🌌 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: 704.5

Radius: 12.4

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.55 AU - 0.59 AU

Year: 297 Days

Day: 13.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,064,450 km

• M1: 156,031 km (0.059 R)
• M2: 554,859 km (0.119 R)
• M3: 1,034,170 km (0.09 R)
• M4: 1,692,999 km (0.04 R)
• M5: 2,374,567 km (0.06 R)
• M6: 3,037,734 km (0.107 R)
• M7: 3,602,317 km (0.055 R)
• M8: 3,988,578 km (0.037 R)
• M9: 4,415,680 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.8

Radius: 14

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.94 AU - 1.06 AU

Year: 690 Days

Day: 12.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,064,450 km

• M1: 174,132 km (0.115 R)
• M2: 769,980 km (0.097 R)
• M3: 1,235,978 km (0.062 R)
• M4: 1,690,755 km (0.051 R)
• M5: 2,955,755 km (0.095 R)
• M6: 3,846,161 km (0.096 R)
• M7: 4,347,613 km (0.108 R)
• M8: 5,224,406 km (0.065 R)
• M9: 5,660,634 km (0.118 R)
• M10: 6,428,968 km (0.1 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.6

Radius: 11.1

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.22 AU - 1.26 AU

Year: 953 Days

Day: 12.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,064,450 km

• M1: 138,079 km (0.096 R)
• M2: 615,745 km (0.097 R)
• M3: 1,118,543 km (0.065 R)
• M4: 1,656,647 km (0.087 R)
• M5: 2,205,073 km (0.101 R)
• M6: 2,711,611 km (0.098 R)
• M7: 3,247,171 km (0.109 R)
• M8: 3,668,289 km (0.065 R)
• M9: 4,591,159 km (0.088 R)
• M10: 5,254,924 km (0.074 R)
• M11: 5,714,788 km (0.091 R)
• M12: 6,502,421 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.5

Radius: 13.2

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.54 AU - 1.54 AU

Year: 1319 Days

Day: 14.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,064,450 km

• M1: 164,857 km (0.095 R)
• M2: 654,939 km (0.075 R)
• M3: 1,114,055 km (0.083 R)
• M4: 1,631,814 km (0.087 R)
• M5: 2,204,325 km (0.082 R)
• M6: 2,716,398 km (0.106 R)
• M7: 3,200,946 km (0.068 R)
• M8: 3,692,973 km (0.117 R)
• M9: 4,272,216 km (0.087 R)
• M10: 4,830,814 km (0.071 R)
• M11: 6,095,365 km (0.059 R)
• M12: 6,579,314 km (0.104 R)
• M13: 7,010,904 km (0.097 R)
• M14: 7,959,205 km (0.095 R)
• M15: 8,991,430 km (0.059 R)
• M16: 9,556,013 km (0.093 R)
• M17: 11,465,630 km (0.096 R)
• M18: 12,092,594 km (0.112 R)
• M19: 13,822,245 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.1

Radius: 9.7

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.46 AU - 1.88 AU

Year: 1490 Days

Day: 8.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,064,450 km

• M1: 126,410 km (0.117 R)
• M2: 455,226 km (0.099 R)
• M3: 955,182 km (0.093 R)
• M4: 1,257,071 km (0.086 R)
• M5: 1,562,699 km (0.079 R)
• M6: 1,948,961 km (0.108 R)
• M7: 2,849,690 km (0.115 R)
• M8: 3,824,320 km (0.068 R)
• M9: 4,211,778 km (0.115 R)
• M10: 5,943,075 km (0.087 R)
• M11: 6,845,000 km (0.073 R)
• M12: 7,215,255 km (0.049 R)
• M13: 7,782,530 km (0.073 R)
• M14: 9,064,883 km (0.112 R)
• M15: 10,875,915 km (0.115 R)
• M16: 11,380,957 km (0.038 R)
• M17: 11,796,241 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.8

Radius: 13.5

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.44 AU - 2.34 AU

Year: 1794 Days

Day: 5.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,064,450 km

• M1: 167,849 km (0.088 R)
• M2: 621,430 km (0.095 R)
• M3: 1,096,104 km (0.037 R)
• M4: 1,627,924 km (0.108 R)
• M5: 2,166,776 km (0.042 R)
• M6: 2,595,673 km (0.106 R)
• M7: 3,246,872 km (0.093 R)
• M8: 3,934,873 km (0.066 R)
• M9: 4,522,792 km (0.104 R)
• M10: 5,899,242 km (0.111 R)
• M11: 6,326,045 km (0.115 R)
• M12: 6,798,924 km (0.101 R)
• M13: 7,648,939 km (0.033 R)
• M14: 8,215,466 km (0.112 R)
• M15: 9,593,113 km (0.079 R)
• M16: 10,628,330 km (0.053 R)
• M17: 11,736,851 km (0.046 R)
• M18: 12,802,885 km (0.076 R)
• M19: 13,891,060 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665

Radius: 8.5

Gravity: 9.2 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.79 AU - 2.75 AU

Year: 2361 Days

Day: 9.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,064,450 km

• M1: 108,010 km (0.066 R)
• M2: 426,204 km (0.062 R)
• M3: 713,133 km (0.103 R)
• M4: 1,641,089 km (0.081 R)
• M5: 2,086,591 km (0.111 R)
• M6: 2,440,689 km (0.108 R)
• M7: 2,728,665 km (0.107 R)
• M8: 3,586,011 km (0.119 R)
• M9: 4,380,375 km (0.091 R)
• M10: 4,830,515 km (0.061 R)
• M11: 8,958,220 km (0.103 R)
• M12: 11,213,408 km (0.078 R)
• M13: 12,056,242 km (0.116 R)
• M14: 12,641,170 km (0.027 R)
• M15: 13,420,724 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.4

Radius: 8.1

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 4.25 AU - 6.71 AU

Year: 8855 Days

Day: 6.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,064,450 km

• M1: 100,679 km (0.071 R)
• M2: 879,935 km (0.104 R)
• M3: 1,411,157 km (0.049 R)
• M4: 2,245,913 km (0.088 R)
• M5: 3,036,089 km (0.113 R)
• M6: 4,466,095 km (0.098 R)
• M7: 6,120,049 km (0.099 R)
• M8: 6,777,532 km (0.101 R)
• M9: 7,809,158 km (0.084 R)
• M10: 8,319,138 km (0.107 R)
• M11: 8,716,021 km (0.089 R)
• M12: 9,171,696 km (0.066 R)
• M13: 11,314,835 km (0.112 R)
• M14: 16,288,366 km (0.09 R)
• M15: 17,547,232 km (0.08 R)
• M16: 22,296,515 km (0.103 R)
• M17: 23,408,925 km (0.115 R)
• M18: 29,126,855 km (0.104 R)
• M19: 34,796,016 km (0.102 R)
• M20: 38,673,742 km (0.05 R)
• M21: 41,285,871 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 904.8

Radius: 6.6

Gravity: 20.77 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 6.27 AU - 7.47 AU

Year: 12429 Days

Day: 22.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,064,450 km

• M1: 82,428 km (0.107 R)
• M2: 303,833 km (0.097 R)
• M3: 921,373 km (0.096 R)
• M4: 1,532,481 km (0.078 R)
• M5: 3,967,934 km (0.108 R)
• M6: 4,359,132 km (0.088 R)
• M7: 6,186,620 km (0.041 R)
• M8: 8,183,452 km (0.117 R)
• M9: 10,238,777 km (0.117 R)
• M10: 10,687,571 km (0.114 R)
• M11: 11,806,264 km (0.099 R)
• M12: 14,622,444 km (0.049 R)
• M13: 19,341,808 km (0.09 R)
• M14: 20,114,481 km (0.086 R)
• M15: 21,266,534 km (0.101 R)
• M16: 25,901,824 km (0.066 R)
• M17: 27,051,484 km (0.101 R)
• M18: 27,800,670 km (0.12 R)
• M19: 28,783,977 km (0.04 R)
• M20: 29,228,432 km (0.069 R)
• M21: 30,704,365 km (0.093 R)
• M22: 32,348,744 km (0.098 R)
• M23: 37,897,778 km (0.072 R)
• M24: 39,514,333 km (0.119 R)
• M25: 43,028,985 km (0.074 R)
• M26: 45,986,385 km (0.048 R)
• M27: 47,514,677 km (0.079 R)
• M28: 49,076,629 km (0.116 R)
• M29: 50,511,272 km (0.099 R)
• M30: 55,666,864 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 182.4

Radius: 3.9

Gravity: 11.99 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 8.44 AU - 9.7 AU

Year: 18855 Days

Day: 24.8 Hours

Environment

Temp: -243 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 47,064,450 km

• M1: 71,657 km (0.045 R)
• M2: 220,208 km (0.095 R)
• M3: 436,078 km (0.104 R)
• M4: 884,423 km (0.075 R)
• M5: 1,722,769 km (0.084 R)
• M6: 3,265,273 km (0.081 R)
• M7: 4,595,048 km (0.118 R)
• M8: 4,806,280 km (0.067 R)
• M9: 5,119,239 km (0.105 R)
• M10: 6,285,205 km (0.095 R)
• M11: 9,461,168 km (0.073 R)
• M12: 9,902,332 km (0.102 R)
• M13: 10,254,784 km (0.092 R)
• M14: 12,030,062 km (0.06 R)
• M15: 18,946,421 km (0.072 R)
• M16: 20,932,781 km (0.064 R)
• M17: 27,322,106 km (0.096 R)
• M18: 28,718,902 km (0.078 R)
• M19: 34,897,593 km (0.034 R)
• M20: 39,599,903 km (0.11 R)
• M21: 40,486,270 km (0.087 R)
• M22: 42,958,674 km (0.037 R)
• M23: 45,529,962 km (0.112 R)
• M24: 45,945,096 km (0.099 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 354 - 11,570 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit