IOTA Observations of the 2010 July 11 th Total Solar Eclipse from French Polynesia 2010 Sept. 30 Institute dAstrophysique de Paris David W. Dunham, IOTA.

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Presentation transcript:

IOTA Observations of the 2010 July 11 th Total Solar Eclipse from French Polynesia 2010 Sept. 30 Institute dAstrophysique de Paris David W. Dunham, IOTA With observations by R. Nugent, P. Maley, and C. Herold

2 Path of the July 11 th Total Solar Eclipse across French Polynesia They were not able to arrange observations near the path limits, as for most past eclipses, but since we knew more accurate Kaguya profile data are available, they observed from two islands at different distances from the central line and on opposite sides of it.

3 The IOTA observers chords relative to the predicted lunar profile

4 Bailys beads video recorded around 2 nd contact by Richard Nugent

5 Bailys beads video recorded around 3 rd contact by Richard Nugent

6 Bailys beads video recorded around 2 nd contact by Paul Maley There were some clouds at his location, and 3 rd contact was lost

7 The Inner Corona during Totality Note the UTC time display from a Kiwi video time inserter

8 Richard Nugent in the foreground with his Questar and Kiwi time inserter

9 Chuck Herold on Hao

10 Show Richard Nugents Video with link to Utube Part way down his Web site for the eclipse at

Bailys Beads near 2 nd Contact 2134

Bead #

Bead #

Bead #

Bead #4

Bailys Beads near 3 rd Contact 1 2 3

Bead #2

Bead #3

19 Show Richard Nugents Limovie Analyses in c:\ \eclipse\2010July\ July nd Contact Bailys beads timings.pdf and July rd Contact Bailys beads timings.pdf

20 Tom Van Flandern, Observed 1970 March 7 th eclipse from Eclipse, VA Led the only successful public eclipse edge expeditions

21 Alan Fiala, Eclipse expert at the U. S. Naval Observatory Prepared nautical almanac eclipse predictions for several years Made 1 st video observations of Bailys beads at the edge of a total solar eclipse in 1981