🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.4

Radius: 11.6

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.48 AU - 0.68 AU

Year: 305 Days

Day: 5.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,366,018 km

• M1: 144,212 km (0.107 R)
• M2: 542,143 km (0.059 R)
• M3: 919,429 km (0.06 R)
• M4: 1,309,580 km (0.097 R)
• M5: 1,922,482 km (0.053 R)
• M6: 2,561,564 km (0.077 R)
• M7: 2,988,816 km (0.09 R)
• M8: 3,389,888 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.5

Radius: 12.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.01 AU - 1.29 AU

Year: 851 Days

Day: 12.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,366,018 km

• M1: 155,582 km (0.115 R)
• M2: 682,465 km (0.119 R)
• M3: 1,155,344 km (0.034 R)
• M4: 2,096,315 km (0.118 R)
• M5: 2,525,511 km (0.12 R)
• M6: 3,063,316 km (0.057 R)
• M7: 3,691,178 km (0.113 R)
• M8: 4,135,783 km (0.078 R)
• M9: 4,566,475 km (0.085 R)
• M10: 5,241,760 km (0.09 R)
• M11: 6,389,175 km (0.089 R)
• M12: 6,814,033 km (0.105 R)
• M13: 7,463,737 km (0.043 R)
• M14: 8,056,743 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.2

Radius: 9.9

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.4 AU - 1.62 AU

Year: 1281 Days

Day: 7.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,366,018 km

• M1: 123,119 km (0.074 R)
• M2: 486,193 km (0.096 R)
• M3: 823,985 km (0.109 R)
• M4: 1,209,948 km (0.104 R)
• M5: 1,542,055 km (0.092 R)
• M6: 2,163,036 km (0.061 R)
• M7: 2,494,544 km (0.115 R)
• M8: 2,846,548 km (0.113 R)
• M9: 3,172,372 km (0.1 R)
• M10: 4,852,805 km (0.057 R)
• M11: 5,447,606 km (0.106 R)
• M12: 5,818,460 km (0.103 R)
• M13: 6,708,717 km (0.104 R)
• M14: 7,135,370 km (0.095 R)
• M15: 7,932,577 km (0.111 R)
• M16: 8,525,134 km (0.08 R)
• M17: 9,238,117 km (0.099 R)
• M18: 9,703,516 km (0.081 R)
• M19: 10,647,928 km (0.054 R)
• M20: 11,474,905 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474

Radius: 11.2

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.81 AU - 2.63 AU

Year: 2283 Days

Day: 7.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,366,018 km

• M1: 139,276 km (0.112 R)
• M2: 688,150 km (0.056 R)
• M3: 1,084,884 km (0.1 R)
• M4: 1,919,191 km (0.099 R)
• M5: 3,000,784 km (0.025 R)
• M6: 3,513,156 km (0.091 R)
• M7: 6,949,120 km (0.12 R)
• M8: 7,762,185 km (0.069 R)
• M9: 8,146,801 km (0.034 R)
• M10: 8,575,100 km (0.03 R)
• M11: 10,089,479 km (0.086 R)
• M12: 10,764,464 km (0.056 R)
• M13: 11,280,876 km (0.108 R)
• M14: 12,165,149 km (0.106 R)
• M15: 15,096,071 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.2

Radius: 12.7

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 2.4 AU - 3.76 AU

Year: 3731 Days

Day: 9.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,366,018 km

• M1: 157,975 km (0.057 R)
• M2: 713,432 km (0.057 R)
• M3: 2,165,579 km (0.113 R)
• M4: 3,498,197 km (0.111 R)
• M5: 4,013,711 km (0.077 R)
• M6: 9,890,813 km (0.117 R)
• M7: 11,574,986 km (0.097 R)
• M8: 12,290,961 km (0.075 R)
• M9: 15,454,058 km (0.118 R)
• M10: 15,858,870 km (0.099 R)
• M11: 19,008,653 km (0.116 R)
• M12: 19,414,961 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.7

Radius: 10.1

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.12 AU - 4.6 AU

Year: 5235 Days

Day: 13.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,366,018 km

• M1: 125,812 km (0.059 R)
• M2: 518,506 km (0.032 R)
• M3: 895,044 km (0.101 R)
• M4: 1,371,663 km (0.117 R)
• M5: 1,865,186 km (0.068 R)
• M6: 2,739,436 km (0.074 R)
• M7: 3,347,552 km (0.117 R)
• M8: 6,434,055 km (0.08 R)
• M9: 7,892,335 km (0.102 R)
• M10: 9,005,493 km (0.101 R)
• M11: 9,927,614 km (0.082 R)
• M12: 14,200,279 km (0.11 R)
• M13: 15,955,361 km (0.115 R)
• M14: 16,885,112 km (0.109 R)
• M15: 17,605,874 km (0.114 R)
• M16: 25,901,675 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.7

Radius: 13

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.36 AU - 4.42 AU

Year: 6349 Days

Day: 6.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 73,366,018 km

• M1: 162,463 km (0.076 R)
• M2: 572,661 km (0.081 R)
• M3: 982,260 km (0.117 R)
• M4: 1,686,417 km (0.103 R)
• M5: 2,996,745 km (0.072 R)
• M6: 4,048,418 km (0.106 R)
• M7: 4,784,888 km (0.085 R)
• M8: 6,842,756 km (0.077 R)
• M9: 7,322,666 km (0.103 R)
• M10: 12,580,134 km (0.069 R)
• M11: 14,929,269 km (0.092 R)
• M12: 17,117,587 km (0.062 R)
• M13: 17,668,705 km (0.056 R)
• M14: 18,981,127 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 168.2

Radius: 6.1

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 4.74 AU - 7.42 AU

Year: 10348 Days

Day: 23 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,366,018 km

• M1: 75,846 km (0.104 R)
• M2: 448,494 km (0.074 R)
• M3: 755,469 km (0.114 R)
• M4: 979,567 km (0.09 R)
• M5: 1,206,956 km (0.104 R)
• M6: 1,851,274 km (0.089 R)
• M7: 3,421,453 km (0.111 R)
• M8: 3,724,089 km (0.118 R)
• M9: 4,259,949 km (0.076 R)
• M10: 4,819,445 km (0.071 R)
• M11: 6,659,499 km (0.056 R)
• M12: 7,626,499 km (0.099 R)
• M13: 8,449,587 km (0.09 R)
• M14: 9,003,249 km (0.093 R)
• M15: 10,008,247 km (0.072 R)
• M16: 10,537,824 km (0.098 R)
• M17: 21,670,748 km (0.063 R)
• M18: 22,705,965 km (0.089 R)
• M19: 26,422,425 km (0.098 R)
• M20: 29,888,757 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 476.8

Radius: 4

Gravity: 29.8 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 6.35 AU - 8.21 AU

Year: 13558 Days

Day: 20.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 157.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 73,366,018 km

• M1: 49,816 km (0.095 R)
• M2: 342,878 km (0.091 R)
• M3: 698,921 km (0.094 R)
• M4: 963,560 km (0.111 R)
• M5: 1,265,897 km (0.105 R)
• M6: 1,986,809 km (0.037 R)
• M7: 2,203,128 km (0.038 R)
• M8: 3,016,491 km (0.108 R)
• M9: 3,984,539 km (0.111 R)
• M10: 4,448,143 km (0.098 R)
• M11: 5,980,773 km (0.087 R)
• M12: 7,444,439 km (0.072 R)
• M13: 9,033,767 km (0.118 R)
• M14: 9,627,072 km (0.104 R)
• M15: 9,984,910 km (0.114 R)
• M16: 10,565,050 km (0.097 R)
• M17: 11,391,878 km (0.084 R)
• M18: 13,424,165 km (0.111 R)
• M19: 14,392,961 km (0.041 R)
• M20: 14,928,372 km (0.038 R)
• M21: 15,407,533 km (0.076 R)
• M22: 16,541,186 km (0.095 R)
• M23: 19,861,361 km (0.11 R)
• M24: 20,946,245 km (0.09 R)
• M25: 21,373,945 km (0.11 R)
• M26: 23,599,662 km (0.117 R)
• M27: 25,294,606 km (0.077 R)
• M28: 26,073,263 km (0.07 R)
• M29: 26,270,433 km (0.069 R)
• M30: 29,135,980 km (0.098 R)
• M31: 30,099,540 km (0.115 R)
• M32: 32,316,282 km (0.109 R)
• M33: 33,002,038 km (0.083 R)
• M34: 36,699,948 km (0.111 R)
• M35: 38,202,359 km (0.114 R)
• M36: 39,875,911 km (0.073 R)
• M37: 47,792,181 km (0.086 R)
• M38: 48,383,991 km (0.065 R)
• M39: 48,681,690 km (0.082 R)
• M40: 49,733,513 km (0.101 R)
• M41: 51,882,187 km (0.073 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 544.4

Radius: 6

Gravity: 15.12 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 8.62 AU - 11.02 AU

Year: 21241 Days

Day: 19.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 73,366,018 km

• M1: 77,791 km (0.063 R)
• M2: 374,892 km (0.079 R)
• M3: 569,369 km (0.096 R)
• M4: 909,405 km (0.027 R)
• M5: 1,126,322 km (0.107 R)
• M6: 1,683,574 km (0.081 R)
• M7: 2,258,030 km (0.114 R)
• M8: 9,072,064 km (0.112 R)
• M9: 9,911,607 km (0.056 R)
• M10: 11,424,041 km (0.058 R)
• M11: 11,615,377 km (0.118 R)
• M12: 14,523,111 km (0.061 R)
• M13: 21,725,500 km (0.116 R)
• M14: 23,838,869 km (0.073 R)
• M15: 29,533,911 km (0.092 R)
• M16: 40,485,223 km (0.08 R)
• M17: 40,930,277 km (0.099 R)
• M18: 52,794,884 km (0.032 R)
• M19: 60,561,556 km (0.113 R)
• M20: 66,759,097 km (0.098 R)
• M21: 67,172,735 km (0.042 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 221 - 13,607 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit