🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.64 AU - 0.68 AU

Year: 346 Days

Day: 22.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 19.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 37,111,743 km

• M1: 38,447 km (0.07 R)
• M2: 461,809 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.1

Radius: 11.7

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.71 AU - 0.75 AU

Year: 403 Days

Day: 12.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,111,743 km

• M1: 145,559 km (0.055 R)
• M2: 546,032 km (0.095 R)
• M3: 959,371 km (0.069 R)
• M4: 1,643,781 km (0.119 R)
• M5: 2,471,955 km (0.117 R)
• M6: 2,861,658 km (0.063 R)
• M7: 3,407,092 km (0.094 R)
• M8: 3,816,840 km (0.116 R)
• M9: 4,232,573 km (0.119 R)
• M10: 4,928,203 km (0.095 R)
• M11: 5,343,187 km (0.089 R)

Asteroid Belt

Center: 3.17 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.5

Radius: 11.7

Gravity: 6.91 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.47 AU - 5.73 AU

Year: 8557 Days

Day: 14.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,111,743 km

• M1: 145,559 km (0.102 R)
• M2: 922,121 km (0.094 R)
• M3: 1,427,463 km (0.101 R)
• M4: 1,837,810 km (0.106 R)
• M5: 3,146,193 km (0.057 R)
• M6: 3,698,508 km (0.044 R)
• M7: 4,286,577 km (0.086 R)
• M8: 5,061,046 km (0.063 R)
• M9: 5,787,493 km (0.114 R)
• M10: 6,175,998 km (0.087 R)
• M11: 6,810,892 km (0.113 R)
• M12: 7,489,019 km (0.044 R)
• M13: 8,211,427 km (0.102 R)
• M14: 10,765,063 km (0.094 R)
• M15: 11,191,866 km (0.114 R)
• M16: 13,013,668 km (0.083 R)
• M17: 16,453,671 km (0.114 R)
• M18: 17,674,540 km (0.034 R)
• M19: 21,447,099 km (0.119 R)
• M20: 23,521,124 km (0.034 R)
• M21: 24,150,482 km (0.105 R)
• M22: 30,013,970 km (0.116 R)
• M23: 31,075,517 km (0.108 R)
• M24: 33,049,311 km (0.117 R)
• M25: 35,573,326 km (0.084 R)
• M26: 45,142,953 km (0.117 R)
• M27: 46,676,780 km (0.054 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.5

Radius: 3.4

Gravity: 77.38 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.82 AU - 7.78 AU

Year: 12735 Days

Day: 24.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 37,111,743 km

• M1: 43,084 km (0.109 R)
• M2: 229,782 km (0.066 R)
• M3: 464,202 km (0.103 R)
• M4: 636,689 km (0.047 R)
• M5: 810,372 km (0.102 R)
• M6: 924,964 km (0.083 R)
• M7: 1,266,496 km (0.031 R)
• M8: 1,605,484 km (0.064 R)
• M9: 2,272,990 km (0.113 R)
• M10: 2,417,502 km (0.12 R)
• M11: 2,657,157 km (0.103 R)
• M12: 3,082,913 km (0.058 R)
• M13: 3,260,186 km (0.119 R)
• M14: 3,580,027 km (0.095 R)
• M15: 4,865,072 km (0.064 R)
• M16: 6,029,692 km (0.097 R)
• M17: 6,147,575 km (0.056 R)
• M18: 7,190,870 km (0.109 R)
• M19: 9,674,644 km (0.102 R)
• M20: 10,501,322 km (0.099 R)
• M21: 11,920,407 km (0.114 R)
• M22: 12,547,671 km (0.086 R)
• M23: 14,211,499 km (0.099 R)
• M24: 15,792,449 km (0.062 R)
• M25: 16,091,944 km (0.096 R)
• M26: 16,625,260 km (0.093 R)
• M27: 17,646,714 km (0.104 R)
• M28: 18,213,690 km (0.038 R)
• M29: 19,128,930 km (0.04 R)
• M30: 19,469,265 km (0.052 R)
• M31: 19,987,323 km (0.097 R)
• M32: 25,375,090 km (0.04 R)
• M33: 25,889,258 km (0.038 R)
• M34: 29,458,364 km (0.052 R)
• M35: 32,853,936 km (0.098 R)
• M36: 34,960,723 km (0.118 R)
• M37: 42,824,784 km (0.049 R)
• M38: 45,485,532 km (0.114 R)
• M39: 55,147,909 km (0.091 R)
• M40: 57,231,508 km (0.04 R)
• M41: 60,636,954 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.3

Radius: 5.2

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 6.13 AU - 8.85 AU

Year: 13235 Days

Day: 18.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,111,743 km

• M1: 65,075 km (0.117 R)
• M2: 226,940 km (0.104 R)
• M3: 654,191 km (0.119 R)
• M4: 1,108,371 km (0.099 R)
• M5: 1,300,005 km (0.107 R)
• M6: 1,563,148 km (0.087 R)
• M7: 2,339,112 km (0.045 R)
• M8: 3,640,614 km (0.111 R)
• M9: 4,824,232 km (0.101 R)
• M10: 9,530,581 km (0.069 R)
• M11: 14,711,604 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.1

Radius: 3.7

Gravity: 12.79 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.81 AU - 9.35 AU

Year: 13475 Days

Day: 20 Hours

Environment

Temp: -224 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,111,743 km

• M1: 47,273 km (0.112 R)
• M2: 584,479 km (0.092 R)
• M3: 712,684 km (0.063 R)
• M4: 1,283,550 km (0.09 R)
• M5: 1,732,493 km (0.057 R)
• M6: 2,831,588 km (0.104 R)
• M7: 3,225,031 km (0.081 R)
• M8: 4,300,789 km (0.058 R)
• M9: 4,991,782 km (0.105 R)
• M10: 8,879,830 km (0.106 R)
• M11: 14,465,217 km (0.066 R)
• M12: 16,316,939 km (0.087 R)
• M13: 18,529,791 km (0.085 R)
• M14: 29,381,770 km (0.099 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 309 - 13,678 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit