🌌 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: 923.8

Radius: 12.3

Gravity: 6.11 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.22 AU - 1.24 AU

Year: 881 Days

Day: 7.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,822,384 km

• M1: 153,039 km (0.048 R)
• M2: 551,867 km (0.089 R)
• M3: 1,088,025 km (0.099 R)
• M4: 1,597,107 km (0.093 R)
• M5: 2,231,851 km (0.119 R)
• M6: 2,723,878 km (0.086 R)
• M7: 3,136,469 km (0.092 R)
• M8: 3,757,450 km (0.105 R)
• M9: 4,373,195 km (0.096 R)
• M10: 5,112,208 km (0.082 R)
• M11: 6,038,518 km (0.114 R)
• M12: 6,769,752 km (0.117 R)
• M13: 7,608,996 km (0.113 R)
• M14: 8,409,046 km (0.076 R)
• M15: 9,321,443 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 757

Radius: 10.5

Gravity: 6.87 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.26 AU - 1.7 AU

Year: 1163 Days

Day: 8.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,822,384 km

• M1: 130,749 km (0.067 R)
• M2: 465,100 km (0.117 R)
• M3: 872,156 km (0.1 R)
• M4: 1,252,134 km (0.097 R)
• M5: 1,652,009 km (0.094 R)
• M6: 2,303,807 km (0.071 R)
• M7: 2,912,820 km (0.12 R)
• M8: 3,410,981 km (0.075 R)
• M9: 4,415,531 km (0.104 R)
• M10: 4,977,121 km (0.094 R)
• M11: 6,311,534 km (0.055 R)
• M12: 7,555,740 km (0.059 R)
• M13: 8,112,992 km (0.119 R)
• M14: 8,869,658 km (0.074 R)
• M15: 9,857,602 km (0.071 R)
• M16: 10,917,204 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.7

Radius: 10.6

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.16 AU - 1.86 AU

Year: 1198 Days

Day: 14.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,822,384 km

• M1: 131,796 km (0.087 R)
• M2: 565,779 km (0.094 R)
• M3: 897,138 km (0.098 R)
• M4: 1,246,449 km (0.083 R)
• M5: 1,617,901 km (0.089 R)
• M6: 2,245,015 km (0.084 R)
• M7: 2,778,032 km (0.116 R)
• M8: 3,321,073 km (0.084 R)
• M9: 3,726,782 km (0.059 R)
• M10: 4,548,374 km (0.07 R)
• M11: 5,166,961 km (0.086 R)
• M12: 6,321,557 km (0.078 R)
• M13: 6,758,084 km (0.089 R)
• M14: 7,092,435 km (0.093 R)
• M15: 9,844,138 km (0.094 R)
• M16: 10,306,097 km (0.096 R)
• M17: 10,944,431 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 759

Radius: 11.4

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.44 AU - 1.66 AU

Year: 1246 Days

Day: 12.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,822,384 km

• M1: 141,819 km (0.116 R)
• M2: 661,671 km (0.104 R)
• M3: 1,190,799 km (0.111 R)
• M4: 2,359,607 km (0.059 R)
• M5: 2,877,365 km (0.114 R)
• M6: 3,439,255 km (0.07 R)
• M7: 3,903,607 km (0.082 R)
• M8: 4,464,449 km (0.116 R)
• M9: 5,260,908 km (0.119 R)
• M10: 5,813,373 km (0.086 R)
• M11: 6,310,936 km (0.095 R)
• M12: 7,680,055 km (0.083 R)
• M13: 9,118,289 km (0.054 R)
• M14: 9,791,181 km (0.113 R)
• M15: 10,333,772 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.8

Radius: 10.7

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.42 AU - 2.84 AU

Year: 2754 Days

Day: 13.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,822,384 km

• M1: 134,040 km (0.086 R)
• M2: 946,955 km (0.056 R)
• M3: 1,496,577 km (0.044 R)
• M4: 2,116,361 km (0.112 R)
• M5: 3,081,417 km (0.075 R)
• M6: 4,002,491 km (0.101 R)
• M7: 4,840,688 km (0.076 R)
• M8: 6,962,734 km (0.099 R)
• M9: 7,953,072 km (0.118 R)
• M10: 8,975,573 km (0.074 R)
• M11: 10,703,877 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.8

Radius: 11.2

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 3.89 AU - 4.09 AU

Year: 5146 Days

Day: 9.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,822,384 km

• M1: 139,276 km (0.091 R)
• M2: 551,418 km (0.087 R)
• M3: 1,365,978 km (0.118 R)
• M4: 1,902,137 km (0.032 R)
• M5: 2,375,913 km (0.115 R)
• M6: 2,864,350 km (0.113 R)
• M7: 3,330,497 km (0.077 R)
• M8: 3,808,463 km (0.12 R)
• M9: 4,611,354 km (0.057 R)
• M10: 5,111,909 km (0.101 R)
• M11: 6,720,834 km (0.032 R)
• M12: 7,305,612 km (0.091 R)
• M13: 10,214,991 km (0.1 R)
• M14: 11,108,091 km (0.08 R)
• M15: 13,363,727 km (0.066 R)
• M16: 15,306,555 km (0.115 R)
• M17: 17,702,664 km (0.094 R)
• M18: 19,104,845 km (0.106 R)
• M19: 19,568,897 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 812.2

Radius: 8.9

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.5 AU - 4.94 AU

Year: 5597 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,822,384 km

• M1: 110,702 km (0.12 R)
• M2: 556,354 km (0.086 R)
• M3: 872,754 km (0.055 R)
• M4: 1,194,539 km (0.078 R)
• M5: 1,951,055 km (0.103 R)
• M6: 3,564,020 km (0.087 R)
• M7: 4,481,803 km (0.114 R)
• M8: 5,166,362 km (0.076 R)
• M9: 6,916,658 km (0.033 R)
• M10: 11,790,855 km (0.086 R)
• M11: 13,199,469 km (0.115 R)
• M12: 13,692,843 km (0.06 R)
• M13: 14,312,776 km (0.056 R)
• M14: 16,036,593 km (0.051 R)
• M15: 16,409,839 km (0.075 R)
• M16: 18,094,760 km (0.068 R)
• M17: 18,567,340 km (0.113 R)
• M18: 22,186,411 km (0.113 R)
• M19: 27,471,106 km (0.082 R)
• M20: 28,729,523 km (0.104 R)
• M21: 29,465,694 km (0.094 R)
• M22: 30,025,938 km (0.082 R)
• M23: 31,554,828 km (0.105 R)
• M24: 33,842,629 km (0.073 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.5

Radius: 13.6

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.64 AU - 5.06 AU

Year: 5858 Days

Day: 6.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 99.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,822,384 km

• M1: 169,195 km (0.098 R)
• M2: 595,549 km (0.087 R)
• M3: 1,476,381 km (0.077 R)
• M4: 2,069,387 km (0.072 R)
• M5: 2,555,880 km (0.111 R)
• M6: 4,108,706 km (0.111 R)
• M7: 4,569,018 km (0.082 R)
• M8: 5,298,308 km (0.102 R)
• M9: 7,118,315 km (0.098 R)
• M10: 8,605,318 km (0.108 R)
• M11: 10,332,127 km (0.046 R)
• M12: 11,057,826 km (0.11 R)
• M13: 16,034,797 km (0.113 R)
• M14: 18,020,709 km (0.1 R)
• M15: 18,821,806 km (0.11 R)
• M16: 21,572,911 km (0.095 R)
• M17: 23,044,505 km (0.112 R)
• M18: 24,062,219 km (0.107 R)
• M19: 25,721,559 km (0.1 R)
• M20: 26,187,107 km (0.09 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 502

Radius: 6.8

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 7.64 AU - 7.8 AU

Year: 13850 Days

Day: 22.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,822,384 km

• M1: 85,869 km (0.114 R)
• M2: 308,321 km (0.118 R)
• M3: 533,017 km (0.048 R)
• M4: 753,973 km (0.052 R)
• M5: 1,026,840 km (0.052 R)
• M6: 1,744,311 km (0.098 R)
• M7: 2,046,349 km (0.095 R)
• M8: 2,889,184 km (0.078 R)
• M9: 3,120,163 km (0.105 R)
• M10: 3,971,973 km (0.062 R)
• M11: 4,317,245 km (0.106 R)
• M12: 4,651,297 km (0.12 R)
• M13: 5,035,165 km (0.092 R)
• M14: 5,544,695 km (0.063 R)
• M15: 6,547,450 km (0.11 R)
• M16: 9,398,935 km (0.058 R)
• M17: 10,762,520 km (0.076 R)
• M18: 14,204,168 km (0.079 R)
• M19: 15,921,402 km (0.111 R)
• M20: 16,136,374 km (0.071 R)
• M21: 19,030,046 km (0.115 R)
• M22: 21,633,049 km (0.075 R)
• M23: 22,882,789 km (0.115 R)
• M24: 23,711,113 km (0.081 R)
• M25: 28,259,786 km (0.095 R)
• M26: 30,738,174 km (0.059 R)
• M27: 35,023,105 km (0.11 R)
• M28: 41,966,391 km (0.104 R)
• M29: 45,758,997 km (0.113 R)
• M30: 47,663,826 km (0.084 R)
• M31: 49,926,793 km (0.075 R)
• M32: 52,260,221 km (0.094 R)
• M33: 52,576,770 km (0.109 R)
• M34: 53,053,987 km (0.098 R)

Asteroid Belt

Center: 9.27 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 534

Radius: 4.2

Gravity: 30.27 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 8.57 AU - 13.07 AU

Year: 22980 Days

Day: 22.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 76,822,384 km

• M1: 52,658 km (0.093 R)
• M2: 422,764 km (0.119 R)
• M3: 1,497,175 km (0.072 R)
• M4: 2,317,271 km (0.077 R)
• M5: 3,785,275 km (0.078 R)
• M6: 4,100,627 km (0.027 R)
• M7: 4,855,797 km (0.108 R)
• M8: 7,427,684 km (0.12 R)
• M9: 7,573,542 km (0.094 R)
• M10: 7,771,011 km (0.118 R)
• M11: 7,971,921 km (0.084 R)
• M12: 10,057,166 km (0.092 R)
• M13: 14,723,273 km (0.053 R)
• M14: 17,137,034 km (0.103 R)
• M15: 18,172,252 km (0.061 R)
• M16: 18,975,443 km (0.101 R)
• M17: 19,248,309 km (0.084 R)
• M18: 20,556,842 km (0.031 R)
• M19: 21,428,549 km (0.078 R)
• M20: 28,349,844 km (0.04 R)
• M21: 28,945,991 km (0.114 R)
• M22: 37,188,834 km (0.114 R)
• M23: 39,654,057 km (0.089 R)
• M24: 47,198,727 km (0.089 R)
• M25: 49,395,123 km (0.091 R)
• M26: 56,955,649 km (0.104 R)
• M27: 60,027,342 km (0.067 R)
• M28: 69,901,849 km (0.076 R)
• M29: 75,448,789 km (0.044 R)
• M30: 76,822,396 km (0.071 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 215 - 16,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit