🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.5

Radius: 10.2

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.61 AU - 0.99 AU

Year: 503 Days

Day: 5.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,604,620 km

• M1: 126,859 km (0.078 R)
• M2: 499,956 km (0.058 R)
• M3: 822,788 km (0.108 R)
• M4: 1,190,649 km (0.11 R)
• M5: 1,583,194 km (0.089 R)
• M6: 1,961,378 km (0.116 R)
• M7: 2,486,616 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.3

Radius: 8.4

Gravity: 9.68 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.94 AU - 1.16 AU

Year: 756 Days

Day: 13.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,604,620 km

• M1: 104,419 km (0.097 R)
• M2: 522,695 km (0.102 R)
• M3: 791,373 km (0.107 R)
• M4: 1,392,756 km (0.115 R)
• M5: 2,210,009 km (0.111 R)
• M6: 2,637,710 km (0.085 R)
• M7: 3,395,872 km (0.104 R)
• M8: 4,820,791 km (0.109 R)
• M9: 5,137,041 km (0.05 R)
• M10: 5,485,904 km (0.11 R)
• M11: 6,757,336 km (0.099 R)
• M12: 8,043,279 km (0.119 R)
• M13: 8,313,902 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.2

Radius: 8.9

Gravity: 11.67 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.96 AU - 1.14 AU

Year: 756 Days

Day: 6.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,604,620 km

• M1: 110,702 km (0.116 R)
• M2: 465,848 km (0.083 R)
• M3: 924,515 km (0.091 R)
• M4: 1,205,310 km (0.117 R)
• M5: 1,512,285 km (0.089 R)
• M6: 1,835,267 km (0.082 R)
• M7: 2,122,644 km (0.061 R)
• M8: 2,519,079 km (0.097 R)
• M9: 3,253,454 km (0.109 R)
• M10: 4,867,915 km (0.076 R)
• M11: 5,197,180 km (0.102 R)
• M12: 6,044,352 km (0.102 R)
• M13: 6,958,096 km (0.064 R)
• M14: 7,471,965 km (0.09 R)
• M15: 7,985,983 km (0.102 R)
• M16: 9,194,136 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.3

Radius: 12.3

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 2.45 AU - 3.49 AU

Year: 3598 Days

Day: 12.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 104.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 43,604,620 km

• M1: 237,262 km (0.051 R)
• M2: 1,140,534 km (0.087 R)
• M3: 2,055,624 km (0.09 R)
• M4: 2,817,078 km (0.104 R)
• M5: 3,758,347 km (0.091 R)
• M6: 4,571,113 km (0.079 R)
• M7: 6,458,140 km (0.072 R)
• M8: 7,986,731 km (0.119 R)
• M9: 12,186,991 km (0.11 R)
• M10: 15,115,668 km (0.059 R)
• M11: 16,224,188 km (0.105 R)
• M12: 18,543,703 km (0.065 R)
• M13: 19,201,934 km (0.081 R)
• M14: 20,312,548 km (0.044 R)
• M15: 22,593,916 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 367.4

Radius: 14.7

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.62 AU - 4.92 AU

Year: 7323 Days

Day: 8.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 43,604,620 km

• M1: 183,706 km (0.108 R)
• M2: 748,588 km (0.088 R)
• M3: 1,376,151 km (0.045 R)
• M4: 2,496,788 km (0.117 R)
• M5: 3,407,241 km (0.082 R)
• M6: 4,044,678 km (0.11 R)
• M7: 4,734,773 km (0.074 R)
• M8: 6,163,133 km (0.109 R)
• M9: 7,680,055 km (0.098 R)
• M10: 8,663,362 km (0.113 R)
• M11: 11,441,844 km (0.119 R)
• M12: 13,033,714 km (0.099 R)
• M13: 15,283,966 km (0.089 R)
• M14: 15,988,871 km (0.096 R)
• M15: 18,496,879 km (0.101 R)
• M16: 19,162,739 km (0.084 R)
• M17: 22,135,847 km (0.074 R)
• M18: 22,886,679 km (0.088 R)
• M19: 23,422,389 km (0.089 R)
• M20: 27,068,538 km (0.118 R)
• M21: 30,521,406 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 87.6

Radius: 10.1

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 3.99 AU - 5.67 AU

Year: 7462 Days

Day: 10.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,604,620 km

• M1: 125,662 km (0.082 R)
• M2: 612,005 km (0.097 R)
• M3: 1,217,427 km (0.088 R)
• M4: 3,482,190 km (0.108 R)
• M5: 5,349,321 km (0.037 R)
• M6: 5,775,375 km (0.081 R)
• M7: 6,498,532 km (0.098 R)
• M8: 9,858,649 km (0.1 R)
• M9: 15,001,824 km (0.09 R)
• M10: 18,535,625 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 948.3

Radius: 7.7

Gravity: 15.99 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 5.29 AU - 6.57 AU

Year: 10151 Days

Day: 22.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 43,604,620 km

• M1: 98,435 km (0.058 R)
• M2: 379,530 km (0.058 R)
• M3: 751,131 km (0.116 R)
• M4: 1,253,032 km (0.056 R)
• M5: 1,549,984 km (0.099 R)
• M6: 2,049,042 km (0.114 R)
• M7: 2,444,878 km (0.069 R)
• M8: 2,958,896 km (0.072 R)
• M9: 3,621,016 km (0.119 R)
• M10: 4,172,285 km (0.051 R)
• M11: 4,683,909 km (0.053 R)
• M12: 5,546,191 km (0.117 R)
• M13: 6,089,681 km (0.037 R)
• M14: 9,403,423 km (0.089 R)
• M15: 10,768,653 km (0.068 R)
• M16: 11,498,541 km (0.085 R)
• M17: 12,808,570 km (0.092 R)
• M18: 13,627,768 km (0.12 R)
• M19: 17,407,657 km (0.069 R)
• M20: 18,177,039 km (0.075 R)
• M21: 19,210,760 km (0.113 R)
• M22: 20,876,832 km (0.11 R)
• M23: 21,569,470 km (0.081 R)
• M24: 25,264,388 km (0.088 R)
• M25: 26,150,306 km (0.116 R)
• M26: 27,158,745 km (0.12 R)
• M27: 29,576,247 km (0.108 R)
• M28: 34,115,944 km (0.053 R)
• M29: 35,441,232 km (0.11 R)
• M30: 37,177,165 km (0.114 R)
• M31: 39,229,648 km (0.053 R)
• M32: 44,546,805 km (0.064 R)
• M33: 45,983,693 km (0.094 R)
• M34: 47,748,499 km (0.055 R)
• M35: 50,789,225 km (0.098 R)
• M36: 52,674,308 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.3

Radius: 7.5

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 5.81 AU - 8.99 AU

Year: 14150 Days

Day: 18.7 Hours

Environment

Temp: -236 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 43,604,620 km

• M1: 93,947 km (0.042 R)
• M2: 400,025 km (0.051 R)
• M3: 675,584 km (0.105 R)
• M4: 1,236,277 km (0.118 R)
• M5: 2,041,562 km (0.108 R)
• M6: 2,284,808 km (0.091 R)
• M7: 2,958,148 km (0.111 R)
• M8: 4,043,930 km (0.095 R)
• M9: 5,181,771 km (0.094 R)
• M10: 7,248,765 km (0.106 R)
• M11: 9,051,569 km (0.115 R)
• M12: 10,715,097 km (0.105 R)
• M13: 12,343,769 km (0.117 R)
• M14: 16,357,330 km (0.12 R)
• M15: 17,125,067 km (0.115 R)
• M16: 19,034,833 km (0.039 R)
• M17: 21,991,186 km (0.115 R)
• M18: 23,359,408 km (0.104 R)
• M19: 27,122,992 km (0.107 R)
• M20: 32,780,484 km (0.077 R)
• M21: 33,220,302 km (0.086 R)
• M22: 35,825,399 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816.9

Radius: 7.6

Gravity: 14.14 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9.25 AU - 10.81 AU

Year: 22329 Days

Day: 19.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 43,604,620 km

• M1: 94,546 km (0.094 R)
• M2: 470,186 km (0.049 R)
• M3: 737,667 km (0.101 R)
• M4: 1,069,475 km (0.096 R)
• M5: 2,145,084 km (0.12 R)
• M6: 2,910,277 km (0.091 R)
• M7: 3,473,812 km (0.07 R)
• M8: 3,781,834 km (0.083 R)
• M9: 5,006,143 km (0.077 R)
• M10: 5,399,885 km (0.036 R)
• M11: 5,856,757 km (0.053 R)
• M12: 6,659,648 km (0.115 R)
• M13: 7,946,190 km (0.111 R)
• M14: 10,872,324 km (0.058 R)
• M15: 11,399,059 km (0.061 R)
• M16: 16,328,159 km (0.105 R)
• M17: 18,000,065 km (0.093 R)
• M18: 18,830,632 km (0.062 R)
• M19: 20,968,086 km (0.088 R)
• M20: 22,514,928 km (0.099 R)
• M21: 23,696,602 km (0.061 R)
• M22: 28,219,843 km (0.075 R)
• M23: 32,741,140 km (0.106 R)
• M24: 34,677,235 km (0.085 R)
• M25: 34,959,975 km (0.041 R)
• M26: 38,624,674 km (0.115 R)
• M27: 46,878,737 km (0.046 R)
• M28: 50,957,672 km (0.087 R)
• M29: 54,882,821 km (0.074 R)
• M30: 56,821,011 km (0.094 R)
• M31: 62,489,574 km (0.091 R)
• M32: 77,801,065 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.7

Radius: 3.5

Gravity: 8.22 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 8.12 AU - 12.12 AU

Year: 22630 Days

Day: 23.7 Hours

Environment

Temp: -242 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,604,620 km

• M1: 88,412 km (0.043 R)
• M2: 215,271 km (0.098 R)
• M3: 699,968 km (0.104 R)
• M4: 1,150,557 km (0.096 R)
• M5: 2,075,970 km (0.078 R)
• M6: 2,873,476 km (0.103 R)
• M7: 4,801,044 km (0.115 R)
• M8: 5,168,457 km (0.095 R)
• M9: 10,425,326 km (0.119 R)
• M10: 10,780,920 km (0.108 R)
• M11: 13,680,127 km (0.116 R)
• M12: 15,113,424 km (0.093 R)
• M13: 26,795,522 km (0.086 R)
• M14: 29,931,991 km (0.12 R)
• M15: 30,752,685 km (0.063 R)
• M16: 37,038,937 km (0.08 R)
• M17: 37,509,721 km (0.08 R)
• M18: 41,673,628 km (0.027 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 208 - 16,901 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit