Solar Eclipse Prime Page
Partial Solar Eclipse of -1172 Jul 17 (1173 Jul 17 BCE)
Fred Espenak
Introduction
The Partial Solar Eclipse of -1172 Jul 17 (1173 Jul 17 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 -1172 Jul 17 at 20:09:52 TD (12:15:31 UT1). This is 1.5 days after the Moon reaches apogee. 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 -38273.
The eclipse belongs to Saros 56 and is number 1 of 74 eclipses in the series. Thus, the -1172 Jul 17 event is the very first eclipse of the series . All eclipses in this series occur at the Moons descending node. The Moon moves northward with respect to the node with each succeeding eclipse in the series and gamma increases.
This is an extremely shallow partial eclipse. It has an eclipse magnitude of only 0.0221, while Gamma has a value of -1.5510. This is a very deep partial eclipse. It has an eclipse magnitude of 0.0221, while Gamma has a value of -1.5510.
The partial solar eclipse of -1172 Jul 17 is preceded two weeks earlier by a total lunar eclipse on -1172 Jul 02.
Another solar eclipse occurs one synodic month before the -1172 Jul 17 eclipse. It is the partial solar eclipse of -1172 Jun 18.
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 28461.3 seconds for this eclipse. The uncertainty in ΔT is 995.2 seconds corresponding to a standard error in longitude of the eclipse path of ± 4.16°.
The following links provide maps and data for the eclipse.
- Orthographic Map: Partial Solar Eclipse of -1172 Jul 17 - global map of eclipse visibility
- Google Map: Partial Solar Eclipse of -1172 Jul 17 - interactive map of the eclipse path
- Circumstances Table: Partial Solar Eclipse of -1172 Jul 17 - eclipse times for hundreds of cities
- Saros 56 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Partial Solar Eclipse of -1172 Jul 17 .