🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.5 AU - 0.68 AU

Year: 297 Days

Day: 30.9 Hours

Environment

Temp: -118 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.7

Radius: 9.5

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.62 AU - 0.82 AU

Year: 401 Days

Day: 11.7 Hours

Environment

Temp: -130 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 74,391,515 km

• M1: 118,332 km (0.059 R)
• M2: 486,642 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.2

Radius: 10.4

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.99 AU - 6.31 AU

Year: 7667 Days

Day: 7.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 74,391,515 km

• M1: 132,095 km (0.078 R)
• M2: 625,469 km (0.105 R)
• M3: 949,049 km (0.028 R)
• M4: 1,452,147 km (0.116 R)
• M5: 1,917,845 km (0.034 R)
• M6: 2,854,627 km (0.114 R)
• M7: 3,264,974 km (0.105 R)
• M8: 3,714,515 km (0.067 R)
• M9: 4,594,001 km (0.114 R)
• M10: 5,541,255 km (0.078 R)
• M11: 6,113,467 km (0.101 R)
• M12: 7,985,235 km (0.112 R)
• M13: 8,366,710 km (0.064 R)
• M14: 9,029,428 km (0.097 R)
• M15: 9,774,725 km (0.106 R)
• M16: 12,708,638 km (0.093 R)
• M17: 13,229,538 km (0.112 R)
• M18: 13,584,534 km (0.087 R)
• M19: 16,184,246 km (0.113 R)
• M20: 19,629,335 km (0.105 R)
• M21: 20,014,250 km (0.093 R)
• M22: 20,482,791 km (0.12 R)
• M23: 22,597,806 km (0.105 R)
• M24: 23,020,719 km (0.077 R)
• M25: 26,409,111 km (0.12 R)
• M26: 27,067,640 km (0.078 R)
• M27: 28,515,598 km (0.103 R)
• M28: 34,714,036 km (0.059 R)

Planet 4 - Ice Giant

Semi-Major Axis: 8.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 373.1

Radius: 7.9

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 8.48 AU - 8.84 AU

Year: 16718 Days

Day: 17.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,391,515 km

• M1: 98,884 km (0.089 R)
• M2: 525,537 km (0.1 R)
• M3: 2,223,623 km (0.081 R)
• M4: 2,863,752 km (0.091 R)
• M5: 3,594,538 km (0.087 R)
• M6: 4,032,261 km (0.108 R)
• M7: 4,293,758 km (0.063 R)
• M8: 4,566,774 km (0.109 R)
• M9: 5,959,979 km (0.111 R)
• M10: 7,660,309 km (0.109 R)
• M11: 10,345,441 km (0.102 R)
• M12: 14,868,084 km (0.083 R)
• M13: 15,214,103 km (0.105 R)
• M14: 16,578,885 km (0.085 R)
• M15: 17,177,127 km (0.095 R)
• M16: 18,023,252 km (0.119 R)
• M17: 18,977,687 km (0.092 R)
• M18: 22,042,797 km (0.077 R)
• M19: 22,674,998 km (0.115 R)
• M20: 33,662,962 km (0.083 R)
• M21: 34,380,433 km (0.051 R)
• M22: 43,379,493 km (0.066 R)
• M23: 48,340,757 km (0.119 R)
• M24: 53,343,758 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 678.9

Radius: 5.3

Gravity: 24.17 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 8.35 AU - 10.79 AU

Year: 19421 Days

Day: 19.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 102.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,391,515 km

• M1: 65,973 km (0.068 R)
• M2: 1,030,430 km (0.109 R)
• M3: 1,213,388 km (0.044 R)
• M4: 1,402,630 km (0.089 R)
• M5: 1,993,541 km (0.094 R)
• M6: 2,366,938 km (0.101 R)
• M7: 2,835,328 km (0.041 R)
• M8: 3,892,088 km (0.108 R)
• M9: 4,112,146 km (0.072 R)
• M10: 4,407,303 km (0.109 R)
• M11: 5,934,248 km (0.077 R)
• M12: 7,347,799 km (0.036 R)
• M13: 8,234,465 km (0.062 R)
• M14: 9,581,444 km (0.078 R)
• M15: 11,639,911 km (0.036 R)
• M16: 12,097,681 km (0.081 R)
• M17: 13,903,028 km (0.118 R)
• M18: 15,253,298 km (0.115 R)
• M19: 17,270,476 km (0.079 R)
• M20: 18,650,815 km (0.1 R)
• M21: 19,186,825 km (0.075 R)
• M22: 25,341,730 km (0.119 R)
• M23: 26,443,668 km (0.114 R)
• M24: 31,926,430 km (0.105 R)
• M25: 32,180,596 km (0.084 R)
• M26: 35,201,725 km (0.092 R)
• M27: 38,406,710 km (0.111 R)
• M28: 39,273,779 km (0.093 R)
• M29: 45,069,799 km (0.109 R)
• M30: 49,517,643 km (0.035 R)
• M31: 49,858,278 km (0.072 R)
• M32: 50,200,408 km (0.111 R)
• M33: 54,249,274 km (0.117 R)
• M34: 54,611,301 km (0.087 R)
• M35: 62,392,485 km (0.082 R)
• M36: 65,414,362 km (0.067 R)
• M37: 67,482,103 km (0.094 R)
• M38: 72,183,965 km (0.034 R)
• M39: 73,282,163 km (0.075 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 18,809 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit