🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.62 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.6

Radius: 12.2

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.15 AU - 1.31 AU

Year: 959 Days

Day: 8.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,311,639 km

• M1: 151,692 km (0.117 R)
• M2: 569,070 km (0.118 R)
• M3: 2,246,212 km (0.113 R)
• M4: 3,399,911 km (0.11 R)
• M5: 4,028,671 km (0.086 R)
• M6: 5,133,601 km (0.049 R)
• M7: 5,868,874 km (0.113 R)
• M8: 6,450,511 km (0.078 R)
• M9: 6,964,379 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.4

Radius: 11.3

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.14 AU - 3.32 AU

Year: 4080 Days

Day: 9.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,311,639 km

• M1: 142,866 km (0.095 R)
• M2: 502,948 km (0.11 R)
• M3: 1,444,966 km (0.088 R)
• M4: 2,832,935 km (0.109 R)
• M5: 3,724,089 km (0.11 R)
• M6: 4,257,555 km (0.111 R)
• M7: 4,768,731 km (0.068 R)
• M8: 5,140,482 km (0.054 R)
• M9: 6,764,816 km (0.06 R)
• M10: 7,829,205 km (0.092 R)
• M11: 8,313,154 km (0.115 R)
• M12: 10,207,063 km (0.082 R)
• M13: 11,168,528 km (0.045 R)
• M14: 12,007,323 km (0.045 R)
• M15: 14,010,439 km (0.074 R)
• M16: 14,364,836 km (0.076 R)
• M17: 16,561,980 km (0.112 R)
• M18: 18,607,432 km (0.089 R)
• M19: 21,145,509 km (0.081 R)
• M20: 22,222,464 km (0.038 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.1

Radius: 12.7

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.59 AU - 5.13 AU

Year: 7531 Days

Day: 9.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,311,639 km

• M1: 158,275 km (0.098 R)
• M2: 832,662 km (0.092 R)
• M3: 2,260,125 km (0.083 R)
• M4: 3,019,184 km (0.106 R)
• M5: 3,790,361 km (0.117 R)
• M6: 4,542,091 km (0.086 R)
• M7: 5,229,194 km (0.072 R)
• M8: 5,696,537 km (0.112 R)
• M9: 6,496,587 km (0.102 R)
• M10: 7,370,089 km (0.096 R)
• M11: 8,283,683 km (0.117 R)
• M12: 9,350,615 km (0.103 R)
• M13: 11,896,172 km (0.099 R)
• M14: 13,607,871 km (0.105 R)
• M15: 15,146,186 km (0.043 R)
• M16: 15,872,184 km (0.081 R)
• M17: 17,273,318 km (0.109 R)
• M18: 17,819,500 km (0.108 R)
• M19: 20,054,043 km (0.069 R)
• M20: 22,469,451 km (0.112 R)
• M21: 24,612,889 km (0.048 R)
• M22: 26,407,315 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.9

Radius: 12.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 5.18 AU - 5.36 AU

Year: 8504 Days

Day: 6.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,311,639 km

• M1: 168,298 km (0.043 R)
• M2: 1,559,707 km (0.108 R)
• M3: 2,719,390 km (0.068 R)
• M4: 3,417,563 km (0.108 R)
• M5: 3,980,201 km (0.084 R)
• M6: 4,854,451 km (0.117 R)
• M7: 5,383,279 km (0.105 R)
• M8: 5,788,839 km (0.044 R)
• M9: 7,582,368 km (0.116 R)
• M10: 8,337,239 km (0.117 R)
• M11: 9,675,990 km (0.107 R)
• M12: 11,004,120 km (0.072 R)
• M13: 12,612,596 km (0.111 R)
• M14: 17,346,172 km (0.063 R)
• M15: 21,089,111 km (0.113 R)
• M16: 23,477,142 km (0.077 R)
• M17: 24,143,301 km (0.087 R)
• M18: 24,566,065 km (0.113 R)
• M19: 27,025,454 km (0.079 R)
• M20: 29,452,081 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.3

Radius: 14.2

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 4.44 AU - 6.4 AU

Year: 8870 Days

Day: 13.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 78,311,639 km

• M1: 176,974 km (0.113 R)
• M2: 800,199 km (0.061 R)
• M3: 1,299,706 km (0.109 R)
• M4: 1,842,298 km (0.083 R)
• M5: 3,173,270 km (0.106 R)
• M6: 3,788,267 km (0.12 R)
• M7: 6,266,655 km (0.06 R)
• M8: 9,774,874 km (0.108 R)
• M9: 10,772,243 km (0.105 R)
• M10: 12,794,956 km (0.113 R)
• M11: 13,683,268 km (0.106 R)
• M12: 17,942,170 km (0.078 R)
• M13: 19,822,765 km (0.07 R)
• M14: 21,419,274 km (0.103 R)
• M15: 22,927,968 km (0.058 R)
• M16: 25,876,542 km (0.106 R)
• M17: 27,977,495 km (0.104 R)
• M18: 28,768,867 km (0.083 R)
• M19: 29,372,196 km (0.089 R)
• M20: 30,917,542 km (0.108 R)
• M21: 31,657,004 km (0.116 R)
• M22: 32,408,135 km (0.111 R)
• M23: 34,960,424 km (0.093 R)
• M24: 36,578,026 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.2

Radius: 3.5

Gravity: 55.53 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 5.46 AU - 6.02 AU

Year: 9667 Days

Day: 20.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 78,311,639 km

• M1: 43,683 km (0.12 R)
• M2: 191,934 km (0.11 R)
• M3: 311,463 km (0.114 R)
• M4: 554,559 km (0.063 R)
• M5: 1,330,075 km (0.051 R)
• M6: 1,489,546 km (0.109 R)
• M7: 2,028,996 km (0.086 R)
• M8: 2,606,444 km (0.076 R)
• M9: 2,729,862 km (0.048 R)
• M10: 3,215,905 km (0.111 R)
• M11: 4,022,388 km (0.111 R)
• M12: 4,770,227 km (0.119 R)
• M13: 5,144,820 km (0.094 R)
• M14: 5,777,619 km (0.088 R)
• M15: 6,130,820 km (0.066 R)
• M16: 7,156,014 km (0.096 R)
• M17: 7,439,353 km (0.119 R)
• M18: 8,512,717 km (0.102 R)
• M19: 9,109,912 km (0.086 R)
• M20: 9,734,333 km (0.071 R)
• M21: 10,032,033 km (0.112 R)
• M22: 10,908,228 km (0.096 R)
• M23: 14,600,902 km (0.112 R)
• M24: 15,588,697 km (0.071 R)
• M25: 16,831,705 km (0.066 R)
• M26: 17,116,689 km (0.07 R)
• M27: 22,379,991 km (0.08 R)
• M28: 29,033,057 km (0.094 R)
• M29: 29,442,806 km (0.048 R)
• M30: 29,752,623 km (0.091 R)
• M31: 30,801,154 km (0.04 R)
• M32: 32,091,586 km (0.091 R)
• M33: 36,296,333 km (0.12 R)
• M34: 36,414,814 km (0.093 R)
• M35: 41,497,402 km (0.035 R)
• M36: 44,410,073 km (0.116 R)
• M37: 44,817,577 km (0.06 R)
• M38: 44,953,861 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.2

Radius: 3

Gravity: 94.8 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.48 AU - 9.06 AU

Year: 13779 Days

Day: 23.4 Hours

Environment

Temp: -234 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 78,311,639 km

• M1: 37,399 km (0.087 R)
• M2: 289,023 km (0.042 R)
• M3: 461,360 km (0.114 R)
• M4: 930,648 km (0.105 R)
• M5: 1,777,821 km (0.069 R)
• M6: 2,590,287 km (0.116 R)
• M7: 3,115,376 km (0.091 R)
• M8: 3,707,933 km (0.073 R)
• M9: 4,436,026 km (0.036 R)
• M10: 4,971,287 km (0.077 R)
• M11: 6,290,142 km (0.114 R)
• M12: 7,228,719 km (0.117 R)
• M13: 8,503,442 km (0.1 R)
• M14: 9,115,148 km (0.087 R)
• M15: 9,538,959 km (0.115 R)
• M16: 10,368,778 km (0.066 R)
• M17: 10,889,079 km (0.104 R)
• M18: 11,671,177 km (0.054 R)
• M19: 14,595,067 km (0.025 R)
• M20: 16,378,872 km (0.073 R)
• M21: 18,302,701 km (0.114 R)
• M22: 18,469,503 km (0.105 R)
• M23: 18,637,352 km (0.12 R)
• M24: 19,061,312 km (0.076 R)
• M25: 20,016,644 km (0.106 R)
• M26: 21,186,350 km (0.109 R)
• M27: 25,275,607 km (0.106 R)
• M28: 27,504,466 km (0.049 R)
• M29: 29,516,258 km (0.085 R)
• M30: 30,091,911 km (0.034 R)
• M31: 31,984,623 km (0.076 R)
• M32: 33,829,614 km (0.047 R)
• M33: 38,000,402 km (0.062 R)
• M34: 41,058,183 km (0.111 R)
• M35: 41,487,529 km (0.112 R)
• M36: 44,126,286 km (0.099 R)
• M37: 45,030,156 km (0.05 R)
• M38: 54,412,186 km (0.102 R)
• M39: 62,340,125 km (0.077 R)
• M40: 63,287,080 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 621.2

Radius: 3.7

Gravity: 45.38 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 9.4 AU - 10.42 AU

Year: 21929 Days

Day: 17.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 78,311,639 km

• M1: 49,068 km (0.08 R)
• M2: 217,964 km (0.102 R)
• M3: 525,687 km (0.109 R)
• M4: 913,893 km (0.108 R)
• M5: 1,603,689 km (0.099 R)
• M6: 2,223,174 km (0.092 R)
• M7: 2,423,037 km (0.096 R)
• M8: 2,833,084 km (0.116 R)
• M9: 3,149,334 km (0.091 R)
• M10: 4,306,773 km (0.08 R)
• M11: 4,443,057 km (0.107 R)
• M12: 5,927,816 km (0.08 R)
• M13: 6,989,512 km (0.097 R)
• M14: 10,489,204 km (0.1 R)
• M15: 11,114,374 km (0.056 R)
• M16: 14,770,396 km (0.117 R)
• M17: 15,080,812 km (0.068 R)
• M18: 15,554,738 km (0.101 R)
• M19: 19,062,209 km (0.108 R)
• M20: 21,341,931 km (0.053 R)
• M21: 24,982,396 km (0.085 R)
• M22: 28,414,769 km (0.09 R)
• M23: 28,654,126 km (0.064 R)
• M24: 33,997,462 km (0.112 R)
• M25: 34,538,558 km (0.107 R)
• M26: 34,811,275 km (0.084 R)
• M27: 39,668,867 km (0.084 R)
• M28: 40,570,494 km (0.1 R)
• M29: 45,610,895 km (0.103 R)
• M30: 52,657,852 km (0.07 R)
• M31: 60,791,937 km (0.118 R)
• M32: 63,406,609 km (0.062 R)
• M33: 70,159,606 km (0.118 R)
• M34: 70,596,881 km (0.116 R)
• M35: 72,587,280 km (0.053 R)
• M36: 77,376,207 km (0.093 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 10,814 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit