🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.53 AU - 0.69 AU

Year: 211 Days

Day: 37.8 Hours

Environment

Temp: -2 °C

Axial Tilt: 50 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.62 AU - 0.9 AU

Year: 293 Days

Day: 32.1 Hours

Environment

Temp: -37 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.71

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.81 AU - 0.93 AU

Year: 359 Days

Day: 30.1 Hours

Environment

Temp: -50 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.98 AU - 1 AU

Year: 436 Days

Day: 46.7 Hours

Environment

Temp: -59 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,412,836 km

• M1: 54,454 km (0.074 R)
• M2: 112,049 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.9

Radius: 11.7

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.13 AU - 7.45 AU

Year: 6987 Days

Day: 10.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 75,412,836 km

• M1: 145,559 km (0.115 R)
• M2: 750,533 km (0.116 R)
• M3: 1,196,933 km (0.045 R)
• M4: 1,691,354 km (0.111 R)
• M5: 2,450,563 km (0.116 R)
• M6: 2,871,980 km (0.055 R)
• M7: 3,509,566 km (0.12 R)
• M8: 3,977,807 km (0.12 R)
• M9: 5,291,426 km (0.076 R)
• M10: 6,347,886 km (0.114 R)
• M11: 7,219,892 km (0.112 R)
• M12: 9,243,204 km (0.098 R)
• M13: 10,497,881 km (0.116 R)
• M14: 11,331,889 km (0.113 R)
• M15: 12,767,729 km (0.092 R)
• M16: 13,935,490 km (0.077 R)
• M17: 14,885,587 km (0.115 R)
• M18: 19,667,931 km (0.102 R)
• M19: 20,719,754 km (0.111 R)
• M20: 21,734,925 km (0.117 R)
• M21: 22,404,974 km (0.048 R)
• M22: 24,021,828 km (0.068 R)
• M23: 26,802,403 km (0.059 R)
• M24: 30,896,897 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.6

Radius: 10

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 5.83 AU - 7.55 AU

Year: 7664 Days

Day: 6.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 75,412,836 km

• M1: 124,465 km (0.06 R)
• M2: 619,186 km (0.096 R)
• M3: 1,408,165 km (0.11 R)
• M4: 1,781,860 km (0.113 R)
• M5: 2,236,638 km (0.111 R)
• M6: 3,129,587 km (0.091 R)
• M7: 3,461,695 km (0.11 R)
• M8: 4,015,656 km (0.109 R)
• M9: 4,433,183 km (0.086 R)
• M10: 5,060,896 km (0.094 R)
• M11: 6,556,127 km (0.072 R)
• M12: 9,321,743 km (0.084 R)
• M13: 9,643,528 km (0.064 R)
• M14: 10,523,612 km (0.077 R)
• M15: 12,443,252 km (0.093 R)
• M16: 14,856,116 km (0.067 R)
• M17: 15,687,730 km (0.059 R)
• M18: 16,963,052 km (0.108 R)
• M19: 17,871,410 km (0.114 R)
• M20: 19,851,039 km (0.12 R)
• M21: 20,317,485 km (0.056 R)
• M22: 27,557,873 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140

Radius: 13.6

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 6.62 AU - 10.42 AU

Year: 11015 Days

Day: 6.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,412,836 km

• M1: 179,368 km (0.106 R)
• M2: 798,703 km (0.072 R)
• M3: 1,367,025 km (0.12 R)
• M4: 2,248,157 km (0.07 R)
• M5: 3,180,002 km (0.112 R)
• M6: 4,551,964 km (0.114 R)
• M7: 5,043,393 km (0.049 R)
• M8: 6,194,997 km (0.098 R)
• M9: 7,168,730 km (0.114 R)
• M10: 9,794,173 km (0.109 R)
• M11: 13,262,599 km (0.077 R)
• M12: 14,054,421 km (0.114 R)
• M13: 14,765,759 km (0.119 R)
• M14: 16,922,810 km (0.063 R)
• M15: 23,487,314 km (0.053 R)
• M16: 24,411,680 km (0.097 R)
• M17: 25,681,766 km (0.098 R)
• M18: 28,267,266 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 730.7

Radius: 5.3

Gravity: 26.01 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 10.06 AU - 14.54 AU

Year: 19107 Days

Day: 24.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,412,836 km

• M1: 68,815 km (0.083 R)
• M2: 277,055 km (0.113 R)
• M3: 715,078 km (0.07 R)
• M4: 1,215,184 km (0.117 R)
• M5: 4,604,473 km (0.112 R)
• M6: 4,816,154 km (0.027 R)
• M7: 5,373,705 km (0.058 R)
• M8: 6,660,845 km (0.038 R)
• M9: 7,592,840 km (0.077 R)
• M10: 10,002,114 km (0.108 R)
• M11: 12,330,305 km (0.105 R)
• M12: 13,369,113 km (0.09 R)
• M13: 13,873,258 km (0.102 R)
• M14: 14,615,413 km (0.065 R)
• M15: 18,906,179 km (0.041 R)
• M16: 23,238,683 km (0.099 R)
• M17: 24,390,138 km (0.075 R)
• M18: 28,424,044 km (0.094 R)
• M19: 29,136,878 km (0.08 R)
• M20: 33,931,041 km (0.109 R)
• M21: 39,079,153 km (0.103 R)
• M22: 39,960,284 km (0.114 R)
• M23: 45,365,405 km (0.119 R)
• M24: 46,175,178 km (0.095 R)
• M25: 51,237,869 km (0.108 R)
• M26: 54,810,865 km (0.116 R)
• M27: 60,671,810 km (0.079 R)
• M28: 70,116,971 km (0.112 R)
• M29: 73,841,659 km (0.079 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 334 - 18,822 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit