🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.51 AU - 0.79 AU

Year: 338 Days

Day: 26.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,811,430 km

• M1: 77,043 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.4

Radius: 8.6

Gravity: 10.42 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.61 AU - 0.89 AU

Year: 419 Days

Day: 11.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,811,430 km

• M1: 106,962 km (0.106 R)
• M2: 389,702 km (0.056 R)
• M3: 785,389 km (0.088 R)
• M4: 1,053,169 km (0.081 R)
• M5: 1,351,916 km (0.108 R)
• M6: 1,700,180 km (0.096 R)
• M7: 1,973,495 km (0.085 R)
• M8: 2,610,184 km (0.078 R)
• M9: 3,020,830 km (0.086 R)
• M10: 3,486,229 km (0.113 R)
• M11: 4,161,962 km (0.106 R)
• M12: 5,737,826 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.1

Radius: 10.7

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.09 AU - 1.13 AU

Year: 755 Days

Day: 10 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,811,430 km

• M1: 133,142 km (0.119 R)
• M2: 525,986 km (0.066 R)
• M3: 1,003,652 km (0.103 R)
• M4: 1,610,421 km (0.048 R)
• M5: 1,954,945 km (0.09 R)
• M6: 2,561,116 km (0.119 R)
• M7: 3,012,602 km (0.051 R)
• M8: 3,661,408 km (0.084 R)
• M9: 4,091,053 km (0.057 R)
• M10: 5,305,937 km (0.044 R)
• M11: 5,784,501 km (0.097 R)
• M12: 6,214,744 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.5

Radius: 10.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.29 AU - 1.29 AU

Year: 946 Days

Day: 7 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,811,430 km

• M1: 129,402 km (0.117 R)
• M2: 571,314 km (0.084 R)
• M3: 977,921 km (0.074 R)
• M4: 2,921,646 km (0.074 R)
• M5: 4,067,865 km (0.058 R)
• M6: 4,499,306 km (0.099 R)
• M7: 5,029,929 km (0.097 R)
• M8: 5,903,431 km (0.057 R)
• M9: 7,310,250 km (0.103 R)
• M10: 7,950,229 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.9

Radius: 9.8

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.65 AU - 3.95 AU

Year: 3871 Days

Day: 6.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,811,430 km

• M1: 121,922 km (0.118 R)
• M2: 603,478 km (0.113 R)
• M3: 1,696,739 km (0.118 R)
• M4: 2,939,449 km (0.092 R)
• M5: 3,276,642 km (0.118 R)
• M6: 3,725,885 km (0.032 R)
• M7: 4,872,702 km (0.112 R)
• M8: 5,414,545 km (0.111 R)
• M9: 9,614,805 km (0.068 R)
• M10: 11,149,529 km (0.077 R)
• M11: 12,521,641 km (0.044 R)
• M12: 14,347,782 km (0.061 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 451

Radius: 3.1

Gravity: 46.93 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.96 AU - 8.1 AU

Year: 10774 Days

Day: 17.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,811,430 km

• M1: 38,596 km (0.098 R)
• M2: 269,276 km (0.089 R)
• M3: 388,805 km (0.088 R)
• M4: 492,177 km (0.111 R)
• M5: 659,128 km (0.086 R)
• M6: 1,020,557 km (0.108 R)
• M7: 1,174,044 km (0.069 R)
• M8: 2,150,320 km (0.117 R)
• M9: 2,274,486 km (0.067 R)
• M10: 2,596,121 km (0.049 R)
• M11: 3,423,547 km (0.118 R)
• M12: 4,850,711 km (0.104 R)
• M13: 6,089,232 km (0.052 R)
• M14: 7,686,937 km (0.098 R)
• M15: 7,893,980 km (0.11 R)
• M16: 8,233,119 km (0.113 R)
• M17: 9,638,890 km (0.079 R)
• M18: 10,373,416 km (0.076 R)
• M19: 10,626,236 km (0.086 R)
• M20: 13,326,029 km (0.086 R)
• M21: 14,297,966 km (0.069 R)
• M22: 20,184,493 km (0.065 R)
• M23: 21,873,752 km (0.116 R)
• M24: 24,357,974 km (0.098 R)
• M25: 33,581,431 km (0.064 R)
• M26: 35,144,729 km (0.115 R)
• M27: 37,579,733 km (0.108 R)
• M28: 38,175,581 km (0.047 R)
• M29: 38,536,112 km (0.078 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.7

Radius: 5.2

Gravity: 20.14 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 7.31 AU - 11.55 AU

Year: 18697 Days

Day: 16.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,811,430 km

• M1: 64,925 km (0.075 R)
• M2: 345,721 km (0.066 R)
• M3: 644,767 km (0.071 R)
• M4: 894,595 km (0.074 R)
• M5: 1,155,045 km (0.109 R)
• M6: 2,312,633 km (0.099 R)
• M7: 2,902,348 km (0.067 R)
• M8: 3,530,959 km (0.097 R)
• M9: 4,151,640 km (0.058 R)
• M10: 5,958,184 km (0.107 R)
• M11: 6,159,543 km (0.102 R)
• M12: 6,661,444 km (0.086 R)
• M13: 8,430,887 km (0.097 R)
• M14: 8,684,904 km (0.066 R)
• M15: 11,889,440 km (0.116 R)
• M16: 12,600,030 km (0.088 R)
• M17: 14,681,385 km (0.1 R)
• M18: 16,034,498 km (0.112 R)
• M19: 18,301,056 km (0.07 R)
• M20: 18,899,447 km (0.097 R)
• M21: 19,865,849 km (0.065 R)
• M22: 21,706,801 km (0.119 R)
• M23: 22,864,239 km (0.07 R)
• M24: 26,474,186 km (0.087 R)
• M25: 28,927,591 km (0.053 R)
• M26: 30,091,312 km (0.037 R)
• M27: 30,565,388 km (0.102 R)
• M28: 32,885,651 km (0.064 R)
• M29: 36,514,895 km (0.117 R)
• M30: 42,149,499 km (0.107 R)
• M31: 42,594,104 km (0.117 R)
• M32: 47,372,410 km (0.051 R)
• M33: 54,049,860 km (0.07 R)
• M34: 61,707,775 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 86.9

Radius: 4.6

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.45 AU - 10.59 AU

Year: 18966 Days

Day: 17.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,811,430 km

• M1: 57,146 km (0.095 R)
• M2: 712,235 km (0.039 R)
• M3: 974,481 km (0.089 R)
• M4: 1,208,900 km (0.108 R)
• M5: 1,596,658 km (0.059 R)
• M6: 3,370,141 km (0.11 R)
• M7: 4,260,697 km (0.111 R)
• M8: 4,418,672 km (0.108 R)
• M9: 5,480,817 km (0.103 R)
• M10: 6,187,368 km (0.05 R)
• M11: 9,990,146 km (0.088 R)
• M12: 14,156,297 km (0.045 R)
• M13: 17,274,665 km (0.067 R)
• M14: 17,542,295 km (0.107 R)
• M15: 18,292,528 km (0.085 R)
• M16: 19,856,724 km (0.071 R)
• M17: 22,925,275 km (0.1 R)
• M18: 23,739,088 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.4

Radius: 3

Gravity: 61.82 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 8.6 AU - 11.16 AU

Year: 20052 Days

Day: 22.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 68,811,430 km

• M1: 37,250 km (0.108 R)
• M2: 220,058 km (0.092 R)
• M3: 356,641 km (0.079 R)
• M4: 524,789 km (0.119 R)
• M5: 714,479 km (0.094 R)
• M6: 815,009 km (0.108 R)
• M7: 1,044,642 km (0.088 R)
• M8: 1,359,994 km (0.107 R)
• M9: 1,597,556 km (0.096 R)
• M10: 2,344,647 km (0.036 R)
• M11: 4,125,161 km (0.116 R)
• M12: 4,936,131 km (0.081 R)
• M13: 5,191,345 km (0.113 R)
• M14: 5,688,609 km (0.041 R)
• M15: 6,050,935 km (0.05 R)
• M16: 6,300,763 km (0.119 R)
• M17: 6,910,823 km (0.111 R)
• M18: 8,046,271 km (0.091 R)
• M19: 9,355,402 km (0.069 R)
• M20: 10,799,919 km (0.113 R)
• M21: 10,921,542 km (0.073 R)
• M22: 11,105,697 km (0.081 R)
• M23: 11,417,160 km (0.082 R)
• M24: 15,237,291 km (0.116 R)
• M25: 18,582,898 km (0.096 R)
• M26: 20,658,419 km (0.097 R)
• M27: 20,752,067 km (0.09 R)
• M28: 24,208,825 km (0.12 R)
• M29: 29,784,338 km (0.101 R)
• M30: 30,505,848 km (0.118 R)
• M31: 31,610,030 km (0.116 R)
• M32: 32,234,751 km (0.104 R)
• M33: 34,289,328 km (0.104 R)
• M34: 35,081,748 km (0.09 R)
• M35: 38,656,987 km (0.119 R)
• M36: 45,722,046 km (0.099 R)
• M37: 46,360,231 km (0.097 R)
• M38: 55,025,089 km (0.053 R)
• M39: 58,510,570 km (0.092 R)
• M40: 61,751,308 km (0.081 R)
• M41: 64,708,260 km (0.093 R)
• M42: 66,323,318 km (0.074 R)
• M43: 70,266,269 km (0.061 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 394.6

Radius: 8

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 8.67 AU - 12.77 AU

Year: 22662 Days

Day: 24.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 68,811,430 km

• M1: 130,898 km (0.119 R)
• M2: 2,087,638 km (0.064 R)
• M3: 2,351,080 km (0.083 R)
• M4: 3,608,301 km (0.056 R)
• M5: 4,238,407 km (0.028 R)
• M6: 5,374,154 km (0.071 R)
• M7: 6,032,833 km (0.111 R)
• M8: 7,746,028 km (0.066 R)
• M9: 8,332,751 km (0.051 R)
• M10: 11,161,348 km (0.097 R)
• M11: 27,943,237 km (0.115 R)
• M12: 34,364,576 km (0.06 R)
• M13: 41,116,975 km (0.097 R)
• M14: 41,556,942 km (0.089 R)
• M15: 44,109,830 km (0.059 R)
• M16: 52,909,775 km (0.078 R)
• M17: 63,981,962 km (0.101 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 516 - 11,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit