🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.5

Radius: 14.2

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.85 AU - 0.95 AU

Year: 589 Days

Day: 14.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 131.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,514,553 km

• M1: 176,675 km (0.107 R)
• M2: 765,044 km (0.067 R)
• M3: 1,282,802 km (0.057 R)
• M4: 2,478,388 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.8

Radius: 13.4

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.06 AU - 1.34 AU

Year: 907 Days

Day: 12.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,514,553 km

• M1: 166,652 km (0.114 R)
• M2: 596,148 km (0.089 R)
• M3: 1,032,824 km (0.114 R)
• M4: 1,515,875 km (0.112 R)
• M5: 2,052,034 km (0.098 R)
• M6: 2,482,427 km (0.116 R)
• M7: 2,922,993 km (0.054 R)
• M8: 4,746,740 km (0.103 R)
• M9: 7,646,246 km (0.065 R)
• M10: 8,354,143 km (0.05 R)
• M11: 9,216,276 km (0.088 R)

Asteroid Belt

Center: 1.48 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.5

Radius: 14

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 1.36 AU - 2.16 AU

Year: 1612 Days

Day: 8.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,514,553 km

• M1: 174,132 km (0.091 R)
• M2: 722,857 km (0.083 R)
• M3: 1,392,307 km (0.107 R)
• M4: 2,516,236 km (0.116 R)
• M5: 3,066,008 km (0.104 R)
• M6: 3,680,856 km (0.029 R)
• M7: 5,605,432 km (0.085 R)
• M8: 6,203,824 km (0.067 R)
• M9: 8,053,153 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.6

Radius: 11

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.2 AU - 2.88 AU

Year: 2794 Days

Day: 13.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,514,553 km

• M1: 136,732 km (0.072 R)
• M2: 499,058 km (0.115 R)
• M3: 863,778 km (0.083 R)
• M4: 1,533,677 km (0.1 R)
• M5: 2,154,808 km (0.106 R)
• M6: 2,733,003 km (0.108 R)
• M7: 3,288,760 km (0.092 R)
• M8: 4,346,716 km (0.119 R)
• M9: 4,760,952 km (0.111 R)
• M10: 5,153,796 km (0.076 R)
• M11: 7,035,139 km (0.059 R)
• M12: 7,858,376 km (0.058 R)
• M13: 8,609,357 km (0.057 R)
• M14: 9,336,254 km (0.079 R)
• M15: 11,191,267 km (0.034 R)
• M16: 13,370,609 km (0.064 R)
• M17: 15,366,843 km (0.054 R)
• M18: 16,436,168 km (0.056 R)
• M19: 19,705,630 km (0.07 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.6

Radius: 5.2

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.6 AU - 8.92 AU

Year: 13503 Days

Day: 20.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,514,553 km

• M1: 67,020 km (0.111 R)
• M2: 244,742 km (0.077 R)
• M3: 539,600 km (0.039 R)
• M4: 1,031,926 km (0.059 R)
• M5: 1,270,086 km (0.1 R)
• M6: 1,653,655 km (0.113 R)
• M7: 1,949,859 km (0.094 R)
• M8: 2,316,074 km (0.103 R)
• M9: 2,572,036 km (0.081 R)
• M10: 3,363,110 km (0.059 R)
• M11: 5,602,291 km (0.12 R)
• M12: 5,896,550 km (0.057 R)
• M13: 6,098,357 km (0.047 R)
• M14: 6,695,402 km (0.05 R)
• M15: 7,102,009 km (0.103 R)
• M16: 8,294,753 km (0.069 R)
• M17: 8,677,125 km (0.113 R)
• M18: 9,615,104 km (0.041 R)
• M19: 9,848,028 km (0.087 R)
• M20: 10,471,253 km (0.037 R)
• M21: 12,664,806 km (0.089 R)
• M22: 20,123,756 km (0.089 R)
• M23: 21,203,553 km (0.033 R)
• M24: 22,078,701 km (0.113 R)
• M25: 24,500,990 km (0.099 R)
• M26: 25,023,385 km (0.08 R)
• M27: 29,375,187 km (0.101 R)
• M28: 33,561,385 km (0.095 R)
• M29: 36,299,624 km (0.045 R)
• M30: 36,751,260 km (0.113 R)
• M31: 39,539,316 km (0.078 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 622.3

Radius: 6.9

Gravity: 13.07 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.29 AU - 9.23 AU

Year: 14921 Days

Day: 19.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,514,553 km

• M1: 86,916 km (0.08 R)
• M2: 302,636 km (0.073 R)
• M3: 599,738 km (0.108 R)
• M4: 975,977 km (0.056 R)
• M5: 2,183,082 km (0.025 R)
• M6: 3,102,510 km (0.118 R)
• M7: 3,844,815 km (0.117 R)
• M8: 4,107,060 km (0.109 R)
• M9: 4,602,678 km (0.066 R)
• M10: 6,822,112 km (0.119 R)
• M11: 7,077,475 km (0.041 R)
• M12: 7,743,635 km (0.11 R)
• M13: 8,162,808 km (0.114 R)
• M14: 13,490,437 km (0.109 R)
• M15: 15,732,011 km (0.086 R)
• M16: 15,954,164 km (0.104 R)
• M17: 17,096,194 km (0.118 R)
• M18: 21,387,110 km (0.085 R)
• M19: 22,119,392 km (0.117 R)
• M20: 26,344,783 km (0.076 R)
• M21: 31,781,170 km (0.03 R)
• M22: 35,963,777 km (0.115 R)
• M23: 44,067,194 km (0.12 R)
• M24: 47,684,620 km (0.052 R)
• M25: 57,759,289 km (0.088 R)
• M26: 58,465,391 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 789.3

Radius: 7.8

Gravity: 12.97 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 9.3 AU - 9.98 AU

Year: 20660 Days

Day: 21.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,514,553 km

• M1: 97,388 km (0.106 R)
• M2: 436,826 km (0.033 R)
• M3: 929,003 km (0.05 R)
• M4: 1,180,776 km (0.112 R)
• M5: 3,130,635 km (0.082 R)
• M6: 3,678,312 km (0.058 R)
• M7: 4,187,693 km (0.12 R)
• M8: 4,494,369 km (0.1 R)
• M9: 5,152,899 km (0.074 R)
• M10: 6,660,995 km (0.085 R)
• M11: 7,466,879 km (0.039 R)
• M12: 8,496,112 km (0.107 R)
• M13: 8,767,632 km (0.088 R)
• M14: 9,101,086 km (0.098 R)
• M15: 11,024,615 km (0.044 R)
• M16: 11,945,839 km (0.084 R)
• M17: 12,846,268 km (0.027 R)
• M18: 17,595,402 km (0.111 R)
• M19: 22,663,329 km (0.117 R)
• M20: 31,380,996 km (0.04 R)
• M21: 32,161,897 km (0.113 R)
• M22: 40,086,844 km (0.104 R)
• M23: 48,699,044 km (0.076 R)
• M24: 51,343,036 km (0.112 R)
• M25: 53,341,814 km (0.095 R)
• M26: 55,203,409 km (0.058 R)
• M27: 68,588,081 km (0.065 R)
• M28: 73,489,056 km (0.079 R)
• M29: 74,174,963 km (0.036 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 484 - 12,494 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit