🌌 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: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.5

Radius: 14.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.57 AU - 0.79 AU

Year: 374 Days

Day: 9.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 73,078,137 km

• M1: 181,612 km (0.098 R)
• M2: 680,072 km (0.091 R)
• M3: 1,145,321 km (0.088 R)
• M4: 1,702,873 km (0.117 R)
• M5: 2,270,148 km (0.044 R)
• M6: 2,843,556 km (0.119 R)
• M7: 3,300,877 km (0.067 R)
• M8: 3,892,985 km (0.094 R)
• M9: 4,406,555 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.2

Radius: 13.3

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.58 AU - 0.96 AU

Year: 451 Days

Day: 9.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,078,137 km

• M1: 165,455 km (0.061 R)
• M2: 648,806 km (0.076 R)
• M3: 1,175,390 km (0.117 R)
• M4: 1,779,766 km (0.04 R)
• M5: 2,349,435 km (0.097 R)
• M6: 3,422,500 km (0.055 R)
• M7: 4,033,159 km (0.073 R)
• M8: 4,551,665 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.7

Radius: 13.5

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.47 AU - 1.63 AU

Year: 1287 Days

Day: 8 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 73,078,137 km

• M1: 168,746 km (0.088 R)
• M2: 594,053 km (0.098 R)
• M3: 1,125,425 km (0.077 R)
• M4: 1,588,430 km (0.067 R)
• M5: 2,281,667 km (0.062 R)
• M6: 2,797,929 km (0.086 R)
• M7: 3,768,370 km (0.112 R)
• M8: 4,551,066 km (0.058 R)
• M9: 5,418,734 km (0.05 R)
• M10: 6,559,567 km (0.116 R)
• M11: 8,779,600 km (0.088 R)
• M12: 9,374,700 km (0.086 R)
• M13: 9,807,188 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.2

Radius: 8.4

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.8 AU - 3 AU

Year: 2479 Days

Day: 10.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 73,078,137 km

• M1: 104,719 km (0.106 R)
• M2: 441,015 km (0.099 R)
• M3: 946,955 km (0.115 R)
• M4: 1,257,221 km (0.112 R)
• M5: 1,643,632 km (0.068 R)
• M6: 2,127,581 km (0.069 R)
• M7: 5,189,700 km (0.096 R)
• M8: 5,968,357 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.9

Radius: 14.4

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.13 AU - 2.99 AU

Year: 2731 Days

Day: 13.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,078,137 km

• M1: 179,069 km (0.072 R)
• M2: 783,294 km (0.11 R)
• M3: 1,238,371 km (0.039 R)
• M4: 1,855,313 km (0.082 R)
• M5: 2,615,270 km (0.11 R)
• M6: 3,631,638 km (0.071 R)
• M7: 4,262,642 km (0.06 R)
• M8: 7,459,847 km (0.096 R)
• M9: 8,220,104 km (0.077 R)
• M10: 8,686,999 km (0.075 R)
• M11: 9,858,649 km (0.118 R)
• M12: 10,735,742 km (0.092 R)
• M13: 17,022,891 km (0.093 R)
• M14: 18,173,449 km (0.1 R)
• M15: 19,433,811 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.3

Radius: 11.4

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.11 AU - 4.39 AU

Year: 4843 Days

Day: 7.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 73,078,137 km

• M1: 164,258 km (0.119 R)
• M2: 527,033 km (0.065 R)
• M3: 1,360,443 km (0.025 R)
• M4: 1,767,349 km (0.093 R)
• M5: 2,129,376 km (0.105 R)
• M6: 3,548,461 km (0.105 R)
• M7: 4,683,311 km (0.09 R)
• M8: 6,513,940 km (0.112 R)
• M9: 6,974,702 km (0.104 R)
• M10: 7,656,419 km (0.103 R)
• M11: 9,190,844 km (0.089 R)
• M12: 9,970,548 km (0.107 R)
• M13: 13,884,178 km (0.116 R)
• M14: 14,649,371 km (0.109 R)
• M15: 15,281,572 km (0.112 R)
• M16: 18,113,609 km (0.085 R)
• M17: 20,683,402 km (0.06 R)
• M18: 21,278,352 km (0.095 R)
• M19: 22,089,472 km (0.055 R)
• M20: 24,280,482 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 700.3

Radius: 3.8

Gravity: 48.5 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 7.01 AU - 10.77 AU

Year: 17676 Days

Day: 16.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 73,078,137 km

• M1: 47,273 km (0.119 R)
• M2: 352,752 km (0.101 R)
• M3: 594,801 km (0.113 R)
• M4: 728,990 km (0.096 R)
• M5: 2,652,221 km (0.106 R)
• M6: 3,230,117 km (0.12 R)
• M7: 3,505,826 km (0.109 R)
• M8: 3,708,232 km (0.114 R)
• M9: 4,136,082 km (0.063 R)
• M10: 5,273,774 km (0.094 R)
• M11: 6,390,223 km (0.097 R)
• M12: 8,045,523 km (0.025 R)
• M13: 9,078,646 km (0.048 R)
• M14: 9,626,922 km (0.046 R)
• M15: 11,341,613 km (0.109 R)
• M16: 16,778,748 km (0.075 R)
• M17: 18,110,019 km (0.066 R)
• M18: 18,976,789 km (0.086 R)
• M19: 21,839,494 km (0.108 R)
• M20: 23,221,629 km (0.069 R)
• M21: 28,172,421 km (0.08 R)
• M22: 33,139,369 km (0.095 R)
• M23: 34,564,887 km (0.116 R)
• M24: 36,301,569 km (0.111 R)
• M25: 39,803,206 km (0.091 R)
• M26: 41,859,130 km (0.048 R)
• M27: 42,158,475 km (0.072 R)
• M28: 43,676,744 km (0.117 R)
• M29: 48,121,297 km (0.069 R)
• M30: 48,779,826 km (0.098 R)
• M31: 49,611,291 km (0.098 R)
• M32: 50,114,838 km (0.12 R)
• M33: 53,911,482 km (0.109 R)
• M34: 56,790,044 km (0.117 R)
• M35: 57,341,013 km (0.043 R)
• M36: 58,267,024 km (0.054 R)
• M37: 59,391,402 km (0.092 R)
• M38: 61,490,260 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 748.8

Radius: 3.1

Gravity: 77.92 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 8.73 AU - 9.27 AU

Year: 18005 Days

Day: 18.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 73,078,137 km

• M1: 39,494 km (0.087 R)
• M2: 210,335 km (0.082 R)
• M3: 378,782 km (0.099 R)
• M4: 486,193 km (0.041 R)
• M5: 764,445 km (0.114 R)
• M6: 1,179,729 km (0.109 R)
• M7: 1,694,046 km (0.12 R)
• M8: 2,131,321 km (0.119 R)
• M9: 2,343,301 km (0.114 R)
• M10: 3,011,854 km (0.102 R)
• M11: 3,561,177 km (0.091 R)
• M12: 3,678,612 km (0.103 R)
• M13: 3,890,293 km (0.054 R)
• M14: 6,738,786 km (0.077 R)
• M15: 7,767,869 km (0.116 R)
• M16: 9,957,085 km (0.11 R)
• M17: 14,586,391 km (0.106 R)
• M18: 16,698,862 km (0.106 R)
• M19: 17,699,822 km (0.109 R)
• M20: 20,752,067 km (0.048 R)
• M21: 21,421,218 km (0.043 R)
• M22: 23,207,716 km (0.105 R)
• M23: 28,803,873 km (0.068 R)
• M24: 29,040,088 km (0.111 R)
• M25: 30,361,785 km (0.047 R)
• M26: 33,383,513 km (0.063 R)
• M27: 34,433,690 km (0.096 R)
• M28: 34,967,006 km (0.082 R)
• M29: 37,294,749 km (0.097 R)
• M30: 37,434,773 km (0.042 R)
• M31: 42,713,932 km (0.065 R)
• M32: 46,172,485 km (0.11 R)
• M33: 46,658,080 km (0.115 R)
• M34: 51,182,817 km (0.095 R)
• M35: 54,536,502 km (0.085 R)
• M36: 62,266,224 km (0.075 R)
• M37: 63,854,954 km (0.041 R)
• M38: 65,878,564 km (0.072 R)
• M39: 66,699,856 km (0.042 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 453 - 13,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit