🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.45 AU - 0.69 AU

Year: 278 Days

Day: 39.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 29.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.9

Radius: 9.1

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.58 AU - 0.86 AU

Year: 394 Days

Day: 12.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,083,090 km

• M1: 113,545 km (0.072 R)
• M2: 573,558 km (0.109 R)
• M3: 1,061,846 km (0.113 R)
• M4: 1,382,434 km (0.096 R)
• M5: 2,022,414 km (0.03 R)
• M6: 3,593,790 km (0.085 R)
• M7: 4,330,260 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.2

Radius: 8.8

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.63 AU - 1.91 AU

Year: 1520 Days

Day: 10.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,083,090 km

• M1: 109,506 km (0.104 R)
• M2: 405,410 km (0.036 R)
• M3: 742,005 km (0.065 R)
• M4: 1,067,082 km (0.084 R)
• M5: 1,479,523 km (0.118 R)
• M6: 2,148,076 km (0.117 R)
• M7: 2,745,420 km (0.102 R)
• M8: 4,056,496 km (0.071 R)
• M9: 5,231,886 km (0.119 R)
• M10: 5,655,548 km (0.069 R)
• M11: 6,056,320 km (0.114 R)
• M12: 6,890,029 km (0.079 R)
• M13: 7,637,121 km (0.118 R)
• M14: 9,819,006 km (0.108 R)
• M15: 10,530,793 km (0.075 R)
• M16: 10,933,360 km (0.093 R)
• M17: 12,497,705 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.7

Radius: 14.2

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.81 AU - 2.81 AU

Year: 2267 Days

Day: 6.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,083,090 km

• M1: 177,573 km (0.091 R)
• M2: 635,492 km (0.098 R)
• M3: 1,124,378 km (0.086 R)
• M4: 1,610,421 km (0.093 R)
• M5: 2,537,778 km (0.083 R)
• M6: 3,217,701 km (0.094 R)
• M7: 3,982,894 km (0.045 R)
• M8: 4,446,198 km (0.067 R)
• M9: 4,925,959 km (0.052 R)
• M10: 5,397,790 km (0.092 R)
• M11: 5,990,348 km (0.104 R)
• M12: 6,529,199 km (0.064 R)
• M13: 7,464,335 km (0.097 R)
• M14: 8,749,231 km (0.078 R)
• M15: 9,600,892 km (0.101 R)
• M16: 10,912,566 km (0.092 R)
• M17: 11,434,214 km (0.095 R)
• M18: 12,565,324 km (0.09 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.9

Radius: 9.5

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.62 AU - 2.74 AU

Year: 2833 Days

Day: 8.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,083,090 km

• M1: 118,332 km (0.08 R)
• M2: 505,491 km (0.061 R)
• M3: 1,046,736 km (0.118 R)
• M4: 1,645,876 km (0.056 R)
• M5: 1,980,526 km (0.102 R)
• M6: 2,546,605 km (0.083 R)
• M7: 4,102,422 km (0.103 R)
• M8: 4,547,177 km (0.089 R)
• M9: 5,165,914 km (0.041 R)
• M10: 6,266,056 km (0.063 R)
• M11: 7,241,135 km (0.108 R)
• M12: 7,702,196 km (0.085 R)
• M13: 8,413,683 km (0.098 R)
• M14: 8,993,076 km (0.081 R)
• M15: 9,819,006 km (0.032 R)
• M16: 10,384,336 km (0.089 R)
• M17: 11,538,783 km (0.113 R)
• M18: 19,487,067 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877

Radius: 13.6

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.84 AU - 2.9 AU

Year: 3139 Days

Day: 7.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,083,090 km

• M1: 169,195 km (0.093 R)
• M2: 751,430 km (0.117 R)
• M3: 1,219,223 km (0.11 R)
• M4: 1,802,505 km (0.101 R)
• M5: 2,244,566 km (0.036 R)
• M6: 2,792,693 km (0.054 R)
• M7: 3,723,192 km (0.1 R)
• M8: 4,474,772 km (0.112 R)
• M9: 5,071,966 km (0.045 R)
• M10: 6,725,023 km (0.108 R)
• M11: 7,808,560 km (0.03 R)
• M12: 8,392,441 km (0.064 R)
• M13: 10,565,948 km (0.107 R)
• M14: 13,283,543 km (0.107 R)
• M15: 13,769,736 km (0.07 R)
• M16: 14,217,632 km (0.112 R)
• M17: 14,985,518 km (0.106 R)
• M18: 15,943,393 km (0.1 R)
• M19: 16,493,016 km (0.059 R)
• M20: 19,185,777 km (0.11 R)
• M21: 19,933,916 km (0.101 R)
• M22: 21,223,899 km (0.109 R)
• M23: 23,685,232 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.2

Radius: 14.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 3.3 AU - 3.92 AU

Year: 4429 Days

Day: 7.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,083,090 km

• M1: 176,675 km (0.093 R)
• M2: 671,994 km (0.116 R)
• M3: 1,535,772 km (0.087 R)
• M4: 2,233,795 km (0.093 R)
• M5: 4,502,148 km (0.077 R)
• M6: 4,960,965 km (0.071 R)
• M7: 8,301,036 km (0.117 R)
• M8: 9,145,965 km (0.071 R)
• M9: 9,687,809 km (0.096 R)
• M10: 11,982,191 km (0.079 R)
• M11: 12,726,590 km (0.063 R)
• M12: 13,354,004 km (0.053 R)
• M13: 14,052,626 km (0.097 R)
• M14: 18,340,101 km (0.085 R)
• M15: 23,574,231 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.9

Radius: 9.3

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.17 AU - 5.01 AU

Year: 5341 Days

Day: 12.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,083,090 km

• M1: 115,639 km (0.111 R)
• M2: 620,981 km (0.062 R)
• M3: 997,818 km (0.105 R)
• M4: 1,767,349 km (0.071 R)
• M5: 2,512,047 km (0.043 R)
• M6: 2,889,782 km (0.09 R)
• M7: 3,388,841 km (0.074 R)
• M8: 3,715,263 km (0.072 R)
• M9: 4,849,813 km (0.096 R)
• M10: 6,394,112 km (0.111 R)
• M11: 6,758,682 km (0.112 R)
• M12: 7,349,743 km (0.112 R)
• M13: 8,012,462 km (0.098 R)
• M14: 8,515,560 km (0.083 R)
• M15: 9,080,740 km (0.054 R)
• M16: 14,314,571 km (0.098 R)
• M17: 16,988,933 km (0.051 R)
• M18: 18,278,167 km (0.12 R)
• M19: 18,811,633 km (0.118 R)
• M20: 19,150,323 km (0.116 R)
• M21: 22,995,137 km (0.114 R)
• M22: 27,067,192 km (0.035 R)
• M23: 29,091,999 km (0.102 R)
• M24: 29,911,197 km (0.077 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.9

Radius: 13.1

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.52 AU - 6.1 AU

Year: 7901 Days

Day: 10.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,083,090 km

• M1: 162,912 km (0.054 R)
• M2: 604,076 km (0.092 R)
• M3: 1,071,420 km (0.102 R)
• M4: 1,547,740 km (0.097 R)
• M5: 3,393,329 km (0.085 R)
• M6: 4,640,227 km (0.085 R)
• M7: 5,247,445 km (0.1 R)
• M8: 7,055,185 km (0.096 R)
• M9: 7,507,719 km (0.116 R)
• M10: 11,191,417 km (0.096 R)
• M11: 13,856,353 km (0.107 R)
• M12: 14,268,944 km (0.058 R)
• M13: 14,689,613 km (0.088 R)
• M14: 15,305,059 km (0.101 R)
• M15: 16,130,839 km (0.058 R)
• M16: 18,858,906 km (0.071 R)
• M17: 24,179,953 km (0.049 R)
• M18: 24,951,728 km (0.114 R)
• M19: 25,917,532 km (0.052 R)
• M20: 27,458,689 km (0.072 R)
• M21: 28,868,649 km (0.072 R)
• M22: 29,445,947 km (0.112 R)
• M23: 30,129,310 km (0.114 R)
• M24: 34,452,988 km (0.11 R)
• M25: 35,981,579 km (0.103 R)
• M26: 38,474,478 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 558.6

Radius: 3.3

Gravity: 51.29 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 7.69 AU - 10.37 AU

Year: 17521 Days

Day: 19.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 65,083,090 km

• M1: 41,289 km (0.055 R)
• M2: 162,014 km (0.072 R)
• M3: 383,719 km (0.086 R)
• M4: 523,293 km (0.109 R)
• M5: 752,627 km (0.081 R)
• M6: 2,464,475 km (0.046 R)
• M7: 2,642,796 km (0.071 R)
• M8: 3,389,289 km (0.073 R)
• M9: 3,869,648 km (0.114 R)
• M10: 3,989,027 km (0.109 R)
• M11: 4,491,078 km (0.101 R)
• M12: 5,140,482 km (0.103 R)
• M13: 6,413,410 km (0.076 R)
• M14: 6,967,820 km (0.085 R)
• M15: 7,324,461 km (0.058 R)
• M16: 8,171,335 km (0.119 R)
• M17: 10,569,987 km (0.12 R)
• M18: 10,862,451 km (0.099 R)
• M19: 12,149,890 km (0.114 R)
• M20: 12,666,003 km (0.097 R)
• M21: 14,444,273 km (0.074 R)
• M22: 15,023,217 km (0.099 R)
• M23: 15,542,321 km (0.111 R)
• M24: 18,151,607 km (0.09 R)
• M25: 19,955,758 km (0.063 R)
• M26: 22,159,783 km (0.099 R)
• M27: 26,827,386 km (0.089 R)
• M28: 28,256,195 km (0.08 R)
• M29: 31,384,137 km (0.096 R)
• M30: 37,365,808 km (0.073 R)
• M31: 39,006,298 km (0.1 R)
• M32: 40,409,377 km (0.081 R)
• M33: 41,991,374 km (0.032 R)
• M34: 44,365,343 km (0.111 R)
• M35: 45,739,250 km (0.085 R)
• M36: 46,358,884 km (0.041 R)
• M37: 51,352,012 km (0.032 R)
• M38: 56,159,340 km (0.028 R)
• M39: 59,586,926 km (0.063 R)
• M40: 60,697,690 km (0.116 R)
• M41: 61,258,084 km (0.08 R)
• M42: 61,445,680 km (0.074 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: 480 - 20,096 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit