🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.82 AU - 1.26 AU

Year: 470 Days

Day: 46.8 Hours

Environment

Temp: -74 °C

Axial Tilt: 22.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.06 AU - 1.3 AU

Year: 568 Days

Day: 29.4 Hours

Environment

Temp: -88 °C

Axial Tilt: 1.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.96 AU - 1.46 AU

Year: 590 Days

Day: 45.7 Hours

Environment

Temp: -73 °C

Axial Tilt: 3.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.23 AU - 1.45 AU

Year: 687 Days

Day: 33.5 Hours

Environment

Temp: -84 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 31,949,440 km

• M1: 43,383 km (0.074 R)
• M2: 76,145 km (0.101 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.67 AU - 2.39 AU

Year: 1281 Days

Day: 24.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.81 AU - 2.71 AU

Year: 1505 Days

Day: 47.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.25 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.9

Radius: 11.3

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.94 AU - 4.52 AU

Year: 3853 Days

Day: 11.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,949,440 km

• M1: 140,622 km (0.074 R)
• M2: 1,517,371 km (0.059 R)
• M3: 2,418,549 km (0.068 R)
• M4: 3,039,829 km (0.037 R)
• M5: 3,454,215 km (0.082 R)
• M6: 3,885,954 km (0.054 R)
• M7: 4,331,606 km (0.084 R)
• M8: 4,858,640 km (0.096 R)
• M9: 6,881,053 km (0.092 R)
• M10: 7,313,092 km (0.079 R)
• M11: 8,300,288 km (0.095 R)
• M12: 8,934,134 km (0.11 R)
• M13: 11,324,260 km (0.116 R)
• M14: 11,753,306 km (0.092 R)
• M15: 12,735,416 km (0.091 R)
• M16: 13,819,702 km (0.109 R)
• M17: 15,586,602 km (0.091 R)
• M18: 16,993,271 km (0.057 R)
• M19: 22,450,452 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 252.8

Radius: 4.7

Gravity: 11.44 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 8.94 AU - 11.28 AU

Year: 14238 Days

Day: 20.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 31,949,440 km

• M1: 58,493 km (0.045 R)
• M2: 208,091 km (0.056 R)
• M3: 594,053 km (0.106 R)
• M4: 894,894 km (0.039 R)
• M5: 1,085,781 km (0.082 R)
• M6: 1,243,607 km (0.095 R)
• M7: 1,634,357 km (0.09 R)
• M8: 1,921,585 km (0.087 R)
• M9: 2,798,079 km (0.057 R)
• M10: 3,232,212 km (0.115 R)
• M11: 4,599,087 km (0.082 R)
• M12: 6,204,123 km (0.047 R)
• M13: 7,170,824 km (0.084 R)
• M14: 7,447,431 km (0.112 R)
• M15: 7,772,208 km (0.064 R)
• M16: 7,979,850 km (0.035 R)
• M17: 8,319,886 km (0.087 R)
• M18: 8,938,174 km (0.097 R)
• M19: 9,491,985 km (0.112 R)
• M20: 10,365,337 km (0.112 R)
• M21: 10,566,397 km (0.095 R)
• M22: 10,718,987 km (0.049 R)
• M23: 13,245,844 km (0.088 R)
• M24: 14,773,239 km (0.031 R)
• M25: 15,677,707 km (0.051 R)
• M26: 19,437,551 km (0.069 R)
• M27: 19,590,140 km (0.104 R)
• M28: 21,811,220 km (0.081 R)
• M29: 25,723,354 km (0.033 R)
• M30: 26,558,110 km (0.084 R)
• M31: 34,340,640 km (0.078 R)
• M32: 35,125,730 km (0.112 R)
• M33: 36,152,569 km (0.111 R)
• M34: 37,316,890 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 28.7

Radius: 4

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 14.26 AU - 16.4 AU

Year: 26586 Days

Day: 17.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,949,440 km

• M1: 58,044 km (0.11 R)
• M2: 1,538,016 km (0.096 R)
• M3: 1,913,058 km (0.033 R)
• M4: 2,621,553 km (0.109 R)
• M5: 3,511,810 km (0.067 R)
• M6: 3,825,666 km (0.078 R)
• M7: 4,509,329 km (0.052 R)
• M8: 5,591,968 km (0.057 R)
• M9: 6,601,305 km (0.104 R)
• M10: 8,769,876 km (0.104 R)
• M11: 11,661,004 km (0.055 R)
• M12: 14,275,227 km (0.071 R)
• M13: 14,956,047 km (0.074 R)
• M14: 17,318,497 km (0.113 R)
• M15: 17,702,664 km (0.097 R)
• M16: 23,227,164 km (0.103 R)
• M17: 23,616,118 km (0.11 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 12,887 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit