🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 36.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,643,798 km

• M1: 35,006 km (0.085 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.39

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.55 AU - 0.75 AU

Year: 344 Days

Day: 44.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 60,643,798 km

• M1: 88,113 km (0.113 R)
• M2: 712,834 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167

Radius: 8.1

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.89 AU - 1.37 AU

Year: 788 Days

Day: 11 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,643,798 km

• M1: 100,829 km (0.044 R)
• M2: 557,850 km (0.097 R)
• M3: 970,591 km (0.118 R)
• M4: 1,762,413 km (0.029 R)
• M5: 2,898,309 km (0.085 R)
• M6: 3,395,572 km (0.114 R)
• M7: 4,307,970 km (0.116 R)
• M8: 4,617,039 km (0.117 R)
• M9: 5,031,874 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.4

Radius: 9

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.12 AU - 1.14 AU

Year: 788 Days

Day: 6.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,643,798 km

• M1: 111,899 km (0.1 R)
• M2: 421,417 km (0.116 R)
• M3: 753,524 km (0.095 R)
• M4: 1,287,140 km (0.11 R)
• M5: 1,714,691 km (0.083 R)
• M6: 2,024,658 km (0.064 R)
• M7: 2,311,437 km (0.052 R)
• M8: 3,430,578 km (0.113 R)
• M9: 3,939,959 km (0.12 R)
• M10: 4,581,136 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.9

Radius: 8.3

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.14 AU - 3.32 AU

Year: 3808 Days

Day: 12.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,643,798 km

• M1: 103,671 km (0.115 R)
• M2: 571,165 km (0.097 R)
• M3: 1,032,824 km (0.101 R)
• M4: 1,343,987 km (0.119 R)
• M5: 1,608,476 km (0.087 R)
• M6: 1,952,103 km (0.105 R)
• M7: 2,408,526 km (0.105 R)
• M8: 3,209,174 km (0.064 R)
• M9: 3,846,610 km (0.073 R)
• M10: 4,139,074 km (0.108 R)
• M11: 5,667,665 km (0.096 R)
• M12: 6,805,506 km (0.114 R)
• M13: 7,568,605 km (0.069 R)
• M14: 7,883,658 km (0.063 R)
• M15: 10,029,490 km (0.096 R)
• M16: 11,089,541 km (0.111 R)
• M17: 14,366,482 km (0.089 R)
• M18: 14,939,292 km (0.105 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859

Radius: 3.2

Gravity: 83.89 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 7.39 AU - 9.41 AU

Year: 15971 Days

Day: 18.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 60,643,798 km

• M1: 40,990 km (0.077 R)
• M2: 144,362 km (0.065 R)
• M3: 334,351 km (0.102 R)
• M4: 472,430 km (0.12 R)
• M5: 822,489 km (0.056 R)
• M6: 991,385 km (0.119 R)
• M7: 1,142,629 km (0.097 R)
• M8: 1,673,701 km (0.066 R)
• M9: 2,062,207 km (0.08 R)
• M10: 2,553,336 km (0.112 R)
• M11: 3,171,026 km (0.102 R)
• M12: 3,333,041 km (0.027 R)
• M13: 3,644,204 km (0.052 R)
• M14: 4,291,514 km (0.11 R)
• M15: 4,523,391 km (0.068 R)
• M16: 5,194,936 km (0.1 R)
• M17: 7,748,721 km (0.086 R)
• M18: 8,042,681 km (0.119 R)
• M19: 8,394,984 km (0.106 R)
• M20: 9,130,257 km (0.098 R)
• M21: 11,847,403 km (0.073 R)
• M22: 14,684,228 km (0.112 R)
• M23: 15,825,809 km (0.094 R)
• M24: 20,703,747 km (0.093 R)
• M25: 27,049,389 km (0.101 R)
• M26: 30,538,012 km (0.085 R)
• M27: 31,392,964 km (0.083 R)
• M28: 31,516,382 km (0.1 R)
• M29: 31,640,249 km (0.111 R)
• M30: 34,184,011 km (0.098 R)
• M31: 35,371,968 km (0.105 R)
• M32: 36,998,246 km (0.111 R)
• M33: 37,690,286 km (0.088 R)
• M34: 38,391,002 km (0.117 R)
• M35: 39,100,246 km (0.083 R)
• M36: 42,025,034 km (0.101 R)
• M37: 49,799,635 km (0.09 R)
• M38: 50,473,574 km (0.075 R)
• M39: 56,267,200 km (0.074 R)
• M40: 64,859,503 km (0.069 R)
• M41: 69,152,214 km (0.034 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 393.1

Radius: 6.8

Gravity: 8.5 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.27 AU - 11.45 AU

Year: 18786 Days

Day: 21.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,643,798 km

• M1: 88,412 km (0.062 R)
• M2: 474,225 km (0.112 R)
• M3: 738,265 km (0.066 R)
• M4: 975,229 km (0.112 R)
• M5: 1,198,877 km (0.049 R)
• M6: 1,486,404 km (0.063 R)
• M7: 1,769,144 km (0.083 R)
• M8: 2,341,057 km (0.087 R)
• M9: 3,931,432 km (0.119 R)
• M10: 6,412,214 km (0.108 R)
• M11: 7,296,935 km (0.114 R)
• M12: 9,100,487 km (0.111 R)
• M13: 11,065,306 km (0.108 R)
• M14: 12,905,509 km (0.074 R)
• M15: 13,296,558 km (0.095 R)
• M16: 13,628,516 km (0.054 R)
• M17: 15,811,448 km (0.025 R)
• M18: 16,792,511 km (0.035 R)
• M19: 17,974,334 km (0.102 R)
• M20: 21,851,163 km (0.058 R)
• M21: 24,228,871 km (0.106 R)
• M22: 24,924,352 km (0.061 R)
• M23: 32,149,181 km (0.119 R)
• M24: 32,507,169 km (0.109 R)
• M25: 34,962,518 km (0.068 R)
• M26: 44,823,561 km (0.025 R)
• M27: 49,268,712 km (0.063 R)
• M28: 53,998,997 km (0.069 R)
• M29: 57,783,225 km (0.111 R)
• M30: 60,100,346 km (0.113 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: 492 - 19,677 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit