🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.61 AU - 0.69 AU

Year: 187 Days

Day: 42.5 Hours

Environment

Temp: 229 °C

Axial Tilt: 25.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.06 AU - 1.7 AU

Year: 578 Days

Day: 27.3 Hours

Environment

Temp: 1 °C

Axial Tilt: 35.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 39,759,812 km

• M1: 407,953 km (0.084 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.41 AU - 2.21 AU

Year: 868 Days

Day: 28.6 Hours

Environment

Temp: -56 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.05 AU - 2.21 AU

Year: 1108 Days

Day: 43.1 Hours

Environment

Temp: -65 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2.38 AU - 3.42 AU

Year: 1760 Days

Day: 29 Hours

Environment

Temp: -103 °C

Axial Tilt: 161.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 39,759,812 km

• M1: 29,620 km (0.098 R)
• M2: 56,548 km (0.064 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.34 AU - 5.38 AU

Year: 3245 Days

Day: 34.7 Hours

Environment

Temp: -115 °C

Axial Tilt: 24.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 39,759,812 km

• M1: 212,429 km (0.077 R)
• M2: 2,304,106 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.4

Radius: 10.1

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.21 AU - 6.63 AU

Year: 4498 Days

Day: 5.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 39,759,812 km

• M1: 168,298 km (0.12 R)
• M2: 503,247 km (0.085 R)
• M3: 926,011 km (0.09 R)
• M4: 1,452,595 km (0.087 R)
• M5: 1,978,282 km (0.106 R)
• M6: 2,530,897 km (0.117 R)
• M7: 3,183,742 km (0.099 R)
• M8: 3,671,880 km (0.052 R)
• M9: 4,097,934 km (0.085 R)
• M10: 4,462,205 km (0.07 R)
• M11: 4,973,381 km (0.094 R)
• M12: 5,442,221 km (0.105 R)
• M13: 6,775,437 km (0.117 R)
• M14: 7,858,077 km (0.112 R)
• M15: 8,938,922 km (0.046 R)
• M16: 9,712,791 km (0.098 R)
• M17: 10,913,314 km (0.079 R)
• M18: 11,661,603 km (0.098 R)
• M19: 12,117,428 km (0.099 R)
• M20: 12,823,679 km (0.116 R)
• M21: 19,241,727 km (0.074 R)
• M22: 20,333,193 km (0.12 R)
• M23: 21,330,113 km (0.09 R)
• M24: 23,782,471 km (0.094 R)
• M25: 25,039,093 km (0.065 R)
• M26: 25,492,973 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.2

Radius: 8.3

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.97 AU - 9.83 AU

Year: 10273 Days

Day: 11 Hours

Environment

Temp: -166 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 39,759,812 km

• M1: 104,270 km (0.103 R)
• M2: 365,617 km (0.116 R)
• M3: 689,347 km (0.087 R)
• M4: 964,308 km (0.055 R)
• M5: 1,326,185 km (0.029 R)
• M6: 2,775,489 km (0.084 R)
• M7: 3,396,769 km (0.066 R)
• M8: 4,053,654 km (0.096 R)
• M9: 5,387,319 km (0.112 R)
• M10: 7,030,502 km (0.085 R)
• M11: 7,590,895 km (0.051 R)
• M12: 8,051,657 km (0.105 R)
• M13: 8,354,592 km (0.097 R)
• M14: 9,356,599 km (0.111 R)
• M15: 9,643,228 km (0.054 R)
• M16: 10,084,243 km (0.077 R)
• M17: 10,848,987 km (0.112 R)
• M18: 11,761,983 km (0.103 R)
• M19: 12,436,520 km (0.075 R)
• M20: 13,077,397 km (0.065 R)
• M21: 13,375,845 km (0.035 R)
• M22: 15,067,049 km (0.118 R)
• M23: 20,106,851 km (0.09 R)
• M24: 23,264,264 km (0.092 R)
• M25: 24,869,300 km (0.103 R)
• M26: 25,235,665 km (0.112 R)
• M27: 29,202,252 km (0.111 R)
• M28: 32,901,658 km (0.108 R)
• M29: 33,565,723 km (0.072 R)
• M30: 34,692,195 km (0.09 R)
• M31: 38,344,777 km (0.086 R)
• M32: 39,824,898 km (0.064 R)
• M33: 41,728,232 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 62.3

Radius: 3.7

Gravity: 4.55 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 13.37 AU - 20.69 AU

Year: 25051 Days

Day: 23.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 39,759,812 km

• M1: 69,563 km (0.106 R)
• M2: 227,688 km (0.036 R)
• M3: 435,180 km (0.117 R)
• M4: 674,088 km (0.101 R)
• M5: 994,676 km (0.101 R)
• M6: 1,371,962 km (0.105 R)
• M7: 2,329,987 km (0.098 R)
• M8: 2,456,547 km (0.093 R)
• M9: 3,593,042 km (0.042 R)
• M10: 3,911,536 km (0.086 R)
• M11: 4,437,970 km (0.116 R)
• M12: 6,127,379 km (0.072 R)
• M13: 6,945,979 km (0.103 R)
• M14: 7,517,443 km (0.034 R)
• M15: 14,807,496 km (0.103 R)
• M16: 16,934,629 km (0.108 R)
• M17: 20,917,971 km (0.07 R)
• M18: 24,092,587 km (0.035 R)
• M19: 26,287,936 km (0.072 R)
• M20: 28,517,543 km (0.117 R)
• M21: 28,997,303 km (0.084 R)
• M22: 32,612,336 km (0.112 R)
• M23: 33,348,507 km (0.112 R)
• M24: 34,744,853 km (0.054 R)
• M25: 34,963,117 km (0.117 R)

Kuiper Belt

Range: 30.8 - 52.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 350 - 17,056 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit