🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.8

Radius: 13.5

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.39 AU - 0.63 AU

Year: 251 Days

Day: 9.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,918,665 km

• M1: 167,849 km (0.07 R)
• M2: 607,367 km (0.113 R)
• M3: 1,221,167 km (0.086 R)
• M4: 1,657,544 km (0.097 R)
• M5: 2,215,544 km (0.087 R)
• M6: 2,778,032 km (0.057 R)
• M7: 3,259,139 km (0.114 R)
• M8: 3,773,307 km (0.075 R)
• M9: 4,206,543 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832

Radius: 12

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.6 AU - 0.64 AU

Year: 337 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 33,918,665 km

• M1: 149,448 km (0.09 R)
• M2: 553,063 km (0.074 R)
• M3: 1,055,114 km (0.095 R)
• M4: 1,566,888 km (0.086 R)
• M5: 2,125,636 km (0.028 R)
• M6: 2,591,484 km (0.088 R)
• M7: 3,061,371 km (0.06 R)
• M8: 3,854,988 km (0.105 R)
• M9: 4,388,454 km (0.083 R)
• M10: 4,911,896 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.2

Radius: 14.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.63 AU - 0.95 AU

Year: 485 Days

Day: 7.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 33,918,665 km

• M1: 184,305 km (0.119 R)
• M2: 659,128 km (0.092 R)
• M3: 1,130,661 km (0.076 R)
• M4: 1,920,238 km (0.117 R)
• M5: 2,485,269 km (0.058 R)
• M6: 2,992,257 km (0.093 R)
• M7: 3,606,505 km (0.118 R)
• M8: 5,742,464 km (0.075 R)
• M9: 6,299,716 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.4

Radius: 8.2

Gravity: 11.23 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.63 AU - 0.95 AU

Year: 485 Days

Day: 12.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 138.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,918,665 km

• M1: 102,026 km (0.112 R)
• M2: 375,191 km (0.069 R)
• M3: 673,041 km (0.107 R)
• M4: 1,018,612 km (0.104 R)
• M5: 1,392,906 km (0.102 R)
• M6: 1,777,223 km (0.085 R)
• M7: 2,157,949 km (0.075 R)
• M8: 2,531,196 km (0.052 R)
• M9: 3,072,291 km (0.055 R)
• M10: 3,662,455 km (0.12 R)
• M11: 3,970,926 km (0.051 R)
• M12: 4,325,772 km (0.077 R)
• M13: 5,099,492 km (0.092 R)
• M14: 5,399,586 km (0.061 R)
• M15: 5,818,160 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.9

Radius: 14.5

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.75 AU - 0.89 AU

Year: 513 Days

Day: 6.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 33,918,665 km

• M1: 180,565 km (0.09 R)
• M2: 712,535 km (0.102 R)
• M3: 1,352,215 km (0.089 R)
• M4: 1,895,854 km (0.087 R)
• M5: 2,620,805 km (0.115 R)
• M6: 4,153,435 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.1

Radius: 10.6

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.78 AU - 1.9 AU

Year: 1723 Days

Day: 12.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,918,665 km

• M1: 132,095 km (0.094 R)
• M2: 542,741 km (0.081 R)
• M3: 1,031,029 km (0.059 R)
• M4: 1,439,281 km (0.116 R)
• M5: 1,822,551 km (0.111 R)
• M6: 2,157,201 km (0.111 R)
• M7: 2,521,622 km (0.051 R)
• M8: 2,953,212 km (0.111 R)
• M9: 3,305,515 km (0.088 R)
• M10: 3,918,716 km (0.102 R)
• M11: 4,294,955 km (0.107 R)
• M12: 4,767,535 km (0.106 R)
• M13: 6,221,027 km (0.115 R)
• M14: 7,621,264 km (0.097 R)
• M15: 8,131,841 km (0.119 R)
• M16: 8,637,781 km (0.117 R)
• M17: 10,130,618 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.4

Radius: 12.4

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.58 AU - 4.1 AU

Year: 4213 Days

Day: 10.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,918,665 km

• M1: 154,235 km (0.086 R)
• M2: 556,205 km (0.119 R)
• M3: 1,152,652 km (0.117 R)
• M4: 1,738,178 km (0.067 R)
• M5: 2,194,451 km (0.096 R)
• M6: 2,582,358 km (0.077 R)
• M7: 3,121,210 km (0.097 R)
• M8: 4,312,009 km (0.053 R)
• M9: 5,878,448 km (0.062 R)
• M10: 6,662,341 km (0.098 R)
• M11: 7,967,732 km (0.112 R)
• M12: 9,632,607 km (0.11 R)
• M13: 10,099,801 km (0.067 R)
• M14: 10,582,105 km (0.119 R)
• M15: 11,481,487 km (0.09 R)
• M16: 12,007,174 km (0.102 R)
• M17: 13,187,651 km (0.09 R)
• M18: 13,806,238 km (0.054 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.3

Radius: 10.9

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 4.06 AU - 5.72 AU

Year: 7464 Days

Day: 9.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 33,918,665 km

• M1: 143,315 km (0.078 R)
• M2: 596,896 km (0.102 R)
• M3: 1,243,458 km (0.083 R)
• M4: 2,350,482 km (0.119 R)
• M5: 2,985,226 km (0.084 R)
• M6: 3,568,059 km (0.119 R)
• M7: 4,022,388 km (0.113 R)
• M8: 5,284,994 km (0.113 R)
• M9: 7,084,357 km (0.091 R)
• M10: 7,766,074 km (0.063 R)
• M11: 8,999,060 km (0.087 R)
• M12: 9,572,169 km (0.089 R)
• M13: 11,489,416 km (0.085 R)
• M14: 12,646,705 km (0.115 R)
• M15: 13,536,214 km (0.058 R)
• M16: 14,407,322 km (0.079 R)
• M17: 18,831,530 km (0.104 R)
• M18: 21,119,928 km (0.039 R)
• M19: 21,974,730 km (0.051 R)
• M20: 22,852,421 km (0.096 R)
• M21: 23,422,987 km (0.056 R)
• M22: 25,365,067 km (0.059 R)
• M23: 25,976,773 km (0.107 R)
• M24: 30,735,032 km (0.062 R)
• M25: 31,530,743 km (0.095 R)
• M26: 35,825,249 km (0.05 R)
• M27: 36,928,982 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.5

Radius: 3

Gravity: 20.61 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.11 AU - 7.89 AU

Year: 11439 Days

Day: 19.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,918,665 km

• M1: 37,848 km (0.088 R)
• M2: 168,447 km (0.11 R)
• M3: 284,685 km (0.081 R)
• M4: 413,040 km (0.119 R)
• M5: 742,005 km (0.089 R)
• M6: 1,392,607 km (0.076 R)
• M7: 1,591,871 km (0.095 R)
• M8: 2,047,097 km (0.092 R)
• M9: 7,174,265 km (0.102 R)
• M10: 8,388,850 km (0.074 R)
• M11: 13,217,720 km (0.066 R)
• M12: 22,425,319 km (0.096 R)
• M13: 29,454,774 km (0.079 R)
• M14: 33,312,454 km (0.103 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 20,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit