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Exercise caution not to overwrite, move, or delete any other files or folders when installing this map. If you have installed a previous or different version of this map, first delete the old IMG file, as the two maps have the same map ID and cannot coexist. It should also be possible to copy the file to the "Garmin" folder in the device's internal memory provided the file does not share the same name as any other existing file. To use this map, copy the file "eclipsepath10jun2021.img" to the "Garmin" folder on the removable SD card in the Garmin GPS device.
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This is one of those such eclipses in which the track travels westward for part of the path as viewed on a standard cylindrical-projection map and in which the north and south limit lines become inverted in that part of the path.
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Eclipse map disc free download software#
This is because the prediction software that was utilized, Occult 4, does not generate complete data for the entire track of high-latitude solar eclipses. The entire paths of the centerline and north limit are not included in this map. Instead, those people wishing to do so should consult an accurate scientific reference just prior to the time of the eclipse. Viewers should NOT use the curves of this map to position themselves at the precise edge boundaries of the eclipse path (for example, in order to view enhanced displays of Baily's beads). Those users are advised to consider the north and south limit lines as approximate when viewed at high zoom levels. All of these factors are significant to viewers situated near the edge of the path. These lunar irregularities may shift the eclipse's antumbra on earth by up to 1 to 3 km (0.6 to 1.9 miles) north or south. More importantly, the curves of this map do not take into account the irregular, mountainous edge of the moon. In addition, the map's curves were interpolated from a finite collection of fixed points and rounding or compression errors may occur during the compilation of the map. In general, various astronomical sources incorporate slightly different eclipse elements into their calculations, which will result in slight differences in predicted eclipse path boundary lines. This map has been compared and spot checked with data published by NASA/GSFC's Fred Espenak and has been found to track the curves from that data closely and consistently, although not identically. The updated data and closely spaced data points should enhance the accuracy of the map's predictions. Astronomical data used with this version of Occult 4 was updated on April 22, 2021. This map for Garmin devices was compiled based on eclipse boundary points computed at longitude intervals of 7.5 minutes by David Herald's astronomical occultation prediction program Occult 4.12.6.0. This map should ensure that someone reasonably inside the displayed eclipse path should be able to view annularity. NOTICE: This eclipse path map is a close approximation but is NOT exact. during and just after sunrise.įeel free to use this map and to pass it on to other people, but please read and pass along this disclaimer, too: Proper eye protection MUST be employed when viewing ALL stages of the eclipse, including the times between second and third contact when the disc of the moon will appear entirely inside the bright disc of the sun's photosphere.Īlso note that the annular phase of this eclipse will not be visible from any location within the United States, although partial phases will be visible in the upper Midwest and northeastern portions of the U.S. In no viewing location will the moon cover the sun completely and the solar corona will not be visible to the naked eye. Note that this is an annular and not total solar eclipse. This overlay is intended to be displayed on Garmin devices on top of a user's ordinary map and will show the eclipse path with respect to the cities, highways, and landmarks depicted in the ordinary map. It shows closely calculated estimates of the centerline, north boundary, and south boundary of the path of annularity, within which the entire disc of the moon will appear as a silhouette in front of the sun. This map is a transparent overlay of the path of the annular solar eclipse of June 10, 2021, which will pass across Canada, Greenland, and eastern Russia.