🌌 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: 3.51

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.58 AU - 0.6 AU

Year: 288 Days

Day: 31.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,252,828 km

• M1: 227,538 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254

Radius: 13.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.64 AU - 1.04 AU

Year: 489 Days

Day: 7.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 83,252,828 km

• M1: 172,038 km (0.058 R)
• M2: 644,019 km (0.119 R)
• M3: 1,125,126 km (0.089 R)
• M4: 1,648,120 km (0.105 R)
• M5: 2,417,651 km (0.114 R)
• M6: 3,184,639 km (0.099 R)
• M7: 4,096,738 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.1

Radius: 11.7

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 1.17 AU - 1.39 AU

Year: 921 Days

Day: 13.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,252,828 km

• M1: 146,606 km (0.076 R)
• M2: 605,722 km (0.039 R)
• M3: 1,085,033 km (0.088 R)
• M4: 1,637,498 km (0.059 R)
• M5: 2,126,833 km (0.096 R)
• M6: 2,595,822 km (0.115 R)
• M7: 3,193,765 km (0.085 R)
• M8: 3,868,003 km (0.102 R)
• M9: 5,055,062 km (0.034 R)
• M10: 5,842,694 km (0.066 R)
• M11: 6,431,661 km (0.07 R)
• M12: 7,186,083 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.2

Radius: 10.5

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.1 AU - 1.58 AU

Year: 986 Days

Day: 14.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,252,828 km

• M1: 130,749 km (0.114 R)
• M2: 592,108 km (0.042 R)
• M3: 1,198,877 km (0.066 R)
• M4: 1,619,547 km (0.093 R)
• M5: 2,100,055 km (0.1 R)
• M6: 2,432,611 km (0.08 R)
• M7: 2,907,584 km (0.098 R)
• M8: 4,059,937 km (0.048 R)
• M9: 4,697,672 km (0.118 R)
• M10: 5,058,502 km (0.12 R)
• M11: 5,663,177 km (0.058 R)
• M12: 5,993,040 km (0.052 R)
• M13: 7,016,888 km (0.079 R)
• M14: 7,398,063 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 681.8

Radius: 14.8

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.46 AU - 1.86 AU

Year: 1360 Days

Day: 11.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,252,828 km

• M1: 184,903 km (0.119 R)
• M2: 737,368 km (0.076 R)
• M3: 1,217,727 km (0.12 R)
• M4: 1,705,865 km (0.102 R)
• M5: 2,236,488 km (0.093 R)
• M6: 3,070,945 km (0.057 R)
• M7: 3,609,049 km (0.058 R)
• M8: 4,122,917 km (0.079 R)
• M9: 5,075,706 km (0.113 R)
• M10: 6,125,285 km (0.117 R)
• M11: 9,959,029 km (0.067 R)
• M12: 10,542,760 km (0.111 R)
• M13: 11,958,255 km (0.107 R)
• M14: 12,543,781 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.3

Radius: 12.6

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.15 AU - 4.55 AU

Year: 5769 Days

Day: 10.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 83,252,828 km

• M1: 156,779 km (0.075 R)
• M2: 612,304 km (0.064 R)
• M3: 1,236,576 km (0.112 R)
• M4: 1,773,483 km (0.044 R)
• M5: 2,391,920 km (0.095 R)
• M6: 4,606,717 km (0.084 R)
• M7: 5,026,638 km (0.108 R)
• M8: 5,421,277 km (0.096 R)
• M9: 5,836,711 km (0.1 R)
• M10: 6,500,027 km (0.107 R)
• M11: 8,760,152 km (0.088 R)
• M12: 10,518,376 km (0.069 R)
• M13: 12,016,299 km (0.078 R)
• M14: 12,725,842 km (0.117 R)
• M15: 14,622,593 km (0.071 R)
• M16: 15,794,842 km (0.074 R)
• M17: 17,585,080 km (0.112 R)
• M18: 20,926,947 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 717.4

Radius: 7.8

Gravity: 11.79 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 6.39 AU - 7.03 AU

Year: 11051 Days

Day: 19 Hours

Environment

Temp: -222 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 83,252,828 km

• M1: 96,939 km (0.097 R)
• M2: 500,106 km (0.041 R)
• M3: 1,020,407 km (0.116 R)
• M4: 1,403,378 km (0.054 R)
• M5: 2,520,126 km (0.062 R)
• M6: 2,792,095 km (0.116 R)
• M7: 3,396,021 km (0.056 R)
• M8: 4,461,009 km (0.037 R)
• M9: 4,798,053 km (0.056 R)
• M10: 5,840,600 km (0.056 R)
• M11: 7,484,082 km (0.086 R)
• M12: 7,741,690 km (0.088 R)
• M13: 12,414,678 km (0.032 R)
• M14: 12,837,292 km (0.065 R)
• M15: 14,293,927 km (0.11 R)
• M16: 14,557,967 km (0.045 R)
• M17: 16,499,149 km (0.035 R)
• M18: 17,083,927 km (0.081 R)
• M19: 18,842,600 km (0.113 R)
• M20: 22,805,298 km (0.113 R)
• M21: 28,627,497 km (0.05 R)
• M22: 33,826,622 km (0.068 R)
• M23: 34,296,209 km (0.062 R)
• M24: 34,770,135 km (0.119 R)
• M25: 36,340,464 km (0.084 R)
• M26: 37,705,545 km (0.07 R)
• M27: 42,548,477 km (0.065 R)
• M28: 43,095,706 km (0.106 R)
• M29: 45,902,162 km (0.087 R)
• M30: 47,349,970 km (0.07 R)
• M31: 48,678,848 km (0.105 R)
• M32: 51,410,954 km (0.109 R)
• M33: 51,876,054 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859.1

Radius: 6.7

Gravity: 19.14 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 7.06 AU - 7.86 AU

Year: 12955 Days

Day: 21.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,252,828 km

• M1: 84,523 km (0.076 R)
• M2: 325,226 km (0.083 R)
• M3: 559,496 km (0.112 R)
• M4: 889,659 km (0.101 R)
• M5: 1,161,478 km (0.078 R)
• M6: 1,548,787 km (0.065 R)
• M7: 2,668,676 km (0.087 R)
• M8: 3,140,658 km (0.103 R)
• M9: 4,373,494 km (0.075 R)
• M10: 4,595,946 km (0.11 R)
• M11: 5,823,845 km (0.108 R)
• M12: 6,493,296 km (0.107 R)
• M13: 7,300,675 km (0.061 R)
• M14: 7,937,214 km (0.092 R)
• M15: 9,011,177 km (0.046 R)
• M16: 12,491,422 km (0.09 R)
• M17: 13,334,107 km (0.114 R)
• M18: 16,621,520 km (0.029 R)
• M19: 17,086,620 km (0.117 R)
• M20: 17,401,374 km (0.091 R)
• M21: 27,655,859 km (0.103 R)
• M22: 28,199,199 km (0.09 R)
• M23: 29,307,569 km (0.072 R)
• M24: 31,140,742 km (0.077 R)
• M25: 32,324,360 km (0.115 R)
• M26: 33,170,785 km (0.116 R)
• M27: 35,414,603 km (0.081 R)
• M28: 35,926,677 km (0.111 R)
• M29: 41,463,144 km (0.115 R)
• M30: 42,750,135 km (0.114 R)
• M31: 44,656,012 km (0.045 R)
• M32: 51,199,422 km (0.104 R)
• M33: 52,183,477 km (0.098 R)
• M34: 52,680,292 km (0.114 R)
• M35: 56,419,640 km (0.091 R)
• M36: 61,245,967 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.2

Radius: 5.9

Gravity: 25.89 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.4 AU - 9.68 AU

Year: 15868 Days

Day: 23.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 83,252,828 km

• M1: 74,799 km (0.093 R)
• M2: 360,232 km (0.116 R)
• M3: 688,300 km (0.118 R)
• M4: 1,188,705 km (0.083 R)
• M5: 1,416,841 km (0.075 R)
• M6: 1,814,323 km (0.082 R)
• M7: 2,078,812 km (0.086 R)
• M8: 3,515,999 km (0.056 R)
• M9: 3,898,072 km (0.1 R)
• M10: 6,030,290 km (0.034 R)
• M11: 6,931,019 km (0.099 R)
• M12: 7,579,227 km (0.106 R)
• M13: 11,820,177 km (0.079 R)
• M14: 12,144,654 km (0.044 R)
• M15: 14,363,789 km (0.1 R)
• M16: 14,733,296 km (0.106 R)
• M17: 15,337,821 km (0.069 R)
• M18: 15,958,652 km (0.062 R)
• M19: 16,515,605 km (0.08 R)
• M20: 16,758,103 km (0.119 R)
• M21: 26,827,087 km (0.051 R)
• M22: 27,050,287 km (0.07 R)
• M23: 28,881,215 km (0.091 R)
• M24: 29,588,664 km (0.071 R)
• M25: 32,281,425 km (0.082 R)
• M26: 34,339,294 km (0.112 R)
• M27: 41,928,992 km (0.093 R)
• M28: 43,447,261 km (0.068 R)
• M29: 44,531,546 km (0.067 R)
• M30: 48,882,899 km (0.092 R)
• M31: 52,283,109 km (0.117 R)
• M32: 55,837,704 km (0.11 R)
• M33: 61,079,913 km (0.106 R)
• M34: 67,461,609 km (0.083 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952

Radius: 3.1

Gravity: 99.06 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 7.91 AU - 11.63 AU

Year: 19417 Days

Day: 21.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 83,252,828 km

• M1: 38,895 km (0.069 R)
• M2: 140,472 km (0.08 R)
• M3: 287,078 km (0.043 R)
• M4: 405,560 km (0.071 R)
• M5: 1,247,347 km (0.093 R)
• M6: 1,370,167 km (0.043 R)
• M7: 1,904,680 km (0.12 R)
• M8: 2,765,317 km (0.115 R)
• M9: 4,151,939 km (0.046 R)
• M10: 4,640,825 km (0.119 R)
• M11: 5,128,215 km (0.118 R)
• M12: 5,364,280 km (0.05 R)
• M13: 6,159,842 km (0.082 R)
• M14: 6,747,462 km (0.036 R)
• M15: 10,502,818 km (0.12 R)
• M16: 11,272,948 km (0.09 R)
• M17: 11,671,775 km (0.12 R)
• M18: 12,011,213 km (0.068 R)
• M19: 12,357,233 km (0.105 R)
• M20: 14,264,307 km (0.077 R)
• M21: 16,955,871 km (0.096 R)
• M22: 21,852,659 km (0.117 R)
• M23: 26,785,200 km (0.093 R)
• M24: 28,949,582 km (0.034 R)
• M25: 30,711,545 km (0.09 R)
• M26: 30,840,050 km (0.088 R)
• M27: 31,749,754 km (0.119 R)
• M28: 33,622,421 km (0.11 R)
• M29: 35,004,406 km (0.112 R)
• M30: 35,993,846 km (0.073 R)
• M31: 44,261,971 km (0.106 R)
• M32: 45,252,010 km (0.099 R)
• M33: 46,934,836 km (0.117 R)
• M34: 47,105,378 km (0.045 R)
• M35: 53,523,276 km (0.114 R)
• M36: 54,835,399 km (0.092 R)
• M37: 59,297,305 km (0.086 R)
• M38: 67,188,742 km (0.116 R)
• M39: 69,155,056 km (0.1 R)
• M40: 74,353,582 km (0.06 R)
• M41: 82,506,218 km (0.105 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 16,812 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit