Total Solar Eclipses vs Eclipse Countdown

Total and Total-annular solar eclipses processed by the program are comprised between 1900 and 2100, exactly 287 eclipses from 28th May 1900 to 4th September 2100. The program also shows partial solar eclipses and lunar eclipses. The program gives the times in Universal Time of the Solar eclipse phases (initial, central and final) and the geographical coordinates from where it is possible to observe those circumstances of the eclipse. It also gives maximum duration and the width of the lunar umbra. Below Path of the Umbra are listed Longitude and Latitude of seven point of the lunar umbra path on the Earth surface. The program has a few functions: Earth Map, Movie and Google Map visualization. The first allows seeing a few points of the path of the lunar umbra on Earth surface; the second creates an animation:  the user will see the eclipse from one hour before up to one hour after its maximum phase with step of 2 minutes; the third function allows to visualize Google Map of the area around the point where the eclipse reaches the maximum or that selected from the user. Moreover it is possible to change geographical coordinates of the observer. This allows knowing if and how the eclipse will be seen from other points of the Earth surface (e.g. it is possible to know if the eclipse will be partial or it does not occur for those coordinates). App in english version if iOS language is not set to italian.

The Eclipse App is a high-fidelity astronomical tool engineered for observers who demand absolute accuracy as well as beginners who need a guide through the exceptional experience of their first total solar eclipse. Powered by the latest 3D computational models developed by the Besselian Elements Team, this App provides accurate sub-second eclipse contact timings using lunar limb profile corrections. Whether you are a professional researcher, an astrophotographer, or a dedicated eclipse chaser, this app provides the rigorous data necessary for a successful expedition, from interactive map useful for planning, to simulating the countdown and exercise with the equipment, and for real time tracking in case you are moving in search of the right spot. Core Features: • Precision Timing Engine: Real-time calculations of Contact Times based on your exact GPS coordinates • Interactive Mapping: High-resolution path-of-totality overlays including umbral limits an the center-line. The IQP method accounts for the topography on both the lunar limb and at the observer site, as well as relying on an improved value for the eclipse solar radius (959.95" ± 0.05", based on research by the Besselian Elements Team). The eclipse center-line and the northern and southern limits of the umbral shadow path also account for these three factors. Hence, these lines are not smooth lines, as in most publicly-available eclipse maps, but are noticeably jagged. Two lines are presented at each path limit corresponding to two values of the eclipse solar radius (959.90" and 960.00") in order to display a region of uncertainty rather than a single limit line. • Live Audio Synchronization: A sophisticated voice-cue system that announces critical contact phases and astronomical phenomena (e.g., shadow bands, corona visibility, and solar filtration changes), allowing you to keep your eyes on the sky or your equipment. • List of phenomena to observe during the eclipse at every step, so that you can be reminded to watch at the right time Designed for the Rigorous Observer: The Eclipse App eliminates the margin of error inherent in simplified models. Prepare for the next Great Eclipse with the most scientifically robust tool available on the App Store.