🌌 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: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.58 AU - 0.72 AU

Year: 333 Days

Day: 32.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 19.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 361.8

Radius: 9.5

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.82 AU - 1.32 AU

Year: 704 Days

Day: 12.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,472,350 km

• M1: 118,930 km (0.117 R)
• M2: 436,078 km (0.087 R)
• M3: 737,218 km (0.042 R)
• M4: 1,051,374 km (0.096 R)
• M5: 1,396,795 km (0.092 R)
• M6: 1,701,676 km (0.087 R)
• M7: 2,017,028 km (0.085 R)
• M8: 2,362,001 km (0.109 R)
• M9: 2,920,749 km (0.053 R)
• M10: 4,087,463 km (0.105 R)
• M11: 4,706,199 km (0.115 R)
• M12: 5,185,361 km (0.032 R)
• M13: 5,626,825 km (0.072 R)
• M14: 6,260,372 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.9

Radius: 12.6

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.23 AU - 1.51 AU

Year: 1020 Days

Day: 9.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,472,350 km

• M1: 156,629 km (0.094 R)
• M2: 643,869 km (0.077 R)
• M3: 1,079,947 km (0.078 R)
• M4: 1,585,588 km (0.107 R)
• M5: 2,421,242 km (0.115 R)
• M6: 2,814,534 km (0.108 R)
• M7: 4,600,434 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.6

Radius: 8

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 3.18 AU - 3.62 AU

Year: 3986 Days

Day: 13.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,472,350 km

• M1: 100,829 km (0.101 R)
• M2: 380,727 km (0.03 R)
• M3: 708,047 km (0.089 R)
• M4: 1,350,270 km (0.099 R)
• M5: 1,955,244 km (0.085 R)
• M6: 2,471,806 km (0.099 R)
• M7: 3,923,354 km (0.062 R)
• M8: 4,720,860 km (0.039 R)
• M9: 5,068,675 km (0.089 R)
• M10: 5,433,395 km (0.085 R)
• M11: 5,704,466 km (0.087 R)
• M12: 5,956,239 km (0.117 R)
• M13: 6,943,735 km (0.107 R)
• M14: 7,394,174 km (0.066 R)
• M15: 7,660,309 km (0.067 R)
• M16: 8,533,212 km (0.084 R)
• M17: 14,066,538 km (0.116 R)
• M18: 16,304,373 km (0.078 R)
• M19: 17,862,285 km (0.07 R)
• M20: 18,402,932 km (0.074 R)
• M21: 19,580,117 km (0.088 R)
• M22: 21,946,905 km (0.085 R)
• M23: 24,351,392 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.9

Radius: 14.2

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.93 AU - 4.01 AU

Year: 5029 Days

Day: 10.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 140.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 41,472,350 km

• M1: 207,941 km (0.093 R)
• M2: 675,883 km (0.044 R)
• M3: 1,539,960 km (0.117 R)
• M4: 2,632,773 km (0.104 R)
• M5: 3,629,843 km (0.102 R)
• M6: 4,170,639 km (0.029 R)
• M7: 5,362,036 km (0.101 R)
• M8: 7,628,295 km (0.1 R)
• M9: 8,783,938 km (0.061 R)
• M10: 10,950,564 km (0.117 R)
• M11: 11,761,684 km (0.085 R)
• M12: 12,954,278 km (0.103 R)
• M13: 14,490,199 km (0.115 R)
• M14: 15,137,509 km (0.112 R)
• M15: 15,579,571 km (0.114 R)
• M16: 17,677,382 km (0.072 R)
• M17: 19,564,410 km (0.076 R)
• M18: 20,624,011 km (0.109 R)
• M19: 21,443,658 km (0.087 R)
• M20: 26,584,589 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.1

Radius: 9.8

Gravity: 7.33 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 4.77 AU - 7.25 AU

Year: 9368 Days

Day: 12.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 41,472,350 km

• M1: 121,922 km (0.115 R)
• M2: 464,352 km (0.055 R)
• M3: 962,214 km (0.119 R)
• M4: 1,295,667 km (0.028 R)
• M5: 2,136,557 km (0.095 R)
• M6: 4,501,699 km (0.114 R)
• M7: 5,523,153 km (0.086 R)
• M8: 5,861,245 km (0.077 R)
• M9: 7,435,912 km (0.048 R)
• M10: 8,409,046 km (0.087 R)
• M11: 9,705,611 km (0.107 R)
• M12: 11,345,203 km (0.101 R)
• M13: 11,949,280 km (0.094 R)
• M14: 13,583,786 km (0.112 R)
• M15: 15,628,639 km (0.072 R)
• M16: 17,291,270 km (0.112 R)
• M17: 18,840,057 km (0.119 R)
• M18: 19,765,469 km (0.09 R)
• M19: 23,683,587 km (0.063 R)
• M20: 24,943,949 km (0.053 R)
• M21: 27,893,121 km (0.097 R)
• M22: 28,489,568 km (0.102 R)
• M23: 29,502,645 km (0.06 R)
• M24: 30,225,951 km (0.102 R)
• M25: 31,815,578 km (0.053 R)
• M26: 39,600,800 km (0.102 R)
• M27: 40,480,885 km (0.03 R)
• M28: 41,890,097 km (0.114 R)
• M29: 42,410,548 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.4

Radius: 3.6

Gravity: 21.56 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 4.84 AU - 7.76 AU

Year: 10054 Days

Day: 22.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 41,472,350 km

• M1: 44,879 km (0.062 R)
• M2: 219,759 km (0.103 R)
• M3: 450,589 km (0.109 R)
• M4: 715,377 km (0.11 R)
• M5: 895,942 km (0.087 R)
• M6: 1,482,664 km (0.055 R)
• M7: 2,046,648 km (0.055 R)
• M8: 3,205,882 km (0.103 R)
• M9: 6,471,305 km (0.095 R)
• M10: 6,713,055 km (0.108 R)
• M11: 6,853,976 km (0.073 R)
• M12: 9,082,087 km (0.045 R)
• M13: 9,875,255 km (0.087 R)
• M14: 10,713,452 km (0.118 R)
• M15: 12,530,018 km (0.08 R)
• M16: 13,399,481 km (0.091 R)
• M17: 13,679,229 km (0.108 R)
• M18: 13,962,867 km (0.109 R)
• M19: 15,501,481 km (0.059 R)
• M20: 16,888,702 km (0.098 R)
• M21: 17,280,798 km (0.115 R)
• M22: 17,679,028 km (0.062 R)
• M23: 18,425,072 km (0.108 R)
• M24: 19,262,521 km (0.09 R)
• M25: 26,106,474 km (0.091 R)
• M26: 29,923,613 km (0.109 R)
• M27: 30,305,537 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 248.5

Radius: 6.9

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 9.07 AU - 9.57 AU

Year: 18091 Days

Day: 15.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,472,350 km

• M1: 89,609 km (0.098 R)
• M2: 694,284 km (0.058 R)
• M3: 986,748 km (0.102 R)
• M4: 1,624,782 km (0.032 R)
• M5: 2,059,813 km (0.104 R)
• M6: 3,353,087 km (0.067 R)
• M7: 3,603,663 km (0.069 R)
• M8: 4,314,403 km (0.067 R)
• M9: 5,482,014 km (0.108 R)
• M10: 6,767,808 km (0.111 R)
• M11: 10,759,079 km (0.112 R)
• M12: 11,362,108 km (0.1 R)
• M13: 11,987,427 km (0.095 R)
• M14: 12,337,935 km (0.078 R)
• M15: 15,257,188 km (0.073 R)
• M16: 17,614,850 km (0.116 R)
• M17: 18,451,850 km (0.041 R)
• M18: 21,121,873 km (0.088 R)
• M19: 27,414,707 km (0.073 R)
• M20: 28,125,746 km (0.114 R)
• M21: 32,879,966 km (0.12 R)
• M22: 43,391,760 km (0.112 R)
• M23: 44,635,517 km (0.095 R)
• M24: 49,999,348 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 867.2

Radius: 5.4

Gravity: 29.74 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 9.38 AU - 9.62 AU

Year: 18617 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 41,472,350 km

• M1: 459,265 km (0.091 R)
• M2: 723,007 km (0.04 R)
• M3: 1,046,288 km (0.111 R)
• M4: 1,220,270 km (0.084 R)
• M5: 1,542,803 km (0.076 R)
• M6: 2,313,681 km (0.117 R)
• M7: 2,884,845 km (0.115 R)
• M8: 3,486,827 km (0.103 R)
• M9: 3,694,918 km (0.06 R)
• M10: 4,369,455 km (0.086 R)
• M11: 5,085,131 km (0.103 R)
• M12: 5,876,055 km (0.085 R)
• M13: 6,700,638 km (0.041 R)
• M14: 7,649,238 km (0.116 R)
• M15: 8,576,745 km (0.099 R)
• M16: 10,164,876 km (0.106 R)
• M17: 10,964,926 km (0.12 R)
• M18: 11,872,685 km (0.072 R)
• M19: 13,254,820 km (0.099 R)
• M20: 13,543,544 km (0.099 R)
• M21: 14,133,708 km (0.108 R)
• M22: 15,444,335 km (0.061 R)
• M23: 15,764,175 km (0.109 R)
• M24: 17,516,115 km (0.06 R)
• M25: 17,951,595 km (0.071 R)
• M26: 21,008,627 km (0.088 R)
• M27: 25,824,332 km (0.114 R)
• M28: 26,960,528 km (0.109 R)
• M29: 30,819,854 km (0.115 R)
• M30: 31,199,534 km (0.052 R)
• M31: 33,410,141 km (0.117 R)
• M32: 35,862,200 km (0.109 R)
• M33: 38,431,543 km (0.113 R)
• M34: 39,314,620 km (0.111 R)
• M35: 39,910,767 km (0.025 R)
• M36: 43,456,237 km (0.075 R)
• M37: 45,713,968 km (0.12 R)
• M38: 51,520,011 km (0.112 R)
• M39: 56,466,464 km (0.082 R)
• M40: 59,934,293 km (0.115 R)
• M41: 67,716,075 km (0.075 R)
• M42: 76,838,254 km (0.102 R)
• M43: 78,003,771 km (0.054 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.7

Radius: 6.3

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 10.03 AU - 12.41 AU

Year: 23896 Days

Day: 22.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,472,350 km

• M1: 89,759 km (0.03 R)
• M2: 450,888 km (0.096 R)
• M3: 977,323 km (0.088 R)
• M4: 2,727,618 km (0.049 R)
• M5: 6,488,359 km (0.086 R)
• M6: 7,744,233 km (0.062 R)
• M7: 8,536,653 km (0.099 R)
• M8: 9,290,327 km (0.105 R)
• M9: 15,464,231 km (0.117 R)
• M10: 21,914,293 km (0.095 R)
• M11: 33,052,752 km (0.07 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 14,779 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit