🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.18

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.52 AU - 0.8 AU

Year: 341 Days

Day: 25.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.8

Radius: 12.3

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.56 AU - 0.9 AU

Year: 397 Days

Day: 7.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 56,668,212 km

• M1: 153,039 km (0.074 R)
• M2: 566,677 km (0.096 R)
• M3: 997,070 km (0.057 R)
• M4: 1,590,525 km (0.075 R)
• M5: 2,404,935 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.8

Radius: 14.4

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.68 AU - 2.04 AU

Year: 1613 Days

Day: 14.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,668,212 km

• M1: 179,218 km (0.059 R)
• M2: 670,797 km (0.039 R)
• M3: 1,235,978 km (0.088 R)
• M4: 1,783,506 km (0.088 R)
• M5: 2,455,649 km (0.049 R)
• M6: 3,262,580 km (0.064 R)
• M7: 3,831,351 km (0.101 R)
• M8: 4,408,799 km (0.029 R)
• M9: 5,582,843 km (0.079 R)
• M10: 6,827,348 km (0.088 R)
• M11: 7,298,880 km (0.057 R)
• M12: 7,876,627 km (0.11 R)
• M13: 9,503,953 km (0.101 R)
• M14: 9,993,437 km (0.087 R)
• M15: 10,672,462 km (0.062 R)
• M16: 11,418,357 km (0.109 R)
• M17: 13,054,209 km (0.087 R)
• M18: 13,619,241 km (0.107 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.4

Radius: 4.9

Gravity: 36.83 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 6.53 AU - 7.01 AU

Year: 11200 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 56,668,212 km

• M1: 62,083 km (0.07 R)
• M2: 262,395 km (0.074 R)
• M3: 709,991 km (0.103 R)
• M4: 1,072,168 km (0.102 R)
• M5: 1,446,611 km (0.098 R)
• M6: 1,719,927 km (0.052 R)
• M7: 2,513,244 km (0.087 R)
• M8: 2,795,236 km (0.087 R)
• M9: 3,049,852 km (0.072 R)
• M10: 4,226,888 km (0.089 R)
• M11: 4,531,469 km (0.045 R)
• M12: 5,569,828 km (0.088 R)
• M13: 5,973,593 km (0.109 R)
• M14: 6,757,485 km (0.11 R)
• M15: 8,865,918 km (0.093 R)
• M16: 9,365,126 km (0.034 R)
• M17: 11,433,915 km (0.04 R)
• M18: 11,845,608 km (0.112 R)
• M19: 12,206,438 km (0.071 R)
• M20: 12,389,546 km (0.091 R)
• M21: 15,934,417 km (0.092 R)
• M22: 17,353,951 km (0.117 R)
• M23: 19,596,573 km (0.044 R)
• M24: 20,614,138 km (0.078 R)
• M25: 23,217,739 km (0.085 R)
• M26: 27,053,578 km (0.071 R)
• M27: 27,995,147 km (0.072 R)
• M28: 30,837,507 km (0.105 R)
• M29: 33,507,230 km (0.114 R)
• M30: 39,301,156 km (0.083 R)
• M31: 40,372,426 km (0.096 R)
• M32: 42,853,956 km (0.092 R)
• M33: 47,513,032 km (0.116 R)
• M34: 53,633,829 km (0.055 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 625.4

Radius: 6.7

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.49 AU - 8.81 AU

Year: 13453 Days

Day: 18.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 56,668,212 km

• M1: 83,775 km (0.102 R)
• M2: 808,277 km (0.088 R)
• M3: 1,449,155 km (0.064 R)
• M4: 1,868,777 km (0.106 R)
• M5: 2,098,409 km (0.088 R)
• M6: 2,972,809 km (0.092 R)
• M7: 4,098,533 km (0.101 R)
• M8: 4,366,014 km (0.054 R)
• M9: 4,645,313 km (0.106 R)
• M10: 7,722,541 km (0.057 R)
• M11: 10,784,660 km (0.059 R)
• M12: 16,057,237 km (0.11 R)
• M13: 17,875,450 km (0.05 R)
• M14: 19,408,828 km (0.056 R)
• M15: 21,646,513 km (0.081 R)
• M16: 23,764,669 km (0.056 R)
• M17: 24,922,706 km (0.097 R)
• M18: 29,272,563 km (0.043 R)
• M19: 30,602,488 km (0.066 R)
• M20: 32,321,069 km (0.103 R)
• M21: 33,263,386 km (0.113 R)
• M22: 39,305,345 km (0.038 R)
• M23: 40,108,536 km (0.11 R)
• M24: 41,333,742 km (0.07 R)
• M25: 43,858,505 km (0.114 R)
• M26: 47,987,556 km (0.088 R)
• M27: 49,989,774 km (0.089 R)
• M28: 52,207,413 km (0.079 R)
• M29: 54,324,821 km (0.091 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 19,649 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit