🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561

Radius: 13.6

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.56 AU - 0.84 AU

Year: 404 Days

Day: 11.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,817,584 km

• M1: 171,439 km (0.117 R)
• M2: 632,051 km (0.104 R)
• M3: 1,290,282 km (0.09 R)
• M4: 1,819,858 km (0.07 R)
• M5: 2,422,588 km (0.076 R)
• M6: 3,009,161 km (0.115 R)
• M7: 4,229,132 km (0.083 R)
• M8: 4,778,306 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.3

Radius: 14.6

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.63 AU - 0.77 AU

Year: 404 Days

Day: 14.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,817,584 km

• M1: 181,612 km (0.114 R)
• M2: 669,151 km (0.113 R)
• M3: 1,331,421 km (0.05 R)
• M4: 1,842,597 km (0.032 R)
• M5: 2,300,965 km (0.106 R)
• M6: 3,141,106 km (0.085 R)
• M7: 3,615,033 km (0.093 R)
• M8: 4,402,516 km (0.112 R)
• M9: 5,532,728 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.1

Radius: 8.4

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.7 AU - 0.9 AU

Year: 494 Days

Day: 7.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,817,584 km

• M1: 104,569 km (0.093 R)
• M2: 378,632 km (0.113 R)
• M3: 822,339 km (0.072 R)
• M4: 1,188,555 km (0.092 R)
• M5: 1,597,256 km (0.038 R)
• M6: 2,372,323 km (0.05 R)
• M7: 3,982,146 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.8

Radius: 8.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.09 AU - 1.25 AU

Year: 874 Days

Day: 11.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 39,817,584 km

• M1: 100,829 km (0.112 R)
• M2: 381,175 km (0.051 R)
• M3: 684,410 km (0.093 R)
• M4: 1,004,849 km (0.117 R)
• M5: 1,472,791 km (0.077 R)
• M6: 1,852,620 km (0.058 R)
• M7: 2,353,324 km (0.091 R)
• M8: 2,756,490 km (0.094 R)
• M9: 3,887,151 km (0.117 R)
• M10: 4,334,897 km (0.107 R)
• M11: 4,770,078 km (0.082 R)
• M12: 6,049,439 km (0.079 R)
• M13: 6,345,642 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.2

Radius: 14.4

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.76 AU - 1.88 AU

Year: 1695 Days

Day: 8.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,817,584 km

• M1: 179,517 km (0.068 R)
• M2: 695,181 km (0.092 R)
• M3: 1,541,307 km (0.083 R)
• M4: 2,146,430 km (0.063 R)
• M5: 3,602,466 km (0.07 R)
• M6: 4,327,418 km (0.056 R)
• M7: 5,759,069 km (0.089 R)
• M8: 6,217,736 km (0.066 R)
• M9: 6,753,297 km (0.107 R)
• M10: 7,347,350 km (0.102 R)
• M11: 9,309,176 km (0.103 R)
• M12: 9,807,786 km (0.062 R)
• M13: 10,359,054 km (0.101 R)
• M14: 11,675,815 km (0.11 R)
• M15: 12,256,404 km (0.115 R)
• M16: 13,813,867 km (0.073 R)
• M17: 14,818,567 km (0.103 R)
• M18: 15,545,912 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.2

Radius: 13.1

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.32 AU - 3.7 AU

Year: 4539 Days

Day: 7 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,817,584 km

• M1: 163,062 km (0.065 R)
• M2: 980,315 km (0.061 R)
• M3: 1,528,741 km (0.114 R)
• M4: 3,386,896 km (0.1 R)
• M5: 4,226,140 km (0.116 R)
• M6: 4,929,848 km (0.103 R)
• M7: 6,412,214 km (0.113 R)
• M8: 9,308,877 km (0.088 R)
• M9: 11,843,364 km (0.12 R)
• M10: 14,584,596 km (0.052 R)
• M11: 17,978,373 km (0.106 R)
• M12: 18,820,459 km (0.109 R)
• M13: 27,537,228 km (0.092 R)
• M14: 29,006,578 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.8

Radius: 12.5

Gravity: 4.51 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.89 AU - 5.89 AU

Year: 7464 Days

Day: 9.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,817,584 km

• M1: 200,012 km (0.078 R)
• M2: 644,318 km (0.089 R)
• M3: 1,359,994 km (0.031 R)
• M4: 2,068,340 km (0.11 R)
• M5: 4,764,692 km (0.099 R)
• M6: 6,093,720 km (0.08 R)
• M7: 6,754,194 km (0.09 R)
• M8: 7,423,495 km (0.073 R)
• M9: 12,847,914 km (0.108 R)
• M10: 14,471,200 km (0.109 R)
• M11: 15,145,139 km (0.059 R)
• M12: 16,032,853 km (0.107 R)
• M13: 17,089,462 km (0.098 R)
• M14: 18,977,238 km (0.11 R)
• M15: 20,234,907 km (0.075 R)
• M16: 26,544,197 km (0.114 R)
• M17: 28,399,660 km (0.097 R)
• M18: 28,876,877 km (0.101 R)
• M19: 31,140,742 km (0.066 R)
• M20: 37,257,051 km (0.072 R)
• M21: 39,343,492 km (0.109 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: 431 - 10,506 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit