🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485

Radius: 10.8

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.6 AU - 0.8 AU

Year: 412 Days

Day: 6.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,427,379 km

• M1: 134,937 km (0.103 R)
• M2: 531,372 km (0.113 R)
• M3: 910,901 km (0.106 R)
• M4: 1,265,448 km (0.081 R)
• M5: 1,777,671 km (0.118 R)
• M6: 2,176,649 km (0.092 R)
• M7: 2,949,472 km (0.044 R)
• M8: 3,761,638 km (0.115 R)
• M9: 4,386,210 km (0.052 R)
• M10: 4,960,815 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.1

Radius: 14.3

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.75 AU - 0.85 AU

Year: 503 Days

Day: 13.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,427,379 km

• M1: 177,872 km (0.035 R)
• M2: 649,404 km (0.086 R)
• M3: 1,136,944 km (0.049 R)
• M4: 1,765,853 km (0.034 R)
• M5: 2,486,317 km (0.105 R)
• M6: 3,052,545 km (0.11 R)
• M7: 4,362,573 km (0.117 R)
• M8: 5,371,461 km (0.112 R)
• M9: 5,879,196 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838

Radius: 14.8

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.46 AU - 1.6 AU

Year: 1330 Days

Day: 5.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,427,379 km

• M1: 188,793 km (0.1 R)
• M2: 648,956 km (0.111 R)
• M3: 1,167,163 km (0.11 R)
• M4: 1,650,214 km (0.101 R)
• M5: 2,123,392 km (0.095 R)
• M6: 2,611,231 km (0.11 R)
• M7: 3,541,580 km (0.104 R)
• M8: 4,218,062 km (0.098 R)
• M9: 4,979,814 km (0.116 R)
• M10: 7,316,383 km (0.098 R)
• M11: 7,909,688 km (0.106 R)
• M12: 9,132,052 km (0.077 R)
• M13: 11,092,233 km (0.105 R)
• M14: 12,395,530 km (0.099 R)
• M15: 13,084,428 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962

Radius: 9.8

Gravity: 10.02 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.81 AU - 2.15 AU

Year: 1958 Days

Day: 9.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,427,379 km

• M1: 122,221 km (0.11 R)
• M2: 434,283 km (0.096 R)
• M3: 841,189 km (0.075 R)
• M4: 1,188,405 km (0.119 R)
• M5: 1,591,721 km (0.085 R)
• M6: 2,036,775 km (0.103 R)
• M7: 2,437,548 km (0.102 R)
• M8: 2,875,271 km (0.099 R)
• M9: 3,416,815 km (0.112 R)
• M10: 3,966,887 km (0.112 R)
• M11: 4,596,395 km (0.076 R)
• M12: 5,267,640 km (0.097 R)
• M13: 6,694,206 km (0.096 R)
• M14: 7,586,557 km (0.115 R)
• M15: 8,394,685 km (0.04 R)
• M16: 9,891,262 km (0.085 R)
• M17: 11,281,325 km (0.063 R)
• M18: 13,671,301 km (0.051 R)
• M19: 15,151,572 km (0.107 R)
• M20: 15,881,011 km (0.111 R)
• M21: 16,838,437 km (0.109 R)
• M22: 17,621,133 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.7

Radius: 12.4

Gravity: 5.27 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.81 AU - 3.01 AU

Year: 2630 Days

Day: 7.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,427,379 km

• M1: 154,385 km (0.103 R)
• M2: 944,860 km (0.059 R)
• M3: 2,125,935 km (0.033 R)
• M4: 2,943,189 km (0.081 R)
• M5: 3,743,238 km (0.12 R)
• M6: 4,247,682 km (0.081 R)
• M7: 5,319,551 km (0.087 R)
• M8: 5,853,615 km (0.082 R)
• M9: 6,339,509 km (0.086 R)
• M10: 7,641,908 km (0.09 R)
• M11: 8,157,422 km (0.114 R)
• M12: 8,627,459 km (0.087 R)
• M13: 9,044,687 km (0.074 R)
• M14: 9,548,383 km (0.106 R)
• M15: 10,070,929 km (0.069 R)
• M16: 10,651,817 km (0.041 R)
• M17: 13,710,495 km (0.079 R)
• M18: 14,619,302 km (0.049 R)
• M19: 15,163,539 km (0.101 R)
• M20: 15,670,078 km (0.105 R)
• M21: 17,039,796 km (0.073 R)
• M22: 20,442,399 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612.6

Radius: 8.1

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.31 AU - 2.53 AU

Year: 2646 Days

Day: 5.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,427,379 km

• M1: 100,829 km (0.091 R)
• M2: 352,752 km (0.077 R)
• M3: 627,413 km (0.118 R)
• M4: 940,671 km (0.09 R)
• M5: 1,463,815 km (0.074 R)
• M6: 1,814,622 km (0.092 R)
• M7: 2,951,566 km (0.101 R)
• M8: 4,483,448 km (0.064 R)
• M9: 6,080,555 km (0.071 R)
• M10: 7,079,869 km (0.103 R)
• M11: 7,436,211 km (0.086 R)
• M12: 8,644,214 km (0.086 R)
• M13: 9,904,426 km (0.089 R)
• M14: 10,200,480 km (0.098 R)
• M15: 10,578,664 km (0.102 R)
• M16: 10,887,883 km (0.118 R)
• M17: 13,136,189 km (0.085 R)
• M18: 14,088,529 km (0.032 R)
• M19: 14,653,111 km (0.057 R)
• M20: 15,478,443 km (0.074 R)
• M21: 16,283,130 km (0.062 R)
• M22: 17,274,665 km (0.102 R)
• M23: 17,596,001 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.1

Radius: 10.4

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 3.73 AU - 3.93 AU

Year: 5269 Days

Day: 10.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,427,379 km

• M1: 130,001 km (0.115 R)
• M2: 540,048 km (0.116 R)
• M3: 893,398 km (0.119 R)
• M4: 1,416,393 km (0.043 R)
• M5: 1,765,704 km (0.108 R)
• M6: 2,849,540 km (0.076 R)
• M7: 3,229,369 km (0.089 R)
• M8: 4,329,811 km (0.09 R)
• M9: 4,683,161 km (0.114 R)
• M10: 5,307,284 km (0.109 R)
• M11: 9,361,236 km (0.072 R)
• M12: 9,707,406 km (0.071 R)
• M13: 11,255,744 km (0.119 R)
• M14: 12,007,772 km (0.082 R)
• M15: 13,436,881 km (0.115 R)
• M16: 15,934,716 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.1

Radius: 8.6

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.6 AU - 4.88 AU

Year: 6137 Days

Day: 12.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,427,379 km

• M1: 110,702 km (0.083 R)
• M2: 446,101 km (0.113 R)
• M3: 776,263 km (0.108 R)
• M4: 2,137,006 km (0.085 R)
• M5: 3,835,540 km (0.069 R)
• M6: 4,294,356 km (0.031 R)
• M7: 6,072,926 km (0.115 R)
• M8: 7,058,327 km (0.11 R)
• M9: 8,183,602 km (0.083 R)
• M10: 8,596,642 km (0.104 R)
• M11: 12,419,765 km (0.098 R)
• M12: 13,999,518 km (0.113 R)
• M13: 14,320,107 km (0.073 R)
• M14: 14,591,028 km (0.08 R)
• M15: 15,367,890 km (0.11 R)
• M16: 16,171,829 km (0.065 R)
• M17: 17,926,313 km (0.051 R)
• M18: 21,033,161 km (0.113 R)
• M19: 25,182,558 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.1

Radius: 8

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.33 AU - 4.83 AU

Year: 6890 Days

Day: 9.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,427,379 km

• M1: 115,938 km (0.06 R)
• M2: 441,613 km (0.111 R)
• M3: 1,190,201 km (0.073 R)
• M4: 1,528,142 km (0.082 R)
• M5: 2,431,414 km (0.108 R)
• M6: 5,347,974 km (0.103 R)
• M7: 6,004,559 km (0.079 R)
• M8: 6,429,716 km (0.038 R)
• M9: 7,005,967 km (0.082 R)
• M10: 10,940,092 km (0.027 R)
• M11: 12,524,184 km (0.105 R)
• M12: 16,666,250 km (0.111 R)
• M13: 17,628,613 km (0.078 R)
• M14: 26,783,554 km (0.105 R)
• M15: 27,191,059 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 736.4

Radius: 6

Gravity: 20.46 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.89 AU - 6.93 AU

Year: 10099 Days

Day: 22.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 49,427,379 km

• M1: 74,649 km (0.037 R)
• M2: 413,189 km (0.067 R)
• M3: 675,135 km (0.09 R)
• M4: 873,801 km (0.09 R)
• M5: 1,123,630 km (0.109 R)
• M6: 1,980,377 km (0.044 R)
• M7: 2,454,901 km (0.073 R)
• M8: 2,979,690 km (0.118 R)
• M9: 5,774,927 km (0.081 R)
• M10: 6,392,915 km (0.114 R)
• M11: 6,815,829 km (0.104 R)
• M12: 7,932,577 km (0.112 R)
• M13: 8,695,376 km (0.048 R)
• M14: 9,070,867 km (0.114 R)
• M15: 10,418,145 km (0.102 R)
• M16: 11,387,240 km (0.084 R)
• M17: 12,592,251 km (0.116 R)
• M18: 15,051,491 km (0.059 R)
• M19: 17,368,014 km (0.106 R)
• M20: 17,589,718 km (0.094 R)
• M21: 18,038,810 km (0.047 R)
• M22: 19,750,958 km (0.094 R)
• M23: 20,895,382 km (0.035 R)
• M24: 22,693,698 km (0.106 R)
• M25: 24,039,779 km (0.081 R)
• M26: 24,499,942 km (0.106 R)
• M27: 33,250,670 km (0.076 R)
• M28: 34,399,731 km (0.108 R)
• M29: 36,534,642 km (0.067 R)
• M30: 36,898,764 km (0.106 R)
• M31: 38,005,937 km (0.109 R)
• M32: 44,978,395 km (0.11 R)
• M33: 49,131,830 km (0.073 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: 384 - 18,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit