Solar Eclipse Prime Page
Partial Solar Eclipse of -1820 Nov 07 (1821 Nov 07 BCE)
Fred Espenak
Introduction
The Partial Solar Eclipse of -1820 Nov 07 (1821 Nov 07 BCE) is visible from the geographic regions shown on the map to the right. Click on the map to enlarge it. For an explanation of the features appearing in the map, see Key to Solar Eclipse Maps.
The instant of greatest eclipse takes place on -1820 Nov 07 at 05:48:49 TD (18:06:36 UT1). This is 0.7 days after the Moon reaches perigee. During the eclipse, the Sun is in the constellation Ophiuchus. The synodic month in which the eclipse takes place has a Brown Lunation Number of -46284.
The eclipse belongs to Saros 33 and is number 10 of 84 eclipses in the series. All eclipses in this series occur at the Moons ascending node. The Moon moves southward with respect to the node with each succeeding eclipse in the series and gamma decreases.
This is a very deep partial eclipse. It has an eclipse magnitude of 0.4106, while Gamma has a value of 1.3178.
The partial solar eclipse of -1820 Nov 07 is preceded two weeks earlier by a total lunar eclipse on -1820 Oct 23.
Another solar eclipse occurs one synodic month before the -1820 Nov 07 eclipse. It is the partial solar eclipse of -1820 Oct 08.
These eclipses all take place during a single eclipse season.
The eclipse predictions are given in both Terrestrial Dynamical Time (TD) and Universal Time (UT1). The parameter ΔT is used to convert between these two times (i.e., UT1 = TD - ΔT). ΔT has a value of 42133.1 seconds for this eclipse. The uncertainty in ΔT is 3007.3 seconds corresponding to a standard error in longitude of the eclipse path of ± 12.56°.
The following links provide maps and data for the eclipse.
- Orthographic Map: Partial Solar Eclipse of -1820 Nov 07 - global map of eclipse visibility
- Google Map: Partial Solar Eclipse of -1820 Nov 07 - interactive map of the eclipse path
- Circumstances Table: Partial Solar Eclipse of -1820 Nov 07 - eclipse times for hundreds of cities
- Saros 33 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Partial Solar Eclipse of -1820 Nov 07 .