🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.65 AU - 0.75 AU

Year: 267 Days

Day: 17.3 Hours

Environment

Temp: -38 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.82 AU - 1.04 AU

Year: 409 Days

Day: 26.7 Hours

Environment

Temp: -58 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.48 AU - 1.64 AU

Year: 890 Days

Day: 32.3 Hours

Environment

Temp: -113 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.7

Radius: 13.2

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.27 AU - 2.31 AU

Year: 1582 Days

Day: 14.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,693,977 km

• M1: 164,258 km (0.047 R)
• M2: 685,009 km (0.049 R)
• M3: 1,176,288 km (0.117 R)
• M4: 1,713,195 km (0.101 R)
• M5: 2,249,653 km (0.062 R)
• M6: 3,371,338 km (0.083 R)
• M7: 4,458,615 km (0.082 R)
• M8: 4,974,129 km (0.105 R)
• M9: 6,057,517 km (0.069 R)
• M10: 6,571,086 km (0.072 R)
• M11: 7,215,404 km (0.09 R)
• M12: 7,632,633 km (0.118 R)
• M13: 8,602,027 km (0.096 R)
• M14: 9,558,706 km (0.112 R)
• M15: 9,998,972 km (0.094 R)
• M16: 10,819,068 km (0.108 R)
• M17: 11,826,011 km (0.112 R)
• M18: 12,556,198 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.7

Radius: 12.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 2.13 AU - 3.21 AU

Year: 1992 Days

Day: 13.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,693,977 km

• M1: 164,109 km (0.066 R)
• M2: 666,309 km (0.035 R)
• M3: 1,545,346 km (0.076 R)
• M4: 1,980,975 km (0.096 R)
• M5: 2,476,144 km (0.112 R)
• M6: 3,093,235 km (0.093 R)
• M7: 4,111,847 km (0.1 R)
• M8: 5,906,124 km (0.104 R)
• M9: 6,333,226 km (0.045 R)
• M10: 7,740,044 km (0.038 R)
• M11: 8,624,766 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 392

Radius: 8.1

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 7 AU - 7.08 AU

Year: 8528 Days

Day: 6.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 52,693,977 km

• M1: 103,821 km (0.051 R)
• M2: 361,279 km (0.116 R)
• M3: 685,607 km (0.09 R)
• M4: 1,184,666 km (0.109 R)
• M5: 1,442,423 km (0.045 R)
• M6: 2,384,740 km (0.056 R)
• M7: 3,161,452 km (0.073 R)
• M8: 3,484,583 km (0.119 R)
• M9: 3,925,448 km (0.108 R)
• M10: 4,642,471 km (0.068 R)
• M11: 5,504,454 km (0.029 R)
• M12: 6,744,620 km (0.051 R)
• M13: 7,282,125 km (0.099 R)
• M14: 8,201,105 km (0.097 R)
• M15: 10,978,988 km (0.116 R)
• M16: 11,722,639 km (0.083 R)
• M17: 14,797,922 km (0.078 R)
• M18: 15,643,300 km (0.098 R)
• M19: 17,298,151 km (0.087 R)
• M20: 19,136,709 km (0.08 R)
• M21: 21,026,878 km (0.075 R)
• M22: 23,038,222 km (0.076 R)
• M23: 29,178,017 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.4

Radius: 11.7

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 7.16 AU - 10.04 AU

Year: 11515 Days

Day: 5.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 52,693,977 km

• M1: 146,307 km (0.112 R)
• M2: 523,293 km (0.057 R)
• M3: 1,202,916 km (0.097 R)
• M4: 1,916,349 km (0.095 R)
• M5: 2,284,659 km (0.115 R)
• M6: 2,764,269 km (0.118 R)
• M7: 3,714,515 km (0.093 R)
• M8: 4,122,768 km (0.108 R)
• M9: 7,157,211 km (0.092 R)
• M10: 9,423,319 km (0.049 R)
• M11: 10,240,124 km (0.057 R)
• M12: 11,495,998 km (0.052 R)
• M13: 12,072,997 km (0.053 R)
• M14: 15,321,814 km (0.098 R)
• M15: 16,741,498 km (0.119 R)
• M16: 18,015,623 km (0.111 R)
• M17: 18,953,153 km (0.078 R)
• M18: 20,005,274 km (0.094 R)
• M19: 22,314,318 km (0.059 R)
• M20: 23,304,207 km (0.068 R)
• M21: 24,322,968 km (0.046 R)
• M22: 29,225,141 km (0.101 R)
• M23: 30,519,013 km (0.081 R)
• M24: 32,416,811 km (0.117 R)
• M25: 39,354,113 km (0.116 R)
• M26: 41,331,797 km (0.103 R)
• M27: 42,141,122 km (0.077 R)
• M28: 46,347,066 km (0.04 R)
• M29: 47,074,261 km (0.072 R)
• M30: 47,809,086 km (0.064 R)
• M31: 52,222,522 km (0.093 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 262 - 11,948 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit