🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.48 AU - 0.7 AU

Year: 297 Days

Day: 23.9 Hours

Environment

Temp: -124 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 90,410,438 km

• M1: 34,856 km (0.092 R)
• M2: 71,807 km (0.102 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.92

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.51 AU - 0.75 AU

Year: 328 Days

Day: 42.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 324.4

Radius: 11.5

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.69 AU - 1.03 AU

Year: 523 Days

Day: 7.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,410,438 km

• M1: 143,016 km (0.094 R)
• M2: 519,703 km (0.064 R)
• M3: 886,966 km (0.092 R)
• M4: 1,302,549 km (0.052 R)
• M5: 2,153,162 km (0.086 R)
• M6: 2,546,006 km (0.108 R)
• M7: 3,166,688 km (0.046 R)
• M8: 4,556,602 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.6

Radius: 14.4

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.48 AU - 2.02 AU

Year: 1519 Days

Day: 14.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 90,410,438 km

• M1: 179,069 km (0.112 R)
• M2: 639,830 km (0.098 R)
• M3: 1,233,883 km (0.096 R)
• M4: 2,312,484 km (0.098 R)
• M5: 2,933,315 km (0.089 R)
• M6: 3,486,678 km (0.095 R)
• M7: 5,427,860 km (0.025 R)
• M8: 7,141,802 km (0.089 R)
• M9: 8,617,286 km (0.115 R)
• M10: 10,455,994 km (0.105 R)
• M11: 12,090,799 km (0.096 R)
• M12: 12,775,060 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.2

Radius: 13.2

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.71 AU - 4.47 AU

Year: 4462 Days

Day: 13.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,410,438 km

• M1: 166,802 km (0.088 R)
• M2: 630,405 km (0.112 R)
• M3: 1,131,708 km (0.119 R)
• M4: 1,560,904 km (0.063 R)
• M5: 2,619,160 km (0.073 R)
• M6: 3,488,024 km (0.088 R)
• M7: 3,915,874 km (0.104 R)
• M8: 4,780,250 km (0.111 R)
• M9: 5,549,632 km (0.109 R)
• M10: 6,519,625 km (0.044 R)
• M11: 7,302,770 km (0.093 R)
• M12: 8,359,978 km (0.118 R)
• M13: 9,246,644 km (0.105 R)
• M14: 11,603,708 km (0.103 R)
• M15: 12,565,473 km (0.117 R)
• M16: 15,015,886 km (0.097 R)
• M17: 15,444,185 km (0.085 R)
• M18: 16,102,116 km (0.094 R)
• M19: 17,356,794 km (0.11 R)
• M20: 18,860,701 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.9

Radius: 14.6

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 3.13 AU - 4.35 AU

Year: 4745 Days

Day: 5.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 90,410,438 km

• M1: 185,202 km (0.108 R)
• M2: 818,600 km (0.075 R)
• M3: 1,811,929 km (0.098 R)
• M4: 2,377,858 km (0.088 R)
• M5: 3,024,570 km (0.063 R)
• M6: 3,553,997 km (0.068 R)
• M7: 4,076,392 km (0.085 R)
• M8: 4,625,267 km (0.071 R)
• M9: 5,555,616 km (0.056 R)
• M10: 6,021,015 km (0.106 R)
• M11: 6,639,602 km (0.096 R)
• M12: 7,896,224 km (0.041 R)
• M13: 9,508,740 km (0.093 R)
• M14: 10,436,695 km (0.074 R)
• M15: 11,656,965 km (0.097 R)
• M16: 13,071,563 km (0.115 R)
• M17: 13,952,545 km (0.113 R)
• M18: 15,319,570 km (0.076 R)
• M19: 16,064,867 km (0.107 R)
• M20: 17,015,262 km (0.083 R)
• M21: 17,877,245 km (0.095 R)
• M22: 18,833,026 km (0.096 R)
• M23: 23,749,709 km (0.111 R)
• M24: 26,502,908 km (0.112 R)
• M25: 28,083,410 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.7

Radius: 14.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.55 AU - 5.89 AU

Year: 8974 Days

Day: 8.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 90,410,438 km

• M1: 181,313 km (0.081 R)
• M2: 634,744 km (0.107 R)
• M3: 1,399,039 km (0.098 R)
• M4: 2,569,942 km (0.076 R)
• M5: 3,096,975 km (0.113 R)
• M6: 3,602,915 km (0.113 R)
• M7: 4,452,930 km (0.1 R)
• M8: 5,588,976 km (0.097 R)
• M9: 7,318,477 km (0.044 R)
• M10: 7,782,231 km (0.106 R)
• M11: 8,389,598 km (0.104 R)
• M12: 10,892,221 km (0.073 R)
• M13: 11,967,680 km (0.088 R)
• M14: 13,799,506 km (0.078 R)
• M15: 17,055,653 km (0.066 R)
• M16: 17,874,253 km (0.099 R)
• M17: 19,296,779 km (0.042 R)
• M18: 22,045,640 km (0.062 R)
• M19: 25,045,975 km (0.068 R)
• M20: 25,748,038 km (0.105 R)
• M21: 28,309,153 km (0.112 R)
• M22: 29,167,246 km (0.083 R)
• M23: 29,651,495 km (0.098 R)
• M24: 31,540,467 km (0.048 R)
• M25: 33,614,342 km (0.09 R)
• M26: 37,802,784 km (0.119 R)
• M27: 39,429,960 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.2

Radius: 3.5

Gravity: 59.53 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 6.1 AU - 9.26 AU

Year: 13962 Days

Day: 18.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 90,410,438 km

• M1: 46,375 km (0.073 R)
• M2: 165,754 km (0.066 R)
• M3: 942,018 km (0.09 R)
• M4: 1,232,686 km (0.098 R)
• M5: 1,384,678 km (0.103 R)
• M6: 1,564,644 km (0.1 R)
• M7: 1,828,684 km (0.085 R)
• M8: 2,259,077 km (0.112 R)
• M9: 2,381,897 km (0.107 R)
• M10: 3,014,397 km (0.038 R)
• M11: 3,953,722 km (0.068 R)
• M12: 4,602,378 km (0.102 R)
• M13: 4,901,125 km (0.105 R)
• M14: 5,037,858 km (0.067 R)
• M15: 7,187,430 km (0.1 R)
• M16: 11,121,555 km (0.111 R)
• M17: 11,902,455 km (0.1 R)
• M18: 12,848,213 km (0.113 R)
• M19: 13,572,865 km (0.052 R)
• M20: 14,816,772 km (0.082 R)
• M21: 17,055,354 km (0.078 R)
• M22: 19,509,358 km (0.116 R)
• M23: 20,026,817 km (0.094 R)
• M24: 23,422,239 km (0.089 R)
• M25: 32,512,255 km (0.088 R)
• M26: 33,483,893 km (0.094 R)
• M27: 37,431,631 km (0.095 R)
• M28: 40,972,912 km (0.073 R)
• M29: 42,535,911 km (0.082 R)
• M30: 42,679,973 km (0.059 R)
• M31: 45,629,595 km (0.032 R)
• M32: 49,027,860 km (0.04 R)
• M33: 51,766,548 km (0.093 R)
• M34: 54,435,524 km (0.091 R)
• M35: 55,976,531 km (0.026 R)
• M36: 57,370,484 km (0.104 R)
• M37: 59,504,348 km (0.075 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 709.9

Radius: 6.2

Gravity: 18.47 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.54 AU - 8.06 AU

Year: 14291 Days

Day: 21.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 90,410,438 km

• M1: 77,043 km (0.096 R)
• M2: 272,418 km (0.082 R)
• M3: 492,027 km (0.067 R)
• M4: 1,208,003 km (0.065 R)
• M5: 1,872,965 km (0.065 R)
• M6: 2,944,834 km (0.082 R)
• M7: 4,313,355 km (0.056 R)
• M8: 4,696,326 km (0.092 R)
• M9: 4,929,998 km (0.031 R)
• M10: 5,790,784 km (0.084 R)
• M11: 8,375,237 km (0.045 R)
• M12: 10,081,849 km (0.03 R)
• M13: 10,584,797 km (0.09 R)
• M14: 13,221,161 km (0.082 R)
• M15: 14,235,285 km (0.04 R)
• M16: 14,655,056 km (0.115 R)
• M17: 15,519,433 km (0.09 R)
• M18: 16,647,101 km (0.037 R)
• M19: 18,316,165 km (0.094 R)
• M20: 18,729,504 km (0.079 R)
• M21: 20,533,355 km (0.113 R)
• M22: 24,782,682 km (0.098 R)
• M23: 27,702,683 km (0.099 R)
• M24: 30,266,641 km (0.064 R)
• M25: 31,311,582 km (0.093 R)
• M26: 39,720,179 km (0.11 R)
• M27: 42,249,730 km (0.105 R)
• M28: 46,090,356 km (0.079 R)
• M29: 53,611,838 km (0.042 R)
• M30: 57,927,138 km (0.117 R)
• M31: 59,355,498 km (0.108 R)

Asteroid Belt

Center: 9.12 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 10 - Ice Giant

Semi-Major Axis: 10.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.4

Radius: 6.7

Gravity: 20.97 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.66 AU - 12.2 AU

Year: 22097 Days

Day: 23.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 90,410,438 km

• M1: 83,326 km (0.08 R)
• M2: 400,473 km (0.095 R)
• M3: 956,230 km (0.106 R)
• M4: 1,461,122 km (0.096 R)
• M5: 3,509,716 km (0.119 R)
• M6: 3,792,456 km (0.08 R)
• M7: 4,695,877 km (0.094 R)
• M8: 5,078,997 km (0.084 R)
• M9: 6,775,437 km (0.049 R)
• M10: 7,883,209 km (0.044 R)
• M11: 11,510,210 km (0.098 R)
• M12: 14,306,643 km (0.05 R)
• M13: 15,358,765 km (0.113 R)
• M14: 19,691,717 km (0.106 R)
• M15: 21,403,117 km (0.107 R)
• M16: 22,030,231 km (0.11 R)
• M17: 25,234,468 km (0.113 R)
• M18: 26,646,672 km (0.1 R)
• M19: 32,139,906 km (0.075 R)
• M20: 38,037,802 km (0.087 R)
• M21: 41,000,139 km (0.104 R)
• M22: 44,449,267 km (0.098 R)
• M23: 44,787,508 km (0.078 R)
• M24: 50,252,169 km (0.1 R)
• M25: 57,938,208 km (0.099 R)
• M26: 62,481,944 km (0.109 R)
• M27: 64,623,587 km (0.093 R)
• M28: 65,057,720 km (0.07 R)
• M29: 76,553,419 km (0.069 R)
• M30: 82,522,374 km (0.119 R)
• M31: 84,838,448 km (0.096 R)
• M32: 85,359,049 km (0.09 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 248 - 13,870 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit