1. Rank 76 Occultation of Regulus by (1669) Dagmar, 2015 May 24
2014 July 13
32nd Annual IOTA Meeting
University of Maryland Observatory
College Park, MD
David W. Dunham

2. It will occur in THIS AREA!
But . . .

3. It will occur in THIS AREA!
But . . The Sun alt. will be 71

4. It will occur in THIS AREA!
But the Sun alt. will be 71 and star alt. only 2!

5. But . . . It will occur in the same parts of southern Spain and
Portugal where the 2005 Rhodope Regulus Occultation occurred
But . . .

6. It will occur in the same parts of southern Spain and
Portugal where the 2005 Rhodope Regulus Occultation occurred
But the Sun alt. will be 31 and star alt. 53, could pre-point in early am

8. The best place for this event is Saudi Arabia
The star altitude will be about 67 with Sun altitude about -14

9. Maldive Islands – Regulus alt. 32, Sun alt. -49
Deploying across the whole uncertainty zone has logistic problems and it can be
quite cloudy, it’s not a desert. Path also in s. Sumatra, but star alt. only 1 there.

10. The best place for this event is Saudi Arabia
YEMEN
YEMEN
At Highway 10, the star alt. will be about 64 with Sun alt. -16

11. Conclusions
 The desert climate should give a high probability for observation
in southern Saudi Arabia
In Jeddah and Mecca, the event will be in twilight strong enough
that I think students trained to observe might have trouble
acquiring the star in time
The sky will be dark enough to acquire Regulus easily at Hwy 10
Farther east approaches the border with Yemen where security
may be a problem
Haithem Altwaijry at King Abdulaziz City Science & Technical
University has given papers on observing occultations of
stars by NEO’s at space conferences; he has expressed an
interest in collaborating with us to observe the event