🌌 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: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.8

Radius: 12.2

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.52 AU - 0.82 AU

Year: 379 Days

Day: 14.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,224,553 km

• M1: 151,991 km (0.086 R)
• M2: 549,922 km (0.046 R)
• M3: 1,087,277 km (0.077 R)
• M4: 1,470,397 km (0.05 R)
• M5: 2,129,376 km (0.063 R)
• M6: 2,804,062 km (0.097 R)
• M7: 3,247,620 km (0.107 R)
• M8: 3,653,030 km (0.119 R)
• M9: 4,737,914 km (0.103 R)
• M10: 5,387,019 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268

Radius: 14.3

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.75 AU - 1.05 AU

Year: 589 Days

Day: 8 Hours

Environment

Temp: -175 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,224,553 km

• M1: 179,069 km (0.119 R)
• M2: 648,507 km (0.072 R)
• M3: 1,659,788 km (0.115 R)
• M4: 2,207,017 km (0.05 R)
• M5: 2,775,639 km (0.101 R)
• M6: 4,212,826 km (0.062 R)
• M7: 5,007,490 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.8

Radius: 8.4

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.78 AU - 1.06 AU

Year: 609 Days

Day: 9.8 Hours

Environment

Temp: -163 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,224,553 km

• M1: 104,569 km (0.075 R)
• M2: 403,166 km (0.089 R)
• M3: 895,044 km (0.079 R)
• M4: 1,185,862 km (0.094 R)
• M5: 1,795,324 km (0.094 R)
• M6: 2,240,378 km (0.116 R)
• M7: 2,677,503 km (0.116 R)
• M8: 3,283,075 km (0.118 R)
• M9: 3,698,059 km (0.118 R)
• M10: 4,015,805 km (0.083 R)
• M11: 4,296,600 km (0.117 R)
• M12: 4,794,163 km (0.036 R)
• M13: 5,219,320 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.4

Radius: 14.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.84 AU - 1.1 AU

Year: 659 Days

Day: 11 Hours

Environment

Temp: -173 °C

Axial Tilt: 102.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,224,553 km

• M1: 175,329 km (0.075 R)
• M2: 622,327 km (0.119 R)
• M3: 1,072,766 km (0.047 R)
• M4: 1,583,344 km (0.096 R)
• M5: 2,488,261 km (0.086 R)
• M6: 3,007,964 km (0.029 R)
• M7: 3,554,445 km (0.091 R)
• M8: 4,230,927 km (0.116 R)
• M9: 4,682,563 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.8

Radius: 9.5

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.94 AU - 1.3 AU

Year: 818 Days

Day: 6.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,224,553 km

• M1: 119,828 km (0.091 R)
• M2: 441,613 km (0.111 R)
• M3: 819,796 km (0.04 R)
• M4: 1,278,015 km (0.108 R)
• M5: 1,578,557 km (0.062 R)
• M6: 1,944,174 km (0.117 R)
• M7: 2,278,974 km (0.108 R)
• M8: 2,663,141 km (0.118 R)
• M9: 3,913,032 km (0.06 R)
• M10: 4,636,636 km (0.1 R)
• M11: 5,138,986 km (0.088 R)
• M12: 6,290,740 km (0.09 R)
• M13: 6,906,934 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.4

Radius: 12

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.34 AU - 1.66 AU

Year: 1268 Days

Day: 11.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,224,553 km

• M1: 149,299 km (0.107 R)
• M2: 537,505 km (0.108 R)
• M3: 1,536,370 km (0.083 R)
• M4: 2,485,868 km (0.098 R)
• M5: 2,969,967 km (0.05 R)
• M6: 4,129,948 km (0.079 R)
• M7: 4,937,328 km (0.099 R)
• M8: 6,029,542 km (0.102 R)
• M9: 6,798,475 km (0.071 R)
• M10: 7,253,253 km (0.11 R)
• M11: 8,073,049 km (0.074 R)
• M12: 9,306,932 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448

Radius: 8.9

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.29 AU - 1.85 AU

Year: 1358 Days

Day: 7.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,224,553 km

• M1: 112,049 km (0.031 R)
• M2: 395,686 km (0.113 R)
• M3: 828,174 km (0.113 R)
• M4: 1,169,855 km (0.12 R)
• M5: 1,545,645 km (0.074 R)
• M6: 1,940,883 km (0.117 R)
• M7: 2,233,795 km (0.108 R)
• M8: 2,580,563 km (0.063 R)
• M9: 3,517,046 km (0.048 R)
• M10: 3,875,034 km (0.077 R)
• M11: 4,982,207 km (0.099 R)
• M12: 5,829,380 km (0.102 R)
• M13: 6,536,978 km (0.092 R)
• M14: 7,275,992 km (0.077 R)
• M15: 7,781,483 km (0.036 R)
• M16: 8,175,972 km (0.056 R)
• M17: 8,891,200 km (0.103 R)
• M18: 9,469,396 km (0.104 R)
• M19: 10,861,703 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 181.2

Radius: 3.9

Gravity: 11.91 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 6 AU - 8.66 AU

Year: 13698 Days

Day: 22.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,224,553 km

• M1: 55,501 km (0.056 R)
• M2: 540,348 km (0.119 R)
• M3: 669,600 km (0.061 R)
• M4: 925,861 km (0.045 R)
• M5: 1,448,107 km (0.1 R)
• M6: 1,937,442 km (0.082 R)
• M7: 4,590,261 km (0.117 R)
• M8: 6,218,035 km (0.113 R)
• M9: 8,235,662 km (0.118 R)
• M10: 17,218,117 km (0.111 R)
• M11: 17,760,409 km (0.106 R)
• M12: 20,266,622 km (0.102 R)
• M13: 24,157,214 km (0.09 R)
• M14: 27,496,388 km (0.118 R)
• M15: 28,329,947 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588.9

Radius: 5.1

Gravity: 22.64 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 7.49 AU - 7.89 AU

Year: 14720 Days

Day: 19.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,224,553 km

• M1: 63,429 km (0.09 R)
• M2: 278,551 km (0.099 R)
• M3: 799,152 km (0.114 R)
• M4: 972,985 km (0.114 R)
• M5: 1,135,149 km (0.046 R)
• M6: 1,342,940 km (0.104 R)
• M7: 2,048,743 km (0.119 R)
• M8: 2,589,390 km (0.064 R)
• M9: 2,928,229 km (0.074 R)
• M10: 3,399,312 km (0.082 R)
• M11: 3,777,645 km (0.057 R)
• M12: 4,490,928 km (0.103 R)
• M13: 5,150,655 km (0.106 R)
• M14: 5,948,759 km (0.118 R)
• M15: 6,784,563 km (0.079 R)
• M16: 7,786,868 km (0.097 R)
• M17: 8,063,774 km (0.119 R)
• M18: 9,391,904 km (0.075 R)
• M19: 10,354,267 km (0.102 R)
• M20: 11,498,840 km (0.111 R)
• M21: 12,040,385 km (0.119 R)
• M22: 13,435,684 km (0.057 R)
• M23: 14,446,666 km (0.045 R)
• M24: 15,148,131 km (0.08 R)
• M25: 16,694,823 km (0.101 R)
• M26: 17,467,047 km (0.075 R)
• M27: 29,777,157 km (0.108 R)
• M28: 33,506,632 km (0.081 R)
• M29: 39,261,064 km (0.062 R)
• M30: 39,802,309 km (0.113 R)
• M31: 41,736,011 km (0.073 R)
• M32: 44,312,984 km (0.1 R)
• M33: 50,256,357 km (0.052 R)
• M34: 50,574,702 km (0.043 R)
• M35: 51,054,612 km (0.1 R)
• M36: 57,400,853 km (0.077 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.6

Radius: 7.8

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.91 AU - 11.91 AU

Year: 23184 Days

Day: 22 Hours

Environment

Temp: -232 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,224,553 km

• M1: 97,089 km (0.061 R)
• M2: 345,571 km (0.074 R)
• M3: 1,011,132 km (0.046 R)
• M4: 1,328,130 km (0.037 R)
• M5: 1,872,965 km (0.111 R)
• M6: 2,796,882 km (0.067 R)
• M7: 3,290,555 km (0.04 R)
• M8: 3,690,579 km (0.087 R)
• M9: 4,657,131 km (0.066 R)
• M10: 4,905,165 km (0.073 R)
• M11: 5,162,024 km (0.118 R)
• M12: 5,544,695 km (0.061 R)
• M13: 6,496,736 km (0.102 R)
• M14: 8,774,364 km (0.12 R)
• M15: 10,358,755 km (0.12 R)
• M16: 12,733,172 km (0.074 R)
• M17: 14,083,443 km (0.107 R)
• M18: 14,379,497 km (0.026 R)
• M19: 15,684,140 km (0.097 R)
• M20: 18,615,361 km (0.086 R)
• M21: 19,152,118 km (0.088 R)
• M22: 19,424,236 km (0.036 R)
• M23: 20,728,879 km (0.106 R)
• M24: 22,390,463 km (0.118 R)
• M25: 29,563,830 km (0.072 R)
• M26: 37,561,333 km (0.117 R)
• M27: 40,766,766 km (0.064 R)
• M28: 42,435,830 km (0.103 R)
• M29: 44,944,287 km (0.086 R)
• M30: 46,724,950 km (0.095 R)
• M31: 52,703,330 km (0.041 R)
• M32: 54,682,659 km (0.109 R)
• M33: 58,217,208 km (0.117 R)
• M34: 61,703,587 km (0.088 R)
• M35: 62,099,273 km (0.095 R)
• M36: 68,452,096 km (0.096 R)
• M37: 69,515,587 km (0.106 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 14,725 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit