Solar Eclipse Prime Page
Total Solar Eclipse of -0689 Jul 18 (0690 Jul 18 BCE)
Fred Espenak
Introduction
The Total Solar Eclipse of -0689 Jul 18 (0690 Jul 18 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 -0689 Jul 18 at 13:03:10 TD (07:29:46 UT1). This is 0.6 days before the Moon reaches perigee. During the eclipse, the Sun is in the constellation Leo. The synodic month in which the eclipse takes place has a Brown Lunation Number of -32299.
The eclipse belongs to Saros 54 and is number 34 of 74 eclipses in the series. All eclipses in this series occur at the Moon’s descending node. The Moon moves northward with respect to the node with each succeeding eclipse in the series and gamma increases.
The solar eclipse of -0689 Jul 18 is an exceptionally long total eclipse with a duration at greatest eclipse of 06m35s. It has an eclipse magnitude of 1.0724.
The total solar eclipse of -0689 Jul 18 is preceded two weeks earlier by a penumbral lunar eclipse on -0689 Jul 03.
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 20004.8 seconds for this eclipse. The uncertainty in ΔT is 503.4 seconds corresponding to a standard error in longitude of the eclipse path of ± 2.10°.
The following links provide maps and data for the eclipse.
- Orthographic Map: Total Solar Eclipse of -0689 Jul 18 - global map of eclipse visibility
- Google Map: Total Solar Eclipse of -0689 Jul 18 - interactive map of the eclipse path
- Path Table: Total Solar Eclipse of -0689 Jul 18 - coordinates of the central line and path limits
- Circumstances Table: Total Solar Eclipse of -0689 Jul 18 - eclipse times for hundreds of cities
- Saros 54 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Total Solar Eclipse of -0689 Jul 18 .