Solar Eclipse Prime Page
Annular Solar Eclipse of -1720 Jun 16 (1721 Jun 16 BCE)
Fred Espenak
Introduction
The Annular Solar Eclipse of -1720 Jun 16 (1721 Jun 16 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 -1720 Jun 16 at 17:55:50 TD (06:51:33 UT1). This is 3.2 days before the Moon reaches apogee. During the eclipse, the Sun is in the constellation Cancer. The synodic month in which the eclipse takes place has a Brown Lunation Number of -45052.
The eclipse belongs to Saros 19 and is number 35 of 73 eclipses in the series. All eclipses in this series occur at the Moon’s ascending node. The Moon moves southward with respect to the node with each succeeding eclipse in the series and gamma decreases.
The annular solar eclipse of -1720 Jun 16 is preceded two weeks earlier by a penumbral lunar eclipse on -1720 Jun 02, and it is followed two weeks later by a penumbral lunar eclipse on -1720 Jul 01.
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 39856.7 seconds for this eclipse. The uncertainty in ΔT is 2638.1 seconds corresponding to a standard error in longitude of the eclipse path of ± 11.02°.
The following links provide maps and data for the eclipse.
- Orthographic Map: Annular Solar Eclipse of -1720 Jun 16 - global map of eclipse visibility
- Google Map: Annular Solar Eclipse of -1720 Jun 16 - interactive map of the eclipse path
- Path Table: Annular Solar Eclipse of -1720 Jun 16 - coordinates of the central line and path limits
- Circumstances Table: Annular Solar Eclipse of -1720 Jun 16 - eclipse times for hundreds of cities
- Saros 19 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Annular Solar Eclipse of -1720 Jun 16 .