Solar Eclipse Prime Page
Annular Solar Eclipse of -1057 May 09 (1058 May 09 BCE)
Fred Espenak
Introduction
The Annular Solar Eclipse of -1057 May 09 (1058 May 09 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 -1057 May 09 at 01:09:20 TD (17:50:43 UT1). This is 4.0 days before the Moon reaches apogee. During the eclipse, the Sun is in the constellation Taurus. The synodic month in which the eclipse takes place has a Brown Lunation Number of -36853.
The eclipse belongs to Saros 50 and is number 9 of 73 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.
This annular eclipse is unsual in that it does NOT have a southern path limit. Instead, one edge of the antumbral shadow falls off into space throughout the eclipse. Gamma has a value of -0.9925.
The annular solar eclipse of -1057 May 09 is preceded two weeks earlier by a total lunar eclipse on -1057 Apr 24.
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 26316.6 seconds for this eclipse. The uncertainty in ΔT is 737.4 seconds corresponding to a standard error in longitude of the eclipse path of ± 3.08°.
The following links provide maps and data for the eclipse.
- Orthographic Map: Annular Solar Eclipse of -1057 May 09 - global map of eclipse visibility
- Google Map: Annular Solar Eclipse of -1057 May 09 - interactive map of the eclipse path
- Path Table: Annular Solar Eclipse of -1057 May 09 - coordinates of the central line and path limits
- Circumstances Table: Annular Solar Eclipse of -1057 May 09 - eclipse times for hundreds of cities
- Saros 50 Table - data for all eclipses in the Saros series
The tables below contain detailed predictions and additional information on the Annular Solar Eclipse of -1057 May 09 .