🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.44 AU - 0.66 AU

Year: 268 Days

Day: 31.1 Hours

Environment

Temp: -119 °C

Axial Tilt: 25.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.1

Radius: 10.1

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.65 AU - 0.99 AU

Year: 487 Days

Day: 13.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 61,202,463 km

• M1: 125,662 km (0.081 R)
• M2: 533,915 km (0.113 R)
• M3: 1,003,203 km (0.11 R)
• M4: 1,371,364 km (0.113 R)
• M5: 1,888,374 km (0.109 R)
• M6: 2,280,021 km (0.091 R)
• M7: 3,113,132 km (0.067 R)
• M8: 3,640,614 km (0.109 R)
• M9: 4,037,048 km (0.119 R)
• M10: 4,422,263 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.5

Radius: 9.2

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.85 AU - 1.03 AU

Year: 598 Days

Day: 9.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,202,463 km

• M1: 114,442 km (0.043 R)
• M2: 517,160 km (0.061 R)
• M3: 827,127 km (0.11 R)
• M4: 1,380,788 km (0.071 R)
• M5: 1,809,985 km (0.108 R)
• M6: 2,252,495 km (0.075 R)
• M7: 2,791,347 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.9

Radius: 14.7

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.87 AU - 1.39 AU

Year: 788 Days

Day: 14 Hours

Environment

Temp: -172 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,202,463 km

• M1: 196,721 km (0.104 R)
• M2: 784,042 km (0.118 R)
• M3: 1,259,764 km (0.119 R)
• M4: 2,544,061 km (0.061 R)
• M5: 3,058,977 km (0.083 R)
• M6: 4,175,875 km (0.078 R)
• M7: 5,120,586 km (0.102 R)
• M8: 5,601,243 km (0.069 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.3

Radius: 14

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.15 AU - 1.17 AU

Year: 820 Days

Day: 5.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,202,463 km

• M1: 174,132 km (0.117 R)
• M2: 619,934 km (0.041 R)
• M3: 1,087,876 km (0.101 R)
• M4: 1,671,307 km (0.103 R)
• M5: 2,594,925 km (0.111 R)
• M6: 3,215,307 km (0.072 R)
• M7: 4,104,068 km (0.093 R)
• M8: 5,117,294 km (0.065 R)
• M9: 5,986,757 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.1

Radius: 8

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.68 AU - 2.24 AU

Year: 1800 Days

Day: 14.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 61,202,463 km

• M1: 100,231 km (0.05 R)
• M2: 388,805 km (0.06 R)
• M3: 774,319 km (0.11 R)
• M4: 1,061,247 km (0.113 R)
• M5: 1,652,458 km (0.081 R)
• M6: 2,361,402 km (0.032 R)
• M7: 2,990,910 km (0.099 R)
• M8: 3,392,281 km (0.118 R)
• M9: 3,785,275 km (0.12 R)
• M10: 4,130,696 km (0.061 R)
• M11: 4,383,218 km (0.085 R)
• M12: 5,113,554 km (0.038 R)
• M13: 5,479,920 km (0.055 R)
• M14: 5,942,476 km (0.102 R)
• M15: 6,642,145 km (0.077 R)
• M16: 7,011,951 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.3

Radius: 12.4

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.01 AU - 2.21 AU

Year: 2011 Days

Day: 5.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,202,463 km

• M1: 154,834 km (0.105 R)
• M2: 626,965 km (0.048 R)
• M3: 1,610,421 km (0.078 R)
• M4: 2,913,718 km (0.119 R)
• M5: 4,147,601 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 819

Radius: 12.8

Gravity: 5 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 3.2 AU - 4.26 AU

Year: 4726 Days

Day: 9.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,202,463 km

• M1: 168,447 km (0.111 R)
• M2: 705,204 km (0.088 R)
• M3: 1,184,366 km (0.032 R)
• M4: 1,701,975 km (0.12 R)
• M5: 2,109,779 km (0.089 R)
• M6: 2,704,281 km (0.062 R)
• M7: 3,286,665 km (0.09 R)
• M8: 3,793,952 km (0.099 R)
• M9: 6,401,742 km (0.109 R)
• M10: 7,026,762 km (0.098 R)
• M11: 8,171,036 km (0.117 R)
• M12: 9,067,725 km (0.074 R)
• M13: 9,602,987 km (0.114 R)
• M14: 10,646,581 km (0.105 R)
• M15: 11,336,227 km (0.097 R)
• M16: 11,812,547 km (0.094 R)
• M17: 13,010,228 km (0.078 R)
• M18: 16,659,967 km (0.098 R)
• M19: 19,554,386 km (0.086 R)
• M20: 20,449,431 km (0.053 R)
• M21: 21,227,938 km (0.07 R)
• M22: 21,660,874 km (0.095 R)
• M23: 23,222,676 km (0.039 R)
• M24: 24,148,238 km (0.12 R)
• M25: 30,044,339 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629

Radius: 14.2

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.18 AU - 6.64 AU

Year: 8255 Days

Day: 9.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,202,463 km

• M1: 182,360 km (0.098 R)
• M2: 1,007,093 km (0.098 R)
• M3: 1,539,512 km (0.102 R)
• M4: 3,010,657 km (0.086 R)
• M5: 5,067,927 km (0.052 R)
• M6: 6,748,360 km (0.027 R)
• M7: 10,383,738 km (0.041 R)
• M8: 11,595,331 km (0.116 R)
• M9: 17,744,701 km (0.11 R)
• M10: 19,772,650 km (0.114 R)
• M11: 27,711,360 km (0.108 R)
• M12: 29,934,983 km (0.113 R)
• M13: 32,275,292 km (0.047 R)
• M14: 33,650,695 km (0.085 R)
• M15: 39,187,910 km (0.061 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338.4

Radius: 6.9

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 7.59 AU - 12.27 AU

Year: 20527 Days

Day: 17.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 61,202,463 km

• M1: 85,869 km (0.097 R)
• M2: 336,146 km (0.069 R)
• M3: 574,755 km (0.116 R)
• M4: 1,197,681 km (0.05 R)
• M5: 1,687,015 km (0.085 R)
• M6: 2,342,553 km (0.052 R)
• M7: 3,181,498 km (0.116 R)
• M8: 3,573,594 km (0.088 R)
• M9: 3,909,890 km (0.087 R)
• M10: 4,810,619 km (0.056 R)
• M11: 5,544,396 km (0.111 R)
• M12: 5,918,989 km (0.095 R)
• M13: 6,230,751 km (0.074 R)
• M14: 7,588,651 km (0.088 R)
• M15: 9,392,203 km (0.118 R)
• M16: 10,934,258 km (0.069 R)
• M17: 11,404,145 km (0.035 R)
• M18: 13,155,487 km (0.112 R)
• M19: 14,792,985 km (0.119 R)
• M20: 15,587,201 km (0.046 R)
• M21: 17,418,129 km (0.072 R)
• M22: 20,959,110 km (0.043 R)
• M23: 22,613,513 km (0.111 R)
• M24: 31,612,872 km (0.12 R)
• M25: 32,686,088 km (0.115 R)
• M26: 38,017,905 km (0.118 R)
• M27: 38,554,064 km (0.077 R)
• M28: 44,343,502 km (0.069 R)
• M29: 48,143,736 km (0.106 R)
• M30: 51,173,093 km (0.09 R)
• M31: 54,157,870 km (0.072 R)
• M32: 55,865,380 km (0.118 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 344 - 20,244 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit