🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.5 AU - 0.56 AU

Year: 253 Days

Day: 29.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,153,086 km

• M1: 270,323 km (0.071 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.66

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.5 AU - 0.72 AU

Year: 313 Days

Day: 24.2 Hours

Environment

Temp: -127 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,153,086 km

• M1: 741,108 km (0.104 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.61 AU - 0.65 AU

Year: 328 Days

Day: 41.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.57 AU - 0.77 AU

Year: 360 Days

Day: 14.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,153,086 km

• M1: 103,821 km (0.102 R)
• M2: 896,241 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.4

Radius: 8.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.93 AU - 0.97 AU

Year: 607 Days

Day: 6 Hours

Environment

Temp: -150 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,153,086 km

• M1: 100,979 km (0.066 R)
• M2: 416,630 km (0.077 R)
• M3: 709,842 km (0.111 R)
• M4: 1,765,853 km (0.086 R)
• M5: 2,507,709 km (0.081 R)
• M6: 2,802,417 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.7

Radius: 9.7

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.02 AU - 1.26 AU

Year: 798 Days

Day: 5.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,153,086 km

• M1: 120,875 km (0.083 R)
• M2: 525,537 km (0.068 R)
• M3: 912,697 km (0.094 R)
• M4: 1,497,175 km (0.068 R)
• M5: 1,821,204 km (0.096 R)
• M6: 2,424,533 km (0.074 R)
• M7: 2,763,372 km (0.039 R)
• M8: 3,453,916 km (0.111 R)
• M9: 3,962,399 km (0.106 R)
• M10: 4,324,126 km (0.08 R)
• M11: 4,737,017 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202

Radius: 14.4

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.88 AU - 2.42 AU

Year: 2068 Days

Day: 5.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,153,086 km

• M1: 179,069 km (0.11 R)
• M2: 1,179,430 km (0.102 R)
• M3: 1,804,300 km (0.089 R)
• M4: 2,365,741 km (0.084 R)
• M5: 2,911,175 km (0.075 R)
• M6: 3,466,183 km (0.066 R)
• M7: 4,042,284 km (0.075 R)
• M8: 4,573,955 km (0.113 R)
• M9: 6,616,564 km (0.103 R)
• M10: 7,113,379 km (0.08 R)
• M11: 9,326,679 km (0.048 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.6

Radius: 8.8

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 4.19 AU - 5.89 AU

Year: 7423 Days

Day: 8.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,153,086 km

• M1: 109,506 km (0.068 R)
• M2: 570,117 km (0.119 R)
• M3: 1,779,915 km (0.036 R)
• M4: 2,458,043 km (0.092 R)
• M5: 3,335,135 km (0.09 R)
• M6: 3,656,920 km (0.085 R)
• M7: 4,167,797 km (0.096 R)
• M8: 4,679,122 km (0.097 R)
• M9: 5,083,485 km (0.083 R)
• M10: 5,511,186 km (0.063 R)
• M11: 5,827,286 km (0.057 R)
• M12: 6,239,428 km (0.094 R)
• M13: 6,641,547 km (0.11 R)
• M14: 8,564,628 km (0.089 R)
• M15: 9,061,741 km (0.095 R)
• M16: 13,567,480 km (0.062 R)
• M17: 13,902,729 km (0.102 R)
• M18: 14,540,015 km (0.081 R)
• M19: 14,992,549 km (0.113 R)
• M20: 15,662,598 km (0.06 R)
• M21: 18,195,140 km (0.103 R)
• M22: 19,741,085 km (0.054 R)
• M23: 21,501,852 km (0.084 R)

Asteroid Belt

Center: 6.73 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 800.7

Radius: 4.9

Gravity: 33.35 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.58 AU - 10.26 AU

Year: 16028 Days

Day: 18.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 69,153,086 km

• M1: 62,382 km (0.045 R)
• M2: 254,616 km (0.09 R)
• M3: 597,195 km (0.077 R)
• M4: 980,764 km (0.095 R)
• M5: 1,206,507 km (0.09 R)
• M6: 1,677,291 km (0.088 R)
• M7: 1,871,021 km (0.062 R)
• M8: 2,499,032 km (0.119 R)
• M9: 3,560,729 km (0.099 R)
• M10: 4,034,655 km (0.097 R)
• M11: 4,482,850 km (0.112 R)
• M12: 5,670,058 km (0.109 R)
• M13: 7,846,109 km (0.104 R)
• M14: 8,594,248 km (0.113 R)
• M15: 9,172,294 km (0.061 R)
• M16: 10,880,104 km (0.119 R)
• M17: 11,681,948 km (0.103 R)
• M18: 11,936,414 km (0.102 R)
• M19: 13,264,694 km (0.119 R)
• M20: 14,910,420 km (0.078 R)
• M21: 17,337,196 km (0.1 R)
• M22: 20,748,327 km (0.12 R)
• M23: 21,499,458 km (0.069 R)
• M24: 21,785,788 km (0.112 R)
• M25: 22,365,929 km (0.116 R)
• M26: 25,104,617 km (0.093 R)
• M27: 25,315,849 km (0.09 R)
• M28: 41,012,107 km (0.098 R)
• M29: 44,160,843 km (0.12 R)
• M30: 44,778,383 km (0.09 R)
• M31: 48,277,926 km (0.09 R)
• M32: 56,355,911 km (0.094 R)
• M33: 67,712,335 km (0.088 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 337 - 14,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit