🌌 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 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.5

Radius: 9.5

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.64 AU - 0.72 AU

Year: 387 Days

Day: 7.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 151.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,459,568 km

• M1: 118,332 km (0.062 R)
• M2: 480,808 km (0.092 R)
• M3: 883,824 km (0.11 R)
• M4: 1,192,893 km (0.091 R)
• M5: 2,054,428 km (0.045 R)
• M6: 2,417,651 km (0.106 R)
• M7: 2,760,380 km (0.117 R)
• M8: 3,523,179 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.9

Radius: 10.8

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.78 AU - 0.9 AU

Year: 531 Days

Day: 5.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,459,568 km

• M1: 134,339 km (0.112 R)
• M2: 494,571 km (0.101 R)
• M3: 850,015 km (0.069 R)
• M4: 1,334,114 km (0.075 R)
• M5: 1,739,674 km (0.092 R)
• M6: 2,292,438 km (0.075 R)
• M7: 2,699,344 km (0.076 R)
• M8: 3,050,151 km (0.099 R)
• M9: 3,994,562 km (0.101 R)
• M10: 4,557,499 km (0.074 R)
• M11: 5,238,917 km (0.096 R)
• M12: 5,771,336 km (0.114 R)
• M13: 6,453,652 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.2

Radius: 12.7

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1 AU - 1.42 AU

Year: 919 Days

Day: 11 Hours

Environment

Temp: -182 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,459,568 km

• M1: 157,975 km (0.098 R)
• M2: 724,203 km (0.119 R)
• M3: 1,228,797 km (0.066 R)
• M4: 1,684,771 km (0.086 R)
• M5: 2,317,421 km (0.063 R)
• M6: 2,779,528 km (0.119 R)
• M7: 3,625,504 km (0.082 R)
• M8: 4,156,876 km (0.104 R)
• M9: 4,952,288 km (0.118 R)
• M10: 5,707,009 km (0.101 R)
• M11: 6,429,118 km (0.095 R)
• M12: 7,188,028 km (0.071 R)
• M13: 7,710,274 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.4

Radius: 11.3

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.14 AU - 1.48 AU

Year: 1035 Days

Day: 7.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,459,568 km

• M1: 140,472 km (0.116 R)
• M2: 509,830 km (0.079 R)
• M3: 1,153,699 km (0.081 R)
• M4: 1,864,737 km (0.043 R)
• M5: 2,283,761 km (0.113 R)
• M6: 2,650,425 km (0.118 R)
• M7: 3,031,750 km (0.104 R)
• M8: 3,701,650 km (0.05 R)
• M9: 4,338,488 km (0.092 R)
• M10: 4,819,894 km (0.11 R)
• M11: 5,355,155 km (0.067 R)
• M12: 5,949,807 km (0.09 R)
• M13: 6,460,833 km (0.097 R)
• M14: 7,316,533 km (0.052 R)
• M15: 8,296,100 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.6

Radius: 9.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.61 AU - 2.55 AU

Year: 2071 Days

Day: 14 Hours

Environment

Temp: -202 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,459,568 km

• M1: 119,379 km (0.059 R)
• M2: 440,416 km (0.102 R)
• M3: 931,097 km (0.083 R)
• M4: 1,402,929 km (0.106 R)
• M5: 1,854,565 km (0.114 R)
• M6: 2,238,134 km (0.096 R)
• M7: 2,845,501 km (0.106 R)
• M8: 3,686,391 km (0.069 R)
• M9: 4,262,043 km (0.112 R)
• M10: 4,779,951 km (0.115 R)
• M11: 6,260,072 km (0.081 R)
• M12: 6,831,686 km (0.053 R)
• M13: 9,169,601 km (0.053 R)
• M14: 9,907,269 km (0.111 R)
• M15: 11,605,504 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.9

Radius: 8.1

Gravity: 11.61 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.94 AU - 2.4 AU

Year: 2206 Days

Day: 5.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 77,459,568 km

• M1: 101,128 km (0.109 R)
• M2: 379,081 km (0.094 R)
• M3: 725,550 km (0.048 R)
• M4: 1,113,906 km (0.113 R)
• M5: 1,485,058 km (0.097 R)
• M6: 1,766,003 km (0.082 R)
• M7: 2,132,667 km (0.089 R)
• M8: 2,464,924 km (0.026 R)
• M9: 3,233,857 km (0.087 R)
• M10: 4,275,058 km (0.109 R)
• M11: 4,805,981 km (0.083 R)
• M12: 5,214,982 km (0.091 R)
• M13: 5,476,180 km (0.025 R)
• M14: 6,582,456 km (0.105 R)
• M15: 7,678,260 km (0.082 R)
• M16: 10,561,909 km (0.115 R)
• M17: 12,685,750 km (0.077 R)
• M18: 13,335,154 km (0.031 R)
• M19: 15,367,890 km (0.106 R)
• M20: 15,857,225 km (0.099 R)
• M21: 16,205,788 km (0.117 R)
• M22: 16,610,600 km (0.098 R)
• M23: 17,492,928 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.9

Radius: 9.1

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.68 AU - 2.78 AU

Year: 2299 Days

Day: 10.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,459,568 km

• M1: 113,096 km (0.068 R)
• M2: 398,529 km (0.111 R)
• M3: 733,329 km (0.071 R)
• M4: 1,076,357 km (0.049 R)
• M5: 1,647,821 km (0.065 R)
• M6: 2,316,224 km (0.114 R)
• M7: 2,779,828 km (0.102 R)
• M8: 3,155,019 km (0.083 R)
• M9: 3,546,218 km (0.113 R)
• M10: 3,912,433 km (0.05 R)
• M11: 4,324,126 km (0.107 R)
• M12: 4,678,225 km (0.101 R)
• M13: 5,257,468 km (0.12 R)
• M14: 8,187,940 km (0.096 R)
• M15: 10,508,652 km (0.042 R)
• M16: 13,063,933 km (0.112 R)
• M17: 13,453,636 km (0.098 R)
• M18: 15,908,686 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.4

Radius: 14.9

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 3.26 AU - 3.36 AU

Year: 4157 Days

Day: 7.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,459,568 km

• M1: 190,139 km (0.062 R)
• M2: 718,369 km (0.086 R)
• M3: 1,671,756 km (0.034 R)
• M4: 3,473,214 km (0.042 R)
• M5: 4,143,263 km (0.085 R)
• M6: 4,670,446 km (0.078 R)
• M7: 5,188,503 km (0.079 R)
• M8: 6,249,152 km (0.106 R)
• M9: 6,782,917 km (0.116 R)
• M10: 8,345,168 km (0.043 R)
• M11: 8,916,033 km (0.105 R)
• M12: 9,967,557 km (0.069 R)
• M13: 10,436,695 km (0.103 R)
• M14: 12,414,379 km (0.058 R)
• M15: 13,312,415 km (0.081 R)
• M16: 13,777,515 km (0.106 R)
• M17: 14,631,270 km (0.11 R)
• M18: 16,681,210 km (0.114 R)
• M19: 18,851,875 km (0.065 R)
• M20: 20,996,061 km (0.114 R)
• M21: 24,433,521 km (0.119 R)
• M22: 27,976,896 km (0.115 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.9

Radius: 11.9

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.05 AU - 4.23 AU

Year: 4794 Days

Day: 10.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,459,568 km

• M1: 155,283 km (0.08 R)
• M2: 696,528 km (0.084 R)
• M3: 4,172,285 km (0.085 R)
• M4: 5,494,730 km (0.089 R)
• M5: 7,365,750 km (0.094 R)
• M6: 9,149,855 km (0.083 R)
• M7: 9,594,160 km (0.063 R)
• M8: 10,378,951 km (0.119 R)
• M9: 12,239,649 km (0.114 R)
• M10: 13,597,698 km (0.04 R)
• M11: 14,450,107 km (0.041 R)
• M12: 14,912,963 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.3

Radius: 3.1

Gravity: 78.49 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 9.1 AU - 9.5 AU

Year: 19577 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 77,459,568 km

• M1: 42,187 km (0.066 R)
• M2: 179,069 km (0.078 R)
• M3: 279,449 km (0.035 R)
• M4: 885,619 km (0.086 R)
• M5: 1,095,505 km (0.034 R)
• M6: 1,248,245 km (0.095 R)
• M7: 1,368,073 km (0.106 R)
• M8: 1,811,929 km (0.115 R)
• M9: 3,135,571 km (0.047 R)
• M10: 4,595,796 km (0.111 R)
• M11: 4,846,373 km (0.075 R)
• M12: 5,105,775 km (0.055 R)
• M13: 5,898,345 km (0.077 R)
• M14: 6,237,184 km (0.046 R)
• M15: 6,953,309 km (0.034 R)
• M16: 7,093,482 km (0.111 R)
• M17: 7,822,772 km (0.112 R)
• M18: 8,547,274 km (0.106 R)
• M19: 11,695,711 km (0.108 R)
• M20: 12,297,394 km (0.053 R)
• M21: 13,489,838 km (0.048 R)
• M22: 14,376,355 km (0.109 R)
• M23: 17,098,139 km (0.1 R)
• M24: 20,813,402 km (0.082 R)
• M25: 23,323,954 km (0.086 R)
• M26: 26,822,300 km (0.108 R)
• M27: 30,654,399 km (0.109 R)
• M28: 30,779,762 km (0.028 R)
• M29: 35,383,786 km (0.119 R)
• M30: 36,076,873 km (0.111 R)
• M31: 36,496,944 km (0.115 R)
• M32: 40,275,636 km (0.115 R)
• M33: 43,196,236 km (0.065 R)
• M34: 53,159,304 km (0.093 R)
• M35: 57,044,810 km (0.091 R)
• M36: 59,347,719 km (0.087 R)
• M37: 59,737,571 km (0.028 R)
• M38: 60,325,341 km (0.082 R)
• M39: 63,119,680 km (0.045 R)
• M40: 70,045,014 km (0.028 R)
• M41: 70,480,344 km (0.084 R)
• M42: 72,683,771 km (0.105 R)
• M43: 75,845,073 km (0.118 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 13,837 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit