🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 965.7

Radius: 14.2

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.55 AU - 0.55 AU

Year: 287 Days

Day: 5.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 142 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,726,999 km

• M1: 176,675 km (0.055 R)
• M2: 634,295 km (0.077 R)
• M3: 1,095,356 km (0.114 R)
• M4: 1,567,038 km (0.09 R)
• M5: 2,544,660 km (0.069 R)
• M6: 2,994,800 km (0.052 R)
• M7: 3,730,073 km (0.098 R)
• M8: 4,777,258 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.2

Radius: 8

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.65 AU - 0.83 AU

Year: 447 Days

Day: 5 Hours

Environment

Temp: -153 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,726,999 km

• M1: 99,483 km (0.043 R)
• M2: 359,334 km (0.102 R)
• M3: 642,972 km (0.118 R)
• M4: 891,903 km (0.119 R)
• M5: 1,202,168 km (0.053 R)
• M6: 1,742,516 km (0.038 R)
• M7: 2,375,913 km (0.069 R)
• M8: 2,676,306 km (0.035 R)
• M9: 3,268,863 km (0.107 R)
• M10: 3,619,072 km (0.077 R)
• M11: 4,395,036 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 291.5

Radius: 11

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.49 AU - 1.85 AU

Year: 1517 Days

Day: 7 Hours

Environment

Temp: -198 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,726,999 km

• M1: 137,480 km (0.088 R)
• M2: 755,619 km (0.11 R)
• M3: 1,228,049 km (0.118 R)
• M4: 1,712,447 km (0.067 R)
• M5: 2,246,810 km (0.085 R)
• M6: 2,630,828 km (0.076 R)
• M7: 3,166,389 km (0.03 R)
• M8: 3,773,606 km (0.096 R)
• M9: 5,614,258 km (0.032 R)
• M10: 6,069,934 km (0.112 R)
• M11: 6,708,268 km (0.091 R)
• M12: 8,407,400 km (0.12 R)
• M13: 9,543,895 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410

Radius: 9.8

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.2 AU - 2.78 AU

Year: 2762 Days

Day: 8.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,726,999 km

• M1: 121,922 km (0.12 R)
• M2: 460,462 km (0.108 R)
• M3: 767,138 km (0.116 R)
• M4: 1,154,297 km (0.087 R)
• M5: 1,502,860 km (0.036 R)
• M6: 1,967,960 km (0.082 R)
• M7: 2,312,484 km (0.063 R)
• M8: 3,615,332 km (0.097 R)
• M9: 3,944,896 km (0.115 R)
• M10: 4,415,830 km (0.1 R)
• M11: 6,523,814 km (0.086 R)
• M12: 7,269,260 km (0.097 R)
• M13: 8,131,991 km (0.113 R)
• M14: 10,275,878 km (0.104 R)
• M15: 12,235,011 km (0.086 R)
• M16: 12,771,769 km (0.077 R)
• M17: 13,152,495 km (0.095 R)
• M18: 14,705,770 km (0.079 R)
• M19: 15,124,195 km (0.103 R)
• M20: 15,550,549 km (0.083 R)
• M21: 16,777,102 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.8

Radius: 11.4

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.95 AU - 3.97 AU

Year: 5539 Days

Day: 6.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,726,999 km

• M1: 141,819 km (0.07 R)
• M2: 518,805 km (0.117 R)
• M3: 874,250 km (0.102 R)
• M4: 1,290,282 km (0.086 R)
• M5: 1,702,274 km (0.11 R)
• M6: 2,631,875 km (0.074 R)
• M7: 3,570,153 km (0.085 R)
• M8: 4,192,032 km (0.029 R)
• M9: 4,609,858 km (0.079 R)
• M10: 5,777,769 km (0.106 R)
• M11: 7,061,019 km (0.065 R)
• M12: 10,893,418 km (0.06 R)
• M13: 12,046,219 km (0.119 R)
• M14: 13,223,405 km (0.078 R)
• M15: 14,126,527 km (0.095 R)
• M16: 17,347,219 km (0.089 R)
• M17: 18,567,639 km (0.118 R)
• M18: 19,989,866 km (0.092 R)
• M19: 21,560,045 km (0.11 R)
• M20: 22,970,005 km (0.066 R)
• M21: 26,851,621 km (0.063 R)
• M22: 31,742,424 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.2

Radius: 12.4

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 4.15 AU - 4.69 AU

Year: 6532 Days

Day: 12.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,726,999 km

• M1: 154,235 km (0.062 R)
• M2: 579,841 km (0.111 R)
• M3: 970,890 km (0.106 R)
• M4: 1,401,134 km (0.108 R)
• M5: 2,134,313 km (0.079 R)
• M6: 2,737,940 km (0.101 R)
• M7: 4,192,780 km (0.059 R)
• M8: 5,570,277 km (0.047 R)
• M9: 6,268,001 km (0.104 R)
• M10: 8,441,509 km (0.109 R)
• M11: 10,439,388 km (0.097 R)
• M12: 10,984,672 km (0.073 R)
• M13: 13,463,808 km (0.107 R)
• M14: 14,385,780 km (0.066 R)
• M15: 14,833,975 km (0.092 R)
• M16: 15,758,341 km (0.075 R)
• M17: 16,355,386 km (0.113 R)
• M18: 16,782,188 km (0.044 R)
• M19: 18,498,973 km (0.086 R)
• M20: 21,253,220 km (0.086 R)
• M21: 21,835,305 km (0.116 R)
• M22: 30,218,321 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 261.2

Radius: 3.6

Gravity: 20.15 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 5.51 AU - 6.35 AU

Year: 10151 Days

Day: 24.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,726,999 km

• M1: 96,790 km (0.1 R)
• M2: 529,427 km (0.091 R)
• M3: 882,328 km (0.082 R)
• M4: 1,640,041 km (0.101 R)
• M5: 1,983,967 km (0.078 R)
• M6: 3,218,449 km (0.06 R)
• M7: 6,006,355 km (0.109 R)
• M8: 6,268,450 km (0.047 R)
• M9: 9,453,089 km (0.045 R)
• M10: 10,924,085 km (0.034 R)
• M11: 13,628,366 km (0.115 R)
• M12: 14,426,171 km (0.082 R)
• M13: 17,070,314 km (0.055 R)
• M14: 17,929,155 km (0.08 R)
• M15: 26,292,424 km (0.044 R)
• M16: 30,871,765 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 377.4

Radius: 4.3

Gravity: 20.41 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.54 AU - 9.28 AU

Year: 17144 Days

Day: 16.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 63,726,999 km

• M1: 53,406 km (0.091 R)
• M2: 191,784 km (0.075 R)
• M3: 329,714 km (0.101 R)
• M4: 510,129 km (0.095 R)
• M5: 821,143 km (0.088 R)
• M6: 985,850 km (0.096 R)
• M7: 1,123,779 km (0.113 R)
• M8: 1,327,980 km (0.07 R)
• M9: 1,526,646 km (0.089 R)
• M10: 1,844,841 km (0.064 R)
• M11: 2,074,324 km (0.099 R)
• M12: 2,485,269 km (0.114 R)
• M13: 2,655,362 km (0.076 R)
• M14: 4,160,466 km (0.1 R)
• M15: 4,400,721 km (0.081 R)
• M16: 5,527,043 km (0.102 R)
• M17: 5,817,562 km (0.077 R)
• M18: 6,389,774 km (0.077 R)
• M19: 8,472,775 km (0.1 R)
• M20: 10,688,319 km (0.092 R)
• M21: 11,720,395 km (0.066 R)
• M22: 13,197,674 km (0.1 R)
• M23: 15,425,336 km (0.095 R)
• M24: 19,341,509 km (0.092 R)
• M25: 23,871,931 km (0.113 R)
• M26: 24,062,668 km (0.08 R)
• M27: 25,228,933 km (0.086 R)
• M28: 27,255,535 km (0.088 R)
• M29: 28,844,863 km (0.108 R)
• M30: 31,058,612 km (0.059 R)
• M31: 32,909,288 km (0.058 R)
• M32: 35,200,678 km (0.116 R)
• M33: 42,289,672 km (0.048 R)
• M34: 45,871,195 km (0.106 R)
• M35: 46,314,154 km (0.082 R)
• M36: 46,462,406 km (0.107 R)
• M37: 46,610,957 km (0.071 R)
• M38: 46,759,806 km (0.032 R)
• M39: 47,208,450 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441

Radius: 5.9

Gravity: 12.67 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 8.29 AU - 9.79 AU

Year: 19106 Days

Day: 20.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 63,726,999 km

• M1: 73,901 km (0.091 R)
• M2: 338,989 km (0.118 R)
• M3: 942,317 km (0.103 R)
• M4: 1,326,335 km (0.113 R)
• M5: 2,319,515 km (0.097 R)
• M6: 2,509,504 km (0.064 R)
• M7: 3,168,632 km (0.116 R)
• M8: 3,376,723 km (0.116 R)
• M9: 3,649,590 km (0.053 R)
• M10: 4,147,152 km (0.054 R)
• M11: 4,333,252 km (0.106 R)
• M12: 4,655,935 km (0.082 R)
• M13: 5,349,171 km (0.102 R)
• M14: 5,682,625 km (0.1 R)
• M15: 6,598,014 km (0.107 R)
• M16: 9,549,879 km (0.051 R)
• M17: 10,041,009 km (0.105 R)
• M18: 10,377,604 km (0.093 R)
• M19: 11,676,413 km (0.079 R)
• M20: 12,557,245 km (0.083 R)
• M21: 14,879,752 km (0.108 R)
• M22: 17,878,890 km (0.079 R)
• M23: 18,540,412 km (0.095 R)
• M24: 19,047,100 km (0.098 R)
• M25: 22,759,521 km (0.053 R)
• M26: 23,242,872 km (0.054 R)
• M27: 23,634,519 km (0.114 R)
• M28: 23,931,022 km (0.11 R)
• M29: 26,606,280 km (0.072 R)
• M30: 26,927,318 km (0.088 R)
• M31: 27,686,228 km (0.111 R)
• M32: 29,933,188 km (0.074 R)
• M33: 33,526,977 km (0.075 R)
• M34: 35,170,011 km (0.114 R)
• M35: 37,801,138 km (0.081 R)
• M36: 44,645,390 km (0.116 R)
• M37: 45,860,873 km (0.118 R)
• M38: 46,786,884 km (0.079 R)
• M39: 49,801,430 km (0.079 R)
• M40: 59,253,024 km (0.096 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: 300 - 12,613 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit