🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.6 AU - 0.74 AU

Year: 349 Days

Day: 29.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.5

Radius: 13.3

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.89 AU - 1.03 AU

Year: 598 Days

Day: 12.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 51,307,062 km

• M1: 165,754 km (0.098 R)
• M2: 1,453,643 km (0.045 R)
• M3: 2,043,806 km (0.057 R)
• M4: 2,526,409 km (0.089 R)
• M5: 4,311,560 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.8

Radius: 13.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.36 AU - 1.56 AU

Year: 1122 Days

Day: 10.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,307,062 km

• M1: 170,392 km (0.082 R)
• M2: 603,478 km (0.117 R)
• M3: 1,196,933 km (0.09 R)
• M4: 1,940,733 km (0.062 R)
• M5: 2,705,328 km (0.098 R)
• M6: 3,242,534 km (0.114 R)
• M7: 5,028,284 km (0.092 R)
• M8: 5,672,302 km (0.118 R)
• M9: 8,061,979 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.7

Radius: 15

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.38 AU - 1.74 AU

Year: 1239 Days

Day: 11.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,307,062 km

• M1: 186,549 km (0.098 R)
• M2: 806,183 km (0.076 R)
• M3: 1,649,765 km (0.091 R)
• M4: 2,142,242 km (0.052 R)
• M5: 2,662,244 km (0.06 R)
• M6: 3,198,253 km (0.108 R)
• M7: 3,791,408 km (0.114 R)
• M8: 4,956,776 km (0.081 R)
• M9: 5,858,851 km (0.084 R)
• M10: 7,365,900 km (0.104 R)
• M11: 8,067,514 km (0.103 R)
• M12: 10,108,179 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116

Radius: 12.4

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.9 AU - 2.1 AU

Year: 1798 Days

Day: 11.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,307,062 km

• M1: 154,235 km (0.107 R)
• M2: 635,043 km (0.109 R)
• M3: 1,142,030 km (0.114 R)
• M4: 2,432,162 km (0.076 R)
• M5: 3,556,540 km (0.105 R)
• M6: 4,546,130 km (0.103 R)
• M7: 6,001,867 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.3

Radius: 8.4

Gravity: 13.89 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.08 AU - 2.12 AU

Year: 1935 Days

Day: 12.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 51,307,062 km

• M1: 104,419 km (0.063 R)
• M2: 474,076 km (0.11 R)
• M3: 835,803 km (0.117 R)
• M4: 1,211,743 km (0.113 R)
• M5: 1,473,838 km (0.041 R)
• M6: 2,141,494 km (0.11 R)
• M7: 2,501,725 km (0.102 R)
• M8: 3,682,800 km (0.066 R)
• M9: 3,985,138 km (0.084 R)
• M10: 4,263,091 km (0.101 R)
• M11: 6,161,637 km (0.111 R)
• M12: 6,643,941 km (0.082 R)
• M13: 7,007,613 km (0.083 R)
• M14: 7,623,358 km (0.117 R)
• M15: 10,414,256 km (0.115 R)
• M16: 16,098,975 km (0.118 R)
• M17: 16,756,158 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.2

Radius: 11.1

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.51 AU - 2.67 AU

Year: 2650 Days

Day: 13.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,307,062 km

• M1: 138,827 km (0.087 R)
• M2: 510,129 km (0.106 R)
• M3: 948,451 km (0.046 R)
• M4: 1,294,171 km (0.11 R)
• M5: 2,375,465 km (0.1 R)
• M6: 2,811,094 km (0.103 R)
• M7: 3,248,518 km (0.109 R)
• M8: 4,752,575 km (0.092 R)
• M9: 5,162,922 km (0.09 R)
• M10: 5,596,905 km (0.051 R)
• M11: 7,018,085 km (0.053 R)
• M12: 7,521,183 km (0.09 R)
• M13: 8,902,270 km (0.058 R)
• M14: 9,707,107 km (0.08 R)
• M15: 12,584,622 km (0.104 R)
• M16: 13,418,031 km (0.072 R)
• M17: 14,428,565 km (0.119 R)
• M18: 15,146,186 km (0.116 R)
• M19: 17,764,897 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.5

Radius: 8.2

Gravity: 11.86 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 4.71 AU - 6.33 AU

Year: 8246 Days

Day: 9.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 51,307,062 km

• M1: 103,073 km (0.029 R)
• M2: 373,097 km (0.081 R)
• M3: 925,263 km (0.066 R)
• M4: 1,320,500 km (0.094 R)
• M5: 1,810,284 km (0.077 R)
• M6: 4,053,205 km (0.079 R)
• M7: 5,086,776 km (0.096 R)
• M8: 7,542,874 km (0.087 R)
• M9: 8,512,268 km (0.085 R)
• M10: 8,823,133 km (0.104 R)
• M11: 11,917,864 km (0.099 R)
• M12: 14,446,218 km (0.097 R)
• M13: 15,735,901 km (0.081 R)
• M14: 16,137,272 km (0.099 R)
• M15: 18,468,456 km (0.119 R)
• M16: 20,535,599 km (0.055 R)
• M17: 26,699,181 km (0.119 R)
• M18: 26,983,716 km (0.096 R)
• M19: 27,462,728 km (0.097 R)
• M20: 28,833,643 km (0.119 R)
• M21: 30,044,788 km (0.063 R)
• M22: 33,220,152 km (0.095 R)
• M23: 35,457,089 km (0.069 R)
• M24: 37,199,306 km (0.07 R)
• M25: 37,911,990 km (0.093 R)
• M26: 39,610,225 km (0.105 R)
• M27: 40,104,496 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.6

Radius: 5.3

Gravity: 26.69 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.18 AU - 8.06 AU

Year: 10830 Days

Day: 18.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 51,307,062 km

• M1: 65,973 km (0.069 R)
• M2: 248,632 km (0.091 R)
• M3: 469,737 km (0.082 R)
• M4: 803,191 km (0.082 R)
• M5: 1,012,329 km (0.111 R)
• M6: 1,347,877 km (0.111 R)
• M7: 1,600,847 km (0.115 R)
• M8: 1,835,416 km (0.065 R)
• M9: 3,034,742 km (0.106 R)
• M10: 3,920,362 km (0.117 R)
• M11: 4,116,335 km (0.087 R)
• M12: 5,606,330 km (0.087 R)
• M13: 6,886,140 km (0.118 R)
• M14: 7,855,085 km (0.082 R)
• M15: 8,167,296 km (0.116 R)
• M16: 8,674,433 km (0.108 R)
• M17: 10,642,393 km (0.113 R)
• M18: 13,513,026 km (0.093 R)
• M19: 13,703,913 km (0.065 R)
• M20: 14,156,297 km (0.057 R)
• M21: 15,783,174 km (0.073 R)
• M22: 18,764,959 km (0.117 R)
• M23: 19,162,141 km (0.105 R)
• M24: 20,638,971 km (0.113 R)
• M25: 21,233,174 km (0.107 R)
• M26: 23,175,104 km (0.061 R)
• M27: 29,066,717 km (0.09 R)
• M28: 29,491,575 km (0.101 R)
• M29: 30,901,235 km (0.063 R)
• M30: 32,128,536 km (0.056 R)
• M31: 32,468,871 km (0.108 R)
• M32: 35,278,170 km (0.038 R)
• M33: 35,883,144 km (0.102 R)
• M34: 43,414,948 km (0.081 R)
• M35: 44,670,672 km (0.028 R)
• M36: 49,031,151 km (0.11 R)
• M37: 49,331,543 km (0.096 R)
• M38: 49,784,526 km (0.114 R)
• M39: 51,159,779 km (0.088 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.1

Radius: 5

Gravity: 25.08 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.03 AU - 7.81 AU

Year: 11574 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 51,307,062 km

• M1: 121,473 km (0.118 R)
• M2: 284,086 km (0.071 R)
• M3: 472,131 km (0.06 R)
• M4: 853,306 km (0.095 R)
• M5: 1,015,770 km (0.1 R)
• M6: 1,459,626 km (0.068 R)
• M7: 2,112,023 km (0.093 R)
• M8: 2,335,522 km (0.099 R)
• M9: 2,721,484 km (0.058 R)
• M10: 3,968,383 km (0.054 R)
• M11: 4,953,185 km (0.065 R)
• M12: 5,214,533 km (0.119 R)
• M13: 5,450,748 km (0.073 R)
• M14: 5,836,411 km (0.103 R)
• M15: 8,086,662 km (0.107 R)
• M16: 9,109,912 km (0.061 R)
• M17: 10,008,995 km (0.072 R)
• M18: 10,321,505 km (0.077 R)
• M19: 11,866,253 km (0.087 R)
• M20: 12,157,520 km (0.101 R)
• M21: 12,814,853 km (0.11 R)
• M22: 13,749,241 km (0.103 R)
• M23: 14,728,060 km (0.041 R)
• M24: 15,543,817 km (0.074 R)
• M25: 15,822,368 km (0.119 R)
• M26: 16,317,837 km (0.109 R)
• M27: 23,094,470 km (0.103 R)
• M28: 32,429,976 km (0.069 R)
• M29: 33,923,561 km (0.061 R)
• M30: 37,669,342 km (0.113 R)
• M31: 44,555,631 km (0.061 R)
• M32: 50,238,406 km (0.053 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 18,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit