🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.73 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.43 AU - 1.49 AU

Year: 614 Days

Day: 26.3 Hours

Environment

Temp: 0 °C

Axial Tilt: 25.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.37 AU - 1.71 AU

Year: 666 Days

Day: 35.4 Hours

Environment

Temp: -4 °C

Axial Tilt: 37.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 108,348,147 km

• M1: 90,806 km (0.101 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.63 AU - 4.03 AU

Year: 2116 Days

Day: 16.8 Hours

Environment

Temp: -88 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 108,348,147 km

• M1: 42,486 km (0.089 R)

Planet 4 - Terrestrial

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 4.98 AU - 5.4 AU

Year: 4118 Days

Day: 39.9 Hours

Environment

Temp: -120 °C

Axial Tilt: 31.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.4 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.7

Radius: 10.4

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 7.53 AU - 7.67 AU

Year: 7296 Days

Day: 14 Hours

Environment

Temp: -163 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 108,348,147 km

• M1: 146,008 km (0.107 R)
• M2: 470,037 km (0.099 R)
• M3: 912,397 km (0.026 R)
• M4: 1,253,331 km (0.058 R)
• M5: 2,637,410 km (0.108 R)
• M6: 3,307,759 km (0.056 R)
• M7: 4,823,783 km (0.088 R)
• M8: 5,323,291 km (0.062 R)
• M9: 6,624,194 km (0.056 R)
• M10: 7,171,872 km (0.102 R)
• M11: 9,121,132 km (0.085 R)
• M12: 11,256,791 km (0.059 R)
• M13: 21,862,831 km (0.1 R)
• M14: 22,922,732 km (0.093 R)
• M15: 26,477,477 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.4

Radius: 12.7

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.78 AU - 8.64 AU

Year: 7455 Days

Day: 10.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 108,348,147 km

• M1: 161,715 km (0.059 R)
• M2: 603,179 km (0.089 R)
• M3: 1,193,641 km (0.091 R)
• M4: 2,112,920 km (0.045 R)
• M5: 2,630,379 km (0.09 R)
• M6: 3,034,593 km (0.112 R)
• M7: 3,438,208 km (0.107 R)
• M8: 4,040,788 km (0.065 R)
• M9: 5,173,394 km (0.038 R)
• M10: 6,739,234 km (0.11 R)
• M11: 7,468,524 km (0.071 R)
• M12: 11,110,783 km (0.116 R)
• M13: 15,619,214 km (0.109 R)
• M14: 16,710,232 km (0.062 R)
• M15: 17,274,515 km (0.107 R)
• M16: 24,348,849 km (0.106 R)
• M17: 30,194,086 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531

Radius: 11.4

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.72 AU - 10.4 AU

Year: 9497 Days

Day: 10.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 108,348,147 km

• M1: 142,118 km (0.103 R)
• M2: 637,736 km (0.1 R)
• M3: 1,186,610 km (0.081 R)
• M4: 1,651,710 km (0.066 R)
• M5: 2,342,104 km (0.092 R)
• M6: 3,238,495 km (0.074 R)
• M7: 4,860,285 km (0.105 R)
• M8: 5,635,053 km (0.09 R)
• M9: 7,081,365 km (0.099 R)
• M10: 9,860,893 km (0.109 R)
• M11: 10,947,273 km (0.095 R)
• M12: 12,166,346 km (0.111 R)
• M13: 13,890,013 km (0.085 R)
• M14: 16,233,015 km (0.095 R)
• M15: 16,704,397 km (0.089 R)
• M16: 17,603,780 km (0.094 R)
• M17: 19,348,839 km (0.093 R)
• M18: 20,967,787 km (0.1 R)
• M19: 22,591,971 km (0.12 R)
• M20: 29,832,059 km (0.089 R)
• M21: 30,336,503 km (0.078 R)
• M22: 33,591,454 km (0.083 R)
• M23: 36,495,298 km (0.028 R)
• M24: 37,188,535 km (0.114 R)
• M25: 38,720,417 km (0.101 R)
• M26: 42,415,634 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 12.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.2

Radius: 12.1

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 12.47 AU - 13.27 AU

Year: 16079 Days

Day: 14.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 108,348,147 km

• M1: 154,834 km (0.051 R)
• M2: 1,127,968 km (0.102 R)
• M3: 1,779,616 km (0.1 R)
• M4: 2,861,807 km (0.084 R)
• M5: 3,604,860 km (0.046 R)
• M6: 4,814,508 km (0.113 R)
• M7: 5,210,943 km (0.111 R)
• M8: 5,826,837 km (0.099 R)
• M9: 6,577,220 km (0.117 R)
• M10: 8,219,954 km (0.031 R)
• M11: 8,631,049 km (0.078 R)
• M12: 9,164,366 km (0.114 R)
• M13: 11,648,139 km (0.066 R)
• M14: 12,634,887 km (0.074 R)
• M15: 13,393,497 km (0.099 R)
• M16: 15,539,180 km (0.087 R)
• M17: 19,398,206 km (0.109 R)
• M18: 19,852,834 km (0.089 R)
• M19: 21,068,317 km (0.108 R)
• M20: 23,034,332 km (0.098 R)
• M21: 25,443,157 km (0.104 R)
• M22: 25,878,636 km (0.052 R)
• M23: 26,429,905 km (0.086 R)
• M24: 30,511,084 km (0.108 R)
• M25: 37,043,275 km (0.108 R)
• M26: 38,453,085 km (0.102 R)
• M27: 39,606,335 km (0.109 R)
• M28: 41,080,323 km (0.078 R)
• M29: 42,437,774 km (0.038 R)
• M30: 46,365,466 km (0.083 R)
• M31: 51,044,888 km (0.115 R)
• M32: 57,698,852 km (0.073 R)
• M33: 70,963,246 km (0.069 R)
• M34: 73,354,867 km (0.046 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 964.7

Radius: 6.5

Gravity: 22.83 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 14.3 AU - 23.52 AU

Year: 28637 Days

Day: 19.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 108,348,147 km

• M1: 80,783 km (0.072 R)
• M2: 397,482 km (0.077 R)
• M3: 631,752 km (0.104 R)
• M4: 1,112,410 km (0.103 R)
• M5: 1,558,959 km (0.074 R)
• M6: 1,918,593 km (0.089 R)
• M7: 2,381,897 km (0.099 R)
• M8: 2,776,387 km (0.063 R)
• M9: 3,464,836 km (0.034 R)
• M10: 5,345,581 km (0.115 R)
• M11: 13,053,761 km (0.103 R)
• M12: 17,034,560 km (0.038 R)
• M13: 18,992,646 km (0.11 R)
• M14: 19,712,063 km (0.118 R)
• M15: 20,663,505 km (0.039 R)
• M16: 25,635,091 km (0.097 R)
• M17: 27,671,717 km (0.117 R)
• M18: 28,595,783 km (0.03 R)
• M19: 31,065,943 km (0.117 R)
• M20: 33,230,325 km (0.077 R)
• M21: 35,032,680 km (0.106 R)
• M22: 40,155,509 km (0.085 R)
• M23: 41,510,118 km (0.057 R)
• M24: 43,421,979 km (0.063 R)
• M25: 47,233,433 km (0.057 R)
• M26: 52,855,022 km (0.086 R)
• M27: 57,193,360 km (0.102 R)
• M28: 58,045,769 km (0.104 R)
• M29: 59,557,904 km (0.103 R)
• M30: 66,102,213 km (0.086 R)
• M31: 69,426,427 km (0.112 R)
• M32: 70,884,557 km (0.067 R)
• M33: 71,621,327 km (0.094 R)
• M34: 77,180,384 km (0.03 R)
• M35: 83,838,686 km (0.098 R)
• M36: 92,029,917 km (0.059 R)
• M37: 95,271,404 km (0.031 R)
• M38: 102,606,337 km (0.114 R)

Kuiper Belt

Range: 31.5 - 47.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 11,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit