🌌 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: 251.5

Radius: 9.2

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.58 AU - 0.62 AU

Year: 315 Days

Day: 14.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,216,058 km

• M1: 114,442 km (0.099 R)
• M2: 489,783 km (0.09 R)
• M3: 865,872 km (0.047 R)
• M4: 1,206,656 km (0.066 R)
• M5: 1,544,897 km (0.11 R)
• M6: 1,834,967 km (0.067 R)
• M7: 2,424,682 km (0.118 R)
• M8: 2,846,698 km (0.103 R)
• M9: 3,249,415 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.4

Radius: 11.5

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.64 AU - 0.68 AU

Year: 364 Days

Day: 7.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,216,058 km

• M1: 143,016 km (0.09 R)
• M2: 638,334 km (0.045 R)
• M3: 1,134,101 km (0.098 R)
• M4: 1,570,329 km (0.049 R)
• M5: 2,248,306 km (0.118 R)
• M6: 2,875,271 km (0.108 R)
• M7: 3,893,883 km (0.105 R)
• M8: 4,296,451 km (0.067 R)
• M9: 4,771,274 km (0.088 R)
• M10: 5,624,282 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.4

Radius: 9.8

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.1 AU - 1.18 AU

Year: 826 Days

Day: 13.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,216,058 km

• M1: 121,922 km (0.038 R)
• M2: 467,793 km (0.07 R)
• M3: 1,167,462 km (0.108 R)
• M4: 1,488,948 km (0.027 R)
• M5: 2,138,950 km (0.059 R)
• M6: 3,002,579 km (0.103 R)
• M7: 3,425,043 km (0.087 R)
• M8: 3,914,378 km (0.077 R)
• M9: 4,404,760 km (0.105 R)
• M10: 5,233,682 km (0.119 R)
• M11: 6,031,936 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461

Radius: 12.2

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.7 AU - 2.12 AU

Year: 1790 Days

Day: 6.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 67.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,216,058 km

• M1: 151,692 km (0.102 R)
• M2: 722,109 km (0.095 R)
• M3: 1,353,861 km (0.099 R)
• M4: 2,071,482 km (0.099 R)
• M5: 2,847,296 km (0.059 R)
• M6: 3,265,273 km (0.119 R)
• M7: 4,853,254 km (0.069 R)
• M8: 7,084,656 km (0.072 R)
• M9: 7,914,775 km (0.114 R)
• M10: 11,248,862 km (0.071 R)
• M11: 12,265,978 km (0.118 R)
• M12: 13,185,706 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 862.4

Radius: 9.6

Gravity: 9.36 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.35 AU - 2.63 AU

Year: 2665 Days

Day: 7.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,216,058 km

• M1: 119,379 km (0.119 R)
• M2: 448,494 km (0.038 R)
• M3: 791,971 km (0.096 R)
• M4: 1,514,379 km (0.093 R)
• M5: 1,837,810 km (0.067 R)
• M6: 2,375,016 km (0.096 R)
• M7: 2,688,872 km (0.114 R)
• M8: 3,203,638 km (0.088 R)
• M9: 5,398,389 km (0.053 R)
• M10: 5,838,805 km (0.069 R)
• M11: 6,529,947 km (0.078 R)
• M12: 7,060,720 km (0.119 R)
• M13: 7,398,961 km (0.117 R)
• M14: 7,845,212 km (0.114 R)
• M15: 8,513,764 km (0.115 R)
• M16: 9,661,778 km (0.057 R)
• M17: 10,079,306 km (0.079 R)
• M18: 10,508,951 km (0.092 R)
• M19: 11,196,952 km (0.045 R)
• M20: 11,530,854 km (0.115 R)
• M21: 15,605,900 km (0.085 R)
• M22: 16,879,577 km (0.082 R)
• M23: 17,653,895 km (0.055 R)
• M24: 18,049,731 km (0.119 R)
• M25: 19,693,064 km (0.095 R)
• M26: 20,926,349 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36

Radius: 8.4

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.11 AU - 3.47 AU

Year: 4047 Days

Day: 12.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,216,058 km

• M1: 105,616 km (0.117 R)
• M2: 680,970 km (0.073 R)
• M3: 1,543,252 km (0.091 R)
• M4: 2,060,411 km (0.042 R)
• M5: 2,420,942 km (0.104 R)
• M6: 3,583,168 km (0.116 R)
• M7: 4,896,638 km (0.054 R)
• M8: 5,327,479 km (0.081 R)
• M9: 5,783,454 km (0.115 R)
• M10: 8,596,791 km (0.119 R)
• M11: 9,506,945 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.7

Radius: 4.1

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.96 AU - 9.98 AU

Year: 16719 Days

Day: 21.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,216,058 km

• M1: 54,304 km (0.1 R)
• M2: 538,104 km (0.065 R)
• M3: 1,363,136 km (0.095 R)
• M4: 1,665,772 km (0.078 R)
• M5: 2,258,030 km (0.094 R)
• M6: 2,388,629 km (0.044 R)
• M7: 3,723,042 km (0.09 R)
• M8: 4,073,550 km (0.046 R)
• M9: 8,731,429 km (0.118 R)
• M10: 10,548,295 km (0.116 R)
• M11: 11,544,767 km (0.059 R)
• M12: 14,258,023 km (0.049 R)
• M13: 19,050,092 km (0.105 R)
• M14: 20,584,966 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.5

Radius: 8

Gravity: 9.4 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 7.52 AU - 11.4 AU

Year: 19735 Days

Day: 17.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 75.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 72,216,058 km

• M1: 103,821 km (0.073 R)
• M2: 460,013 km (0.035 R)
• M3: 1,096,403 km (0.109 R)
• M4: 1,804,300 km (0.118 R)
• M5: 2,353,623 km (0.086 R)
• M6: 3,492,213 km (0.084 R)
• M7: 4,680,469 km (0.062 R)
• M8: 5,328,826 km (0.09 R)
• M9: 9,387,266 km (0.105 R)
• M10: 11,581,867 km (0.107 R)
• M11: 12,428,142 km (0.115 R)
• M12: 14,760,672 km (0.116 R)
• M13: 15,061,813 km (0.118 R)
• M14: 16,228,227 km (0.047 R)
• M15: 17,121,028 km (0.12 R)
• M16: 18,046,290 km (0.11 R)
• M17: 19,631,579 km (0.054 R)
• M18: 19,995,999 km (0.112 R)
• M19: 22,575,815 km (0.108 R)
• M20: 30,767,644 km (0.057 R)
• M21: 33,023,132 km (0.072 R)
• M22: 35,520,967 km (0.068 R)
• M23: 42,235,518 km (0.116 R)
• M24: 42,690,744 km (0.05 R)
• M25: 44,544,561 km (0.103 R)
• M26: 47,752,388 km (0.104 R)
• M27: 49,077,526 km (0.08 R)
• M28: 49,918,117 km (0.112 R)
• M29: 57,547,458 km (0.111 R)
• M30: 59,616,846 km (0.079 R)
• M31: 61,540,674 km (0.104 R)
• M32: 62,125,901 km (0.098 R)
• M33: 63,307,276 km (0.081 R)
• M34: 65,512,049 km (0.118 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 179 - 10,944 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit