🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.58 AU - 0.62 AU

Year: 305 Days

Day: 43.2 Hours

Environment

Temp: -125 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.8

Radius: 13.1

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.66 AU - 1.02 AU

Year: 505 Days

Day: 13.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 73,421,686 km

• M1: 162,912 km (0.07 R)
• M2: 629,957 km (0.076 R)
• M3: 1,136,495 km (0.102 R)
• M4: 1,616,106 km (0.061 R)
• M5: 2,097,063 km (0.111 R)
• M6: 2,530,298 km (0.116 R)
• M7: 3,174,916 km (0.112 R)
• M8: 3,711,822 km (0.043 R)
• M9: 4,794,612 km (0.108 R)
• M10: 5,626,825 km (0.084 R)
• M11: 6,059,462 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907

Radius: 10.2

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.81 AU - 1.19 AU

Year: 656 Days

Day: 9.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,421,686 km

• M1: 126,859 km (0.088 R)
• M2: 513,869 km (0.061 R)
• M3: 980,315 km (0.112 R)
• M4: 1,396,795 km (0.108 R)
• M5: 1,994,588 km (0.068 R)
• M6: 2,327,593 km (0.064 R)
• M7: 2,849,839 km (0.072 R)
• M8: 4,332,953 km (0.098 R)
• M9: 4,984,601 km (0.074 R)
• M10: 5,529,287 km (0.073 R)
• M11: 7,589,250 km (0.054 R)
• M12: 7,992,715 km (0.112 R)
• M13: 8,385,559 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730

Radius: 11.2

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.41 AU - 2.01 AU

Year: 1467 Days

Day: 12.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 73,421,686 km

• M1: 147,803 km (0.105 R)
• M2: 506,838 km (0.074 R)
• M3: 920,476 km (0.089 R)
• M4: 1,327,083 km (0.04 R)
• M5: 1,686,566 km (0.107 R)
• M6: 2,056,522 km (0.104 R)
• M7: 2,622,301 km (0.099 R)
• M8: 3,007,216 km (0.03 R)
• M9: 3,739,348 km (0.114 R)
• M10: 4,175,127 km (0.081 R)
• M11: 5,066,132 km (0.119 R)
• M12: 5,425,915 km (0.115 R)
• M13: 5,871,268 km (0.035 R)
• M14: 7,092,285 km (0.087 R)
• M15: 9,673,447 km (0.116 R)
• M16: 10,397,202 km (0.055 R)
• M17: 12,176,519 km (0.062 R)
• M18: 13,618,044 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.4

Radius: 8.2

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.96 AU - 3.4 AU

Year: 3720 Days

Day: 8.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 73,421,686 km

• M1: 105,018 km (0.06 R)
• M2: 482,304 km (0.099 R)
• M3: 802,892 km (0.107 R)
• M4: 1,137,393 km (0.117 R)
• M5: 2,116,211 km (0.099 R)
• M6: 2,727,468 km (0.116 R)
• M7: 3,033,246 km (0.074 R)
• M8: 4,638,880 km (0.106 R)
• M9: 8,977,518 km (0.061 R)
• M10: 9,357,796 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.9

Radius: 11.3

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.22 AU - 4.3 AU

Year: 5768 Days

Day: 11.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 73,421,686 km

• M1: 140,622 km (0.119 R)
• M2: 493,673 km (0.087 R)
• M3: 1,214,884 km (0.104 R)
• M4: 2,382,944 km (0.091 R)
• M5: 3,919,315 km (0.082 R)
• M6: 4,364,518 km (0.07 R)
• M7: 4,761,102 km (0.1 R)
• M8: 5,298,009 km (0.101 R)
• M9: 5,843,742 km (0.114 R)
• M10: 6,228,059 km (0.115 R)
• M11: 6,766,910 km (0.086 R)
• M12: 7,670,930 km (0.119 R)
• M13: 8,132,589 km (0.084 R)
• M14: 9,542,399 km (0.062 R)
• M15: 10,077,062 km (0.106 R)
• M16: 11,953,618 km (0.083 R)
• M17: 13,163,865 km (0.112 R)
• M18: 17,154,537 km (0.082 R)
• M19: 19,177,998 km (0.093 R)
• M20: 20,247,174 km (0.106 R)
• M21: 21,056,349 km (0.1 R)
• M22: 21,810,472 km (0.114 R)
• M23: 23,133,665 km (0.056 R)
• M24: 26,370,365 km (0.109 R)
• M25: 26,893,808 km (0.095 R)
• M26: 28,780,536 km (0.099 R)
• M27: 29,803,337 km (0.1 R)
• M28: 33,218,955 km (0.102 R)
• M29: 34,240,858 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.7

Radius: 5.8

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 7.69 AU - 9.85 AU

Year: 17038 Days

Day: 15.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 73,421,686 km

• M1: 72,555 km (0.115 R)
• M2: 502,200 km (0.054 R)
• M3: 956,230 km (0.086 R)
• M4: 1,240,466 km (0.094 R)
• M5: 1,608,327 km (0.072 R)
• M6: 2,541,069 km (0.095 R)
• M7: 3,537,840 km (0.081 R)
• M8: 4,137,578 km (0.119 R)
• M9: 5,878,000 km (0.069 R)
• M10: 13,854,708 km (0.085 R)
• M11: 17,771,778 km (0.075 R)
• M12: 20,380,616 km (0.112 R)
• M13: 21,608,664 km (0.071 R)
• M14: 29,511,770 km (0.038 R)
• M15: 32,157,558 km (0.083 R)
• M16: 34,385,071 km (0.12 R)
• M17: 38,159,425 km (0.06 R)
• M18: 42,856,948 km (0.116 R)
• M19: 44,189,865 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 882.7

Radius: 6.9

Gravity: 18.54 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 7.44 AU - 12.12 AU

Year: 20064 Days

Day: 21.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 73,421,686 km

• M1: 85,869 km (0.088 R)
• M2: 349,161 km (0.115 R)
• M3: 593,754 km (0.12 R)
• M4: 2,024,957 km (0.094 R)
• M5: 4,853,105 km (0.113 R)
• M6: 5,390,759 km (0.066 R)
• M7: 5,924,973 km (0.117 R)
• M8: 7,639,215 km (0.097 R)
• M9: 9,425,713 km (0.084 R)
• M10: 10,697,744 km (0.034 R)
• M11: 12,566,520 km (0.089 R)
• M12: 20,615,484 km (0.119 R)
• M13: 23,166,128 km (0.087 R)
• M14: 25,240,003 km (0.114 R)
• M15: 26,728,352 km (0.049 R)
• M16: 31,935,555 km (0.089 R)
• M17: 33,403,260 km (0.071 R)
• M18: 44,300,417 km (0.111 R)
• M19: 45,455,313 km (0.086 R)
• M20: 46,799,450 km (0.07 R)
• M21: 47,997,130 km (0.072 R)
• M22: 49,567,010 km (0.105 R)
• M23: 50,632,297 km (0.098 R)
• M24: 55,615,851 km (0.081 R)
• M25: 56,959,240 km (0.113 R)
• M26: 57,541,475 km (0.117 R)
• M27: 65,477,043 km (0.068 R)
• M28: 80,027,680 km (0.081 R)
• M29: 81,738,930 km (0.089 R)
• M30: 82,232,304 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 612.7

Radius: 5.3

Gravity: 21.81 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 9.13 AU - 11.67 AU

Year: 22002 Days

Day: 23.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,421,686 km

• M1: 67,469 km (0.085 R)
• M2: 340,036 km (0.096 R)
• M3: 506,090 km (0.046 R)
• M4: 738,415 km (0.068 R)
• M5: 1,228,049 km (0.115 R)
• M6: 1,568,534 km (0.051 R)
• M7: 1,930,561 km (0.112 R)
• M8: 2,720,886 km (0.075 R)
• M9: 3,080,071 km (0.12 R)
• M10: 3,707,783 km (0.107 R)
• M11: 4,520,548 km (0.053 R)
• M12: 5,645,076 km (0.1 R)
• M13: 6,315,573 km (0.081 R)
• M14: 9,362,433 km (0.045 R)
• M15: 13,266,788 km (0.099 R)
• M16: 15,533,794 km (0.067 R)
• M17: 19,032,140 km (0.109 R)
• M18: 20,337,531 km (0.108 R)
• M19: 21,012,068 km (0.12 R)
• M20: 23,229,408 km (0.119 R)
• M21: 29,567,122 km (0.091 R)
• M22: 47,163,122 km (0.107 R)
• M23: 48,173,506 km (0.098 R)
• M24: 48,513,542 km (0.037 R)
• M25: 53,624,703 km (0.078 R)
• M26: 56,404,082 km (0.097 R)
• M27: 57,351,485 km (0.084 R)
• M28: 68,482,464 km (0.073 R)
• M29: 71,971,685 km (0.071 R)
• M30: 72,862,241 km (0.119 R)
• M31: 75,120,421 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429.8

Radius: 7

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 9.71 AU - 12.29 AU

Year: 23933 Days

Day: 22.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 73.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 73,421,686 km

• M1: 87,066 km (0.07 R)
• M2: 324,777 km (0.085 R)
• M3: 598,092 km (0.08 R)
• M4: 1,178,831 km (0.096 R)
• M5: 1,645,726 km (0.094 R)
• M6: 2,106,936 km (0.064 R)
• M7: 2,467,617 km (0.059 R)
• M8: 2,918,804 km (0.07 R)
• M9: 3,258,242 km (0.099 R)
• M10: 3,682,501 km (0.102 R)
• M11: 4,239,454 km (0.089 R)
• M12: 6,123,490 km (0.07 R)
• M13: 6,904,241 km (0.114 R)
• M14: 8,401,716 km (0.087 R)
• M15: 9,035,562 km (0.109 R)
• M16: 11,570,647 km (0.049 R)
• M17: 12,828,317 km (0.075 R)
• M18: 14,768,751 km (0.07 R)
• M19: 22,143,327 km (0.048 R)
• M20: 26,223,609 km (0.06 R)
• M21: 28,265,171 km (0.11 R)
• M22: 29,087,062 km (0.075 R)
• M23: 31,397,900 km (0.119 R)
• M24: 36,243,824 km (0.112 R)
• M25: 37,493,714 km (0.116 R)
• M26: 39,932,608 km (0.084 R)
• M27: 40,521,426 km (0.073 R)
• M28: 41,716,413 km (0.103 R)
• M29: 42,018,900 km (0.119 R)
• M30: 43,397,744 km (0.064 R)
• M31: 45,282,827 km (0.081 R)
• M32: 51,611,565 km (0.076 R)
• M33: 59,264,692 km (0.111 R)
• M34: 59,646,915 km (0.081 R)
• M35: 69,108,980 km (0.055 R)
• M36: 71,459,462 km (0.061 R)
• M37: 73,201,828 km (0.112 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: 430 - 13,775 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit