🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708

Radius: 14.6

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.72 AU - 0.74 AU

Year: 423 Days

Day: 10.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,482,708 km

• M1: 181,612 km (0.114 R)
• M2: 644,468 km (0.107 R)
• M3: 1,177,634 km (0.111 R)
• M4: 1,762,113 km (0.089 R)
• M5: 2,825,605 km (0.074 R)
• M6: 3,585,562 km (0.075 R)
• M7: 4,201,456 km (0.111 R)
• M8: 4,812,863 km (0.097 R)
• M9: 5,289,930 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 493.7

Radius: 8.9

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.02 AU - 1.36 AU

Year: 880 Days

Day: 14.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,482,708 km

• M1: 110,702 km (0.046 R)
• M2: 429,196 km (0.07 R)
• M3: 755,170 km (0.102 R)
• M4: 1,553,574 km (0.09 R)
• M5: 1,896,901 km (0.062 R)
• M6: 3,153,523 km (0.113 R)
• M7: 4,187,095 km (0.113 R)
• M8: 4,638,432 km (0.068 R)
• M9: 6,312,432 km (0.089 R)
• M10: 6,863,102 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.3

Radius: 9.9

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.27 AU - 1.49 AU

Year: 1100 Days

Day: 9.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,482,708 km

• M1: 124,914 km (0.026 R)
• M2: 487,091 km (0.067 R)
• M3: 901,178 km (0.116 R)
• M4: 1,290,282 km (0.065 R)
• M5: 1,666,969 km (0.089 R)
• M6: 2,387,133 km (0.114 R)
• M7: 4,680,917 km (0.112 R)
• M8: 5,324,487 km (0.057 R)
• M9: 5,908,218 km (0.101 R)
• M10: 6,575,874 km (0.118 R)
• M11: 7,566,511 km (0.069 R)
• M12: 8,304,627 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 579.1

Radius: 14

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.33 AU - 1.63 AU

Year: 1221 Days

Day: 11.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,482,708 km

• M1: 174,132 km (0.074 R)
• M2: 840,740 km (0.109 R)
• M3: 1,427,014 km (0.051 R)
• M4: 2,703,682 km (0.042 R)
• M5: 3,491,913 km (0.105 R)
• M6: 4,022,238 km (0.113 R)
• M7: 4,660,422 km (0.114 R)
• M8: 5,425,765 km (0.092 R)
• M9: 6,010,394 km (0.118 R)
• M10: 7,734,808 km (0.1 R)
• M11: 8,395,283 km (0.081 R)
• M12: 9,036,011 km (0.103 R)
• M13: 10,352,771 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.3

Radius: 12.5

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.83 AU - 2.71 AU

Year: 2320 Days

Day: 10.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,482,708 km

• M1: 155,731 km (0.043 R)
• M2: 715,527 km (0.088 R)
• M3: 1,212,640 km (0.086 R)
• M4: 1,618,948 km (0.101 R)
• M5: 2,293,635 km (0.076 R)
• M6: 3,006,169 km (0.109 R)
• M7: 3,536,344 km (0.057 R)
• M8: 4,246,635 km (0.114 R)
• M9: 4,983,105 km (0.079 R)
• M10: 5,852,418 km (0.06 R)
• M11: 6,468,762 km (0.118 R)
• M12: 7,922,703 km (0.084 R)
• M13: 8,516,756 km (0.097 R)
• M14: 9,006,540 km (0.03 R)
• M15: 10,701,783 km (0.067 R)
• M16: 12,392,987 km (0.058 R)
• M17: 13,022,943 km (0.089 R)
• M18: 14,165,422 km (0.087 R)
• M19: 15,041,767 km (0.108 R)
• M20: 16,150,586 km (0.111 R)
• M21: 17,004,640 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.7

Radius: 9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.22 AU - 2.98 AU

Year: 2843 Days

Day: 7.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 55,482,708 km

• M1: 112,498 km (0.069 R)
• M2: 656,286 km (0.119 R)
• M3: 1,069,326 km (0.107 R)
• M4: 1,431,053 km (0.101 R)
• M5: 1,842,597 km (0.102 R)
• M6: 2,258,629 km (0.085 R)
• M7: 2,934,213 km (0.041 R)
• M8: 3,439,255 km (0.106 R)
• M9: 3,721,546 km (0.075 R)
• M10: 4,164,805 km (0.082 R)
• M11: 5,506,398 km (0.106 R)
• M12: 5,917,643 km (0.073 R)
• M13: 6,203,076 km (0.076 R)
• M14: 6,750,454 km (0.119 R)
• M15: 7,088,845 km (0.11 R)
• M16: 7,941,702 km (0.05 R)
• M17: 8,678,172 km (0.09 R)
• M18: 9,267,588 km (0.062 R)
• M19: 9,784,449 km (0.056 R)
• M20: 10,457,490 km (0.12 R)
• M21: 11,233,155 km (0.07 R)
• M22: 12,938,421 km (0.095 R)
• M23: 14,209,255 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994

Radius: 8

Gravity: 15.53 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.31 AU - 3.77 AU

Year: 4517 Days

Day: 11.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,482,708 km

• M1: 99,483 km (0.119 R)
• M2: 390,301 km (0.053 R)
• M3: 692,189 km (0.12 R)
• M4: 968,048 km (0.08 R)
• M5: 1,265,000 km (0.106 R)
• M6: 1,712,746 km (0.094 R)
• M7: 2,003,415 km (0.102 R)
• M8: 2,392,369 km (0.061 R)
• M9: 3,060,174 km (0.1 R)
• M10: 3,469,923 km (0.101 R)
• M11: 4,603,725 km (0.079 R)
• M12: 5,752,936 km (0.071 R)
• M13: 6,674,159 km (0.112 R)
• M14: 7,471,965 km (0.071 R)
• M15: 9,339,694 km (0.098 R)
• M16: 11,839,475 km (0.042 R)
• M17: 12,287,072 km (0.101 R)
• M18: 13,643,924 km (0.105 R)
• M19: 14,080,900 km (0.06 R)
• M20: 14,925,080 km (0.043 R)
• M21: 16,102,864 km (0.094 R)
• M22: 20,641,813 km (0.104 R)
• M23: 21,363,324 km (0.081 R)
• M24: 23,009,948 km (0.092 R)
• M25: 23,395,611 km (0.102 R)
• M26: 24,498,447 km (0.047 R)
• M27: 29,710,885 km (0.066 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810

Radius: 9.6

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.34 AU - 5.18 AU

Year: 5964 Days

Day: 14.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 55,482,708 km

• M1: 119,379 km (0.095 R)
• M2: 763,099 km (0.119 R)
• M3: 1,085,781 km (0.103 R)
• M4: 1,734,288 km (0.047 R)
• M5: 2,659,102 km (0.105 R)
• M6: 3,424,594 km (0.098 R)
• M7: 3,859,176 km (0.107 R)
• M8: 4,202,653 km (0.071 R)
• M9: 5,387,917 km (0.107 R)
• M10: 6,472,651 km (0.108 R)
• M11: 6,853,078 km (0.095 R)
• M12: 9,723,712 km (0.115 R)
• M13: 11,324,110 km (0.1 R)
• M14: 11,623,755 km (0.094 R)
• M15: 12,238,901 km (0.103 R)
• M16: 17,104,721 km (0.106 R)
• M17: 17,433,388 km (0.096 R)
• M18: 19,566,653 km (0.101 R)
• M19: 22,178,034 km (0.116 R)
• M20: 27,359,057 km (0.109 R)
• M21: 31,588,638 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92.2

Radius: 4.4

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 5.95 AU - 8.01 AU

Year: 12508 Days

Day: 23.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,482,708 km

• M1: 55,800 km (0.092 R)
• M2: 1,579,754 km (0.1 R)
• M3: 1,730,099 km (0.115 R)
• M4: 2,224,221 km (0.097 R)
• M5: 3,676,816 km (0.086 R)
• M6: 4,586,372 km (0.052 R)
• M7: 8,691,935 km (0.105 R)
• M8: 26,272,827 km (0.046 R)
• M9: 27,420,841 km (0.077 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 439.4

Radius: 6

Gravity: 12.21 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 6.96 AU - 9.18 AU

Year: 15549 Days

Day: 23.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,482,708 km

• M1: 78,389 km (0.057 R)
• M2: 414,237 km (0.087 R)
• M3: 625,319 km (0.101 R)
• M4: 1,129,314 km (0.091 R)
• M5: 1,412,054 km (0.056 R)
• M6: 1,773,632 km (0.052 R)
• M7: 2,214,198 km (0.118 R)
• M8: 2,703,084 km (0.082 R)
• M9: 4,121,272 km (0.077 R)
• M10: 4,388,454 km (0.08 R)
• M11: 5,225,304 km (0.107 R)
• M12: 6,279,221 km (0.106 R)
• M13: 7,820,528 km (0.092 R)
• M14: 8,230,576 km (0.104 R)
• M15: 10,941,439 km (0.077 R)
• M16: 19,905,792 km (0.045 R)
• M17: 22,075,260 km (0.065 R)
• M18: 24,110,539 km (0.066 R)
• M19: 25,966,151 km (0.09 R)
• M20: 27,810,095 km (0.07 R)
• M21: 29,086,613 km (0.099 R)
• M22: 29,739,458 km (0.118 R)
• M23: 30,848,876 km (0.05 R)
• M24: 31,187,117 km (0.091 R)
• M25: 33,268,322 km (0.027 R)
• M26: 35,563,752 km (0.106 R)
• M27: 38,221,209 km (0.051 R)
• M28: 43,785,502 km (0.107 R)
• M29: 51,114,750 km (0.104 R)
• M30: 52,544,158 km (0.1 R)
• M31: 54,000,044 km (0.067 R)
• M32: 54,655,732 km (0.113 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 16,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit