🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.47 AU - 0.63 AU

Year: 263 Days

Day: 16.4 Hours

Environment

Temp: -113 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,126,327 km

• M1: 48,171 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.5

Radius: 9.8

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.78 AU - 1.06 AU

Year: 570 Days

Day: 6.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 70,126,327 km

• M1: 121,922 km (0.079 R)
• M2: 550,071 km (0.044 R)
• M3: 968,497 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.1

Radius: 11.6

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.84 AU - 1.02 AU

Year: 579 Days

Day: 6.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,126,327 km

• M1: 144,212 km (0.084 R)
• M2: 567,724 km (0.09 R)
• M3: 993,928 km (0.033 R)
• M4: 1,602,343 km (0.116 R)
• M5: 2,005,958 km (0.101 R)
• M6: 2,507,859 km (0.094 R)
• M7: 2,888,286 km (0.069 R)
• M8: 3,456,010 km (0.085 R)
• M9: 4,040,638 km (0.107 R)
• M10: 5,239,366 km (0.026 R)
• M11: 5,617,101 km (0.088 R)
• M12: 6,780,823 km (0.043 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.4

Radius: 10.5

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.81 AU - 1.19 AU

Year: 646 Days

Day: 7.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,126,327 km

• M1: 130,599 km (0.069 R)
• M2: 737,817 km (0.114 R)
• M3: 1,131,857 km (0.095 R)
• M4: 2,013,139 km (0.055 R)
• M5: 2,617,813 km (0.116 R)
• M6: 3,114,029 km (0.111 R)
• M7: 3,658,266 km (0.105 R)
• M8: 4,771,574 km (0.073 R)
• M9: 5,717,032 km (0.08 R)
• M10: 6,433,905 km (0.031 R)
• M11: 6,761,973 km (0.073 R)
• M12: 7,209,570 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.4

Radius: 10.2

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.44 AU - 1.52 AU

Year: 1163 Days

Day: 8.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,126,327 km

• M1: 127,009 km (0.096 R)
• M2: 461,509 km (0.066 R)
• M3: 1,058,255 km (0.056 R)
• M4: 2,257,133 km (0.043 R)
• M5: 2,595,523 km (0.073 R)
• M6: 2,995,697 km (0.051 R)
• M7: 3,499,244 km (0.117 R)
• M8: 4,619,283 km (0.09 R)
• M9: 5,149,159 km (0.102 R)
• M10: 5,567,584 km (0.056 R)
• M11: 6,713,504 km (0.096 R)
• M12: 7,162,447 km (0.105 R)
• M13: 8,120,621 km (0.092 R)
• M14: 9,374,551 km (0.083 R)
• M15: 10,192,851 km (0.062 R)
• M16: 11,368,690 km (0.082 R)
• M17: 11,971,420 km (0.114 R)

Asteroid Belt

Center: 4.07 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343

Radius: 6.3

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 5.27 AU - 8.03 AU

Year: 11073 Days

Day: 23.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,126,327 km

• M1: 90,507 km (0.08 R)
• M2: 299,944 km (0.062 R)
• M3: 599,289 km (0.088 R)
• M4: 3,112,384 km (0.049 R)
• M5: 3,758,796 km (0.107 R)
• M6: 6,029,393 km (0.106 R)
• M7: 10,196,890 km (0.103 R)
• M8: 10,938,148 km (0.105 R)
• M9: 11,193,062 km (0.102 R)
• M10: 12,583,126 km (0.079 R)
• M11: 16,222,842 km (0.064 R)
• M12: 17,026,631 km (0.09 R)
• M13: 20,508,222 km (0.046 R)
• M14: 37,648,249 km (0.063 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 398.4

Radius: 8

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 8.27 AU - 13.51 AU

Year: 23204 Days

Day: 15.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,126,327 km

• M1: 99,483 km (0.095 R)
• M2: 535,710 km (0.051 R)
• M3: 940,372 km (0.111 R)
• M4: 1,206,806 km (0.069 R)
• M5: 1,636,750 km (0.099 R)
• M6: 2,330,136 km (0.082 R)
• M7: 3,258,990 km (0.108 R)
• M8: 3,733,514 km (0.039 R)
• M9: 4,547,626 km (0.105 R)
• M10: 5,943,523 km (0.064 R)
• M11: 7,140,306 km (0.095 R)
• M12: 7,843,865 km (0.083 R)
• M13: 9,553,470 km (0.091 R)
• M14: 10,882,946 km (0.097 R)
• M15: 15,453,310 km (0.08 R)
• M16: 17,032,316 km (0.067 R)
• M17: 17,526,288 km (0.116 R)
• M18: 18,456,637 km (0.104 R)
• M19: 18,977,687 km (0.094 R)
• M20: 27,565,652 km (0.075 R)
• M21: 29,642,070 km (0.113 R)
• M22: 30,597,552 km (0.046 R)
• M23: 36,358,117 km (0.114 R)
• M24: 39,995,440 km (0.087 R)
• M25: 41,604,664 km (0.066 R)
• M26: 47,983,667 km (0.109 R)
• M27: 49,632,834 km (0.117 R)
• M28: 52,349,531 km (0.115 R)
• M29: 54,984,997 km (0.086 R)
• M30: 61,668,281 km (0.064 R)
• M31: 64,208,902 km (0.12 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 448 - 16,858 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit