🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.44 AU - 0.58 AU

Year: 239 Days

Day: 44 Hours

Environment

Temp: -112 °C

Axial Tilt: 34 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,755,099 km

• M1: 659,876 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.46 AU - 0.56 AU

Year: 239 Days

Day: 16.3 Hours

Environment

Temp: -108 °C

Axial Tilt: 42.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,755,099 km

• M1: 159,771 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 97.8

Radius: 10.9

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.91 AU - 1.01 AU

Year: 617 Days

Day: 5.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,755,099 km

• M1: 159,920 km (0.078 R)
• M2: 639,381 km (0.082 R)
• M3: 1,568,683 km (0.059 R)
• M4: 2,083,599 km (0.09 R)
• M5: 2,529,251 km (0.078 R)
• M6: 3,192,718 km (0.106 R)
• M7: 3,700,752 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.3

Radius: 11.5

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.11 AU - 1.75 AU

Year: 1122 Days

Day: 8.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,755,099 km

• M1: 146,307 km (0.082 R)
• M2: 568,472 km (0.091 R)
• M3: 1,199,925 km (0.107 R)
• M4: 1,836,912 km (0.119 R)
• M5: 2,366,638 km (0.104 R)
• M6: 3,304,617 km (0.096 R)
• M7: 3,735,758 km (0.106 R)
• M8: 4,803,139 km (0.101 R)
• M9: 5,508,194 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.3

Radius: 8.8

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.29 AU - 1.67 AU

Year: 1181 Days

Day: 13.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,755,099 km

• M1: 109,655 km (0.039 R)
• M2: 399,127 km (0.065 R)
• M3: 1,121,984 km (0.068 R)
• M4: 1,630,617 km (0.103 R)
• M5: 2,001,021 km (0.117 R)
• M6: 2,296,477 km (0.094 R)
• M7: 2,752,451 km (0.068 R)
• M8: 3,133,028 km (0.089 R)
• M9: 3,938,164 km (0.116 R)
• M10: 4,306,474 km (0.055 R)
• M11: 4,697,523 km (0.062 R)
• M12: 5,130,758 km (0.093 R)
• M13: 5,830,427 km (0.041 R)
• M14: 6,395,907 km (0.09 R)
• M15: 7,253,103 km (0.098 R)
• M16: 8,057,790 km (0.112 R)
• M17: 8,390,795 km (0.069 R)
• M18: 8,786,332 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.2

Radius: 10.2

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.47 AU - 1.53 AU

Year: 1205 Days

Day: 5.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,755,099 km

• M1: 126,859 km (0.106 R)
• M2: 548,276 km (0.072 R)
• M3: 876,494 km (0.114 R)
• M4: 1,235,379 km (0.034 R)
• M5: 1,584,391 km (0.111 R)
• M6: 1,907,223 km (0.055 R)
• M7: 2,901,451 km (0.057 R)
• M8: 3,884,608 km (0.09 R)
• M9: 4,554,657 km (0.065 R)
• M10: 5,615,605 km (0.089 R)
• M11: 6,496,138 km (0.077 R)
• M12: 6,833,930 km (0.093 R)
• M13: 8,673,385 km (0.073 R)
• M14: 8,994,572 km (0.109 R)
• M15: 9,942,873 km (0.068 R)
• M16: 11,471,015 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 851.6

Radius: 12.2

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.48 AU - 2.4 AU

Year: 1773 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,755,099 km

• M1: 151,692 km (0.073 R)
• M2: 582,385 km (0.028 R)
• M3: 1,278,463 km (0.092 R)
• M4: 1,792,631 km (0.088 R)
• M5: 2,876,468 km (0.105 R)
• M6: 3,311,648 km (0.094 R)
• M7: 4,700,215 km (0.119 R)
• M8: 5,467,802 km (0.027 R)
• M9: 5,967,309 km (0.119 R)
• M10: 6,627,934 km (0.061 R)
• M11: 7,709,825 km (0.102 R)
• M12: 9,907,568 km (0.072 R)
• M13: 10,688,618 km (0.103 R)
• M14: 11,586,953 km (0.109 R)
• M15: 12,253,412 km (0.108 R)
• M16: 14,811,386 km (0.038 R)
• M17: 16,071,299 km (0.116 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.7

Radius: 11.3

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.72 AU - 3.7 AU

Year: 3773 Days

Day: 10.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,755,099 km

• M1: 142,567 km (0.071 R)
• M2: 726,896 km (0.081 R)
• M3: 2,415,557 km (0.053 R)
• M4: 4,511,722 km (0.036 R)
• M5: 5,405,719 km (0.111 R)
• M6: 6,850,685 km (0.048 R)
• M7: 8,501,348 km (0.069 R)
• M8: 9,902,930 km (0.089 R)
• M9: 12,004,032 km (0.111 R)
• M10: 14,229,301 km (0.078 R)
• M11: 17,727,796 km (0.047 R)
• M12: 18,968,860 km (0.117 R)
• M13: 19,545,859 km (0.037 R)
• M14: 20,533,505 km (0.047 R)
• M15: 21,623,325 km (0.114 R)
• M16: 22,536,770 km (0.034 R)
• M17: 23,256,934 km (0.049 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.4

Radius: 14.2

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 4.16 AU - 5.22 AU

Year: 6663 Days

Day: 11.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,755,099 km

• M1: 178,470 km (0.077 R)
• M2: 716,574 km (0.036 R)
• M3: 1,169,706 km (0.12 R)
• M4: 3,272,005 km (0.116 R)
• M5: 3,867,554 km (0.047 R)
• M6: 7,195,508 km (0.057 R)
• M7: 8,033,555 km (0.044 R)
• M8: 8,536,952 km (0.096 R)
• M9: 10,277,075 km (0.063 R)
• M10: 13,315,856 km (0.044 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340.2

Radius: 3.2

Gravity: 33.22 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 7.69 AU - 11.99 AU

Year: 20249 Days

Day: 17.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,755,099 km

• M1: 40,092 km (0.099 R)
• M2: 382,223 km (0.082 R)
• M3: 740,659 km (0.061 R)
• M4: 1,505,254 km (0.105 R)
• M5: 1,937,442 km (0.093 R)
• M6: 2,426,178 km (0.077 R)
• M7: 3,216,055 km (0.065 R)
• M8: 4,255,012 km (0.035 R)
• M9: 4,570,215 km (0.086 R)
• M10: 7,999,297 km (0.114 R)
• M11: 15,221,434 km (0.107 R)
• M12: 17,179,819 km (0.084 R)
• M13: 21,405,211 km (0.119 R)
• M14: 22,986,162 km (0.119 R)
• M15: 36,026,010 km (0.097 R)
• M16: 37,988,434 km (0.107 R)
• M17: 43,713,695 km (0.105 R)
• M18: 48,562,162 km (0.091 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 19,473 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit