🌌 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: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.48 AU - 0.7 AU

Year: 288 Days

Day: 22.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,788,558 km

• M1: 323,131 km (0.073 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.59 AU - 0.63 AU

Year: 303 Days

Day: 35 Hours

Environment

Temp: -134 °C

Axial Tilt: 22.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,788,558 km

• M1: 74,799 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.6

Radius: 12.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.74 AU - 1.08 AU

Year: 552 Days

Day: 14.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,788,558 km

• M1: 160,369 km (0.114 R)
• M2: 599,588 km (0.119 R)
• M3: 1,006,943 km (0.118 R)
• M4: 1,478,775 km (0.103 R)
• M5: 1,898,995 km (0.084 R)
• M6: 2,343,451 km (0.061 R)
• M7: 2,751,105 km (0.08 R)
• M8: 3,206,780 km (0.076 R)
• M9: 4,019,844 km (0.081 R)
• M10: 4,950,194 km (0.118 R)
• M11: 5,458,228 km (0.118 R)
• M12: 5,983,017 km (0.104 R)
• M13: 6,426,874 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.9

Radius: 10.3

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.03 AU - 1.39 AU

Year: 846 Days

Day: 10.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,788,558 km

• M1: 128,056 km (0.087 R)
• M2: 522,845 km (0.048 R)
• M3: 876,195 km (0.037 R)
• M4: 1,222,065 km (0.109 R)
• M5: 1,556,267 km (0.053 R)
• M6: 1,884,784 km (0.059 R)
• M7: 2,298,272 km (0.104 R)
• M8: 3,500,590 km (0.105 R)
• M9: 4,188,740 km (0.087 R)
• M10: 5,030,677 km (0.085 R)
• M11: 5,852,119 km (0.074 R)
• M12: 6,500,177 km (0.062 R)
• M13: 6,944,632 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.7

Radius: 8.7

Gravity: 10.74 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.23 AU - 2.57 AU

Year: 2364 Days

Day: 14.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,788,558 km

• M1: 157,826 km (0.067 R)
• M2: 550,071 km (0.113 R)
• M3: 1,109,418 km (0.113 R)
• M4: 1,487,152 km (0.049 R)
• M5: 1,866,233 km (0.114 R)
• M6: 4,213,125 km (0.084 R)
• M7: 4,530,422 km (0.117 R)
• M8: 4,909,204 km (0.082 R)
• M9: 8,214,569 km (0.117 R)
• M10: 9,476,277 km (0.04 R)
• M11: 10,590,482 km (0.109 R)
• M12: 11,139,357 km (0.096 R)
• M13: 12,681,262 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983

Radius: 15

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.25 AU - 3.31 AU

Year: 2947 Days

Day: 8.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,788,558 km

• M1: 189,690 km (0.063 R)
• M2: 778,059 km (0.062 R)
• M3: 1,267,543 km (0.051 R)
• M4: 2,062,207 km (0.081 R)
• M5: 2,748,711 km (0.07 R)
• M6: 3,526,919 km (0.069 R)
• M7: 4,139,074 km (0.083 R)
• M8: 4,797,903 km (0.093 R)
• M9: 5,525,996 km (0.088 R)
• M10: 7,110,088 km (0.09 R)
• M11: 8,511,072 km (0.065 R)
• M12: 9,053,813 km (0.053 R)
• M13: 10,168,915 km (0.045 R)
• M14: 12,487,533 km (0.108 R)
• M15: 13,623,728 km (0.112 R)
• M16: 15,938,756 km (0.109 R)
• M17: 23,237,935 km (0.08 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.5

Radius: 3.8

Gravity: 34.18 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.76 AU - 6.64 AU

Year: 9816 Days

Day: 20.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 46,788,558 km

• M1: 47,273 km (0.118 R)
• M2: 208,240 km (0.03 R)
• M3: 391,498 km (0.116 R)
• M4: 1,049,429 km (0.035 R)
• M5: 1,556,865 km (0.1 R)
• M6: 1,743,114 km (0.085 R)
• M7: 1,912,010 km (0.053 R)
• M8: 2,108,732 km (0.084 R)
• M9: 2,466,420 km (0.097 R)
• M10: 3,394,376 km (0.103 R)
• M11: 3,732,916 km (0.033 R)
• M12: 3,962,100 km (0.072 R)
• M13: 6,008,000 km (0.11 R)
• M14: 6,466,368 km (0.101 R)
• M15: 6,722,629 km (0.1 R)
• M16: 6,985,622 km (0.049 R)
• M17: 8,318,689 km (0.092 R)
• M18: 8,621,774 km (0.102 R)
• M19: 9,575,311 km (0.069 R)
• M20: 9,956,486 km (0.073 R)
• M21: 10,446,868 km (0.042 R)
• M22: 14,034,375 km (0.069 R)
• M23: 15,284,414 km (0.101 R)
• M24: 19,933,767 km (0.093 R)
• M25: 23,938,352 km (0.083 R)
• M26: 26,637,247 km (0.074 R)
• M27: 29,933,038 km (0.119 R)
• M28: 34,146,462 km (0.075 R)
• M29: 34,699,376 km (0.096 R)
• M30: 36,394,020 km (0.076 R)
• M31: 40,314,831 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 332.6

Radius: 5.8

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.6 AU - 8.64 AU

Year: 12080 Days

Day: 20.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 46,788,558 km

• M1: 72,405 km (0.098 R)
• M2: 260,300 km (0.079 R)
• M3: 490,232 km (0.072 R)
• M4: 911,799 km (0.111 R)
• M5: 1,496,428 km (0.051 R)
• M6: 1,885,532 km (0.117 R)
• M7: 2,079,111 km (0.109 R)
• M8: 2,468,814 km (0.085 R)
• M9: 2,969,368 km (0.09 R)
• M10: 3,323,765 km (0.11 R)
• M11: 3,882,214 km (0.102 R)
• M12: 4,090,455 km (0.106 R)
• M13: 4,501,101 km (0.092 R)
• M14: 4,702,011 km (0.065 R)
• M15: 5,501,013 km (0.12 R)
• M16: 7,483,783 km (0.107 R)
• M17: 8,013,958 km (0.116 R)
• M18: 8,656,481 km (0.117 R)
• M19: 11,307,505 km (0.053 R)
• M20: 13,191,839 km (0.09 R)
• M21: 15,665,141 km (0.044 R)
• M22: 16,531,313 km (0.091 R)
• M23: 19,547,505 km (0.097 R)
• M24: 21,024,934 km (0.114 R)
• M25: 23,335,772 km (0.105 R)
• M26: 24,640,864 km (0.05 R)
• M27: 27,970,015 km (0.104 R)
• M28: 28,163,295 km (0.088 R)
• M29: 31,274,482 km (0.03 R)
• M30: 34,941,724 km (0.115 R)
• M31: 35,617,308 km (0.049 R)
• M32: 35,844,547 km (0.056 R)
• M33: 36,301,569 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.8

Radius: 5.6

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 6.69 AU - 10.07 AU

Year: 15424 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,788,558 km

• M1: 76,594 km (0.057 R)
• M2: 283,338 km (0.061 R)
• M3: 616,044 km (0.044 R)
• M4: 1,073,365 km (0.082 R)
• M5: 1,516,025 km (0.105 R)
• M6: 1,794,726 km (0.09 R)
• M7: 2,455,350 km (0.113 R)
• M8: 4,470,433 km (0.099 R)
• M9: 5,172,047 km (0.072 R)
• M10: 6,050,785 km (0.081 R)
• M11: 6,985,772 km (0.108 R)
• M12: 8,451,233 km (0.11 R)
• M13: 9,811,825 km (0.06 R)
• M14: 11,420,900 km (0.07 R)
• M15: 12,606,014 km (0.062 R)
• M16: 13,379,435 km (0.099 R)
• M17: 15,086,048 km (0.073 R)
• M18: 17,290,372 km (0.059 R)
• M19: 22,929,314 km (0.048 R)
• M20: 27,171,012 km (0.103 R)
• M21: 27,464,523 km (0.113 R)
• M22: 41,532,857 km (0.1 R)
• M23: 41,922,410 km (0.079 R)
• M24: 45,538,489 km (0.112 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: 326 - 14,789 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit