🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.6 AU - 0.7 AU

Year: 344 Days

Day: 25.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 4.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,998,290 km

• M1: 290,369 km (0.077 R)

Asteroid Belt

Center: 1.05 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.6

Radius: 9.9

Gravity: 9.34 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.32 AU - 1.58 AU

Year: 1145 Days

Day: 11.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,998,290 km

• M1: 123,119 km (0.118 R)
• M2: 436,377 km (0.065 R)
• M3: 752,776 km (0.06 R)
• M4: 1,096,552 km (0.119 R)
• M5: 1,436,289 km (0.101 R)
• M6: 2,141,194 km (0.061 R)
• M7: 2,454,901 km (0.118 R)
• M8: 2,786,410 km (0.118 R)
• M9: 3,572,098 km (0.096 R)
• M10: 4,316,198 km (0.099 R)
• M11: 4,630,054 km (0.119 R)
• M12: 5,387,468 km (0.081 R)
• M13: 6,603,250 km (0.098 R)
• M14: 7,147,786 km (0.081 R)
• M15: 8,962,708 km (0.117 R)
• M16: 9,537,762 km (0.095 R)
• M17: 10,396,902 km (0.112 R)
• M18: 11,203,235 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.9

Radius: 11.1

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.58 AU - 2.6 AU

Year: 2734 Days

Day: 8.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 54,998,290 km

• M1: 138,079 km (0.097 R)
• M2: 780,602 km (0.077 R)
• M3: 1,627,176 km (0.092 R)
• M4: 3,112,683 km (0.04 R)
• M5: 3,707,933 km (0.103 R)
• M6: 4,565,877 km (0.085 R)
• M7: 8,144,856 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.3

Radius: 14.6

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 3.61 AU - 4.53 AU

Year: 5386 Days

Day: 8.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 54,998,290 km

• M1: 190,737 km (0.111 R)
• M2: 667,207 km (0.114 R)
• M3: 1,369,718 km (0.08 R)
• M4: 2,122,046 km (0.03 R)
• M5: 3,654,526 km (0.099 R)
• M6: 4,134,287 km (0.12 R)
• M7: 4,806,580 km (0.067 R)
• M8: 5,412,451 km (0.106 R)
• M9: 6,009,945 km (0.106 R)
• M10: 6,494,642 km (0.089 R)
• M11: 8,815,952 km (0.101 R)
• M12: 9,809,731 km (0.092 R)
• M13: 11,279,679 km (0.09 R)
• M14: 12,020,339 km (0.112 R)
• M15: 12,991,677 km (0.1 R)
• M16: 16,512,314 km (0.08 R)
• M17: 16,985,641 km (0.112 R)
• M18: 18,021,756 km (0.041 R)
• M19: 18,970,506 km (0.062 R)
• M20: 21,036,602 km (0.089 R)
• M21: 27,056,121 km (0.07 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.3

Radius: 11.4

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 3.81 AU - 5.37 AU

Year: 6451 Days

Day: 14.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,998,290 km

• M1: 141,819 km (0.053 R)
• M2: 652,097 km (0.106 R)
• M3: 2,127,731 km (0.1 R)
• M4: 3,813,699 km (0.105 R)
• M5: 4,245,288 km (0.076 R)
• M6: 6,389,325 km (0.07 R)
• M7: 8,244,039 km (0.079 R)
• M8: 9,139,832 km (0.098 R)
• M9: 14,712,801 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.6

Radius: 15

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.39 AU - 4.95 AU

Year: 6620 Days

Day: 13.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 54,998,290 km

• M1: 186,848 km (0.051 R)
• M2: 725,400 km (0.071 R)
• M3: 1,309,729 km (0.042 R)
• M4: 2,058,915 km (0.11 R)
• M5: 2,906,238 km (0.07 R)
• M6: 3,743,836 km (0.095 R)
• M7: 4,616,590 km (0.101 R)
• M8: 5,324,188 km (0.093 R)
• M9: 5,987,505 km (0.097 R)
• M10: 7,683,646 km (0.1 R)
• M11: 8,314,949 km (0.1 R)
• M12: 9,018,657 km (0.067 R)
• M13: 9,964,116 km (0.089 R)
• M14: 14,630,223 km (0.12 R)
• M15: 15,602,460 km (0.086 R)
• M16: 16,217,456 km (0.042 R)
• M17: 17,199,866 km (0.083 R)
• M18: 18,038,362 km (0.116 R)
• M19: 21,393,842 km (0.076 R)
• M20: 22,083,787 km (0.053 R)
• M21: 22,931,259 km (0.031 R)
• M22: 23,654,116 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.2

Radius: 3

Gravity: 42.47 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 5.18 AU - 7.36 AU

Year: 10299 Days

Day: 23.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,998,290 km

• M1: 47,423 km (0.119 R)
• M2: 175,777 km (0.094 R)
• M3: 453,880 km (0.113 R)
• M4: 552,465 km (0.103 R)
• M5: 794,065 km (0.06 R)
• M6: 1,090,718 km (0.057 R)
• M7: 1,897,649 km (0.086 R)
• M8: 5,246,397 km (0.116 R)
• M9: 5,855,410 km (0.059 R)
• M10: 6,617,911 km (0.103 R)
• M11: 7,212,413 km (0.058 R)
• M12: 8,506,733 km (0.114 R)
• M13: 9,298,854 km (0.054 R)
• M14: 11,079,218 km (0.06 R)
• M15: 13,245,695 km (0.11 R)
• M16: 13,593,360 km (0.085 R)
• M17: 14,611,074 km (0.114 R)
• M18: 15,872,184 km (0.085 R)
• M19: 21,563,785 km (0.093 R)
• M20: 35,277,721 km (0.042 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966.2

Radius: 8

Gravity: 15.1 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.16 AU - 6.42 AU

Year: 10349 Days

Day: 23 Hours

Environment

Temp: -218 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 54,998,290 km

• M1: 99,782 km (0.089 R)
• M2: 383,719 km (0.119 R)
• M3: 867,967 km (0.071 R)
• M4: 1,228,797 km (0.066 R)
• M5: 2,555,580 km (0.047 R)
• M6: 2,813,188 km (0.105 R)
• M7: 3,064,512 km (0.111 R)
• M8: 3,800,684 km (0.111 R)
• M9: 4,195,921 km (0.087 R)
• M10: 4,464,300 km (0.059 R)
• M11: 6,323,951 km (0.069 R)
• M12: 6,758,084 km (0.097 R)
• M13: 7,211,814 km (0.111 R)
• M14: 7,908,043 km (0.098 R)
• M15: 9,484,655 km (0.048 R)
• M16: 12,745,290 km (0.089 R)
• M17: 14,968,314 km (0.093 R)
• M18: 16,026,569 km (0.106 R)
• M19: 18,291,481 km (0.092 R)
• M20: 20,420,109 km (0.063 R)
• M21: 21,020,296 km (0.063 R)
• M22: 27,064,050 km (0.111 R)
• M23: 32,060,619 km (0.078 R)
• M24: 35,630,772 km (0.099 R)
• M25: 37,639,123 km (0.118 R)
• M26: 38,671,199 km (0.069 R)
• M27: 39,062,996 km (0.091 R)
• M28: 40,522,323 km (0.055 R)
• M29: 41,469,577 km (0.116 R)
• M30: 47,915,450 km (0.102 R)
• M31: 48,518,778 km (0.108 R)
• M32: 49,586,907 km (0.069 R)
• M33: 51,769,839 km (0.106 R)
• M34: 52,245,710 km (0.106 R)
• M35: 52,564,653 km (0.074 R)
• M36: 53,367,694 km (0.049 R)
• M37: 54,016,051 km (0.113 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: 187 - 18,969 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit