🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.96 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.18

Radius: 0.5

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.71 AU - 2.13 AU

Year: 944 Days

Day: 47 Hours

Environment

Temp: -53 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.8 AU - 2.4 AU

Year: 1080 Days

Day: 32.7 Hours

Environment

Temp: -55 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1.74 AU - 2.66 AU

Year: 1158 Days

Day: 37.1 Hours

Environment

Temp: -75 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.41

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.17 AU - 5.25 AU

Year: 3065 Days

Day: 40.3 Hours

Environment

Temp: -128 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.79 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542.1

Radius: 9.2

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 5.27 AU - 5.45 AU

Year: 4402 Days

Day: 11.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,601,262 km

• M1: 115,041 km (0.053 R)
• M2: 490,083 km (0.106 R)
• M3: 875,447 km (0.047 R)
• M4: 1,209,648 km (0.088 R)
• M5: 1,549,535 km (0.083 R)
• M6: 1,849,179 km (0.03 R)
• M7: 3,119,564 km (0.083 R)
• M8: 3,482,938 km (0.1 R)
• M9: 4,481,204 km (0.092 R)
• M10: 5,149,907 km (0.115 R)
• M11: 6,904,989 km (0.07 R)
• M12: 7,424,692 km (0.1 R)
• M13: 7,970,275 km (0.109 R)
• M14: 10,591,679 km (0.045 R)
• M15: 15,856,626 km (0.087 R)
• M16: 16,703,799 km (0.113 R)
• M17: 17,879,938 km (0.114 R)
• M18: 18,365,532 km (0.095 R)
• M19: 18,859,953 km (0.089 R)
• M20: 19,490,359 km (0.086 R)
• M21: 21,127,857 km (0.026 R)
• M22: 22,014,673 km (0.12 R)
• M23: 23,935,510 km (0.065 R)
• M24: 24,377,123 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.9

Radius: 13.2

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.92 AU - 6.3 AU

Year: 5358 Days

Day: 9.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,601,262 km

• M1: 165,754 km (0.094 R)
• M2: 782,098 km (0.101 R)
• M3: 1,224,010 km (0.112 R)
• M4: 1,645,277 km (0.09 R)
• M5: 2,241,874 km (0.098 R)
• M6: 2,759,183 km (0.106 R)
• M7: 3,785,724 km (0.072 R)
• M8: 6,783,665 km (0.085 R)
• M9: 7,803,175 km (0.087 R)
• M10: 8,330,657 km (0.101 R)
• M11: 9,583,988 km (0.091 R)
• M12: 11,525,768 km (0.111 R)
• M13: 18,512,736 km (0.084 R)
• M14: 20,005,274 km (0.102 R)
• M15: 26,783,704 km (0.096 R)
• M16: 30,779,313 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.6

Radius: 10.7

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 10.92 AU - 12.76 AU

Year: 14453 Days

Day: 14 Hours

Environment

Temp: -179 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 70,601,262 km

• M1: 133,441 km (0.105 R)
• M2: 543,489 km (0.101 R)
• M3: 1,051,673 km (0.113 R)
• M4: 1,586,485 km (0.115 R)
• M5: 2,983,879 km (0.087 R)
• M6: 5,960,578 km (0.069 R)
• M7: 10,169,364 km (0.114 R)
• M8: 13,647,963 km (0.074 R)
• M9: 14,202,373 km (0.09 R)
• M10: 17,282,593 km (0.043 R)
• M11: 21,331,609 km (0.065 R)
• M12: 22,458,680 km (0.082 R)
• M13: 25,139,025 km (0.091 R)
• M14: 27,694,455 km (0.118 R)
• M15: 29,952,486 km (0.094 R)
• M16: 32,697,906 km (0.055 R)
• M17: 34,321,791 km (0.102 R)
• M18: 35,476,985 km (0.095 R)
• M19: 36,657,911 km (0.084 R)
• M20: 58,555,449 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 485.6

Radius: 5.5

Gravity: 16.05 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 12.22 AU - 18.38 AU

Year: 21231 Days

Day: 15.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 70,601,262 km

• M1: 68,366 km (0.039 R)
• M2: 676,033 km (0.083 R)
• M3: 937,829 km (0.101 R)
• M4: 1,487,751 km (0.089 R)
• M5: 1,934,899 km (0.092 R)
• M6: 4,124,862 km (0.099 R)
• M7: 4,719,214 km (0.059 R)
• M8: 5,406,766 km (0.102 R)
• M9: 5,598,401 km (0.113 R)
• M10: 5,914,352 km (0.093 R)
• M11: 7,917,617 km (0.047 R)
• M12: 8,315,846 km (0.08 R)
• M13: 11,113,177 km (0.08 R)
• M14: 12,722,401 km (0.105 R)
• M15: 13,477,422 km (0.104 R)
• M16: 13,901,532 km (0.108 R)
• M17: 16,078,031 km (0.094 R)
• M18: 16,474,914 km (0.071 R)
• M19: 20,438,659 km (0.101 R)
• M20: 21,282,092 km (0.105 R)
• M21: 22,051,025 km (0.118 R)
• M22: 24,054,440 km (0.096 R)
• M23: 25,419,670 km (0.119 R)
• M24: 25,634,194 km (0.091 R)
• M25: 30,908,566 km (0.118 R)
• M26: 33,027,620 km (0.08 R)
• M27: 33,539,843 km (0.046 R)
• M28: 36,725,679 km (0.094 R)
• M29: 39,817,867 km (0.054 R)
• M30: 50,465,346 km (0.088 R)
• M31: 54,991,429 km (0.056 R)
• M32: 55,891,859 km (0.025 R)
• M33: 60,160,335 km (0.101 R)
• M34: 62,862,222 km (0.109 R)
• M35: 63,254,617 km (0.118 R)
• M36: 66,860,674 km (0.116 R)

Kuiper Belt

Range: 30.9 - 55.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 414 - 16,943 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit