🌌 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 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.46 AU - 0.68 AU

Year: 274 Days

Day: 33.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,709,175 km

• M1: 46,974 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.7

Radius: 12.6

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.64 AU - 0.94 AU

Year: 446 Days

Day: 5.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,709,175 km

• M1: 157,227 km (0.089 R)
• M2: 586,124 km (0.038 R)
• M3: 1,171,651 km (0.109 R)
• M4: 1,617,901 km (0.094 R)
• M5: 2,636,513 km (0.06 R)
• M6: 3,561,776 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409

Radius: 8

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.77 AU - 1.21 AU

Year: 626 Days

Day: 10.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,709,175 km

• M1: 99,782 km (0.094 R)
• M2: 361,279 km (0.118 R)
• M3: 629,657 km (0.118 R)
• M4: 1,211,743 km (0.053 R)
• M5: 2,078,513 km (0.072 R)
• M6: 2,428,572 km (0.082 R)
• M7: 2,700,840 km (0.064 R)
• M8: 3,038,931 km (0.103 R)
• M9: 3,404,848 km (0.027 R)
• M10: 3,656,471 km (0.098 R)
• M11: 3,974,815 km (0.105 R)
• M12: 4,225,691 km (0.119 R)
• M13: 4,899,629 km (0.033 R)
• M14: 5,421,128 km (0.103 R)
• M15: 5,997,079 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.1

Radius: 11.2

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.97 AU - 1.33 AU

Year: 784 Days

Day: 13.2 Hours

Environment

Temp: -165 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,709,175 km

• M1: 139,874 km (0.073 R)
• M2: 513,869 km (0.1 R)
• M3: 898,036 km (0.041 R)
• M4: 1,446,013 km (0.111 R)
• M5: 2,021,366 km (0.106 R)
• M6: 2,525,212 km (0.04 R)
• M7: 3,758,647 km (0.087 R)
• M8: 4,243,643 km (0.051 R)
• M9: 4,671,194 km (0.097 R)
• M10: 5,819,956 km (0.084 R)
• M11: 6,228,807 km (0.093 R)
• M12: 6,677,750 km (0.118 R)
• M13: 7,126,244 km (0.102 R)
• M14: 7,504,128 km (0.117 R)
• M15: 7,918,664 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.5

Radius: 13.7

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.42 AU - 3.36 AU

Year: 3124 Days

Day: 9.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,709,175 km

• M1: 170,392 km (0.104 R)
• M2: 597,344 km (0.073 R)
• M3: 1,055,712 km (0.109 R)
• M4: 1,656,348 km (0.11 R)
• M5: 2,331,632 km (0.101 R)
• M6: 3,850,350 km (0.077 R)
• M7: 4,420,168 km (0.117 R)
• M8: 4,896,338 km (0.066 R)
• M9: 6,505,413 km (0.06 R)
• M10: 7,092,285 km (0.116 R)
• M11: 7,918,066 km (0.055 R)
• M12: 8,479,656 km (0.095 R)
• M13: 10,449,411 km (0.118 R)
• M14: 11,652,477 km (0.065 R)
• M15: 12,613,943 km (0.039 R)
• M16: 14,027,792 km (0.113 R)
• M17: 16,315,443 km (0.114 R)
• M18: 17,401,524 km (0.107 R)
• M19: 21,082,678 km (0.113 R)
• M20: 22,579,106 km (0.119 R)
• M21: 23,353,275 km (0.088 R)
• M22: 24,658,367 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.7

Radius: 11.4

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.16 AU - 3.52 AU

Year: 3881 Days

Day: 9.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,709,175 km

• M1: 141,819 km (0.09 R)
• M2: 688,749 km (0.08 R)
• M3: 1,344,286 km (0.114 R)
• M4: 1,897,799 km (0.049 R)
• M5: 2,512,047 km (0.093 R)
• M6: 3,003,177 km (0.112 R)
• M7: 3,412,926 km (0.114 R)
• M8: 3,802,179 km (0.084 R)
• M9: 4,965,004 km (0.06 R)
• M10: 5,591,370 km (0.045 R)
• M11: 6,269,647 km (0.111 R)
• M12: 7,980,598 km (0.108 R)
• M13: 8,978,715 km (0.103 R)
• M14: 9,983,713 km (0.1 R)
• M15: 11,222,234 km (0.034 R)
• M16: 12,735,117 km (0.116 R)
• M17: 13,816,560 km (0.074 R)
• M18: 14,284,801 km (0.032 R)
• M19: 15,552,045 km (0.063 R)
• M20: 17,266,736 km (0.044 R)
• M21: 18,086,383 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.9

Radius: 13.7

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 2.78 AU - 4.48 AU

Year: 4397 Days

Day: 11.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,709,175 km

• M1: 170,392 km (0.12 R)
• M2: 644,617 km (0.087 R)
• M3: 1,176,886 km (0.097 R)
• M4: 1,611,917 km (0.114 R)
• M5: 2,046,948 km (0.109 R)
• M6: 2,561,415 km (0.081 R)
• M7: 3,017,090 km (0.082 R)
• M8: 3,487,575 km (0.102 R)
• M9: 5,151,552 km (0.094 R)
• M10: 7,003,275 km (0.054 R)
• M11: 7,630,090 km (0.084 R)
• M12: 9,226,299 km (0.108 R)
• M13: 10,021,412 km (0.049 R)
• M14: 11,931,627 km (0.036 R)
• M15: 12,539,892 km (0.054 R)
• M16: 13,070,665 km (0.11 R)
• M17: 14,177,241 km (0.094 R)
• M18: 14,806,748 km (0.115 R)
• M19: 17,453,434 km (0.088 R)
• M20: 18,732,346 km (0.069 R)
• M21: 20,072,893 km (0.106 R)
• M22: 24,181,299 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.4

Radius: 4.3

Gravity: 32.53 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.26 AU - 7.76 AU

Year: 11801 Days

Day: 23 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,709,175 km

• M1: 104,719 km (0.081 R)
• M2: 494,571 km (0.026 R)
• M3: 2,482,277 km (0.115 R)
• M4: 2,885,145 km (0.104 R)
• M5: 3,330,348 km (0.052 R)
• M6: 3,956,265 km (0.101 R)
• M7: 4,326,370 km (0.056 R)
• M8: 6,114,215 km (0.094 R)
• M9: 7,169,927 km (0.109 R)
• M10: 8,071,104 km (0.099 R)
• M11: 8,806,527 km (0.054 R)
• M12: 10,676,351 km (0.093 R)
• M13: 15,042,814 km (0.091 R)
• M14: 15,178,649 km (0.09 R)
• M15: 16,011,011 km (0.066 R)
• M16: 19,084,649 km (0.074 R)
• M17: 20,633,586 km (0.096 R)
• M18: 22,529,439 km (0.103 R)
• M19: 23,519,628 km (0.096 R)
• M20: 28,803,574 km (0.084 R)
• M21: 29,541,690 km (0.089 R)
• M22: 39,019,912 km (0.043 R)
• M23: 46,207,491 km (0.061 R)
• M24: 48,984,776 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 712.3

Radius: 7.7

Gravity: 12.01 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.8 AU - 9.86 AU

Year: 19596 Days

Day: 22.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 176.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 45,709,175 km

• M1: 95,892 km (0.08 R)
• M2: 406,906 km (0.082 R)
• M3: 1,370,017 km (0.033 R)
• M4: 4,497,810 km (0.076 R)
• M5: 5,642,682 km (0.106 R)
• M6: 7,155,865 km (0.111 R)
• M7: 7,980,897 km (0.093 R)
• M8: 8,338,585 km (0.113 R)
• M9: 11,338,920 km (0.081 R)
• M10: 14,013,431 km (0.104 R)
• M11: 15,535,888 km (0.088 R)
• M12: 16,582,774 km (0.12 R)
• M13: 18,196,487 km (0.109 R)
• M14: 19,177,101 km (0.088 R)
• M15: 20,005,274 km (0.119 R)
• M16: 22,229,795 km (0.116 R)
• M17: 26,370,065 km (0.061 R)
• M18: 27,856,919 km (0.045 R)
• M19: 28,799,236 km (0.102 R)
• M20: 29,884,568 km (0.111 R)
• M21: 32,781,681 km (0.061 R)
• M22: 33,567,069 km (0.108 R)
• M23: 39,273,779 km (0.093 R)
• M24: 39,567,590 km (0.09 R)
• M25: 40,011,147 km (0.116 R)
• M26: 52,561,511 km (0.112 R)
• M27: 57,706,631 km (0.114 R)
• M28: 61,778,535 km (0.057 R)
• M29: 62,775,605 km (0.105 R)
• M30: 63,580,890 km (0.042 R)
• M31: 67,500,354 km (0.099 R)
• M32: 69,411,916 km (0.088 R)
• M33: 72,016,415 km (0.111 R)
• M34: 73,342,750 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.4

Radius: 3.1

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 11.4 AU - 11.46 AU

Year: 24570 Days

Day: 23.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 97.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 45,709,175 km

• M1: 46,076 km (0.083 R)
• M2: 169,345 km (0.109 R)
• M3: 270,922 km (0.076 R)
• M4: 426,354 km (0.112 R)
• M5: 927,507 km (0.09 R)
• M6: 1,321,697 km (0.106 R)
• M7: 1,466,059 km (0.037 R)
• M8: 1,786,498 km (0.073 R)
• M9: 2,604,349 km (0.12 R)
• M10: 7,110,836 km (0.12 R)
• M11: 8,496,411 km (0.108 R)
• M12: 9,041,995 km (0.086 R)
• M13: 11,081,911 km (0.089 R)
• M14: 13,288,330 km (0.088 R)
• M15: 22,470,498 km (0.083 R)
• M16: 24,580,426 km (0.083 R)
• M17: 24,762,038 km (0.084 R)
• M18: 25,497,311 km (0.102 R)
• M19: 32,126,592 km (0.1 R)
• M20: 37,489,675 km (0.061 R)
• M21: 38,948,554 km (0.115 R)
• M22: 39,816,969 km (0.044 R)
• M23: 44,487,116 km (0.026 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 527 - 14,677 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit