🌌 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: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.65 AU - 0.67 AU

Year: 341 Days

Day: 38.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 28.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.9

Radius: 11.4

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.93 AU - 1.01 AU

Year: 607 Days

Day: 13.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,400,984 km

• M1: 141,819 km (0.105 R)
• M2: 550,071 km (0.045 R)
• M3: 906,114 km (0.112 R)
• M4: 1,413,700 km (0.073 R)
• M5: 1,894,657 km (0.11 R)
• M6: 2,378,905 km (0.092 R)
• M7: 3,128,839 km (0.058 R)
• M8: 3,519,888 km (0.11 R)
• M9: 4,809,871 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.7

Radius: 13.5

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.8 AU - 1.28 AU

Year: 674 Days

Day: 8.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,400,984 km

• M1: 168,298 km (0.03 R)
• M2: 591,959 km (0.052 R)
• M3: 1,297,014 km (0.118 R)
• M4: 2,182,184 km (0.1 R)
• M5: 2,714,453 km (0.117 R)
• M6: 3,487,276 km (0.032 R)
• M7: 4,085,219 km (0.05 R)
• M8: 4,588,765 km (0.077 R)
• M9: 5,228,894 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.7

Radius: 9.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.14 AU - 1.32 AU

Year: 867 Days

Day: 6.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,400,984 km

• M1: 114,143 km (0.075 R)
• M2: 522,246 km (0.115 R)
• M3: 1,034,619 km (0.05 R)
• M4: 1,635,254 km (0.119 R)
• M5: 1,923,978 km (0.11 R)
• M6: 2,297,225 km (0.113 R)
• M7: 3,352,937 km (0.119 R)
• M8: 3,729,026 km (0.065 R)
• M9: 4,431,837 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.4

Radius: 13.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.4 AU - 3.36 AU

Year: 3108 Days

Day: 14.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,400,984 km

• M1: 172,935 km (0.071 R)
• M2: 800,049 km (0.059 R)
• M3: 1,462,469 km (0.098 R)
• M4: 2,012,091 km (0.059 R)
• M5: 2,506,512 km (0.076 R)
• M6: 3,099,219 km (0.064 R)
• M7: 4,289,121 km (0.098 R)
• M8: 4,861,781 km (0.115 R)
• M9: 5,764,604 km (0.09 R)
• M10: 6,892,722 km (0.101 R)
• M11: 7,525,222 km (0.1 R)
• M12: 8,837,195 km (0.061 R)
• M13: 9,402,825 km (0.061 R)
• M14: 9,954,990 km (0.108 R)
• M15: 10,764,464 km (0.108 R)
• M16: 12,427,394 km (0.083 R)
• M17: 13,643,027 km (0.097 R)
• M18: 14,739,878 km (0.086 R)
• M19: 18,270,837 km (0.107 R)
• M20: 18,842,301 km (0.055 R)
• M21: 19,662,396 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.6

Radius: 11.2

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.54 AU - 4.14 AU

Year: 3881 Days

Day: 10.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,400,984 km

• M1: 139,575 km (0.107 R)
• M2: 491,279 km (0.115 R)
• M3: 1,101,489 km (0.064 R)
• M4: 2,555,132 km (0.085 R)
• M5: 3,904,953 km (0.117 R)
• M6: 4,294,955 km (0.103 R)
• M7: 4,761,700 km (0.073 R)
• M8: 6,063,800 km (0.092 R)
• M9: 7,177,855 km (0.106 R)
• M10: 8,053,751 km (0.084 R)
• M11: 8,574,651 km (0.117 R)
• M12: 9,157,634 km (0.089 R)
• M13: 13,226,397 km (0.111 R)
• M14: 13,638,090 km (0.109 R)
• M15: 14,271,487 km (0.111 R)
• M16: 14,650,119 km (0.076 R)
• M17: 16,290,311 km (0.097 R)
• M18: 18,748,952 km (0.075 R)
• M19: 21,164,808 km (0.096 R)
• M20: 23,630,330 km (0.113 R)
• M21: 25,879,534 km (0.118 R)
• M22: 26,605,832 km (0.106 R)
• M23: 27,179,988 km (0.025 R)
• M24: 28,014,445 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 352.8

Radius: 3.7

Gravity: 25.77 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.18 AU - 7.78 AU

Year: 10488 Days

Day: 17.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 62,400,984 km

• M1: 46,076 km (0.06 R)
• M2: 164,258 km (0.096 R)
• M3: 367,712 km (0.098 R)
• M4: 540,647 km (0.082 R)
• M5: 718,519 km (0.1 R)
• M6: 1,894,358 km (0.049 R)
• M7: 2,360,056 km (0.107 R)
• M8: 2,796,433 km (0.105 R)
• M9: 3,023,223 km (0.059 R)
• M10: 3,608,151 km (0.083 R)
• M11: 3,952,675 km (0.118 R)
• M12: 4,211,778 km (0.097 R)
• M13: 4,372,746 km (0.077 R)
• M14: 5,057,754 km (0.108 R)
• M15: 9,487,647 km (0.113 R)
• M16: 10,975,846 km (0.099 R)
• M17: 11,907,841 km (0.037 R)
• M18: 12,229,776 km (0.085 R)
• M19: 13,518,262 km (0.113 R)
• M20: 16,034,498 km (0.105 R)
• M21: 16,893,190 km (0.032 R)
• M22: 18,132,160 km (0.094 R)
• M23: 18,629,872 km (0.059 R)
• M24: 21,177,673 km (0.032 R)
• M25: 23,275,933 km (0.054 R)
• M26: 29,899,678 km (0.049 R)
• M27: 33,584,722 km (0.065 R)
• M28: 35,979,485 km (0.077 R)
• M29: 37,104,610 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348.7

Radius: 7.4

Gravity: 6.37 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 5.05 AU - 7.99 AU

Year: 10585 Days

Day: 19.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,400,984 km

• M1: 270,174 km (0.065 R)
• M2: 574,605 km (0.041 R)
• M3: 830,119 km (0.107 R)
• M4: 1,478,775 km (0.09 R)
• M5: 2,052,483 km (0.114 R)
• M6: 3,072,591 km (0.032 R)
• M7: 3,705,988 km (0.099 R)
• M8: 5,291,277 km (0.095 R)
• M9: 6,798,924 km (0.103 R)
• M10: 8,658,575 km (0.107 R)
• M11: 9,821,100 km (0.101 R)
• M12: 12,289,315 km (0.095 R)
• M13: 16,033,152 km (0.113 R)
• M14: 16,425,098 km (0.05 R)
• M15: 16,957,667 km (0.1 R)
• M16: 19,350,335 km (0.095 R)
• M17: 22,039,207 km (0.103 R)
• M18: 28,524,873 km (0.117 R)
• M19: 30,077,101 km (0.044 R)
• M20: 32,302,369 km (0.057 R)
• M21: 32,927,838 km (0.097 R)
• M22: 35,731,601 km (0.1 R)
• M23: 36,176,655 km (0.092 R)
• M24: 37,648,548 km (0.108 R)

Asteroid Belt

Center: 6.81 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 294.5

Radius: 3.8

Gravity: 20.39 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 7.03 AU - 7.17 AU

Year: 12029 Days

Day: 17.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,400,984 km

• M1: 47,273 km (0.06 R)
• M2: 447,746 km (0.066 R)
• M3: 577,597 km (0.098 R)
• M4: 834,008 km (0.057 R)
• M5: 983,456 km (0.069 R)
• M6: 1,206,806 km (0.116 R)
• M7: 1,516,025 km (0.097 R)
• M8: 1,710,951 km (0.111 R)
• M9: 1,906,774 km (0.099 R)
• M10: 2,379,653 km (0.085 R)
• M11: 2,682,589 km (0.078 R)
• M12: 2,968,471 km (0.095 R)
• M13: 3,206,930 km (0.103 R)
• M14: 3,411,430 km (0.071 R)
• M15: 5,004,348 km (0.066 R)
• M16: 5,500,714 km (0.114 R)
• M17: 9,740,766 km (0.075 R)
• M18: 11,637,817 km (0.064 R)
• M19: 12,229,925 km (0.032 R)
• M20: 13,415,339 km (0.104 R)
• M21: 14,307,540 km (0.03 R)
• M22: 14,675,252 km (0.093 R)
• M23: 14,923,884 km (0.051 R)
• M24: 15,493,552 km (0.078 R)
• M25: 17,083,478 km (0.058 R)
• M26: 17,566,829 km (0.112 R)
• M27: 19,442,487 km (0.084 R)
• M28: 20,583,021 km (0.102 R)
• M29: 21,209,238 km (0.107 R)
• M30: 24,271,357 km (0.043 R)
• M31: 25,324,526 km (0.104 R)
• M32: 30,542,500 km (0.062 R)
• M33: 35,421,634 km (0.058 R)
• M34: 37,695,821 km (0.096 R)
• M35: 39,106,080 km (0.119 R)
• M36: 39,824,150 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 775.8

Radius: 4.1

Gravity: 46.15 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.01 AU - 9.67 AU

Year: 13957 Days

Day: 16.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 62,400,984 km

• M1: 51,013 km (0.087 R)
• M2: 184,903 km (0.051 R)
• M3: 368,310 km (0.086 R)
• M4: 564,882 km (0.073 R)
• M5: 1,237,773 km (0.055 R)
• M6: 1,509,592 km (0.11 R)
• M7: 1,668,016 km (0.102 R)
• M8: 2,037,074 km (0.105 R)
• M9: 2,437,249 km (0.118 R)
• M10: 2,770,403 km (0.085 R)
• M11: 4,379,777 km (0.056 R)
• M12: 5,694,892 km (0.117 R)
• M13: 6,279,520 km (0.042 R)
• M14: 7,844,763 km (0.084 R)
• M15: 8,868,611 km (0.119 R)
• M16: 9,760,214 km (0.043 R)
• M17: 9,923,575 km (0.05 R)
• M18: 10,595,120 km (0.09 R)
• M19: 12,028,417 km (0.069 R)
• M20: 14,272,983 km (0.073 R)
• M21: 14,483,467 km (0.119 R)
• M22: 15,419,801 km (0.114 R)
• M23: 17,016,309 km (0.1 R)
• M24: 18,887,629 km (0.094 R)
• M25: 25,728,590 km (0.113 R)
• M26: 27,529,299 km (0.046 R)
• M27: 28,405,045 km (0.098 R)
• M28: 29,753,221 km (0.1 R)
• M29: 33,432,431 km (0.036 R)
• M30: 35,573,177 km (0.076 R)
• M31: 36,480,638 km (0.068 R)
• M32: 42,685,808 km (0.077 R)
• M33: 44,005,859 km (0.042 R)
• M34: 44,601,109 km (0.115 R)
• M35: 47,191,247 km (0.044 R)
• M36: 47,346,679 km (0.093 R)
• M37: 48,602,254 km (0.113 R)
• M38: 51,343,635 km (0.105 R)
• M39: 53,508,316 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 13,778 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit