🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.5

Radius: 9.3

Gravity: 10.28 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.76 AU - 1.22 AU

Year: 668 Days

Day: 13.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 38,056,769 km

• M1: 118,631 km (0.062 R)
• M2: 426,504 km (0.042 R)
• M3: 854,204 km (0.119 R)
• M4: 1,158,486 km (0.096 R)
• M5: 1,483,263 km (0.074 R)
• M6: 1,833,771 km (0.107 R)
• M7: 2,352,875 km (0.097 R)
• M8: 3,339,324 km (0.056 R)
• M9: 4,868,214 km (0.073 R)
• M10: 5,943,972 km (0.101 R)
• M11: 6,453,802 km (0.088 R)
• M12: 7,560,826 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327

Radius: 15

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.45 AU - 1.71 AU

Year: 1347 Days

Day: 9.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,056,769 km

• M1: 186,549 km (0.075 R)
• M2: 781,798 km (0.103 R)
• M3: 1,430,305 km (0.093 R)
• M4: 2,190,262 km (0.066 R)
• M5: 2,765,915 km (0.057 R)
• M6: 3,359,071 km (0.09 R)
• M7: 4,036,899 km (0.07 R)
• M8: 4,751,827 km (0.113 R)
• M9: 5,992,741 km (0.084 R)
• M10: 7,156,613 km (0.109 R)
• M11: 8,156,824 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.6

Radius: 13.3

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.19 AU - 1.99 AU

Year: 1360 Days

Day: 10.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,056,769 km

• M1: 166,951 km (0.026 R)
• M2: 607,218 km (0.116 R)
• M3: 1,159,234 km (0.084 R)
• M4: 2,297,075 km (0.111 R)
• M5: 2,747,215 km (0.05 R)
• M6: 3,330,348 km (0.074 R)
• M7: 4,045,874 km (0.068 R)
• M8: 4,804,336 km (0.093 R)
• M9: 5,299,654 km (0.068 R)
• M10: 7,553,645 km (0.088 R)
• M11: 10,615,016 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 428.9

Radius: 15

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.6 AU - 2.14 AU

Year: 1734 Days

Day: 6.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,056,769 km

• M1: 186,549 km (0.088 R)
• M2: 1,065,436 km (0.102 R)
• M3: 1,567,636 km (0.029 R)
• M4: 2,089,433 km (0.088 R)
• M5: 2,638,458 km (0.027 R)
• M6: 3,450,026 km (0.117 R)
• M7: 5,095,303 km (0.025 R)
• M8: 5,923,776 km (0.063 R)
• M9: 7,555,440 km (0.112 R)
• M10: 10,458,686 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.8

Radius: 9.2

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.9 AU - 2.7 AU

Year: 2366 Days

Day: 7.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,056,769 km

• M1: 114,442 km (0.086 R)
• M2: 409,749 km (0.096 R)
• M3: 814,411 km (0.092 R)
• M4: 1,161,627 km (0.09 R)
• M5: 1,720,525 km (0.103 R)
• M6: 2,559,320 km (0.108 R)
• M7: 3,174,168 km (0.098 R)
• M8: 4,976,972 km (0.077 R)
• M9: 6,059,163 km (0.113 R)
• M10: 6,736,392 km (0.111 R)
• M11: 8,026,823 km (0.053 R)
• M12: 9,072,812 km (0.089 R)
• M13: 10,789,896 km (0.084 R)
• M14: 11,165,387 km (0.03 R)
• M15: 11,942,398 km (0.102 R)
• M16: 12,963,852 km (0.082 R)
• M17: 13,302,691 km (0.102 R)
• M18: 13,734,581 km (0.091 R)
• M19: 15,226,670 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.4

Radius: 14.7

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.93 AU - 2.91 AU

Year: 2553 Days

Day: 12.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,056,769 km

• M1: 182,809 km (0.116 R)
• M2: 657,931 km (0.109 R)
• M3: 1,267,992 km (0.076 R)
• M4: 2,023,162 km (0.093 R)
• M5: 3,288,760 km (0.115 R)
• M6: 3,806,368 km (0.117 R)
• M7: 4,508,581 km (0.078 R)
• M8: 4,984,751 km (0.076 R)
• M9: 5,672,003 km (0.1 R)
• M10: 6,173,904 km (0.085 R)
• M11: 7,576,235 km (0.118 R)
• M12: 8,153,682 km (0.104 R)
• M13: 9,764,552 km (0.078 R)
• M14: 13,423,567 km (0.071 R)
• M15: 14,905,932 km (0.046 R)
• M16: 16,707,988 km (0.088 R)
• M17: 17,248,485 km (0.045 R)
• M18: 19,233,200 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.4

Radius: 14.7

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.23 AU - 4.49 AU

Year: 5144 Days

Day: 12.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,056,769 km

• M1: 193,430 km (0.106 R)
• M2: 1,005,148 km (0.117 R)
• M3: 1,551,480 km (0.098 R)
• M4: 2,259,975 km (0.115 R)
• M5: 5,538,113 km (0.068 R)
• M6: 7,913,578 km (0.089 R)
• M7: 9,192,490 km (0.109 R)
• M8: 10,642,393 km (0.115 R)
• M9: 11,247,815 km (0.098 R)
• M10: 13,947,907 km (0.06 R)
• M11: 15,140,202 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.6

Radius: 4

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 9.65 AU - 10.91 AU

Year: 22355 Days

Day: 18.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,056,769 km

• M1: 52,060 km (0.101 R)
• M2: 500,255 km (0.108 R)
• M3: 1,015,620 km (0.092 R)
• M4: 1,882,839 km (0.096 R)
• M5: 2,037,972 km (0.085 R)
• M6: 2,727,169 km (0.063 R)
• M7: 2,885,743 km (0.089 R)
• M8: 6,034,479 km (0.109 R)
• M9: 8,055,696 km (0.111 R)
• M10: 10,106,683 km (0.084 R)
• M11: 11,226,871 km (0.092 R)
• M12: 15,202,734 km (0.105 R)
• M13: 19,146,732 km (0.079 R)
• M14: 19,802,719 km (0.078 R)
• M15: 24,648,493 km (0.066 R)
• M16: 35,712,303 km (0.077 R)
• M17: 36,261,477 km (0.108 R)
• M18: 36,482,732 km (0.11 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 15,897 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit