🌌 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: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.5 AU - 0.64 AU

Year: 282 Days

Day: 41.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,191,645 km

• M1: 152,739 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.8

Radius: 10.9

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.64 AU - 0.72 AU

Year: 368 Days

Day: 9.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,191,645 km

• M1: 135,536 km (0.064 R)
• M2: 614,548 km (0.039 R)
• M3: 984,803 km (0.107 R)
• M4: 1,324,988 km (0.096 R)
• M5: 1,880,595 km (0.118 R)
• M6: 2,271,644 km (0.108 R)
• M7: 2,862,106 km (0.101 R)
• M8: 3,242,235 km (0.1 R)
• M9: 3,702,996 km (0.082 R)
• M10: 4,143,412 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.6

Radius: 12.9

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.68 AU - 0.92 AU

Year: 469 Days

Day: 14.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,191,645 km

• M1: 160,369 km (0.067 R)
• M2: 614,847 km (0.071 R)
• M3: 1,271,582 km (0.102 R)
• M4: 1,724,415 km (0.114 R)
• M5: 2,631,726 km (0.075 R)
• M6: 3,296,389 km (0.105 R)
• M7: 3,958,958 km (0.085 R)
• M8: 4,418,822 km (0.068 R)
• M9: 6,018,322 km (0.096 R)
• M10: 6,728,314 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703

Radius: 14.6

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.23 AU - 2.49 AU

Year: 2378 Days

Day: 14.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,191,645 km

• M1: 181,612 km (0.075 R)
• M2: 663,018 km (0.059 R)
• M3: 1,280,109 km (0.099 R)
• M4: 2,065,348 km (0.102 R)
• M5: 2,964,431 km (0.113 R)
• M6: 4,456,521 km (0.078 R)
• M7: 5,709,104 km (0.089 R)
• M8: 6,377,806 km (0.102 R)
• M9: 7,301,722 km (0.045 R)
• M10: 8,571,808 km (0.081 R)
• M11: 9,733,137 km (0.061 R)
• M12: 10,277,673 km (0.071 R)
• M13: 10,958,194 km (0.1 R)
• M14: 11,628,242 km (0.112 R)
• M15: 13,137,685 km (0.119 R)
• M16: 14,030,934 km (0.065 R)
• M17: 14,632,916 km (0.063 R)
• M18: 16,543,281 km (0.083 R)
• M19: 17,479,015 km (0.071 R)
• M20: 18,176,590 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.9

Radius: 11.1

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.15 AU - 3.29 AU

Year: 2943 Days

Day: 8 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,191,645 km

• M1: 138,079 km (0.075 R)
• M2: 607,218 km (0.11 R)
• M3: 1,165,068 km (0.119 R)
• M4: 1,565,841 km (0.11 R)
• M5: 2,277,927 km (0.062 R)
• M6: 2,845,950 km (0.075 R)
• M7: 3,194,363 km (0.083 R)
• M8: 3,770,914 km (0.062 R)
• M9: 4,340,881 km (0.079 R)
• M10: 6,113,167 km (0.102 R)
• M11: 7,755,752 km (0.089 R)
• M12: 8,237,607 km (0.086 R)
• M13: 8,951,937 km (0.118 R)
• M14: 9,967,856 km (0.034 R)
• M15: 11,165,387 km (0.065 R)
• M16: 12,003,135 km (0.099 R)
• M17: 12,687,395 km (0.094 R)
• M18: 13,118,387 km (0.111 R)
• M19: 13,558,953 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.9

Radius: 14.9

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.58 AU - 3.06 AU

Year: 3107 Days

Day: 12.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,191,645 km

• M1: 185,352 km (0.116 R)
• M2: 684,410 km (0.065 R)
• M3: 1,378,245 km (0.074 R)
• M4: 2,112,771 km (0.051 R)
• M5: 3,542,926 km (0.089 R)
• M6: 4,310,214 km (0.106 R)
• M7: 4,962,909 km (0.096 R)
• M8: 5,627,423 km (0.1 R)
• M9: 6,380,050 km (0.111 R)
• M10: 8,121,220 km (0.109 R)
• M11: 9,421,375 km (0.085 R)
• M12: 10,648,676 km (0.092 R)
• M13: 12,990,630 km (0.083 R)
• M14: 14,307,690 km (0.104 R)
• M15: 18,017,717 km (0.064 R)
• M16: 22,258,667 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.1

Radius: 11.6

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 3.2 AU - 3.74 AU

Year: 4240 Days

Day: 7.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,191,645 km

• M1: 145,110 km (0.08 R)
• M2: 889,659 km (0.083 R)
• M3: 1,438,832 km (0.094 R)
• M4: 1,992,793 km (0.093 R)
• M5: 2,651,622 km (0.1 R)
• M6: 3,232,361 km (0.11 R)
• M7: 3,918,716 km (0.095 R)
• M8: 7,533,599 km (0.062 R)
• M9: 8,140,219 km (0.106 R)
• M10: 11,304,513 km (0.062 R)
• M11: 19,140,898 km (0.034 R)
• M12: 21,799,103 km (0.037 R)
• M13: 23,105,391 km (0.114 R)
• M14: 25,555,355 km (0.111 R)
• M15: 27,920,797 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.3

Radius: 10.9

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.07 AU - 4.59 AU

Year: 4917 Days

Day: 13 Hours

Environment

Temp: -215 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,191,645 km

• M1: 135,536 km (0.078 R)
• M2: 545,434 km (0.088 R)
• M3: 1,037,611 km (0.092 R)
• M4: 1,551,480 km (0.111 R)
• M5: 1,984,416 km (0.091 R)
• M6: 2,607,640 km (0.076 R)
• M7: 3,044,915 km (0.025 R)
• M8: 4,068,314 km (0.114 R)
• M9: 4,425,554 km (0.066 R)
• M10: 5,076,454 km (0.104 R)
• M11: 5,464,960 km (0.062 R)
• M12: 6,629,729 km (0.078 R)
• M13: 8,695,376 km (0.119 R)
• M14: 11,817,484 km (0.107 R)
• M15: 12,225,437 km (0.081 R)
• M16: 13,021,896 km (0.115 R)
• M17: 14,153,903 km (0.116 R)
• M18: 16,166,294 km (0.074 R)
• M19: 18,122,436 km (0.05 R)
• M20: 19,157,653 km (0.086 R)
• M21: 21,815,857 km (0.107 R)
• M22: 22,638,197 km (0.081 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125

Radius: 13.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.46 AU - 5.44 AU

Year: 6158 Days

Day: 9.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 64,191,645 km

• M1: 182,360 km (0.109 R)
• M2: 739,163 km (0.098 R)
• M3: 1,214,585 km (0.094 R)
• M4: 1,970,802 km (0.097 R)
• M5: 2,637,261 km (0.106 R)
• M6: 3,540,682 km (0.116 R)
• M7: 6,550,592 km (0.027 R)
• M8: 6,976,497 km (0.078 R)
• M9: 9,110,810 km (0.098 R)
• M10: 9,898,293 km (0.102 R)
• M11: 10,460,930 km (0.115 R)
• M12: 11,568,403 km (0.093 R)
• M13: 13,510,034 km (0.106 R)
• M14: 13,969,449 km (0.1 R)
• M15: 16,425,547 km (0.097 R)
• M16: 17,865,427 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.3

Radius: 3.3

Gravity: 75.42 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7 AU - 8.5 AU

Year: 14153 Days

Day: 19.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 64,191,645 km

• M1: 40,990 km (0.113 R)
• M2: 157,527 km (0.083 R)
• M3: 502,200 km (0.068 R)
• M4: 733,478 km (0.086 R)
• M5: 2,008,202 km (0.086 R)
• M6: 2,388,629 km (0.11 R)
• M7: 2,675,259 km (0.033 R)
• M8: 2,815,133 km (0.085 R)
• M9: 3,533,352 km (0.091 R)
• M10: 5,105,925 km (0.034 R)
• M11: 6,829,741 km (0.103 R)
• M12: 9,919,685 km (0.103 R)
• M13: 10,142,436 km (0.087 R)
• M14: 10,948,619 km (0.089 R)
• M15: 11,306,906 km (0.057 R)
• M16: 12,622,470 km (0.096 R)
• M17: 12,884,117 km (0.082 R)
• M18: 13,897,642 km (0.12 R)
• M19: 18,568,088 km (0.109 R)
• M20: 19,508,460 km (0.049 R)
• M21: 21,023,587 km (0.086 R)
• M22: 22,807,691 km (0.093 R)
• M23: 25,931,145 km (0.113 R)
• M24: 28,873,885 km (0.06 R)
• M25: 30,718,576 km (0.116 R)
• M26: 30,954,642 km (0.03 R)
• M27: 31,549,892 km (0.093 R)
• M28: 33,009,518 km (0.111 R)
• M29: 35,411,611 km (0.086 R)
• M30: 46,186,099 km (0.095 R)
• M31: 46,495,766 km (0.083 R)
• M32: 46,651,049 km (0.09 R)
• M33: 48,383,093 km (0.112 R)
• M34: 49,023,372 km (0.119 R)
• M35: 56,620,251 km (0.053 R)
• M36: 57,331,140 km (0.098 R)
• M37: 63,043,834 km (0.113 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 537 - 19,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit