🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.7

Radius: 14.6

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.73 AU - 0.81 AU

Year: 443 Days

Day: 5.9 Hours

Environment

Temp: -135 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,074,206 km

• M1: 181,612 km (0.109 R)
• M2: 641,775 km (0.103 R)
• M3: 1,117,646 km (0.103 R)
• M4: 1,574,368 km (0.103 R)
• M5: 2,065,348 km (0.079 R)
• M6: 2,840,564 km (0.12 R)
• M7: 3,851,696 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.4

Radius: 12.8

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.27 AU - 1.41 AU

Year: 1018 Days

Day: 12.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,074,206 km

• M1: 159,172 km (0.108 R)
• M2: 665,860 km (0.09 R)
• M3: 2,597,019 km (0.084 R)
• M4: 3,358,472 km (0.112 R)
• M5: 4,044,079 km (0.068 R)
• M6: 4,691,389 km (0.06 R)
• M7: 5,265,995 km (0.102 R)
• M8: 6,815,230 km (0.092 R)
• M9: 7,452,517 km (0.105 R)
• M10: 7,996,156 km (0.072 R)
• M11: 8,593,799 km (0.064 R)
• M12: 9,909,513 km (0.114 R)
• M13: 11,389,035 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.9

Radius: 9.3

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.31 AU - 1.49 AU

Year: 1087 Days

Day: 11.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,074,206 km

• M1: 115,789 km (0.095 R)
• M2: 406,457 km (0.083 R)
• M3: 1,396,496 km (0.072 R)
• M4: 1,742,666 km (0.093 R)
• M5: 3,000,484 km (0.066 R)
• M6: 4,034,505 km (0.118 R)
• M7: 4,869,261 km (0.033 R)
• M8: 6,633,918 km (0.067 R)
• M9: 8,116,732 km (0.101 R)
• M10: 9,275,666 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.6

Radius: 8.4

Gravity: 11.84 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.51 AU - 1.99 AU

Year: 1519 Days

Day: 10.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 66,074,206 km

• M1: 104,569 km (0.115 R)
• M2: 370,853 km (0.116 R)
• M3: 653,443 km (0.081 R)
• M4: 989,740 km (0.083 R)
• M5: 1,541,008 km (0.119 R)
• M6: 1,881,343 km (0.098 R)
• M7: 2,296,178 km (0.114 R)
• M8: 3,341,568 km (0.044 R)
• M9: 4,284,633 km (0.091 R)
• M10: 5,328,826 km (0.118 R)
• M11: 7,459,698 km (0.105 R)
• M12: 9,570,075 km (0.068 R)
• M13: 10,691,311 km (0.062 R)
• M14: 13,894,800 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 885.5

Radius: 10.4

Gravity: 8.19 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.12 AU - 2.72 AU

Year: 2470 Days

Day: 15 Hours

Environment

Temp: -203 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,074,206 km

• M1: 129,402 km (0.078 R)
• M2: 456,124 km (0.081 R)
• M3: 1,130,661 km (0.114 R)
• M4: 1,516,474 km (0.108 R)
• M5: 1,941,332 km (0.038 R)
• M6: 4,674,634 km (0.105 R)
• M7: 5,483,360 km (0.091 R)
• M8: 6,355,067 km (0.115 R)
• M9: 6,694,056 km (0.089 R)
• M10: 7,563,668 km (0.051 R)
• M11: 9,095,102 km (0.102 R)
• M12: 11,145,191 km (0.119 R)
• M13: 11,639,612 km (0.111 R)
• M14: 12,716,717 km (0.12 R)
• M15: 13,302,392 km (0.066 R)
• M16: 14,095,411 km (0.116 R)
• M17: 14,576,368 km (0.082 R)
• M18: 15,622,206 km (0.085 R)
• M19: 16,137,422 km (0.103 R)
• M20: 16,985,342 km (0.118 R)
• M21: 17,310,867 km (0.071 R)
• M22: 17,695,932 km (0.078 R)
• M23: 18,885,534 km (0.091 R)
• M24: 20,431,329 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.3

Radius: 13.6

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 4.08 AU - 4.12 AU

Year: 5446 Days

Day: 5.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,074,206 km

• M1: 169,195 km (0.108 R)
• M2: 652,247 km (0.065 R)
• M3: 1,174,493 km (0.084 R)
• M4: 1,607,878 km (0.1 R)
• M5: 2,035,728 km (0.111 R)
• M6: 2,815,731 km (0.117 R)
• M7: 3,266,470 km (0.116 R)
• M8: 4,220,306 km (0.079 R)
• M9: 5,380,138 km (0.114 R)
• M10: 6,265,009 km (0.073 R)
• M11: 6,874,172 km (0.067 R)
• M12: 8,211,577 km (0.118 R)
• M13: 9,549,430 km (0.071 R)
• M14: 10,314,175 km (0.12 R)
• M15: 10,846,444 km (0.057 R)
• M16: 12,455,070 km (0.072 R)
• M17: 13,161,621 km (0.078 R)
• M18: 15,102,204 km (0.094 R)
• M19: 17,042,638 km (0.106 R)
• M20: 17,850,916 km (0.107 R)
• M21: 20,987,983 km (0.085 R)
• M22: 22,947,715 km (0.109 R)
• M23: 25,746,542 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.2

Radius: 14.3

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.63 AU - 4.99 AU

Year: 6920 Days

Day: 12.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,074,206 km

• M1: 178,321 km (0.111 R)
• M2: 733,778 km (0.111 R)
• M3: 1,503,010 km (0.11 R)
• M4: 1,983,369 km (0.12 R)
• M5: 3,245,675 km (0.034 R)
• M6: 4,805,682 km (0.043 R)
• M7: 5,376,697 km (0.108 R)
• M8: 6,854,275 km (0.096 R)
• M9: 8,017,548 km (0.058 R)
• M10: 10,509,550 km (0.08 R)
• M11: 11,008,608 km (0.087 R)
• M12: 12,601,825 km (0.108 R)
• M13: 14,234,088 km (0.111 R)
• M14: 16,242,140 km (0.113 R)
• M15: 20,252,410 km (0.096 R)
• M16: 21,170,043 km (0.109 R)
• M17: 23,470,410 km (0.1 R)
• M18: 27,014,982 km (0.116 R)
• M19: 28,475,506 km (0.118 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.4

Radius: 14.9

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.73 AU - 5.75 AU

Year: 7869 Days

Day: 9.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,074,206 km

• M1: 185,352 km (0.091 R)
• M2: 674,387 km (0.117 R)
• M3: 1,356,105 km (0.102 R)
• M4: 2,208,364 km (0.106 R)
• M5: 2,690,069 km (0.047 R)
• M6: 3,466,183 km (0.073 R)
• M7: 4,046,772 km (0.111 R)
• M8: 4,806,131 km (0.036 R)
• M9: 5,531,232 km (0.113 R)
• M10: 6,021,015 km (0.071 R)
• M11: 7,239,639 km (0.12 R)
• M12: 7,707,133 km (0.085 R)
• M13: 8,404,259 km (0.026 R)
• M14: 8,921,419 km (0.059 R)
• M15: 11,517,540 km (0.063 R)
• M16: 12,540,640 km (0.091 R)
• M17: 13,623,579 km (0.11 R)
• M18: 15,459,294 km (0.103 R)
• M19: 16,704,098 km (0.112 R)
• M20: 17,803,493 km (0.084 R)
• M21: 19,767,563 km (0.031 R)
• M22: 26,431,849 km (0.037 R)
• M23: 29,275,555 km (0.089 R)
• M24: 32,317,628 km (0.109 R)
• M25: 36,013,294 km (0.07 R)
• M26: 37,036,992 km (0.057 R)
• M27: 40,224,324 km (0.113 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.3

Radius: 13

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 4.63 AU - 6.29 AU

Year: 8369 Days

Day: 8.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,074,206 km

• M1: 162,314 km (0.092 R)
• M2: 588,069 km (0.102 R)
• M3: 1,026,989 km (0.082 R)
• M4: 1,535,622 km (0.048 R)
• M5: 2,179,491 km (0.115 R)
• M6: 2,756,341 km (0.091 R)
• M7: 3,167,436 km (0.092 R)
• M8: 4,115,587 km (0.091 R)
• M9: 4,600,284 km (0.036 R)
• M10: 5,244,602 km (0.06 R)
• M11: 5,653,154 km (0.034 R)
• M12: 6,463,825 km (0.117 R)
• M13: 6,897,509 km (0.053 R)
• M14: 9,828,431 km (0.084 R)
• M15: 10,849,436 km (0.076 R)
• M16: 12,484,391 km (0.04 R)
• M17: 13,332,013 km (0.04 R)
• M18: 15,079,166 km (0.116 R)
• M19: 16,370,046 km (0.092 R)
• M20: 19,097,215 km (0.1 R)
• M21: 20,762,688 km (0.114 R)
• M22: 21,791,174 km (0.076 R)
• M23: 27,922,143 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.3

Radius: 3.5

Gravity: 31.7 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 9.09 AU - 11.39 AU

Year: 21496 Days

Day: 19.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,074,206 km

• M1: 43,683 km (0.096 R)
• M2: 169,494 km (0.088 R)
• M3: 441,613 km (0.114 R)
• M4: 967,749 km (0.119 R)
• M5: 1,164,320 km (0.081 R)
• M6: 1,328,878 km (0.091 R)
• M7: 3,525,573 km (0.096 R)
• M8: 4,113,044 km (0.109 R)
• M9: 4,237,808 km (0.104 R)
• M10: 4,365,266 km (0.031 R)
• M11: 5,112,358 km (0.067 R)
• M12: 7,031,100 km (0.109 R)
• M13: 7,576,534 km (0.037 R)
• M14: 9,115,297 km (0.117 R)
• M15: 11,826,908 km (0.08 R)
• M16: 13,127,812 km (0.068 R)
• M17: 13,882,533 km (0.044 R)
• M18: 22,886,679 km (0.101 R)
• M19: 35,395,455 km (0.111 R)
• M20: 47,223,560 km (0.094 R)
• M21: 50,296,151 km (0.054 R)
• M22: 58,280,937 km (0.108 R)
• M23: 64,502,114 km (0.116 R)
• M24: 65,481,681 km (0.104 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: 543 - 19,882 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit