🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.9

Radius: 12.3

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.59 AU - 0.61 AU

Year: 310 Days

Day: 7.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 58,548,973 km

• M1: 153,039 km (0.108 R)
• M2: 576,101 km (0.046 R)
• M3: 1,235,080 km (0.093 R)
• M4: 1,872,965 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.1

Radius: 9.8

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.78 AU - 0.96 AU

Year: 541 Days

Day: 13.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,548,973 km

• M1: 121,922 km (0.069 R)
• M2: 427,850 km (0.107 R)
• M3: 852,857 km (0.115 R)
• M4: 1,205,609 km (0.06 R)
• M5: 1,715,888 km (0.091 R)
• M6: 2,690,817 km (0.104 R)
• M7: 3,057,182 km (0.094 R)
• M8: 3,838,532 km (0.046 R)
• M9: 4,656,533 km (0.06 R)
• M10: 4,979,964 km (0.057 R)
• M11: 5,302,048 km (0.084 R)
• M12: 6,205,020 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.2

Radius: 13.5

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.24 AU - 2.04 AU

Year: 1401 Days

Day: 7.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,548,973 km

• M1: 167,998 km (0.063 R)
• M2: 818,899 km (0.099 R)
• M3: 1,372,710 km (0.104 R)
• M4: 1,819,559 km (0.093 R)
• M5: 2,342,104 km (0.092 R)
• M6: 2,978,194 km (0.103 R)
• M7: 3,525,423 km (0.089 R)
• M8: 4,156,577 km (0.11 R)
• M9: 4,824,083 km (0.1 R)
• M10: 5,294,568 km (0.108 R)
• M11: 8,263,038 km (0.097 R)
• M12: 9,055,907 km (0.097 R)
• M13: 9,837,107 km (0.112 R)
• M14: 10,532,737 km (0.091 R)
• M15: 11,328,897 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.3

Radius: 11.1

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.06 AU - 3.28 AU

Year: 2909 Days

Day: 8.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 58,548,973 km

• M1: 141,819 km (0.105 R)
• M2: 530,175 km (0.101 R)
• M3: 982,559 km (0.112 R)
• M4: 1,392,607 km (0.065 R)
• M5: 2,082,702 km (0.067 R)
• M6: 2,519,677 km (0.095 R)
• M7: 4,120,524 km (0.086 R)
• M8: 4,979,664 km (0.099 R)
• M9: 5,407,963 km (0.111 R)
• M10: 6,096,562 km (0.111 R)
• M11: 8,161,611 km (0.099 R)
• M12: 8,516,457 km (0.115 R)
• M13: 9,225,401 km (0.107 R)
• M14: 10,866,939 km (0.075 R)
• M15: 11,442,741 km (0.041 R)
• M16: 13,415,339 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.6

Radius: 14.7

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.28 AU - 5.42 AU

Year: 8252 Days

Day: 12.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 58,548,973 km

• M1: 182,809 km (0.109 R)
• M2: 818,001 km (0.095 R)
• M3: 1,371,513 km (0.076 R)
• M4: 2,094,969 km (0.116 R)
• M5: 2,731,956 km (0.113 R)
• M6: 4,715,474 km (0.054 R)
• M7: 6,861,755 km (0.059 R)
• M8: 7,367,246 km (0.101 R)
• M9: 9,266,691 km (0.111 R)
• M10: 11,474,306 km (0.093 R)
• M11: 12,414,828 km (0.065 R)
• M12: 12,874,991 km (0.116 R)
• M13: 14,639,348 km (0.075 R)
• M14: 17,259,854 km (0.113 R)
• M15: 17,979,270 km (0.069 R)
• M16: 22,895,206 km (0.098 R)
• M17: 23,852,333 km (0.057 R)
• M18: 26,693,496 km (0.12 R)
• M19: 27,171,910 km (0.05 R)
• M20: 29,345,866 km (0.062 R)
• M21: 30,683,720 km (0.094 R)
• M22: 32,169,676 km (0.105 R)
• M23: 33,481,051 km (0.057 R)
• M24: 34,149,903 km (0.049 R)
• M25: 37,033,551 km (0.113 R)
• M26: 37,749,078 km (0.094 R)
• M27: 42,757,315 km (0.059 R)
• M28: 43,809,587 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268

Radius: 11.1

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 4.44 AU - 7.02 AU

Year: 9147 Days

Day: 6.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 58,548,973 km

• M1: 138,079 km (0.099 R)
• M2: 538,253 km (0.109 R)
• M3: 1,277,715 km (0.117 R)
• M4: 1,711,549 km (0.091 R)
• M5: 2,150,021 km (0.115 R)
• M6: 2,845,800 km (0.106 R)
• M7: 3,216,354 km (0.092 R)
• M8: 3,575,240 km (0.104 R)
• M9: 3,937,566 km (0.041 R)
• M10: 6,622,997 km (0.117 R)
• M11: 7,067,303 km (0.042 R)
• M12: 7,604,658 km (0.077 R)
• M13: 9,047,530 km (0.072 R)
• M14: 10,527,202 km (0.078 R)
• M15: 11,763,180 km (0.088 R)
• M16: 12,111,892 km (0.065 R)
• M17: 13,795,018 km (0.043 R)
• M18: 15,332,136 km (0.105 R)
• M19: 16,604,466 km (0.11 R)
• M20: 17,490,983 km (0.079 R)
• M21: 19,915,217 km (0.073 R)
• M22: 21,354,797 km (0.098 R)
• M23: 23,563,759 km (0.077 R)
• M24: 25,586,771 km (0.091 R)
• M25: 26,512,483 km (0.079 R)
• M26: 27,373,418 km (0.094 R)
• M27: 27,723,029 km (0.06 R)
• M28: 29,607,214 km (0.075 R)
• M29: 31,193,998 km (0.113 R)
• M30: 31,575,323 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871.9

Radius: 14.9

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.6 AU - 5.86 AU

Year: 9147 Days

Day: 14.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 58,548,973 km

• M1: 185,352 km (0.119 R)
• M2: 704,456 km (0.1 R)
• M3: 1,652,159 km (0.092 R)
• M4: 2,422,588 km (0.083 R)
• M5: 4,453,379 km (0.069 R)
• M6: 5,611,865 km (0.038 R)
• M7: 6,845,748 km (0.082 R)
• M8: 7,322,367 km (0.066 R)
• M9: 9,748,695 km (0.054 R)
• M10: 11,806,713 km (0.044 R)
• M11: 12,729,881 km (0.102 R)
• M12: 14,332,224 km (0.054 R)
• M13: 16,343,867 km (0.084 R)
• M14: 17,860,041 km (0.06 R)
• M15: 21,590,862 km (0.072 R)
• M16: 31,092,870 km (0.085 R)
• M17: 32,074,681 km (0.053 R)
• M18: 38,528,782 km (0.054 R)
• M19: 40,300,170 km (0.094 R)
• M20: 43,192,496 km (0.103 R)
• M21: 44,141,245 km (0.059 R)
• M22: 46,080,183 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 447.9

Radius: 3.4

Gravity: 38.75 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.48 AU - 9.92 AU

Year: 15659 Days

Day: 23.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 58,548,973 km

• M1: 50,115 km (0.089 R)
• M2: 223,948 km (0.049 R)
• M3: 680,820 km (0.102 R)
• M4: 788,530 km (0.113 R)
• M5: 1,004,998 km (0.102 R)
• M6: 1,879,248 km (0.091 R)
• M7: 2,020,469 km (0.086 R)
• M8: 2,635,914 km (0.105 R)
• M9: 3,603,214 km (0.105 R)
• M10: 4,720,561 km (0.088 R)
• M11: 5,049,078 km (0.095 R)
• M12: 5,862,441 km (0.076 R)
• M13: 7,007,613 km (0.118 R)
• M14: 11,207,723 km (0.033 R)
• M15: 11,496,896 km (0.083 R)
• M16: 18,060,353 km (0.069 R)
• M17: 18,698,986 km (0.098 R)
• M18: 21,493,175 km (0.057 R)
• M19: 22,391,959 km (0.048 R)
• M20: 22,942,928 km (0.072 R)
• M21: 23,786,361 km (0.059 R)
• M22: 24,747,527 km (0.116 R)
• M23: 31,979,686 km (0.099 R)
• M24: 34,712,391 km (0.089 R)
• M25: 41,593,294 km (0.066 R)
• M26: 47,953,298 km (0.049 R)
• M27: 53,452,217 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 375

Radius: 5.1

Gravity: 14.42 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.84 AU - 11.32 AU

Year: 18246 Days

Day: 19.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 58,548,973 km

• M1: 66,571 km (0.063 R)
• M2: 241,750 km (0.112 R)
• M3: 517,459 km (0.08 R)
• M4: 765,792 km (0.111 R)
• M5: 1,755,681 km (0.074 R)
• M6: 1,961,976 km (0.105 R)
• M7: 2,507,111 km (0.086 R)
• M8: 2,746,916 km (0.099 R)
• M9: 3,349,197 km (0.106 R)
• M10: 3,834,642 km (0.113 R)
• M11: 4,745,992 km (0.093 R)
• M12: 5,357,399 km (0.115 R)
• M13: 6,410,867 km (0.054 R)
• M14: 8,623,569 km (0.095 R)
• M15: 9,847,130 km (0.084 R)
• M16: 11,533,846 km (0.075 R)
• M17: 16,725,341 km (0.057 R)
• M18: 17,185,355 km (0.107 R)
• M19: 19,360,059 km (0.106 R)
• M20: 19,782,074 km (0.07 R)
• M21: 20,383,009 km (0.12 R)
• M22: 21,173,484 km (0.077 R)
• M23: 21,893,050 km (0.037 R)
• M24: 25,333,951 km (0.063 R)
• M25: 25,838,694 km (0.107 R)
• M26: 26,247,246 km (0.109 R)
• M27: 26,763,957 km (0.109 R)
• M28: 30,007,986 km (0.062 R)
• M29: 37,523,634 km (0.11 R)
• M30: 38,047,526 km (0.116 R)
• M31: 39,513,435 km (0.107 R)
• M32: 40,465,626 km (0.109 R)
• M33: 40,740,437 km (0.112 R)
• M34: 45,605,360 km (0.091 R)
• M35: 47,106,724 km (0.098 R)
• M36: 47,563,446 km (0.09 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 11,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit