List of 20th-century lunar eclipses
This list of lunar eclipses of the 20th century contains all lunar eclipses that were observed in this century from the earth, including the Halbschattenfinsternisse.
Survey
In the 20th century a total of 229 lunar eclipses took place. There was 78 years, in which only two eclipses took place, what is the minimum possible number of eclipses in one year. The theoretical maximum of five eclipses in a year, it never ever gave in the 20th century. The four eclipses occurred in 1908, 1915, 1926, 1933, 1944, 1973 and 1991.
The number of different types of lunar eclipses in the 20th century is was follows:
In 9 of the 83 Halbschattenfinsternisse the moon appeared completely in the penumbra of the earth one without entering the umbra; Such eclipses are referred to as total penumbral eclipse. In a (3 May 1958) of 65 partial umbra - lunar eclipses of the moon does not penetrate completely into the penumbra one. In 33 of the 81 total lunar eclipses the shadow axis hit the lunar surface, while it was central total eclipses, which are the darkest shadows and darkness with the longest duration. For this darkness type included the longest eclipse of July 16, 2000 with a totality duration of 1 hour 46 minutes and 24 seconds.
Legend
The following table contains all lunar eclipses of the 20th century. It contains the following columns:
- Time: The time data are in Terrestrial Dynamic Time ( TDT ). At the beginning of the century TDT and Universal Time (UT ) were approximately the same, at the end of the century was the difference between TDT and UT 64 seconds ( At).
- Type: Possible types are semi-shade, Partial or Total. In penumbra eclipse, it is possible that the moon is completely immersed in the penumbra cone of earth without it enters the umbra cone. These eclipses are also known as total Halbschattenfinsternisse and are made by the addition of " total" marked. In total lunar eclipses distinction is whether the shadow axis hitting the moon throughout the eclipse curve or missed him. Eclipses, where the shadow axis Meet the Moon, get your additional "central".
- Saros: The number of the Saros cycle, which belongs to the darkness. If the number is odd, a descending lunar node finds the darkness near place, it is just rising on one. This is exactly opposite to that of solar eclipses.
- Gamma: Gamma value of a lunar eclipse, this corresponds to the smallest distance of the shadow axis from the center of the Moon, measured in units of the equatorial radius of the Earth. Passes through the shadow of the Moon's center axis north, the gamma value is positive otherwise negative.
- Size: The size is specified for the half - and umbra. It corresponds to the proportion of the diameter of the moon, which is more than covered by the half or umbra cone.
- Duration: The duration is specified in hours and minutes, it can be distinguished up to three values depending on the type of darkness: Penumbra: time between the inlet and outlet of the moon in and out of the penumbra
- Partial: time between the inlet and outlet of the Moon in or from the umbra. Closes the total phase, if necessary, with a.
- Total: period during which the moon is completely in the umbra.