🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.41 AU - 0.65 AU

Year: 253 Days

Day: 25.4 Hours

Environment

Temp: -119 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.6

Radius: 13.7

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.59 AU - 0.91 AU

Year: 426 Days

Day: 6.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 33,341,404 km

• M1: 170,691 km (0.035 R)
• M2: 803,041 km (0.077 R)
• M3: 1,258,417 km (0.109 R)
• M4: 1,844,392 km (0.065 R)
• M5: 2,271,195 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.5

Radius: 14.3

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.02 AU - 1.34 AU

Year: 841 Days

Day: 6.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,341,404 km

• M1: 177,872 km (0.051 R)
• M2: 637,287 km (0.054 R)
• M3: 1,094,159 km (0.111 R)
• M4: 1,626,278 km (0.065 R)
• M5: 2,073,127 km (0.116 R)
• M6: 3,452,868 km (0.114 R)
• M7: 3,958,509 km (0.062 R)
• M8: 4,630,802 km (0.094 R)
• M9: 5,378,492 km (0.105 R)
• M10: 6,082,350 km (0.031 R)
• M11: 6,628,233 km (0.089 R)
• M12: 7,508,766 km (0.054 R)
• M13: 8,364,167 km (0.106 R)
• M14: 8,908,104 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.7

Radius: 12.1

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.88 AU - 2.36 AU

Year: 2025 Days

Day: 14.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,341,404 km

• M1: 151,094 km (0.119 R)
• M2: 599,139 km (0.091 R)
• M3: 1,026,840 km (0.08 R)
• M4: 1,840,652 km (0.113 R)
• M5: 2,623,797 km (0.11 R)
• M6: 3,531,856 km (0.032 R)
• M7: 4,031,214 km (0.094 R)
• M8: 4,890,055 km (0.099 R)
• M9: 6,186,770 km (0.115 R)
• M10: 6,834,828 km (0.087 R)
• M11: 7,556,338 km (0.099 R)
• M12: 8,236,410 km (0.055 R)
• M13: 8,733,224 km (0.05 R)
• M14: 9,118,888 km (0.065 R)
• M15: 9,684,817 km (0.11 R)
• M16: 11,146,537 km (0.115 R)
• M17: 11,677,909 km (0.118 R)
• M18: 15,091,284 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.6

Radius: 10.6

Gravity: 7.9 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.91 AU - 3.91 AU

Year: 4131 Days

Day: 7.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,341,404 km

• M1: 140,472 km (0.059 R)
• M2: 511,026 km (0.089 R)
• M3: 864,975 km (0.103 R)
• M4: 1,347,877 km (0.084 R)
• M5: 1,923,529 km (0.109 R)
• M6: 3,362,811 km (0.104 R)
• M7: 4,550,019 km (0.109 R)
• M8: 4,932,242 km (0.04 R)
• M9: 6,777,980 km (0.035 R)
• M10: 7,695,464 km (0.111 R)
• M11: 10,070,929 km (0.099 R)
• M12: 10,678,296 km (0.091 R)
• M13: 18,548,042 km (0.117 R)
• M14: 19,660,601 km (0.059 R)
• M15: 21,095,544 km (0.097 R)
• M16: 23,414,760 km (0.072 R)
• M17: 28,984,737 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.2

Radius: 15

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.92 AU - 4.24 AU

Year: 5406 Days

Day: 14 Hours

Environment

Temp: -214 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 33,341,404 km

• M1: 191,186 km (0.063 R)
• M2: 719,865 km (0.055 R)
• M3: 1,208,601 km (0.118 R)
• M4: 2,103,346 km (0.099 R)
• M5: 2,745,121 km (0.049 R)
• M6: 3,515,999 km (0.104 R)
• M7: 5,036,960 km (0.089 R)
• M8: 6,102,696 km (0.08 R)
• M9: 6,689,418 km (0.048 R)
• M10: 8,362,671 km (0.119 R)
• M11: 9,725,058 km (0.057 R)
• M12: 10,528,249 km (0.106 R)
• M13: 12,835,049 km (0.112 R)
• M14: 19,175,006 km (0.118 R)
• M15: 19,730,014 km (0.104 R)
• M16: 20,224,435 km (0.094 R)
• M17: 21,757,814 km (0.066 R)
• M18: 23,445,876 km (0.036 R)
• M19: 25,802,641 km (0.061 R)
• M20: 27,517,481 km (0.119 R)
• M21: 32,919,460 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.7

Radius: 13.9

Gravity: 4.44 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.65 AU - 5.69 AU

Year: 6620 Days

Day: 13.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 33,341,404 km

• M1: 172,935 km (0.101 R)
• M2: 720,015 km (0.12 R)
• M3: 1,348,625 km (0.092 R)
• M4: 1,834,369 km (0.057 R)
• M5: 3,368,046 km (0.113 R)
• M6: 4,361,825 km (0.108 R)
• M7: 5,087,973 km (0.064 R)
• M8: 6,225,515 km (0.084 R)
• M9: 6,854,874 km (0.113 R)
• M10: 7,878,273 km (0.091 R)
• M11: 9,398,337 km (0.093 R)
• M12: 10,228,156 km (0.101 R)
• M13: 11,206,975 km (0.088 R)
• M14: 13,752,532 km (0.091 R)
• M15: 14,221,522 km (0.081 R)
• M16: 14,761,719 km (0.092 R)
• M17: 16,140,264 km (0.047 R)
• M18: 16,927,597 km (0.112 R)
• M19: 19,008,205 km (0.092 R)
• M20: 20,638,672 km (0.049 R)
• M21: 21,961,117 km (0.063 R)
• M22: 24,774,604 km (0.074 R)
• M23: 25,734,125 km (0.08 R)
• M24: 26,357,649 km (0.064 R)
• M25: 28,952,574 km (0.051 R)
• M26: 29,530,171 km (0.088 R)
• M27: 30,509,738 km (0.082 R)
• M28: 34,109,511 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.6

Radius: 4.4

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 7.24 AU - 11.36 AU

Year: 18605 Days

Day: 23 Hours

Environment

Temp: -228 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,341,404 km

• M1: 60,288 km (0.067 R)
• M2: 230,082 km (0.067 R)
• M3: 459,714 km (0.094 R)
• M4: 1,036,863 km (0.077 R)
• M5: 2,265,959 km (0.11 R)
• M6: 4,627,960 km (0.115 R)
• M7: 7,031,100 km (0.064 R)
• M8: 7,797,490 km (0.073 R)
• M9: 11,132,924 km (0.115 R)
• M10: 12,069,407 km (0.11 R)
• M11: 12,687,096 km (0.074 R)
• M12: 14,041,406 km (0.085 R)
• M13: 17,483,802 km (0.098 R)
• M14: 27,263,314 km (0.062 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: 501 - 13,726 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit