🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.3

Radius: 9.7

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.65 AU - 0.97 AU

Year: 494 Days

Day: 10.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,453,380 km

• M1: 120,576 km (0.049 R)
• M2: 532,419 km (0.091 R)
• M3: 874,998 km (0.1 R)
• M4: 1,192,594 km (0.066 R)
• M5: 1,629,121 km (0.04 R)
• M6: 2,888,436 km (0.103 R)
• M7: 3,404,100 km (0.101 R)
• M8: 4,056,645 km (0.114 R)
• M9: 4,634,093 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.9

Radius: 14.8

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.92 AU - 1.52 AU

Year: 914 Days

Day: 5.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 31,453,380 km

• M1: 184,005 km (0.047 R)
• M2: 753,076 km (0.11 R)
• M3: 1,219,522 km (0.092 R)
• M4: 1,882,240 km (0.102 R)
• M5: 2,421,242 km (0.104 R)
• M6: 3,377,621 km (0.099 R)
• M7: 4,272,964 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.4

Radius: 13.1

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.76 AU - 2.4 AU

Year: 2035 Days

Day: 10.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,453,380 km

• M1: 162,912 km (0.111 R)
• M2: 724,353 km (0.039 R)
• M3: 1,378,694 km (0.115 R)
• M4: 1,841,400 km (0.114 R)
• M5: 2,317,421 km (0.105 R)
• M6: 3,454,215 km (0.04 R)
• M7: 4,467,441 km (0.038 R)
• M8: 5,066,281 km (0.106 R)
• M9: 5,964,318 km (0.119 R)
• M10: 6,584,401 km (0.038 R)
• M11: 8,199,908 km (0.032 R)
• M12: 8,967,944 km (0.096 R)
• M13: 10,030,238 km (0.054 R)
• M14: 10,463,473 km (0.12 R)
• M15: 11,406,090 km (0.09 R)
• M16: 13,201,862 km (0.089 R)
• M17: 15,321,066 km (0.037 R)
• M18: 16,536,399 km (0.059 R)
• M19: 17,295,907 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.2

Radius: 13

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.88 AU - 3.52 AU

Year: 3883 Days

Day: 5.7 Hours

Environment

Temp: -215 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,453,380 km

• M1: 161,715 km (0.078 R)
• M2: 614,249 km (0.083 R)
• M3: 1,169,556 km (0.109 R)
• M4: 2,017,776 km (0.095 R)
• M5: 2,978,494 km (0.055 R)
• M6: 3,822,375 km (0.072 R)
• M7: 4,446,797 km (0.055 R)
• M8: 4,989,837 km (0.115 R)
• M9: 6,411,316 km (0.086 R)
• M10: 7,106,198 km (0.116 R)
• M11: 8,899,577 km (0.083 R)
• M12: 9,649,212 km (0.11 R)
• M13: 10,977,791 km (0.051 R)
• M14: 11,796,241 km (0.041 R)
• M15: 13,554,764 km (0.108 R)
• M16: 14,345,389 km (0.099 R)
• M17: 18,111,365 km (0.046 R)
• M18: 18,767,352 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251

Radius: 11.2

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.06 AU - 3.52 AU

Year: 4047 Days

Day: 10.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,453,380 km

• M1: 139,276 km (0.097 R)
• M2: 814,860 km (0.096 R)
• M3: 1,169,556 km (0.107 R)
• M4: 2,012,241 km (0.113 R)
• M5: 2,524,165 km (0.091 R)
• M6: 2,881,405 km (0.109 R)
• M7: 3,323,915 km (0.088 R)
• M8: 6,611,478 km (0.089 R)
• M9: 8,061,380 km (0.034 R)
• M10: 9,185,160 km (0.103 R)
• M11: 10,485,913 km (0.096 R)
• M12: 11,988,175 km (0.113 R)
• M13: 13,051,816 km (0.104 R)
• M14: 14,363,340 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.5

Radius: 14.4

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.43 AU - 4.21 AU

Year: 5064 Days

Day: 8.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,453,380 km

• M1: 179,069 km (0.065 R)
• M2: 688,001 km (0.062 R)
• M3: 1,185,862 km (0.12 R)
• M4: 1,799,513 km (0.11 R)
• M5: 2,924,489 km (0.112 R)
• M6: 3,996,208 km (0.069 R)
• M7: 4,956,177 km (0.119 R)
• M8: 6,136,355 km (0.112 R)
• M9: 8,350,852 km (0.101 R)
• M10: 9,655,196 km (0.106 R)
• M11: 12,011,662 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 657.4

Radius: 11.9

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.16 AU - 4.84 AU

Year: 5426 Days

Day: 6.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,453,380 km

• M1: 151,842 km (0.068 R)
• M2: 533,915 km (0.071 R)
• M3: 1,036,264 km (0.063 R)
• M4: 1,548,488 km (0.101 R)
• M5: 1,990,699 km (0.119 R)
• M6: 3,899,119 km (0.092 R)
• M7: 5,328,078 km (0.065 R)
• M8: 7,114,875 km (0.095 R)
• M9: 8,239,701 km (0.099 R)
• M10: 9,395,793 km (0.081 R)
• M11: 10,166,073 km (0.085 R)
• M12: 10,793,935 km (0.082 R)
• M13: 12,127,151 km (0.106 R)
• M14: 14,439,934 km (0.047 R)
• M15: 15,818,479 km (0.109 R)
• M16: 17,094,997 km (0.112 R)
• M17: 18,504,658 km (0.1 R)
• M18: 20,199,153 km (0.095 R)
• M19: 24,129,837 km (0.058 R)
• M20: 25,491,477 km (0.108 R)
• M21: 27,758,483 km (0.038 R)
• M22: 29,793,164 km (0.109 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 16,468 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit