🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.2

Radius: 9.8

Gravity: 9.81 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.7 AU - 1.14 AU

Year: 561 Days

Day: 14.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,606,535 km

• M1: 121,922 km (0.111 R)
• M2: 468,840 km (0.054 R)
• M3: 1,077,404 km (0.116 R)
• M4: 1,415,495 km (0.075 R)
• M5: 1,867,580 km (0.111 R)
• M6: 2,424,682 km (0.078 R)
• M7: 3,200,646 km (0.088 R)
• M8: 3,899,268 km (0.052 R)
• M9: 4,209,086 km (0.065 R)
• M10: 6,071,579 km (0.079 R)
• M11: 6,612,076 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.1

Radius: 8.3

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.08 AU - 1.38 AU

Year: 867 Days

Day: 10.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 80,606,535 km

• M1: 105,317 km (0.042 R)
• M2: 401,221 km (0.09 R)
• M3: 757,863 km (0.095 R)
• M4: 2,263,266 km (0.094 R)
• M5: 2,562,163 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893.8

Radius: 13

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.07 AU - 2.27 AU

Year: 2032 Days

Day: 12.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 155.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,606,535 km

• M1: 162,164 km (0.077 R)
• M2: 641,326 km (0.045 R)
• M3: 1,529,489 km (0.104 R)
• M4: 2,196,246 km (0.107 R)
• M5: 2,940,496 km (0.099 R)
• M6: 4,954,532 km (0.073 R)
• M7: 9,315,011 km (0.106 R)
• M8: 11,299,127 km (0.106 R)
• M9: 13,156,385 km (0.075 R)
• M10: 13,595,305 km (0.054 R)
• M11: 14,318,012 km (0.05 R)
• M12: 15,791,252 km (0.116 R)
• M13: 16,438,263 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.1

Radius: 8.1

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.74 AU - 3.74 AU

Year: 3708 Days

Day: 7.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,606,535 km

• M1: 145,409 km (0.11 R)
• M2: 412,142 km (0.11 R)
• M3: 669,151 km (0.111 R)
• M4: 1,224,608 km (0.107 R)
• M5: 2,370,677 km (0.097 R)
• M6: 2,912,222 km (0.109 R)
• M7: 3,947,439 km (0.069 R)
• M8: 4,628,259 km (0.079 R)
• M9: 5,407,065 km (0.059 R)
• M10: 8,062,876 km (0.096 R)
• M11: 8,842,581 km (0.116 R)
• M12: 11,227,320 km (0.072 R)
• M13: 11,631,683 km (0.057 R)
• M14: 12,122,065 km (0.027 R)
• M15: 12,547,671 km (0.07 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 20.1

Radius: 5.1

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 6.35 AU - 6.93 AU

Year: 10879 Days

Day: 15.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,606,535 km

• M1: 65,225 km (0.071 R)
• M2: 224,846 km (0.065 R)
• M3: 398,080 km (0.029 R)
• M4: 1,075,309 km (0.09 R)
• M5: 1,399,189 km (0.12 R)
• M6: 3,902,560 km (0.079 R)
• M7: 4,726,844 km (0.115 R)
• M8: 5,974,191 km (0.114 R)
• M9: 12,270,765 km (0.04 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 890.3

Radius: 4.7

Gravity: 40.3 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.99 AU - 7.21 AU

Year: 12029 Days

Day: 16.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 80,606,535 km

• M1: 58,792 km (0.113 R)
• M2: 333,753 km (0.095 R)
• M3: 1,888,374 km (0.077 R)
• M4: 4,437,522 km (0.105 R)
• M5: 4,692,586 km (0.066 R)
• M6: 6,273,686 km (0.089 R)
• M7: 7,270,756 km (0.037 R)
• M8: 8,273,660 km (0.051 R)
• M9: 9,211,339 km (0.099 R)
• M10: 11,710,521 km (0.118 R)
• M11: 12,446,244 km (0.091 R)
• M12: 13,874,305 km (0.095 R)
• M13: 19,307,101 km (0.091 R)
• M14: 20,418,913 km (0.075 R)
• M15: 21,123,967 km (0.111 R)
• M16: 21,663,268 km (0.067 R)
• M17: 22,119,691 km (0.113 R)
• M18: 24,302,174 km (0.057 R)
• M19: 32,767,170 km (0.088 R)
• M20: 33,489,428 km (0.089 R)
• M21: 35,974,099 km (0.091 R)
• M22: 41,306,515 km (0.094 R)
• M23: 45,634,980 km (0.098 R)
• M24: 46,686,653 km (0.092 R)
• M25: 47,754,483 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321.6

Radius: 4.1

Gravity: 19.13 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 8.41 AU - 9.43 AU

Year: 16939 Days

Day: 17 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 80,606,535 km

• M1: 79,137 km (0.091 R)
• M2: 263,591 km (0.051 R)
• M3: 486,941 km (0.1 R)
• M4: 1,249,741 km (0.074 R)
• M5: 1,657,245 km (0.034 R)
• M6: 1,951,504 km (0.108 R)
• M7: 2,129,675 km (0.101 R)
• M8: 2,357,513 km (0.091 R)
• M9: 2,580,713 km (0.03 R)
• M10: 3,140,209 km (0.071 R)
• M11: 3,997,255 km (0.118 R)
• M12: 8,058,987 km (0.087 R)
• M13: 10,476,937 km (0.046 R)
• M14: 11,762,432 km (0.049 R)
• M15: 13,338,146 km (0.079 R)
• M16: 13,979,921 km (0.116 R)
• M17: 16,533,856 km (0.053 R)
• M18: 17,124,169 km (0.108 R)
• M19: 18,979,631 km (0.094 R)
• M20: 21,050,365 km (0.111 R)
• M21: 23,358,660 km (0.107 R)
• M22: 24,668,838 km (0.085 R)
• M23: 29,747,537 km (0.077 R)
• M24: 30,730,095 km (0.052 R)
• M25: 30,951,351 km (0.079 R)
• M26: 40,565,108 km (0.086 R)
• M27: 45,681,355 km (0.095 R)
• M28: 51,991,094 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.4

Radius: 6.9

Gravity: 12.82 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 10.19 AU - 11.75 AU

Year: 23102 Days

Day: 21.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,606,535 km

• M1: 94,097 km (0.088 R)
• M2: 467,643 km (0.09 R)
• M3: 908,657 km (0.093 R)
• M4: 1,313,918 km (0.117 R)
• M5: 2,009,249 km (0.094 R)
• M6: 3,278,587 km (0.059 R)
• M7: 3,627,599 km (0.111 R)
• M8: 4,400,272 km (0.072 R)
• M9: 7,181,446 km (0.068 R)
• M10: 9,792,826 km (0.082 R)
• M11: 15,877,720 km (0.1 R)
• M12: 18,907,076 km (0.087 R)
• M13: 19,556,032 km (0.106 R)
• M14: 20,315,840 km (0.107 R)
• M15: 28,300,476 km (0.115 R)
• M16: 34,877,248 km (0.057 R)
• M17: 37,277,545 km (0.117 R)
• M18: 53,659,410 km (0.112 R)
• M19: 54,028,468 km (0.08 R)
• M20: 55,710,097 km (0.1 R)
• M21: 67,178,719 km (0.053 R)
• M22: 77,271,788 km (0.092 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 368 - 14,127 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit