Extras: "Eclipse Bulletin: Total Solar Eclipse of 2017 August 21"

by Fred Espenak

Eclipse Bulletin:
Total Solar Eclipse of 2017 August 21

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This page contains links to additional tables, information, and errata for Eclipse Bulletin: Total Solar Eclipse of 2017 August 21.

Expanded Tables for the Path of Totality

To aid and assist in the plotting of the umbral path on large scale maps, the path coordinates are tabulated at 0.125° (7.5') intervals in longitude in Table 1–7c (link below). The latitude of the northern limit, southern limit, and central line for each longitude is tabulated to the nearest hundredth of an arc minute (≈18.5 m at the Equator) along with the Universal Time of maximum eclipse at the central line position. Finally, local circumstances on the central line at maximum eclipse are listed and include the Sun's altitude and azimuth, the umbral path width, and the central duration of totality.

Table 1–8c (link below) lists the coordinates of the zones of grazing eclipse at 0.125° (7.5') intervals in longitude. The time of maximum eclipse is given at both northern and southern limits, as well as the path's azimuth. The elevation and scale factors are also given (see Sect. 1.11 “Limb Corrections to the Path Limits: Graze Zones” in Eclipse Bulletin: Total Solar Eclipse of 2017 August 21).

Errata for Eclipse Bulletin: Total Solar Eclipse of 2017 August 21

Eclipse Bulletin: Total Solar Eclipse of 2017 August 21 was first published on 2015 May 15. The link below contains a list of errata in Versions 1.0a, 1.0b and 1.0c (as of 2015 Jul 21. They have be corrected in latest version 1.0d.

Greatest Eclipse and Greatest Duration

A new section Greatest Eclipse and Greatest Duration was added to Version 1.0b as Section 1.9. The original sections 1.9 to 1.12 were renumbered 1.10 to 1.13 to accomodate the new Section 1.9.