🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.7

Radius: 8.1

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.86 AU - 0.88 AU

Year: 541 Days

Day: 12.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,939,047 km

• M1: 100,679 km (0.052 R)
• M2: 399,576 km (0.115 R)
• M3: 872,754 km (0.107 R)
• M4: 1,271,283 km (0.105 R)
• M5: 2,293,784 km (0.1 R)
• M6: 3,748,474 km (0.117 R)
• M7: 4,142,515 km (0.086 R)
• M8: 4,677,477 km (0.11 R)
• M9: 5,134,797 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.4

Radius: 11.2

Gravity: 6.56 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.77 AU - 1.27 AU

Year: 687 Days

Day: 6.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,939,047 km

• M1: 139,276 km (0.047 R)
• M2: 490,681 km (0.104 R)
• M3: 900,430 km (0.113 R)
• M4: 1,624,034 km (0.097 R)
• M5: 2,133,714 km (0.101 R)
• M6: 2,657,157 km (0.035 R)
• M7: 3,213,063 km (0.093 R)
• M8: 3,830,753 km (0.034 R)
• M9: 4,253,965 km (0.098 R)
• M10: 4,674,933 km (0.081 R)
• M11: 5,525,397 km (0.037 R)
• M12: 5,909,116 km (0.118 R)
• M13: 6,644,838 km (0.036 R)
• M14: 7,957,560 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.2

Radius: 14.6

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.17 AU - 1.65 AU

Year: 1116 Days

Day: 11.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,939,047 km

• M1: 181,612 km (0.114 R)
• M2: 636,988 km (0.041 R)
• M3: 1,394,851 km (0.117 R)
• M4: 1,861,746 km (0.112 R)
• M5: 2,457,145 km (0.059 R)
• M6: 3,231,613 km (0.084 R)
• M7: 3,885,206 km (0.057 R)
• M8: 4,764,094 km (0.112 R)
• M9: 6,348,784 km (0.12 R)
• M10: 7,450,722 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.4

Radius: 14.3

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.38 AU - 1.56 AU

Year: 1189 Days

Day: 6.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 40,939,047 km

• M1: 177,872 km (0.107 R)
• M2: 722,857 km (0.03 R)
• M3: 1,196,035 km (0.087 R)
• M4: 1,713,494 km (0.109 R)
• M5: 2,177,547 km (0.066 R)
• M6: 2,637,410 km (0.115 R)
• M7: 3,148,437 km (0.088 R)
• M8: 3,598,577 km (0.042 R)
• M9: 4,409,696 km (0.103 R)
• M10: 4,976,672 km (0.083 R)
• M11: 5,634,903 km (0.093 R)
• M12: 7,381,608 km (0.109 R)
• M13: 9,044,388 km (0.078 R)
• M14: 9,558,107 km (0.102 R)
• M15: 11,149,081 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.6

Radius: 14.4

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.97 AU - 2.13 AU

Year: 1957 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,939,047 km

• M1: 201,508 km (0.082 R)
• M2: 769,083 km (0.09 R)
• M3: 1,788,592 km (0.05 R)
• M4: 2,910,875 km (0.044 R)
• M5: 4,388,304 km (0.116 R)
• M6: 4,939,123 km (0.12 R)
• M7: 5,908,069 km (0.1 R)
• M8: 7,648,490 km (0.098 R)
• M9: 9,155,390 km (0.113 R)
• M10: 10,253,887 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.9

Radius: 6.4

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.9 AU - 7.48 AU

Year: 10270 Days

Day: 17.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 40,939,047 km

• M1: 79,586 km (0.118 R)
• M2: 344,973 km (0.059 R)
• M3: 678,127 km (0.076 R)
• M4: 1,327,681 km (0.103 R)
• M5: 2,188,617 km (0.112 R)
• M6: 2,980,289 km (0.084 R)
• M7: 3,319,427 km (0.06 R)
• M8: 4,032,710 km (0.073 R)
• M9: 5,262,255 km (0.103 R)
• M10: 5,948,909 km (0.045 R)
• M11: 6,965,426 km (0.08 R)
• M12: 9,677,187 km (0.116 R)
• M13: 10,786,605 km (0.094 R)
• M14: 12,244,735 km (0.096 R)
• M15: 14,370,371 km (0.096 R)
• M16: 14,925,230 km (0.114 R)
• M17: 17,514,171 km (0.092 R)
• M18: 21,936,134 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 201.3

Radius: 5.7

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 6.34 AU - 7.88 AU

Year: 12643 Days

Day: 24.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,939,047 km

• M1: 77,791 km (0.064 R)
• M2: 355,145 km (0.095 R)
• M3: 597,943 km (0.113 R)
• M4: 1,335,759 km (0.09 R)
• M5: 1,706,762 km (0.057 R)
• M6: 2,806,456 km (0.085 R)
• M7: 3,459,750 km (0.077 R)
• M8: 3,690,729 km (0.065 R)
• M9: 4,081,778 km (0.071 R)
• M10: 6,994,299 km (0.108 R)
• M11: 8,388,102 km (0.108 R)
• M12: 9,325,632 km (0.086 R)
• M13: 10,049,985 km (0.095 R)
• M14: 11,815,988 km (0.098 R)
• M15: 15,572,390 km (0.107 R)
• M16: 16,589,955 km (0.11 R)
• M17: 21,335,050 km (0.077 R)
• M18: 31,554,679 km (0.086 R)
• M19: 33,907,405 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 900.4

Radius: 3.2

Gravity: 87.93 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 6.69 AU - 7.75 AU

Year: 12937 Days

Day: 24 Hours

Environment

Temp: -240 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 40,939,047 km

• M1: 43,832 km (0.029 R)
• M2: 147,504 km (0.086 R)
• M3: 460,462 km (0.094 R)
• M4: 633,397 km (0.074 R)
• M5: 990,039 km (0.068 R)
• M6: 1,321,398 km (0.091 R)
• M7: 1,968,558 km (0.068 R)
• M8: 2,218,237 km (0.076 R)
• M9: 2,319,665 km (0.081 R)
• M10: 3,908,693 km (0.057 R)
• M11: 6,143,536 km (0.052 R)
• M12: 6,303,755 km (0.114 R)
• M13: 7,369,490 km (0.046 R)
• M14: 7,734,360 km (0.09 R)
• M15: 8,111,197 km (0.103 R)
• M16: 9,210,442 km (0.12 R)
• M17: 10,236,384 km (0.061 R)
• M18: 10,575,672 km (0.116 R)
• M19: 10,805,903 km (0.111 R)
• M20: 11,760,637 km (0.107 R)
• M21: 12,512,516 km (0.071 R)
• M22: 13,836,008 km (0.056 R)
• M23: 20,954,323 km (0.063 R)
• M24: 21,408,951 km (0.087 R)
• M25: 24,275,994 km (0.037 R)
• M26: 25,081,429 km (0.067 R)
• M27: 27,280,668 km (0.097 R)
• M28: 31,818,420 km (0.092 R)
• M29: 33,271,913 km (0.113 R)
• M30: 42,063,480 km (0.11 R)
• M31: 43,223,911 km (0.088 R)
• M32: 44,854,378 km (0.07 R)
• M33: 49,829,405 km (0.114 R)
• M34: 50,475,967 km (0.101 R)
• M35: 52,282,960 km (0.118 R)
• M36: 54,132,588 km (0.088 R)
• M37: 55,678,084 km (0.116 R)
• M38: 60,124,731 km (0.099 R)
• M39: 60,307,390 km (0.107 R)
• M40: 62,154,026 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 66.4

Radius: 4.7

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 6.69 AU - 9.51 AU

Year: 15373 Days

Day: 18 Hours

Environment

Temp: -225 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,939,047 km

• M1: 59,241 km (0.118 R)
• M2: 215,271 km (0.12 R)
• M3: 391,797 km (0.079 R)
• M4: 1,168,808 km (0.116 R)
• M5: 2,321,310 km (0.106 R)
• M6: 4,269,822 km (0.083 R)
• M7: 4,822,886 km (0.09 R)
• M8: 5,116,696 km (0.1 R)
• M9: 5,365,776 km (0.082 R)
• M10: 6,669,671 km (0.075 R)
• M11: 7,102,159 km (0.098 R)
• M12: 7,695,614 km (0.09 R)
• M13: 10,358,605 km (0.047 R)
• M14: 10,983,625 km (0.116 R)
• M15: 11,351,935 km (0.112 R)
• M16: 11,633,329 km (0.035 R)
• M17: 12,308,464 km (0.071 R)
• M18: 16,554,201 km (0.096 R)
• M19: 20,210,224 km (0.11 R)
• M20: 20,762,988 km (0.102 R)
• M21: 21,183,956 km (0.044 R)
• M22: 24,996,159 km (0.087 R)
• M23: 25,233,570 km (0.065 R)
• M24: 26,280,157 km (0.063 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 148.8

Radius: 7.1

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.38 AU - 9.9 AU

Year: 16936 Days

Day: 17.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 129.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 40,939,047 km

• M1: 88,263 km (0.1 R)
• M2: 330,462 km (0.084 R)
• M3: 757,713 km (0.118 R)
• M4: 1,202,318 km (0.055 R)
• M5: 1,624,034 km (0.114 R)
• M6: 2,010,147 km (0.11 R)
• M7: 2,474,498 km (0.055 R)
• M8: 2,801,968 km (0.098 R)
• M9: 3,450,774 km (0.057 R)
• M10: 4,064,574 km (0.102 R)
• M11: 4,806,580 km (0.045 R)
• M12: 7,109,639 km (0.053 R)
• M13: 7,339,421 km (0.08 R)
• M14: 10,498,779 km (0.1 R)
• M15: 12,763,840 km (0.119 R)
• M16: 13,161,022 km (0.089 R)
• M17: 13,920,680 km (0.032 R)
• M18: 15,145,887 km (0.064 R)
• M19: 19,548,702 km (0.069 R)
• M20: 25,981,111 km (0.117 R)
• M21: 29,179,065 km (0.086 R)
• M22: 29,868,561 km (0.119 R)
• M23: 31,280,017 km (0.119 R)
• M24: 38,536,711 km (0.102 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: 308 - 17,865 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit