🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.2

Radius: 12.3

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.52 AU - 0.62 AU

Year: 297 Days

Day: 7 Hours

Environment

Temp: -144 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,004,601 km

• M1: 153,039 km (0.091 R)
• M2: 567,574 km (0.055 R)
• M3: 1,032,674 km (0.083 R)
• M4: 1,451,698 km (0.076 R)
• M5: 2,008,800 km (0.108 R)
• M6: 2,715,201 km (0.075 R)
• M7: 3,106,699 km (0.108 R)
• M8: 3,672,777 km (0.117 R)
• M9: 4,091,801 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434

Radius: 11.4

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.48 AU - 0.68 AU

Year: 305 Days

Day: 7.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,004,601 km

• M1: 143,464 km (0.118 R)
• M2: 536,608 km (0.044 R)
• M3: 987,496 km (0.098 R)
• M4: 1,393,055 km (0.073 R)
• M5: 1,751,043 km (0.103 R)
• M6: 2,247,858 km (0.05 R)
• M7: 2,720,736 km (0.032 R)
• M8: 3,229,519 km (0.08 R)
• M9: 3,723,341 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.8

Radius: 9.7

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.96 AU - 2.54 AU

Year: 2330 Days

Day: 7.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,004,601 km

• M1: 120,725 km (0.083 R)
• M2: 638,783 km (0.1 R)
• M3: 1,056,011 km (0.081 R)
• M4: 1,420,581 km (0.076 R)
• M5: 1,889,870 km (0.101 R)
• M6: 2,325,798 km (0.099 R)
• M7: 2,746,168 km (0.113 R)
• M8: 3,186,883 km (0.036 R)
• M9: 3,997,255 km (0.1 R)
• M10: 4,564,979 km (0.03 R)
• M11: 6,376,160 km (0.057 R)
• M12: 7,877,973 km (0.051 R)
• M13: 8,981,856 km (0.079 R)
• M14: 9,634,552 km (0.087 R)
• M15: 11,034,489 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886

Radius: 10.8

Gravity: 7.6 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.44 AU - 4.84 AU

Year: 5814 Days

Day: 5.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 80,004,601 km

• M1: 134,339 km (0.085 R)
• M2: 474,824 km (0.1 R)
• M3: 1,122,882 km (0.084 R)
• M4: 1,648,868 km (0.06 R)
• M5: 2,385,338 km (0.088 R)
• M6: 3,616,678 km (0.119 R)
• M7: 4,093,147 km (0.081 R)
• M8: 5,379,539 km (0.11 R)
• M9: 6,066,942 km (0.033 R)
• M10: 7,206,728 km (0.039 R)
• M11: 7,963,843 km (0.107 R)
• M12: 8,607,113 km (0.112 R)
• M13: 9,026,436 km (0.089 R)
• M14: 10,460,930 km (0.087 R)
• M15: 12,889,801 km (0.119 R)
• M16: 13,328,273 km (0.08 R)
• M17: 13,833,614 km (0.112 R)
• M18: 14,468,358 km (0.095 R)
• M19: 15,610,687 km (0.109 R)
• M20: 16,876,884 km (0.118 R)
• M21: 18,762,864 km (0.035 R)
• M22: 21,085,969 km (0.043 R)
• M23: 22,869,774 km (0.105 R)
• M24: 24,920,612 km (0.074 R)
• M25: 27,720,785 km (0.045 R)
• M26: 35,948,967 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.9

Radius: 14

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.5 AU - 5.54 AU

Year: 6633 Days

Day: 8.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,004,601 km

• M1: 175,927 km (0.108 R)
• M2: 692,040 km (0.104 R)
• M3: 1,697,188 km (0.091 R)
• M4: 2,548,699 km (0.04 R)
• M5: 3,033,546 km (0.053 R)
• M6: 3,692,674 km (0.119 R)
• M7: 4,497,959 km (0.118 R)
• M8: 5,155,143 km (0.114 R)
• M9: 7,010,755 km (0.12 R)
• M10: 13,048,525 km (0.098 R)
• M11: 15,453,161 km (0.098 R)
• M12: 17,671,847 km (0.06 R)
• M13: 19,170,967 km (0.087 R)
• M14: 22,034,270 km (0.108 R)
• M15: 25,850,512 km (0.049 R)
• M16: 26,367,522 km (0.106 R)
• M17: 30,181,819 km (0.08 R)
• M18: 30,659,036 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.9

Radius: 5.6

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 6.59 AU - 7.79 AU

Year: 13308 Days

Day: 24.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,004,601 km

• M1: 70,760 km (0.108 R)
• M2: 285,882 km (0.069 R)
• M3: 692,189 km (0.118 R)
• M4: 1,113,307 km (0.095 R)
• M5: 1,971,999 km (0.114 R)
• M6: 2,608,688 km (0.116 R)
• M7: 3,289,208 km (0.052 R)
• M8: 3,636,874 km (0.03 R)
• M9: 4,228,982 km (0.109 R)
• M10: 6,725,621 km (0.091 R)
• M11: 8,986,494 km (0.114 R)
• M12: 9,279,556 km (0.117 R)
• M13: 10,197,040 km (0.114 R)
• M14: 11,269,507 km (0.045 R)
• M15: 12,008,371 km (0.103 R)
• M16: 13,364,625 km (0.114 R)
• M17: 14,877,807 km (0.076 R)
• M18: 16,877,931 km (0.099 R)
• M19: 20,239,545 km (0.068 R)
• M20: 21,850,415 km (0.104 R)
• M21: 26,933,002 km (0.103 R)
• M22: 30,444,513 km (0.077 R)
• M23: 32,849,149 km (0.106 R)
• M24: 33,046,768 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 561.3

Radius: 4.4

Gravity: 28.99 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 9.97 AU - 11.23 AU

Year: 23822 Days

Day: 23.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,004,601 km

• M1: 54,902 km (0.115 R)
• M2: 941,270 km (0.073 R)
• M3: 1,118,992 km (0.109 R)
• M4: 2,436,501 km (0.045 R)
• M5: 3,006,917 km (0.118 R)
• M6: 4,441,710 km (0.115 R)
• M7: 5,365,776 km (0.095 R)
• M8: 7,635,475 km (0.093 R)
• M9: 8,515,260 km (0.094 R)
• M10: 12,160,661 km (0.107 R)
• M11: 13,211,736 km (0.103 R)
• M12: 13,429,102 km (0.114 R)
• M13: 14,020,163 km (0.076 R)
• M14: 15,493,103 km (0.1 R)
• M15: 25,639,729 km (0.105 R)
• M16: 27,595,272 km (0.116 R)
• M17: 28,428,532 km (0.117 R)
• M18: 29,278,398 km (0.083 R)
• M19: 33,514,411 km (0.083 R)
• M20: 45,604,013 km (0.041 R)
• M21: 49,501,337 km (0.088 R)
• M22: 50,201,006 km (0.038 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 424 - 16,808 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit