🌌 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: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.58 AU - 0.6 AU

Year: 297 Days

Day: 25.1 Hours

Environment

Temp: -120 °C

Axial Tilt: 16.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.6

Radius: 8.8

Gravity: 7.88 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.66 AU - 0.88 AU

Year: 443 Days

Day: 6.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,114,663 km

• M1: 109,506 km (0.088 R)
• M2: 494,421 km (0.103 R)
• M3: 772,224 km (0.057 R)
• M4: 1,120,937 km (0.056 R)
• M5: 1,396,047 km (0.064 R)
• M6: 1,860,399 km (0.099 R)
• M7: 2,568,296 km (0.076 R)
• M8: 3,110,589 km (0.097 R)
• M9: 4,624,669 km (0.084 R)
• M10: 5,000,010 km (0.067 R)
• M11: 5,298,757 km (0.09 R)
• M12: 5,642,682 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.1

Radius: 8.5

Gravity: 13.81 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.16 AU - 1.7 AU

Year: 1122 Days

Day: 12.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,114,663 km

• M1: 105,766 km (0.026 R)
• M2: 380,876 km (0.038 R)
• M3: 788,082 km (0.103 R)
• M4: 1,109,268 km (0.117 R)
• M5: 1,919,490 km (0.107 R)
• M6: 2,271,644 km (0.098 R)
• M7: 2,666,881 km (0.071 R)
• M8: 3,021,279 km (0.111 R)
• M9: 3,422,350 km (0.114 R)
• M10: 3,858,578 km (0.036 R)
• M11: 4,706,499 km (0.111 R)
• M12: 6,099,554 km (0.086 R)
• M13: 6,717,543 km (0.098 R)
• M14: 7,272,551 km (0.069 R)
• M15: 7,587,903 km (0.07 R)
• M16: 8,734,870 km (0.088 R)
• M17: 9,243,054 km (0.091 R)
• M18: 10,252,690 km (0.082 R)
• M19: 10,818,170 km (0.077 R)
• M20: 11,195,007 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.9

Radius: 11.6

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.88 AU - 3 AU

Year: 2500 Days

Day: 13.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,114,663 km

• M1: 144,212 km (0.044 R)
• M2: 657,931 km (0.11 R)
• M3: 1,145,620 km (0.081 R)
• M4: 1,883,886 km (0.103 R)
• M5: 2,522,669 km (0.093 R)
• M6: 4,617,189 km (0.111 R)
• M7: 5,212,738 km (0.066 R)
• M8: 5,654,650 km (0.083 R)
• M9: 6,474,745 km (0.104 R)
• M10: 7,312,045 km (0.104 R)
• M11: 7,898,768 km (0.111 R)
• M12: 9,096,598 km (0.071 R)
• M13: 9,702,619 km (0.119 R)
• M14: 10,109,076 km (0.085 R)
• M15: 13,101,632 km (0.073 R)
• M16: 14,014,927 km (0.12 R)
• M17: 15,613,829 km (0.092 R)
• M18: 16,798,046 km (0.119 R)
• M19: 17,170,096 km (0.094 R)
• M20: 18,713,646 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.7

Radius: 10.4

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.16 AU - 3.06 AU

Year: 2766 Days

Day: 14.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 84,114,663 km

• M1: 148,251 km (0.118 R)
• M2: 747,840 km (0.111 R)
• M3: 1,141,731 km (0.104 R)
• M4: 1,720,076 km (0.069 R)
• M5: 2,807,653 km (0.097 R)
• M6: 3,477,851 km (0.098 R)
• M7: 5,539,310 km (0.089 R)
• M8: 10,085,888 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.4

Radius: 11.1

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.5 AU - 2.96 AU

Year: 2959 Days

Day: 5.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,114,663 km

• M1: 139,724 km (0.052 R)
• M2: 520,002 km (0.103 R)
• M3: 969,993 km (0.107 R)
• M4: 1,960,330 km (0.107 R)
• M5: 4,086,415 km (0.118 R)
• M6: 4,782,794 km (0.118 R)
• M7: 7,109,489 km (0.084 R)
• M8: 12,362,768 km (0.109 R)
• M9: 14,240,521 km (0.1 R)
• M10: 14,629,026 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.8

Radius: 6.7

Gravity: 20.98 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.33 AU - 6.83 AU

Year: 9835 Days

Day: 15.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,114,663 km

• M1: 88,861 km (0.095 R)
• M2: 365,318 km (0.067 R)
• M3: 659,128 km (0.102 R)
• M4: 1,107,772 km (0.04 R)
• M5: 1,697,038 km (0.115 R)
• M6: 3,553,548 km (0.041 R)
• M7: 4,505,439 km (0.098 R)
• M8: 4,783,691 km (0.054 R)
• M9: 5,795,122 km (0.075 R)
• M10: 6,161,787 km (0.036 R)
• M11: 10,036,222 km (0.114 R)
• M12: 10,727,813 km (0.113 R)
• M13: 11,507,816 km (0.074 R)
• M14: 12,324,920 km (0.081 R)
• M15: 17,598,394 km (0.099 R)
• M16: 18,524,106 km (0.101 R)
• M17: 19,078,964 km (0.094 R)
• M18: 24,675,570 km (0.091 R)
• M19: 26,426,913 km (0.116 R)
• M20: 27,231,151 km (0.053 R)
• M21: 29,100,376 km (0.051 R)
• M22: 31,387,428 km (0.038 R)
• M23: 42,006,185 km (0.096 R)
• M24: 43,655,501 km (0.064 R)
• M25: 46,936,332 km (0.052 R)
• M26: 52,395,607 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656

Radius: 3.6

Gravity: 50.62 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.05 AU - 9.69 AU

Year: 15885 Days

Day: 23.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,114,663 km

• M1: 44,879 km (0.093 R)
• M2: 210,035 km (0.111 R)
• M3: 328,367 km (0.119 R)
• M4: 826,827 km (0.117 R)
• M5: 1,013,376 km (0.095 R)
• M6: 1,832,873 km (0.114 R)
• M7: 4,189,488 km (0.086 R)
• M8: 4,410,444 km (0.116 R)
• M9: 7,065,059 km (0.114 R)
• M10: 7,378,017 km (0.043 R)
• M11: 7,841,023 km (0.094 R)
• M12: 11,638,266 km (0.036 R)
• M13: 12,586,267 km (0.09 R)
• M14: 16,581,129 km (0.088 R)
• M15: 17,778,959 km (0.098 R)
• M16: 22,760,418 km (0.027 R)
• M17: 24,337,778 km (0.12 R)
• M18: 31,020,016 km (0.099 R)
• M19: 31,857,166 km (0.032 R)
• M20: 38,965,309 km (0.102 R)
• M21: 42,518,557 km (0.1 R)
• M22: 45,665,498 km (0.113 R)
• M23: 48,483,324 km (0.082 R)
• M24: 50,261,294 km (0.029 R)
• M25: 57,270,702 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 736.8

Radius: 5.4

Gravity: 25.27 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 8.27 AU - 11.95 AU

Year: 21088 Days

Day: 22.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 84,114,663 km

• M1: 68,516 km (0.085 R)
• M2: 361,877 km (0.091 R)
• M3: 537,804 km (0.109 R)
• M4: 712,684 km (0.115 R)
• M5: 1,691,054 km (0.047 R)
• M6: 2,518,031 km (0.075 R)
• M7: 2,811,842 km (0.101 R)
• M8: 3,073,787 km (0.089 R)
• M9: 3,266,918 km (0.118 R)
• M10: 3,556,689 km (0.116 R)
• M11: 3,769,717 km (0.117 R)
• M12: 4,565,428 km (0.027 R)
• M13: 5,078,249 km (0.036 R)
• M14: 5,348,722 km (0.096 R)
• M15: 6,663,688 km (0.067 R)
• M16: 8,770,175 km (0.096 R)
• M17: 8,991,430 km (0.117 R)
• M18: 12,424,103 km (0.079 R)
• M19: 16,472,371 km (0.1 R)
• M20: 16,724,743 km (0.117 R)
• M21: 22,433,397 km (0.075 R)
• M22: 24,995,261 km (0.08 R)
• M23: 26,923,578 km (0.117 R)
• M24: 27,509,104 km (0.081 R)
• M25: 27,745,767 km (0.077 R)
• M26: 32,502,531 km (0.089 R)
• M27: 37,339,629 km (0.039 R)
• M28: 39,401,686 km (0.108 R)
• M29: 43,111,114 km (0.089 R)
• M30: 43,751,094 km (0.113 R)
• M31: 49,449,576 km (0.053 R)
• M32: 51,752,935 km (0.087 R)
• M33: 54,498,355 km (0.112 R)
• M34: 57,919,209 km (0.068 R)
• M35: 60,876,909 km (0.073 R)
• M36: 66,239,544 km (0.044 R)
• M37: 69,691,365 km (0.094 R)
• M38: 76,950,901 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794.1

Radius: 5.7

Gravity: 24.44 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 8.57 AU - 11.97 AU

Year: 21591 Days

Day: 24.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 84,114,663 km

• M1: 71,358 km (0.104 R)
• M2: 552,914 km (0.058 R)
• M3: 774,019 km (0.064 R)
• M4: 978,071 km (0.075 R)
• M5: 1,262,008 km (0.092 R)
• M6: 1,935,647 km (0.075 R)
• M7: 2,648,032 km (0.108 R)
• M8: 2,982,682 km (0.104 R)
• M9: 5,449,701 km (0.074 R)
• M10: 6,941,192 km (0.105 R)
• M11: 7,577,282 km (0.109 R)
• M12: 8,198,113 km (0.119 R)
• M13: 10,080,054 km (0.112 R)
• M14: 12,024,976 km (0.117 R)
• M15: 13,085,475 km (0.093 R)
• M16: 15,229,213 km (0.064 R)
• M17: 16,810,462 km (0.059 R)
• M18: 17,069,715 km (0.078 R)
• M19: 17,774,321 km (0.102 R)
• M20: 19,715,653 km (0.103 R)
• M21: 21,186,050 km (0.088 R)
• M22: 23,796,533 km (0.105 R)
• M23: 25,575,252 km (0.09 R)
• M24: 25,918,280 km (0.049 R)
• M25: 27,680,094 km (0.119 R)
• M26: 33,852,053 km (0.062 R)
• M27: 35,103,140 km (0.11 R)
• M28: 37,109,846 km (0.094 R)
• M29: 37,697,018 km (0.09 R)
• M30: 39,954,001 km (0.103 R)
• M31: 45,735,061 km (0.11 R)
• M32: 50,598,937 km (0.097 R)
• M33: 52,049,438 km (0.064 R)
• M34: 62,779,494 km (0.077 R)
• M35: 64,242,711 km (0.114 R)
• M36: 78,447,927 km (0.118 R)
• M37: 80,634,000 km (0.071 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 443 - 10,714 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit