Deaths
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| 1743 in science |
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| Paleontology |
| Extraterrestrial environment |
| Terrestrial environment |
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The year 1743 in science and technology involved some significant events.
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1743 (MDCCXLIII) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Saturday of the Julian calendar, the 1743rd year of the Common Era (CE) and Anno Domini (AD) designations, the 743rd year of the 2nd millennium, the 43rd year of the 18th century, and the 4th year of the 1740s decade. As of the start of 1743, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.
The year 1787 in science and technology involved some significant events.
The year 1778 in science and technology involved some significant events.
The year 1820 in science and technology involved some significant events, listed below.
The year 1828 in science and technology involved some significant events, listed below.
The year 1829 in science and technology involved some significant events, listed below.
The year 1751 in science and technology involved some significant events.
The year 1754 in science and technology involved some significant events.
The year 1817 in science and technology involved some significant events, listed below.
The year 1923 in science and technology involved some significant events, listed below.
The year 1744 in science and technology involved some significant events.
The year 1766 in science and technology involved some significant events.
The year 1794 in science and technology involved some significant events.
The year 1878 in science and technology involved many significant events, listed below.
The year 1797 in science and technology involved some significant events.
The year 1786 in science and technology involved some significant events.
The year 1731 in science and technology involved some significant events.
The Great Comet of 1744, whose official designation is C/1743 X1, and which is also known as Comet de Chéseaux or Comet Klinkenberg-Chéseaux, was a spectacular comet that was observed during 1743 and 1744. It was discovered independently in late November 1743 by Jan de Munck, in the second week of December by Dirk Klinkenberg, and, four days later, by Jean-Philippe de Chéseaux. It became visible with the naked eye for several months in 1744 and displayed dramatic and unusual effects in the sky. Its absolute magnitude — or intrinsic brightness — of 0.5 was the sixth highest in recorded history. Its apparent magnitude may have reached as high as -7, leading it to be classified as a Great Comet. This comet is noted especially for developing a 'fan' of six tails after reaching its perihelion.