🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.5 AU - 0.74 AU

Year: 315 Days

Day: 40.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 79,715,774 km

• M1: 37,549 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 674.4

Radius: 11.6

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.92 AU - 0.92 AU

Year: 570 Days

Day: 6.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,715,774 km

• M1: 144,512 km (0.104 R)
• M2: 506,090 km (0.113 R)
• M3: 876,195 km (0.065 R)
• M4: 1,391,709 km (0.084 R)
• M5: 2,347,939 km (0.051 R)
• M6: 2,801,819 km (0.111 R)
• M7: 3,192,419 km (0.1 R)
• M8: 3,779,141 km (0.108 R)
• M9: 4,605,071 km (0.112 R)
• M10: 5,152,749 km (0.104 R)
• M11: 5,635,950 km (0.116 R)
• M12: 6,957,348 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 975.1

Radius: 14.1

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.73 AU - 1.13 AU

Year: 579 Days

Day: 13.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 79,715,774 km

• M1: 175,329 km (0.108 R)
• M2: 622,477 km (0.111 R)
• M3: 1,425,518 km (0.072 R)
• M4: 2,404,187 km (0.107 R)
• M5: 3,284,870 km (0.087 R)
• M6: 3,864,711 km (0.115 R)
• M7: 5,007,041 km (0.119 R)
• M8: 5,519,264 km (0.118 R)
• M9: 6,066,493 km (0.112 R)
• M10: 6,670,569 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.5

Radius: 14.2

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.85 AU - 1.13 AU

Year: 636 Days

Day: 7.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 79,715,774 km

• M1: 184,604 km (0.107 R)
• M2: 648,806 km (0.063 R)
• M3: 1,508,994 km (0.03 R)
• M4: 2,056,223 km (0.119 R)
• M5: 4,016,553 km (0.074 R)
• M6: 4,799,249 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964

Radius: 9.3

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.91 AU - 2.69 AU

Year: 2252 Days

Day: 9.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 114.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,715,774 km

• M1: 115,639 km (0.115 R)
• M2: 417,228 km (0.098 R)
• M3: 813,214 km (0.116 R)
• M4: 1,125,126 km (0.065 R)
• M5: 1,538,764 km (0.097 R)
• M6: 2,455,649 km (0.098 R)
• M7: 2,911,324 km (0.101 R)
• M8: 3,263,178 km (0.087 R)
• M9: 4,669,249 km (0.081 R)
• M10: 5,105,925 km (0.096 R)
• M11: 6,441,684 km (0.1 R)
• M12: 7,161,100 km (0.075 R)
• M13: 7,742,737 km (0.115 R)
• M14: 8,896,585 km (0.056 R)
• M15: 9,936,291 km (0.074 R)
• M16: 13,313,463 km (0.07 R)
• M17: 13,818,056 km (0.044 R)
• M18: 14,622,893 km (0.107 R)
• M19: 15,110,881 km (0.066 R)
• M20: 16,378,124 km (0.073 R)
• M21: 18,101,791 km (0.03 R)
• M22: 18,494,486 km (0.075 R)
• M23: 19,238,585 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.5

Radius: 8.3

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.65 AU - 3.35 AU

Year: 3355 Days

Day: 10.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 79,715,774 km

• M1: 103,223 km (0.092 R)
• M2: 670,348 km (0.109 R)
• M3: 957,875 km (0.044 R)
• M4: 1,223,711 km (0.034 R)
• M5: 1,509,592 km (0.111 R)
• M6: 2,365,741 km (0.057 R)
• M7: 3,337,678 km (0.089 R)
• M8: 3,942,652 km (0.105 R)
• M9: 4,240,950 km (0.048 R)
• M10: 5,064,786 km (0.041 R)
• M11: 5,787,493 km (0.098 R)
• M12: 6,771,398 km (0.097 R)
• M13: 7,142,251 km (0.076 R)
• M14: 7,556,787 km (0.099 R)
• M15: 7,893,681 km (0.108 R)
• M16: 8,466,641 km (0.111 R)
• M17: 9,032,869 km (0.108 R)
• M18: 9,553,320 km (0.098 R)
• M19: 10,203,921 km (0.065 R)
• M20: 10,883,843 km (0.079 R)
• M21: 11,156,261 km (0.05 R)
• M22: 14,136,999 km (0.096 R)
• M23: 16,009,067 km (0.085 R)
• M24: 16,514,408 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.8

Radius: 8.3

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 2.67 AU - 3.87 AU

Year: 3818 Days

Day: 13.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 79,715,774 km

• M1: 103,223 km (0.072 R)
• M2: 530,324 km (0.033 R)
• M3: 831,166 km (0.088 R)
• M4: 1,092,064 km (0.036 R)
• M5: 1,462,020 km (0.118 R)
• M6: 1,811,929 km (0.064 R)
• M7: 2,117,408 km (0.057 R)
• M8: 2,616,467 km (0.068 R)
• M9: 3,343,213 km (0.05 R)
• M10: 3,869,798 km (0.111 R)
• M11: 5,217,675 km (0.104 R)
• M12: 6,948,522 km (0.071 R)
• M13: 7,368,892 km (0.08 R)
• M14: 8,296,100 km (0.067 R)
• M15: 8,732,327 km (0.1 R)
• M16: 9,222,110 km (0.12 R)
• M17: 11,499,289 km (0.081 R)
• M18: 11,950,177 km (0.04 R)
• M19: 15,938,008 km (0.041 R)
• M20: 17,305,930 km (0.072 R)
• M21: 18,199,778 km (0.074 R)
• M22: 21,065,475 km (0.037 R)
• M23: 21,877,791 km (0.12 R)
• M24: 23,277,578 km (0.095 R)
• M25: 23,999,538 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.6

Radius: 8.2

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 4.05 AU - 4.49 AU

Year: 5697 Days

Day: 10.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 79,715,774 km

• M1: 102,175 km (0.105 R)
• M2: 492,925 km (0.086 R)
• M3: 1,028,785 km (0.099 R)
• M4: 1,382,883 km (0.096 R)
• M5: 2,170,964 km (0.114 R)
• M6: 2,437,099 km (0.096 R)
• M7: 3,515,251 km (0.077 R)
• M8: 5,095,902 km (0.054 R)
• M9: 5,862,142 km (0.026 R)
• M10: 6,134,111 km (0.056 R)
• M11: 14,748,405 km (0.06 R)
• M12: 15,423,391 km (0.109 R)
• M13: 15,710,619 km (0.114 R)
• M14: 16,060,079 km (0.106 R)
• M15: 18,075,612 km (0.042 R)
• M16: 21,944,212 km (0.066 R)
• M17: 23,802,667 km (0.056 R)
• M18: 24,186,535 km (0.089 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.8

Radius: 9.3

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 5.07 AU - 5.53 AU

Year: 7878 Days

Day: 11.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,715,774 km

• M1: 115,789 km (0.119 R)
• M2: 413,788 km (0.118 R)
• M3: 707,748 km (0.104 R)
• M4: 1,006,644 km (0.051 R)
• M5: 1,403,228 km (0.12 R)
• M6: 1,770,940 km (0.1 R)
• M7: 4,424,656 km (0.077 R)
• M8: 4,982,806 km (0.093 R)
• M9: 5,417,687 km (0.065 R)
• M10: 6,178,093 km (0.032 R)
• M11: 6,488,957 km (0.084 R)
• M12: 7,074,932 km (0.031 R)
• M13: 8,617,735 km (0.08 R)
• M14: 9,406,864 km (0.113 R)
• M15: 10,460,182 km (0.075 R)
• M16: 11,037,929 km (0.114 R)
• M17: 12,650,146 km (0.109 R)
• M18: 13,826,134 km (0.076 R)
• M19: 14,576,817 km (0.041 R)
• M20: 15,868,594 km (0.105 R)
• M21: 16,276,398 km (0.089 R)
• M22: 17,235,021 km (0.113 R)
• M23: 17,728,245 km (0.101 R)
• M24: 19,264,466 km (0.119 R)
• M25: 19,795,688 km (0.063 R)
• M26: 21,448,296 km (0.06 R)
• M27: 22,163,373 km (0.081 R)
• M28: 22,673,203 km (0.071 R)
• M29: 23,716,498 km (0.092 R)
• M30: 26,059,351 km (0.09 R)
• M31: 27,872,477 km (0.092 R)
• M32: 28,637,969 km (0.113 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.7

Radius: 5

Gravity: 36.75 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.34 AU - 9.4 AU

Year: 18519 Days

Day: 18.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 79,715,774 km

• M1: 62,382 km (0.112 R)
• M2: 221,554 km (0.116 R)
• M3: 738,415 km (0.066 R)
• M4: 969,544 km (0.083 R)
• M5: 1,149,660 km (0.109 R)
• M6: 2,412,266 km (0.079 R)
• M7: 3,003,476 km (0.113 R)
• M8: 3,686,391 km (0.108 R)
• M9: 3,872,191 km (0.05 R)
• M10: 4,714,876 km (0.086 R)
• M11: 6,618,659 km (0.1 R)
• M12: 7,866,006 km (0.073 R)
• M13: 8,438,068 km (0.086 R)
• M14: 8,981,856 km (0.09 R)
• M15: 10,320,608 km (0.056 R)
• M16: 11,522,626 km (0.062 R)
• M17: 11,988,025 km (0.112 R)
• M18: 13,459,620 km (0.042 R)
• M19: 15,126,140 km (0.087 R)
• M20: 16,588,309 km (0.047 R)
• M21: 18,320,503 km (0.088 R)
• M22: 21,139,226 km (0.109 R)
• M23: 23,911,873 km (0.092 R)
• M24: 27,500,577 km (0.088 R)
• M25: 28,812,699 km (0.073 R)
• M26: 30,165,962 km (0.119 R)
• M27: 31,432,308 km (0.086 R)
• M28: 35,583,200 km (0.058 R)
• M29: 36,003,271 km (0.113 R)
• M30: 36,426,633 km (0.105 R)
• M31: 38,153,441 km (0.061 R)
• M32: 40,084,899 km (0.037 R)
• M33: 40,387,685 km (0.079 R)
• M34: 43,980,577 km (0.107 R)
• M35: 47,950,905 km (0.105 R)
• M36: 51,973,591 km (0.077 R)
• M37: 59,102,828 km (0.11 R)
• M38: 74,117,218 km (0.058 R)
• M39: 75,261,193 km (0.067 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 19,996 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit