🌌 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 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.9

Radius: 10.2

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.53 AU - 0.57 AU

Year: 272 Days

Day: 11.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 138.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,173,298 km

• M1: 126,859 km (0.058 R)
• M2: 492,327 km (0.111 R)
• M3: 865,573 km (0.106 R)
• M4: 1,221,317 km (0.06 R)
• M5: 1,743,114 km (0.114 R)
• M6: 2,075,970 km (0.104 R)
• M7: 2,674,960 km (0.075 R)
• M8: 3,010,657 km (0.116 R)
• M9: 4,104,666 km (0.052 R)
• M10: 4,461,457 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491

Radius: 11.7

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.56 AU - 0.62 AU

Year: 302 Days

Day: 13.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,173,298 km

• M1: 147,204 km (0.09 R)
• M2: 629,657 km (0.11 R)
• M3: 1,098,048 km (0.076 R)
• M4: 1,759,869 km (0.104 R)
• M5: 2,148,375 km (0.06 R)
• M6: 2,586,098 km (0.071 R)
• M7: 3,015,295 km (0.069 R)
• M8: 3,676,816 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.4

Radius: 13.2

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 0.88 AU - 0.96 AU

Year: 588 Days

Day: 12.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,173,298 km

• M1: 164,408 km (0.117 R)
• M2: 1,019,210 km (0.045 R)
• M3: 1,762,113 km (0.072 R)
• M4: 2,386,086 km (0.048 R)
• M5: 2,939,299 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.2

Radius: 12.6

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.88 AU - 2.4 AU

Year: 2088 Days

Day: 9.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,173,298 km

• M1: 156,629 km (0.092 R)
• M2: 588,219 km (0.117 R)
• M3: 1,007,542 km (0.107 R)
• M4: 1,455,138 km (0.05 R)
• M5: 2,256,235 km (0.06 R)
• M6: 3,575,389 km (0.068 R)
• M7: 4,647,108 km (0.114 R)
• M8: 5,444,016 km (0.072 R)
• M9: 7,148,833 km (0.055 R)
• M10: 7,584,014 km (0.078 R)
• M11: 8,211,278 km (0.116 R)
• M12: 9,090,913 km (0.102 R)
• M13: 10,683,532 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.8

Radius: 10.6

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.14 AU - 2.16 AU

Year: 2102 Days

Day: 10.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 57,173,298 km

• M1: 131,796 km (0.116 R)
• M2: 493,075 km (0.082 R)
• M3: 1,218,026 km (0.083 R)
• M4: 2,615,569 km (0.047 R)
• M5: 3,860,822 km (0.095 R)
• M6: 4,473,874 km (0.073 R)
• M7: 5,181,472 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.2

Radius: 10.9

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.6 AU - 4.1 AU

Year: 4089 Days

Day: 8 Hours

Environment

Temp: -210 °C

Axial Tilt: 90.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,173,298 km

• M1: 135,984 km (0.104 R)
• M2: 769,681 km (0.108 R)
• M3: 1,248,095 km (0.076 R)
• M4: 1,628,522 km (0.092 R)
• M5: 2,929,725 km (0.111 R)
• M6: 3,614,434 km (0.061 R)
• M7: 7,491,263 km (0.112 R)
• M8: 8,477,711 km (0.046 R)
• M9: 10,189,261 km (0.055 R)
• M10: 10,745,017 km (0.112 R)
• M11: 15,027,854 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 61.1

Radius: 7.8

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 5.31 AU - 6.47 AU

Year: 9532 Days

Day: 22.7 Hours

Environment

Temp: -237 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,173,298 km

• M1: 108,010 km (0.094 R)
• M2: 498,909 km (0.088 R)
• M3: 832,213 km (0.114 R)
• M4: 1,168,509 km (0.104 R)
• M5: 1,916,349 km (0.075 R)
• M6: 2,511,150 km (0.108 R)
• M7: 2,900,703 km (0.101 R)
• M8: 3,348,150 km (0.092 R)
• M9: 4,251,721 km (0.068 R)
• M10: 5,383,579 km (0.086 R)
• M11: 8,634,191 km (0.109 R)
• M12: 9,053,514 km (0.096 R)
• M13: 9,707,705 km (0.073 R)
• M14: 10,549,642 km (0.09 R)
• M15: 11,439,300 km (0.067 R)
• M16: 14,215,089 km (0.101 R)
• M17: 15,553,391 km (0.085 R)
• M18: 19,410,773 km (0.105 R)
• M19: 20,435,518 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 581.6

Radius: 4.9

Gravity: 24.22 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 6.51 AU - 8.81 AU

Year: 14138 Days

Day: 18.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 57,173,298 km

• M1: 60,886 km (0.053 R)
• M2: 361,877 km (0.063 R)
• M3: 1,064,688 km (0.119 R)
• M4: 1,235,828 km (0.095 R)
• M5: 2,770,253 km (0.104 R)
• M6: 3,448,829 km (0.092 R)
• M7: 6,298,519 km (0.041 R)
• M8: 7,030,053 km (0.115 R)
• M9: 7,548,110 km (0.064 R)
• M10: 7,771,460 km (0.068 R)
• M11: 8,091,450 km (0.06 R)
• M12: 10,582,105 km (0.106 R)
• M13: 11,032,245 km (0.094 R)
• M14: 13,345,776 km (0.106 R)
• M15: 14,478,082 km (0.082 R)
• M16: 16,780,842 km (0.08 R)
• M17: 19,988,220 km (0.111 R)
• M18: 20,762,240 km (0.117 R)
• M19: 20,936,970 km (0.049 R)
• M20: 22,553,674 km (0.11 R)
• M21: 24,542,727 km (0.12 R)
• M22: 24,738,102 km (0.077 R)
• M23: 26,440,526 km (0.049 R)
• M24: 28,866,106 km (0.073 R)
• M25: 30,751,338 km (0.036 R)
• M26: 31,897,707 km (0.031 R)
• M27: 34,397,487 km (0.109 R)
• M28: 36,514,447 km (0.091 R)
• M29: 39,917,649 km (0.076 R)
• M30: 40,323,358 km (0.076 R)
• M31: 41,557,241 km (0.116 R)
• M32: 42,393,643 km (0.085 R)
• M33: 46,894,594 km (0.109 R)
• M34: 47,801,008 km (0.087 R)
• M35: 52,671,017 km (0.109 R)
• M36: 55,309,175 km (0.11 R)
• M37: 57,002,174 km (0.076 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: 342 - 18,930 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit