🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.79 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.3

Radius: 8.9

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.55 AU - 1.61 AU

Year: 1371 Days

Day: 5.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 31,592,485 km

• M1: 110,702 km (0.092 R)
• M2: 422,913 km (0.09 R)
• M3: 766,539 km (0.106 R)
• M4: 1,052,271 km (0.081 R)
• M5: 1,335,759 km (0.043 R)
• M6: 1,983,668 km (0.077 R)
• M7: 2,281,068 km (0.094 R)
• M8: 3,111,636 km (0.087 R)
• M9: 3,633,433 km (0.102 R)
• M10: 4,050,213 km (0.046 R)
• M11: 4,833,806 km (0.032 R)
• M12: 5,223,509 km (0.071 R)
• M13: 6,587,093 km (0.03 R)
• M14: 7,090,341 km (0.084 R)
• M15: 8,251,370 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.3

Radius: 10.7

Gravity: 7.27 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.65 AU - 2.79 AU

Year: 3096 Days

Day: 9.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 31,592,485 km

• M1: 133,142 km (0.117 R)
• M2: 700,716 km (0.085 R)
• M3: 1,183,319 km (0.067 R)
• M4: 1,845,290 km (0.098 R)
• M5: 2,458,342 km (0.107 R)
• M6: 2,888,436 km (0.067 R)
• M7: 3,501,338 km (0.115 R)
• M8: 3,839,280 km (0.068 R)
• M9: 4,721,907 km (0.097 R)
• M10: 5,211,391 km (0.108 R)
• M11: 5,898,195 km (0.066 R)
• M12: 6,886,140 km (0.096 R)
• M13: 9,151,201 km (0.062 R)
• M14: 10,472,749 km (0.074 R)
• M15: 12,503,540 km (0.111 R)
• M16: 14,077,908 km (0.12 R)
• M17: 15,514,047 km (0.119 R)
• M18: 17,045,630 km (0.075 R)
• M19: 18,082,044 km (0.11 R)
• M20: 19,037,975 km (0.103 R)
• M21: 22,582,247 km (0.092 R)
• M22: 23,201,433 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.3

Radius: 8.7

Gravity: 13.06 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.75 AU - 3.25 AU

Year: 3587 Days

Day: 10.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 31,592,485 km

• M1: 109,057 km (0.115 R)
• M2: 439,519 km (0.117 R)
• M3: 712,385 km (0.062 R)
• M4: 1,197,531 km (0.091 R)
• M5: 1,521,560 km (0.095 R)
• M6: 3,138,863 km (0.105 R)
• M7: 3,411,280 km (0.095 R)
• M8: 4,325,473 km (0.108 R)
• M9: 4,713,679 km (0.107 R)
• M10: 5,644,776 km (0.113 R)
• M11: 6,630,178 km (0.059 R)
• M12: 7,902,208 km (0.082 R)
• M13: 8,596,043 km (0.109 R)
• M14: 9,651,007 km (0.04 R)
• M15: 11,922,053 km (0.112 R)
• M16: 12,444,598 km (0.087 R)
• M17: 12,785,083 km (0.072 R)
• M18: 14,262,063 km (0.057 R)
• M19: 14,635,010 km (0.098 R)
• M20: 15,014,390 km (0.115 R)
• M21: 17,010,774 km (0.059 R)
• M22: 17,673,193 km (0.064 R)
• M23: 18,103,586 km (0.082 R)
• M24: 18,478,030 km (0.094 R)
• M25: 20,227,427 km (0.11 R)
• M26: 24,505,178 km (0.11 R)
• M27: 25,505,689 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301

Radius: 13.1

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.92 AU - 4.08 AU

Year: 5522 Days

Day: 14.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,592,485 km

• M1: 162,912 km (0.073 R)
• M2: 680,820 km (0.109 R)
• M3: 1,842,148 km (0.049 R)
• M4: 3,491,016 km (0.111 R)
• M5: 4,819,146 km (0.075 R)
• M6: 5,295,316 km (0.092 R)
• M7: 6,580,062 km (0.06 R)
• M8: 7,392,977 km (0.025 R)
• M9: 7,823,969 km (0.081 R)
• M10: 8,664,110 km (0.058 R)
• M11: 11,769,912 km (0.03 R)
• M12: 12,591,054 km (0.105 R)
• M13: 14,296,919 km (0.078 R)
• M14: 16,373,786 km (0.102 R)
• M15: 16,880,474 km (0.098 R)
• M16: 20,659,466 km (0.084 R)
• M17: 22,469,002 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.3

Radius: 8.3

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.39 AU - 4.73 AU

Year: 5647 Days

Day: 13.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 119.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,592,485 km

• M1: 147,354 km (0.104 R)
• M2: 565,181 km (0.088 R)
• M3: 1,206,058 km (0.113 R)
• M4: 1,532,481 km (0.054 R)
• M5: 1,950,607 km (0.066 R)
• M6: 2,328,491 km (0.109 R)
• M7: 3,232,062 km (0.114 R)
• M8: 3,524,227 km (0.06 R)
• M9: 4,469,087 km (0.116 R)
• M10: 9,275,966 km (0.117 R)
• M11: 9,902,631 km (0.097 R)
• M12: 12,496,509 km (0.117 R)
• M13: 13,759,414 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449

Radius: 9.1

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 4.38 AU - 4.86 AU

Year: 6854 Days

Day: 8.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,592,485 km

• M1: 114,293 km (0.098 R)
• M2: 686,654 km (0.082 R)
• M3: 1,380,938 km (0.076 R)
• M4: 3,091,889 km (0.092 R)
• M5: 5,220,666 km (0.099 R)
• M6: 5,777,919 km (0.086 R)
• M7: 7,543,323 km (0.072 R)
• M8: 7,912,830 km (0.038 R)
• M9: 8,294,454 km (0.112 R)
• M10: 10,755,788 km (0.118 R)
• M11: 11,805,067 km (0.079 R)
• M12: 12,661,365 km (0.109 R)
• M13: 13,721,266 km (0.099 R)
• M14: 15,716,752 km (0.045 R)
• M15: 17,963,413 km (0.079 R)
• M16: 20,062,720 km (0.12 R)
• M17: 21,722,359 km (0.111 R)
• M18: 28,207,875 km (0.099 R)
• M19: 31,411,364 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 167

Radius: 7.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 5.52 AU - 7.02 AU

Year: 10837 Days

Day: 21.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,592,485 km

• M1: 102,026 km (0.117 R)
• M2: 472,729 km (0.06 R)
• M3: 742,454 km (0.077 R)
• M4: 1,206,058 km (0.031 R)
• M5: 1,444,966 km (0.084 R)
• M6: 1,690,007 km (0.093 R)
• M7: 2,035,728 km (0.076 R)
• M8: 2,444,878 km (0.106 R)
• M9: 3,621,615 km (0.11 R)
• M10: 4,199,511 km (0.056 R)
• M11: 4,810,469 km (0.108 R)
• M12: 5,221,414 km (0.116 R)
• M13: 5,655,697 km (0.119 R)
• M14: 6,696,001 km (0.118 R)
• M15: 8,083,521 km (0.118 R)
• M16: 11,415,664 km (0.073 R)
• M17: 17,716,876 km (0.107 R)
• M18: 20,059,130 km (0.073 R)
• M19: 20,835,991 km (0.029 R)
• M20: 22,449,704 km (0.07 R)
• M21: 23,056,473 km (0.096 R)
• M22: 25,593,952 km (0.075 R)
• M23: 25,923,665 km (0.099 R)
• M24: 29,468,686 km (0.101 R)
• M25: 30,196,181 km (0.102 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 11,054 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit