 541 Days

Day: 9 Hours

Environment

Temp: -164 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,616,251 km

• M1: 171,589 km (0.113 R)
• M2: 612,454 km (0.088 R)
• M3: 1,070,672 km (0.079 R)
• M4: 1,835,865 km (0.114 R)
• M5: 2,292,139 km (0.106 R)
• M6: 3,030,254 km (0.075 R)
• M7: 3,831,501 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.7

Radius: 10.3

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.91 AU - 1.13 AU

Year: 687 Days

Day: 14.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,616,251 km

• M1: 128,355 km (0.047 R)
• M2: 455,226 km (0.116 R)
• M3: 850,314 km (0.118 R)
• M4: 1,418,188 km (0.082 R)
• M5: 1,877,603 km (0.081 R)
• M6: 2,247,858 km (0.069 R)
• M7: 2,666,881 km (0.118 R)
• M8: 3,293,547 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.9

Radius: 11.8

Gravity: 0.52 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.76 AU - 2.24 AU

Year: 1886 Days

Day: 13.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 89.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,616,251 km

• M1: 147,952 km (0.106 R)
• M2: 616,792 km (0.091 R)
• M3: 1,539,811 km (0.08 R)
• M4: 2,329,388 km (0.117 R)
• M5: 2,800,173 km (0.069 R)
• M6: 4,166,002 km (0.077 R)
• M7: 5,046,983 km (0.118 R)
• M8: 5,603,936 km (0.106 R)
• M9: 6,495,988 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.1

Radius: 8.4

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.25 AU - 3.91 AU

Year: 4517 Days

Day: 14.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 42,616,251 km

• M1: 104,719 km (0.108 R)
• M2: 576,999 km (0.112 R)
• M3: 1,198,728 km (0.059 R)
• M4: 1,567,935 km (0.119 R)
• M5: 1,930,261 km (0.102 R)
• M6: 2,554,084 km (0.069 R)
• M7: 3,345,158 km (0.111 R)
• M8: 3,670,384 km (0.104 R)
• M9: 4,552,562 km (0.106 R)
• M10: 5,161,725 km (0.117 R)
• M11: 6,387,829 km (0.115 R)
• M12: 7,184,438 km (0.06 R)
• M13: 7,623,956 km (0.08 R)
• M14: 8,262,141 km (0.102 R)
• M15: 8,935,331 km (0.116 R)
• M16: 11,130,530 km (0.087 R)
• M17: 11,490,612 km (0.08 R)
• M18: 12,472,722 km (0.054 R)
• M19: 12,812,160 km (0.051 R)
• M20: 16,037,341 km (0.058 R)
• M21: 16,496,905 km (0.091 R)
• M22: 17,322,237 km (0.119 R)
• M23: 17,806,036 km (0.087 R)
• M24: 20,968,685 km (0.107 R)
• M25: 21,866,721 km (0.104 R)
• M26: 23,665,336 km (0.096 R)
• M27: 25,482,651 km (0.111 R)
• M28: 26,266,693 km (0.084 R)
• M29: 26,744,808 km (0.038 R)

Asteroid Belt

Center: 3.86 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333

Radius: 11.3

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.44 AU - 4.84 AU

Year: 5617 Days

Day: 14.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,616,251 km

• M1: 140,622 km (0.094 R)
• M2: 578,794 km (0.065 R)
• M3: 984,653 km (0.11 R)
• M4: 2,592,082 km (0.096 R)
• M5: 3,585,711 km (0.116 R)
• M6: 4,070,109 km (0.063 R)
• M7: 4,966,500 km (0.113 R)
• M8: 5,570,277 km (0.115 R)
• M9: 6,400,545 km (0.113 R)
• M10: 8,058,538 km (0.073 R)
• M11: 9,905,324 km (0.077 R)
• M12: 13,108,214 km (0.042 R)
• M13: 15,482,482 km (0.044 R)
• M14: 16,202,347 km (0.061 R)
• M15: 17,589,867 km (0.106 R)
• M16: 18,009,190 km (0.086 R)
• M17: 19,118,009 km (0.116 R)
• M18: 19,817,679 km (0.03 R)
• M19: 24,011,505 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.1

Radius: 10.3

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.59 AU - 5.65 AU

Year: 6622 Days

Day: 12.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 42,616,251 km

• M1: 128,205 km (0.073 R)
• M2: 484,548 km (0.033 R)
• M3: 1,023,848 km (0.099 R)
• M4: 1,372,261 km (0.097 R)
• M5: 1,767,349 km (0.116 R)
• M6: 2,525,810 km (0.117 R)
• M7: 3,159,806 km (0.119 R)
• M8: 3,954,919 km (0.107 R)
• M9: 4,991,782 km (0.081 R)
• M10: 5,990,946 km (0.108 R)
• M11: 8,124,212 km (0.115 R)
• M12: 8,545,629 km (0.058 R)
• M13: 9,934,346 km (0.119 R)
• M14: 10,992,302 km (0.118 R)
• M15: 11,916,069 km (0.077 R)
• M16: 14,806,898 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.2

Radius: 3.1

Gravity: 41.02 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 5.91 AU - 7.09 AU

Year: 11051 Days

Day: 24.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 42,616,251 km

• M1: 38,596 km (0.117 R)
• M2: 168,298 km (0.038 R)
• M3: 432,936 km (0.048 R)
• M4: 605,423 km (0.112 R)
• M5: 1,394,851 km (0.098 R)
• M6: 1,833,023 km (0.073 R)
• M7: 2,301,862 km (0.025 R)
• M8: 2,449,366 km (0.102 R)
• M9: 2,930,323 km (0.097 R)
• M10: 3,215,606 km (0.112 R)
• M11: 3,790,511 km (0.028 R)
• M12: 5,489,494 km (0.103 R)
• M13: 9,189,498 km (0.107 R)
• M14: 10,137,051 km (0.097 R)
• M15: 10,533,635 km (0.04 R)
• M16: 11,894,078 km (0.051 R)
• M17: 14,086,584 km (0.119 R)
• M18: 17,715,081 km (0.108 R)
• M19: 18,072,919 km (0.116 R)
• M20: 19,250,404 km (0.117 R)
• M21: 19,934,664 km (0.053 R)
• M22: 21,838,297 km (0.095 R)
• M23: 24,648,942 km (0.096 R)
• M24: 25,184,502 km (0.119 R)
• M25: 26,278,960 km (0.051 R)
• M26: 26,650,711 km (0.087 R)
• M27: 28,367,197 km (0.079 R)
• M28: 29,054,001 km (0.071 R)
• M29: 38,300,196 km (0.077 R)
• M30: 39,380,742 km (0.046 R)
• M31: 40,728,918 km (0.103 R)
• M32: 40,852,935 km (0.082 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 10,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit