🌌 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: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.3

Radius: 8

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.6 AU - 0.88 AU

Year: 418 Days

Day: 5.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 71,510,879 km

• M1: 99,483 km (0.116 R)
• M2: 400,324 km (0.091 R)
• M3: 738,714 km (0.035 R)
• M4: 2,004,911 km (0.112 R)
• M5: 2,630,529 km (0.089 R)
• M6: 2,984,478 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63

Radius: 8.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.81 AU - 1.05 AU

Year: 588 Days

Day: 12.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 80.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 71,510,879 km

• M1: 104,719 km (0.119 R)
• M2: 395,088 km (0.117 R)
• M3: 834,307 km (0.116 R)
• M4: 2,023,012 km (0.09 R)
• M5: 2,942,889 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.6

Radius: 11.1

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.87 AU - 2.07 AU

Year: 1814 Days

Day: 12 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,510,879 km

• M1: 145,409 km (0.05 R)
• M2: 558,598 km (0.104 R)
• M3: 1,464,264 km (0.047 R)
• M4: 2,213,749 km (0.109 R)
• M5: 3,147,838 km (0.081 R)
• M6: 4,276,106 km (0.066 R)
• M7: 5,064,636 km (0.037 R)
• M8: 6,425,977 km (0.064 R)
• M9: 7,735,407 km (0.118 R)
• M10: 8,849,462 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.1

Radius: 10.2

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.61 AU - 2.53 AU

Year: 1954 Days

Day: 8.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,510,879 km

• M1: 130,300 km (0.069 R)
• M2: 474,076 km (0.055 R)
• M3: 824,883 km (0.119 R)
• M4: 1,151,904 km (0.065 R)
• M5: 1,476,980 km (0.11 R)
• M6: 1,853,817 km (0.051 R)
• M7: 2,534,786 km (0.119 R)
• M8: 3,487,575 km (0.105 R)
• M9: 3,912,134 km (0.075 R)
• M10: 4,257,705 km (0.101 R)
• M11: 4,623,771 km (0.119 R)
• M12: 5,826,837 km (0.065 R)
• M13: 7,254,300 km (0.075 R)
• M14: 8,327,365 km (0.09 R)
• M15: 9,151,949 km (0.051 R)
• M16: 10,266,603 km (0.089 R)
• M17: 12,105,011 km (0.116 R)
• M18: 14,110,969 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 587.7

Radius: 12.5

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.88 AU - 2.58 AU

Year: 2185 Days

Day: 12.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 71,510,879 km

• M1: 155,432 km (0.117 R)
• M2: 628,909 km (0.066 R)
• M3: 1,258,866 km (0.103 R)
• M4: 1,790,387 km (0.057 R)
• M5: 2,238,134 km (0.049 R)
• M6: 3,138,563 km (0.043 R)
• M7: 3,620,119 km (0.115 R)
• M8: 4,208,786 km (0.114 R)
• M9: 6,495,689 km (0.114 R)
• M10: 7,367,845 km (0.1 R)
• M11: 9,344,930 km (0.102 R)
• M12: 12,326,117 km (0.119 R)
• M13: 13,149,952 km (0.035 R)
• M14: 16,131,288 km (0.044 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.4

Radius: 12.7

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.65 AU - 2.79 AU

Year: 2943 Days

Day: 7.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,510,879 km

• M1: 157,975 km (0.085 R)
• M2: 613,950 km (0.117 R)
• M3: 1,169,556 km (0.095 R)
• M4: 1,623,436 km (0.114 R)
• M5: 2,089,882 km (0.107 R)
• M6: 2,715,351 km (0.109 R)
• M7: 3,127,044 km (0.112 R)
• M8: 4,827,374 km (0.109 R)
• M9: 5,504,902 km (0.072 R)
• M10: 6,072,327 km (0.116 R)
• M11: 8,250,771 km (0.066 R)
• M12: 8,711,084 km (0.066 R)
• M13: 9,582,940 km (0.064 R)
• M14: 10,476,788 km (0.12 R)
• M15: 11,090,737 km (0.071 R)
• M16: 11,805,067 km (0.091 R)
• M17: 14,483,467 km (0.089 R)
• M18: 15,291,595 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.4

Radius: 8.3

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.8 AU - 4.14 AU

Year: 5189 Days

Day: 6.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,510,879 km

• M1: 103,223 km (0.112 R)
• M2: 549,922 km (0.107 R)
• M3: 813,663 km (0.089 R)
• M4: 1,075,908 km (0.076 R)
• M5: 1,424,621 km (0.076 R)
• M6: 2,507,859 km (0.114 R)
• M7: 3,281,280 km (0.055 R)
• M8: 4,143,861 km (0.091 R)
• M9: 4,541,492 km (0.069 R)
• M10: 5,413,049 km (0.075 R)
• M11: 6,070,682 km (0.094 R)
• M12: 6,419,095 km (0.039 R)
• M13: 6,980,985 km (0.117 R)
• M14: 9,383,975 km (0.114 R)
• M15: 12,205,690 km (0.074 R)
• M16: 12,631,745 km (0.053 R)
• M17: 13,289,527 km (0.101 R)
• M18: 15,252,700 km (0.087 R)
• M19: 16,664,305 km (0.089 R)
• M20: 17,188,945 km (0.12 R)
• M21: 17,616,496 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.7

Radius: 3

Gravity: 53.74 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 9.86 AU - 10.74 AU

Year: 21685 Days

Day: 17.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 71,510,879 km

• M1: 49,816 km (0.079 R)
• M2: 167,101 km (0.119 R)
• M3: 504,743 km (0.107 R)
• M4: 644,168 km (0.062 R)
• M5: 895,642 km (0.082 R)
• M6: 1,589,477 km (0.113 R)
• M7: 2,379,354 km (0.054 R)
• M8: 2,513,543 km (0.091 R)
• M9: 2,629,332 km (0.049 R)
• M10: 3,371,936 km (0.068 R)
• M11: 3,959,257 km (0.044 R)
• M12: 4,179,914 km (0.06 R)
• M13: 4,646,061 km (0.057 R)
• M14: 4,855,947 km (0.112 R)
• M15: 5,641,037 km (0.096 R)
• M16: 6,251,097 km (0.052 R)
• M17: 7,363,506 km (0.086 R)
• M18: 8,040,886 km (0.092 R)
• M19: 9,351,961 km (0.049 R)
• M20: 9,574,264 km (0.106 R)
• M21: 12,124,309 km (0.11 R)
• M22: 12,589,259 km (0.116 R)
• M23: 12,928,398 km (0.112 R)
• M24: 14,567,691 km (0.07 R)
• M25: 15,245,220 km (0.069 R)
• M26: 16,101,368 km (0.098 R)
• M27: 18,165,520 km (0.045 R)
• M28: 18,598,606 km (0.099 R)
• M29: 19,127,135 km (0.117 R)
• M30: 21,341,931 km (0.101 R)
• M31: 22,018,712 km (0.07 R)
• M32: 27,387,181 km (0.084 R)
• M33: 31,785,508 km (0.118 R)
• M34: 32,035,786 km (0.071 R)
• M35: 40,757,491 km (0.108 R)
• M36: 41,648,047 km (0.091 R)
• M37: 46,617,688 km (0.11 R)
• M38: 47,102,834 km (0.088 R)
• M39: 50,935,233 km (0.087 R)
• M40: 56,973,003 km (0.118 R)
• M41: 59,972,290 km (0.103 R)
• M42: 62,485,385 km (0.106 R)
• M43: 63,470,337 km (0.117 R)
• M44: 67,513,818 km (0.074 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: 465 - 12,475 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit