🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.43 AU - 0.69 AU

Year: 271 Days

Day: 18.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 2.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839

Radius: 8.3

Gravity: 12.18 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.75 AU - 1.01 AU

Year: 533 Days

Day: 11 Hours

Environment

Temp: -147 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,671,676 km

• M1: 108,458 km (0.042 R)
• M2: 426,354 km (0.09 R)
• M3: 692,638 km (0.108 R)
• M4: 1,047,484 km (0.053 R)
• M5: 1,340,547 km (0.064 R)
• M6: 1,704,668 km (0.119 R)
• M7: 2,227,961 km (0.037 R)
• M8: 2,946,330 km (0.058 R)
• M9: 3,852,444 km (0.072 R)
• M10: 4,916,534 km (0.082 R)
• M11: 5,481,266 km (0.114 R)
• M12: 6,339,808 km (0.101 R)
• M13: 6,883,896 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.4

Radius: 9.5

Gravity: 10.97 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.08 AU - 1.24 AU

Year: 807 Days

Day: 5.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 41,671,676 km

• M1: 118,631 km (0.088 R)
• M2: 421,866 km (0.057 R)
• M3: 767,886 km (0.116 R)
• M4: 1,169,855 km (0.052 R)
• M5: 1,484,160 km (0.112 R)
• M6: 2,267,605 km (0.058 R)
• M7: 3,248,967 km (0.053 R)
• M8: 3,992,767 km (0.089 R)
• M9: 4,491,078 km (0.045 R)
• M10: 4,827,673 km (0.079 R)
• M11: 5,652,556 km (0.107 R)
• M12: 5,961,475 km (0.092 R)
• M13: 6,281,615 km (0.056 R)
• M14: 6,840,961 km (0.119 R)
• M15: 7,704,440 km (0.051 R)
• M16: 8,059,136 km (0.114 R)
• M17: 9,910,560 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.1

Radius: 11.6

Gravity: 6.71 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.3 AU - 1.34 AU

Year: 979 Days

Day: 14.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,671,676 km

• M1: 144,661 km (0.12 R)
• M2: 562,338 km (0.079 R)
• M3: 931,995 km (0.039 R)
• M4: 1,348,026 km (0.036 R)
• M5: 1,841,550 km (0.096 R)
• M6: 2,609,286 km (0.107 R)
• M7: 3,341,867 km (0.099 R)
• M8: 4,258,154 km (0.099 R)
• M9: 4,906,511 km (0.113 R)
• M10: 5,537,216 km (0.03 R)
• M11: 6,023,409 km (0.075 R)
• M12: 6,400,994 km (0.095 R)
• M13: 6,841,559 km (0.08 R)
• M14: 7,352,137 km (0.034 R)
• M15: 8,504,789 km (0.084 R)
• M16: 9,416,139 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.9

Radius: 13.5

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.56 AU - 1.66 AU

Year: 1319 Days

Day: 10.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 92.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,671,676 km

• M1: 167,849 km (0.093 R)
• M2: 595,100 km (0.111 R)
• M3: 1,068,428 km (0.059 R)
• M4: 1,654,253 km (0.059 R)
• M5: 2,141,942 km (0.086 R)
• M6: 3,092,338 km (0.064 R)
• M7: 3,680,556 km (0.029 R)
• M8: 4,113,642 km (0.111 R)
• M9: 4,599,536 km (0.1 R)
• M10: 6,528,301 km (0.088 R)
• M11: 7,502,034 km (0.088 R)
• M12: 7,983,141 km (0.103 R)
• M13: 9,428,855 km (0.1 R)
• M14: 10,343,795 km (0.116 R)
• M15: 11,351,636 km (0.071 R)
• M16: 12,095,437 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712

Radius: 14.4

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.59 AU - 2.25 AU

Year: 1718 Days

Day: 9.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 41,671,676 km

• M1: 179,069 km (0.1 R)
• M2: 905,965 km (0.106 R)
• M3: 1,433,297 km (0.103 R)
• M4: 2,088,386 km (0.027 R)
• M5: 2,824,707 km (0.091 R)
• M6: 5,049,227 km (0.109 R)
• M7: 6,235,389 km (0.103 R)
• M8: 6,738,337 km (0.114 R)
• M9: 7,684,394 km (0.061 R)
• M10: 8,809,968 km (0.109 R)
• M11: 9,283,445 km (0.051 R)
• M12: 9,773,977 km (0.111 R)
• M13: 10,247,454 km (0.093 R)
• M14: 10,771,795 km (0.095 R)
• M15: 12,809,467 km (0.092 R)
• M16: 14,871,076 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.2

Radius: 10.4

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.06 AU - 2.18 AU

Year: 1993 Days

Day: 8.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,671,676 km

• M1: 129,402 km (0.074 R)
• M2: 706,252 km (0.089 R)
• M3: 1,059,153 km (0.107 R)
• M4: 1,505,703 km (0.107 R)
• M5: 3,329,151 km (0.116 R)
• M6: 3,667,691 km (0.066 R)
• M7: 4,136,980 km (0.03 R)
• M8: 4,885,418 km (0.106 R)
• M9: 5,721,670 km (0.032 R)
• M10: 6,114,963 km (0.095 R)
• M11: 6,700,937 km (0.108 R)
• M12: 7,033,643 km (0.075 R)
• M13: 7,594,785 km (0.09 R)
• M14: 8,359,529 km (0.113 R)
• M15: 9,458,325 km (0.074 R)
• M16: 10,411,264 km (0.112 R)
• M17: 10,928,723 km (0.059 R)
• M18: 11,355,077 km (0.119 R)
• M19: 12,817,546 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.9

Radius: 8.5

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.4 AU - 3.94 AU

Year: 4540 Days

Day: 12.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 41,671,676 km

• M1: 105,766 km (0.065 R)
• M2: 381,624 km (0.117 R)
• M3: 717,771 km (0.028 R)
• M4: 1,175,241 km (0.101 R)
• M5: 1,616,555 km (0.096 R)
• M6: 2,125,636 km (0.079 R)
• M7: 2,816,330 km (0.047 R)
• M8: 3,686,840 km (0.112 R)
• M9: 4,226,289 km (0.107 R)
• M10: 5,002,553 km (0.079 R)
• M11: 5,412,451 km (0.064 R)
• M12: 6,634,666 km (0.08 R)
• M13: 7,250,111 km (0.109 R)
• M14: 7,556,188 km (0.096 R)
• M15: 7,967,134 km (0.079 R)
• M16: 9,541,951 km (0.077 R)
• M17: 9,984,910 km (0.115 R)
• M18: 10,402,737 km (0.09 R)
• M19: 11,031,347 km (0.115 R)
• M20: 11,314,237 km (0.103 R)
• M21: 11,726,827 km (0.112 R)
• M22: 12,192,226 km (0.095 R)
• M23: 13,114,797 km (0.037 R)
• M24: 15,247,464 km (0.073 R)
• M25: 17,491,731 km (0.114 R)
• M26: 20,067,058 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.5

Radius: 6.5

Gravity: 19.09 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.91 AU - 8.29 AU

Year: 12215 Days

Day: 21.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 41,671,676 km

• M1: 83,326 km (0.105 R)
• M2: 509,082 km (0.103 R)
• M3: 1,362,388 km (0.103 R)
• M4: 1,801,458 km (0.114 R)
• M5: 2,664,787 km (0.098 R)
• M6: 3,480,544 km (0.117 R)
• M7: 3,694,619 km (0.067 R)
• M8: 4,737,166 km (0.078 R)
• M9: 5,485,455 km (0.053 R)
• M10: 6,309,889 km (0.112 R)
• M11: 7,343,759 km (0.114 R)
• M12: 8,108,504 km (0.069 R)
• M13: 9,379,039 km (0.082 R)
• M14: 10,169,514 km (0.091 R)
• M15: 12,063,871 km (0.095 R)
• M16: 13,581,093 km (0.101 R)
• M17: 14,660,591 km (0.104 R)
• M18: 17,142,570 km (0.064 R)
• M19: 17,843,585 km (0.089 R)
• M20: 18,241,216 km (0.12 R)
• M21: 20,665,151 km (0.102 R)
• M22: 22,273,178 km (0.083 R)
• M23: 25,534,711 km (0.061 R)
• M24: 25,938,176 km (0.115 R)
• M25: 26,965,465 km (0.119 R)
• M26: 30,097,895 km (0.116 R)
• M27: 33,224,640 km (0.079 R)
• M28: 35,675,801 km (0.097 R)
• M29: 38,244,845 km (0.094 R)
• M30: 44,470,809 km (0.097 R)
• M31: 45,496,303 km (0.091 R)
• M32: 45,940,609 km (0.092 R)
• M33: 49,913,030 km (0.064 R)
• M34: 52,630,625 km (0.1 R)
• M35: 55,445,160 km (0.101 R)
• M36: 57,318,873 km (0.098 R)

Asteroid Belt

Center: 8.05 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.1

Radius: 3.1

Gravity: 15.41 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 8.13 AU - 9.87 AU

Year: 17433 Days

Day: 20.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,671,676 km

• M1: 38,596 km (0.091 R)
• M2: 173,534 km (0.084 R)
• M3: 376,687 km (0.045 R)
• M4: 665,860 km (0.089 R)
• M5: 942,766 km (0.072 R)
• M6: 1,589,777 km (0.117 R)
• M7: 3,014,247 km (0.069 R)
• M8: 5,791,831 km (0.117 R)
• M9: 6,378,105 km (0.064 R)
• M10: 7,667,788 km (0.103 R)
• M11: 8,416,376 km (0.111 R)
• M12: 12,842,678 km (0.048 R)
• M13: 13,245,246 km (0.035 R)
• M14: 14,257,575 km (0.103 R)
• M15: 17,322,985 km (0.091 R)
• M16: 18,604,590 km (0.1 R)
• M17: 21,115,739 km (0.115 R)
• M18: 26,519,514 km (0.064 R)
• M19: 30,288,034 km (0.095 R)
• M20: 30,693,594 km (0.113 R)
• M21: 30,897,795 km (0.078 R)
• M22: 41,546,919 km (0.062 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 19,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit