🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.5

Radius: 12.5

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.7 AU - 0.82 AU

Year: 449 Days

Day: 10.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,505,898 km

• M1: 155,432 km (0.093 R)
• M2: 603,777 km (0.115 R)
• M3: 1,037,461 km (0.092 R)
• M4: 1,446,163 km (0.039 R)
• M5: 2,119,652 km (0.073 R)
• M6: 2,710,414 km (0.087 R)
• M7: 3,250,612 km (0.094 R)
• M8: 3,835,091 km (0.067 R)
• M9: 4,224,494 km (0.082 R)
• M10: 5,400,932 km (0.115 R)
• M11: 5,838,356 km (0.057 R)
• M12: 6,548,796 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.9

Radius: 13.7

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.24 AU - 1.38 AU

Year: 1017 Days

Day: 9.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 66,505,898 km

• M1: 170,392 km (0.092 R)
• M2: 629,508 km (0.101 R)
• M3: 1,164,171 km (0.048 R)
• M4: 1,922,931 km (0.045 R)
• M5: 2,411,966 km (0.062 R)
• M6: 3,700,752 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.7

Radius: 13.4

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.49 AU - 1.65 AU

Year: 1334 Days

Day: 7.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,505,898 km

• M1: 166,652 km (0.106 R)
• M2: 617,390 km (0.093 R)
• M3: 1,066,334 km (0.053 R)
• M4: 1,753,586 km (0.074 R)
• M5: 2,361,851 km (0.114 R)
• M6: 2,803,015 km (0.062 R)
• M7: 3,239,991 km (0.046 R)
• M8: 3,722,743 km (0.109 R)
• M9: 4,472,528 km (0.09 R)
• M10: 4,933,588 km (0.075 R)
• M11: 6,088,633 km (0.07 R)
• M12: 6,656,656 km (0.115 R)
• M13: 7,131,480 km (0.116 R)
• M14: 8,065,420 km (0.091 R)
• M15: 8,722,603 km (0.045 R)
• M16: 12,223,941 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.9

Radius: 13.9

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.92 AU - 2.7 AU

Year: 2381 Days

Day: 14.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,505,898 km

• M1: 172,935 km (0.084 R)
• M2: 664,364 km (0.116 R)
• M3: 1,198,279 km (0.052 R)
• M4: 1,741,319 km (0.116 R)
• M5: 2,228,410 km (0.056 R)
• M6: 2,967,124 km (0.104 R)
• M7: 3,728,577 km (0.106 R)
• M8: 4,463,552 km (0.119 R)
• M9: 6,671,317 km (0.056 R)
• M10: 7,170,226 km (0.086 R)
• M11: 8,144,557 km (0.093 R)
• M12: 10,433,853 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.3

Radius: 11.2

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.02 AU - 5.54 AU

Year: 7088 Days

Day: 8.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,505,898 km

• M1: 139,425 km (0.118 R)
• M2: 517,010 km (0.064 R)
• M3: 1,076,357 km (0.099 R)
• M4: 2,314,429 km (0.057 R)
• M5: 3,055,237 km (0.103 R)
• M6: 3,515,999 km (0.034 R)
• M7: 4,717,718 km (0.059 R)
• M8: 6,842,906 km (0.112 R)
• M9: 7,441,896 km (0.076 R)
• M10: 8,701,659 km (0.082 R)
• M11: 9,181,270 km (0.058 R)
• M12: 10,530,793 km (0.119 R)
• M13: 10,975,397 km (0.083 R)
• M14: 11,691,822 km (0.096 R)
• M15: 12,824,726 km (0.05 R)
• M16: 13,970,347 km (0.097 R)
• M17: 15,751,010 km (0.072 R)
• M18: 17,403,468 km (0.102 R)
• M19: 19,314,731 km (0.044 R)
• M20: 19,906,989 km (0.108 R)
• M21: 20,895,232 km (0.085 R)
• M22: 25,973,482 km (0.084 R)
• M23: 28,844,863 km (0.11 R)
• M24: 29,912,693 km (0.078 R)
• M25: 30,506,147 km (0.107 R)
• M26: 31,921,493 km (0.118 R)
• M27: 33,804,930 km (0.073 R)
• M28: 36,880,213 km (0.098 R)
• M29: 38,369,610 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.7

Radius: 11.7

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 4.1 AU - 6.41 AU

Year: 8159 Days

Day: 13.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,505,898 km

• M1: 146,307 km (0.062 R)
• M2: 819,796 km (0.098 R)
• M3: 1,602,642 km (0.087 R)
• M4: 2,111,424 km (0.052 R)
• M5: 2,656,559 km (0.078 R)
• M6: 3,314,341 km (0.103 R)
• M7: 3,759,394 km (0.048 R)
• M8: 4,196,370 km (0.109 R)
• M9: 5,453,740 km (0.1 R)
• M10: 6,616,115 km (0.084 R)
• M11: 8,426,549 km (0.041 R)
• M12: 11,563,167 km (0.096 R)
• M13: 13,843,937 km (0.106 R)
• M14: 16,289,563 km (0.102 R)
• M15: 19,344,949 km (0.078 R)
• M16: 19,957,702 km (0.025 R)
• M17: 20,513,159 km (0.097 R)
• M18: 22,914,055 km (0.099 R)
• M19: 24,378,469 km (0.036 R)
• M20: 25,659,176 km (0.093 R)
• M21: 27,237,883 km (0.034 R)
• M22: 28,007,863 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.9

Radius: 5.6

Gravity: 17.76 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 4.75 AU - 7.05 AU

Year: 9720 Days

Day: 22 Hours

Environment

Temp: -220 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,505,898 km

• M1: 69,862 km (0.1 R)
• M2: 325,226 km (0.051 R)
• M3: 683,064 km (0.081 R)
• M4: 1,105,678 km (0.03 R)
• M5: 1,948,811 km (0.09 R)
• M6: 2,399,400 km (0.065 R)
• M7: 2,938,252 km (0.081 R)
• M8: 3,828,658 km (0.111 R)
• M9: 4,063,527 km (0.062 R)
• M10: 4,280,294 km (0.09 R)
• M11: 4,977,570 km (0.074 R)
• M12: 7,766,523 km (0.1 R)
• M13: 8,229,080 km (0.06 R)
• M14: 9,071,016 km (0.042 R)
• M15: 11,721,292 km (0.1 R)
• M16: 12,499,052 km (0.106 R)
• M17: 13,972,591 km (0.079 R)
• M18: 14,218,679 km (0.113 R)
• M19: 14,593,123 km (0.07 R)
• M20: 15,296,831 km (0.029 R)
• M21: 18,192,298 km (0.083 R)
• M22: 21,351,954 km (0.086 R)
• M23: 31,490,801 km (0.116 R)
• M24: 34,198,073 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 957.6

Radius: 4.4

Gravity: 49.46 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.59 AU - 6.39 AU

Year: 9943 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 66,505,898 km

• M1: 55,351 km (0.09 R)
• M2: 261,198 km (0.091 R)
• M3: 562,937 km (0.033 R)
• M4: 755,768 km (0.119 R)
• M5: 1,263,653 km (0.088 R)
• M6: 2,169,618 km (0.077 R)
• M7: 2,778,481 km (0.102 R)
• M8: 2,935,559 km (0.089 R)
• M9: 3,922,307 km (0.108 R)
• M10: 4,754,968 km (0.117 R)
• M11: 5,522,106 km (0.044 R)
• M12: 6,923,988 km (0.103 R)
• M13: 7,340,319 km (0.119 R)
• M14: 7,995,557 km (0.11 R)
• M15: 9,173,192 km (0.12 R)
• M16: 9,573,217 km (0.101 R)
• M17: 9,880,790 km (0.108 R)
• M18: 10,247,903 km (0.093 R)
• M19: 10,407,973 km (0.115 R)
• M20: 15,389,283 km (0.03 R)
• M21: 17,500,857 km (0.092 R)
• M22: 18,037,913 km (0.045 R)
• M23: 19,715,354 km (0.069 R)
• M24: 21,581,288 km (0.116 R)
• M25: 21,844,431 km (0.114 R)
• M26: 23,009,948 km (0.066 R)
• M27: 24,121,909 km (0.087 R)
• M28: 30,005,144 km (0.116 R)
• M29: 35,178,238 km (0.03 R)
• M30: 45,641,562 km (0.049 R)
• M31: 51,184,163 km (0.097 R)
• M32: 53,393,126 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.6

Radius: 7.7

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.45 AU - 9.01 AU

Year: 14577 Days

Day: 17.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,505,898 km

• M1: 381,175 km (0.058 R)
• M2: 1,573,770 km (0.107 R)
• M3: 2,526,858 km (0.111 R)
• M4: 5,038,456 km (0.032 R)
• M5: 5,637,297 km (0.104 R)
• M6: 8,601,878 km (0.06 R)
• M7: 11,865,804 km (0.109 R)
• M8: 12,809,168 km (0.05 R)
• M9: 17,857,348 km (0.098 R)
• M10: 19,243,522 km (0.089 R)
• M11: 21,982,510 km (0.11 R)
• M12: 25,509,130 km (0.112 R)
• M13: 27,076,018 km (0.088 R)
• M14: 28,803,724 km (0.096 R)
• M15: 29,098,731 km (0.086 R)
• M16: 37,493,864 km (0.064 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 474.3

Radius: 7.8

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 8.35 AU - 10.51 AU

Year: 19641 Days

Day: 23.1 Hours

Environment

Temp: -244 °C

Axial Tilt: 96.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,505,898 km

• M1: 169,494 km (0.053 R)
• M2: 484,248 km (0.106 R)
• M3: 766,240 km (0.063 R)
• M4: 1,346,830 km (0.111 R)
• M5: 2,638,607 km (0.118 R)
• M6: 2,993,304 km (0.077 R)
• M7: 3,655,424 km (0.086 R)
• M8: 3,946,093 km (0.066 R)
• M9: 5,267,191 km (0.099 R)
• M10: 5,870,520 km (0.072 R)
• M11: 9,115,148 km (0.114 R)
• M12: 9,927,913 km (0.113 R)
• M13: 10,612,174 km (0.103 R)
• M14: 10,965,973 km (0.118 R)
• M15: 13,529,033 km (0.093 R)
• M16: 14,015,226 km (0.076 R)
• M17: 22,875,310 km (0.088 R)
• M18: 34,482,309 km (0.095 R)
• M19: 36,312,340 km (0.092 R)
• M20: 37,658,422 km (0.041 R)
• M21: 46,598,241 km (0.1 R)
• M22: 48,509,054 km (0.052 R)
• M23: 62,792,061 km (0.049 R)
• M24: 64,143,677 km (0.091 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 14,836 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit