🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.5

Radius: 11.8

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.53 AU - 0.61 AU

Year: 287 Days

Day: 6.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,981,810 km

• M1: 146,756 km (0.113 R)
• M2: 663,915 km (0.056 R)
• M3: 1,165,218 km (0.098 R)
• M4: 2,066,844 km (0.092 R)
• M5: 2,577,871 km (0.105 R)
• M6: 2,996,445 km (0.084 R)
• M7: 3,949,085 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.1

Radius: 12.3

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.57 AU - 0.59 AU

Year: 295 Days

Day: 9.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,981,810 km

• M1: 156,779 km (0.091 R)
• M2: 544,835 km (0.109 R)
• M3: 1,045,240 km (0.104 R)
• M4: 1,444,517 km (0.079 R)
• M5: 1,840,951 km (0.075 R)
• M6: 2,246,362 km (0.099 R)
• M7: 2,794,339 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247

Radius: 13.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.64 AU - 3.88 AU

Year: 3925 Days

Day: 9.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,981,810 km

• M1: 165,904 km (0.105 R)
• M2: 649,853 km (0.088 R)
• M3: 1,596,359 km (0.099 R)
• M4: 2,390,424 km (0.117 R)
• M5: 2,894,420 km (0.106 R)
• M6: 3,610,993 km (0.099 R)
• M7: 4,139,223 km (0.082 R)
• M8: 5,281,852 km (0.115 R)
• M9: 8,090,103 km (0.083 R)
• M10: 10,268,697 km (0.116 R)
• M11: 12,728,385 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.7

Radius: 15

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.23 AU - 4.29 AU

Year: 4862 Days

Day: 5.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,981,810 km

• M1: 186,549 km (0.059 R)
• M2: 1,457,083 km (0.078 R)
• M3: 1,941,780 km (0.074 R)
• M4: 2,536,432 km (0.113 R)
• M5: 3,788,566 km (0.086 R)
• M6: 4,705,302 km (0.095 R)
• M7: 5,191,645 km (0.067 R)
• M8: 6,068,438 km (0.079 R)
• M9: 6,616,714 km (0.107 R)
• M10: 7,293,046 km (0.063 R)
• M11: 8,185,995 km (0.062 R)
• M12: 8,748,783 km (0.113 R)
• M13: 9,835,013 km (0.064 R)
• M14: 11,051,543 km (0.113 R)
• M15: 13,347,122 km (0.12 R)
• M16: 16,381,266 km (0.115 R)
• M17: 17,277,656 km (0.116 R)
• M18: 18,384,382 km (0.093 R)
• M19: 19,912,075 km (0.11 R)
• M20: 20,868,305 km (0.058 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.7

Radius: 9.5

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.36 AU - 5.18 AU

Year: 6947 Days

Day: 14.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 61,981,810 km

• M1: 118,482 km (0.042 R)
• M2: 626,067 km (0.055 R)
• M3: 1,107,772 km (0.062 R)
• M4: 1,427,762 km (0.119 R)
• M5: 1,994,738 km (0.118 R)
• M6: 2,532,094 km (0.107 R)
• M7: 3,229,818 km (0.108 R)
• M8: 4,594,599 km (0.119 R)
• M9: 5,003,899 km (0.087 R)
• M10: 5,437,583 km (0.026 R)
• M11: 5,997,678 km (0.109 R)
• M12: 7,467,627 km (0.105 R)
• M13: 9,300,948 km (0.088 R)
• M14: 9,625,576 km (0.097 R)
• M15: 10,695,350 km (0.075 R)
• M16: 11,363,753 km (0.074 R)
• M17: 14,689,613 km (0.086 R)
• M18: 16,709,633 km (0.119 R)
• M19: 19,505,318 km (0.098 R)
• M20: 20,038,186 km (0.064 R)
• M21: 20,502,538 km (0.057 R)
• M22: 21,212,679 km (0.06 R)
• M23: 21,614,200 km (0.058 R)
• M24: 25,822,238 km (0.065 R)
• M25: 28,651,283 km (0.099 R)
• M26: 29,638,480 km (0.094 R)
• M27: 36,961,595 km (0.104 R)
• M28: 37,310,008 km (0.096 R)
• M29: 40,053,483 km (0.114 R)
• M30: 41,662,259 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 383.6

Radius: 7.8

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 7.29 AU - 11.79 AU

Year: 19650 Days

Day: 18.2 Hours

Environment

Temp: -245 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,981,810 km

• M1: 96,939 km (0.086 R)
• M2: 365,019 km (0.026 R)
• M3: 984,952 km (0.096 R)
• M4: 1,301,651 km (0.119 R)
• M5: 2,105,889 km (0.111 R)
• M6: 3,683,848 km (0.102 R)
• M7: 5,811,728 km (0.057 R)
• M8: 10,449,411 km (0.069 R)
• M9: 14,632,766 km (0.118 R)
• M10: 19,641,602 km (0.094 R)
• M11: 22,907,922 km (0.081 R)
• M12: 24,569,206 km (0.113 R)
• M13: 27,477,987 km (0.112 R)
• M14: 29,127,005 km (0.117 R)
• M15: 37,038,937 km (0.088 R)
• M16: 41,982,847 km (0.117 R)
• M17: 45,663,703 km (0.085 R)
• M18: 50,035,252 km (0.112 R)
• M19: 56,927,675 km (0.119 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 14,359 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit