THE ROYAL ASTRONOMICAL SOCIETY OF CANADA
1991 SOLAR ECLIPSE EXPEDITION
SOLAR ECLIPSE OUIZ
1. The term "eclipse" of the sun is actually a complete misnomer for the
event that we will see tomorrow. The proper name of the phenomenon is
a(n) _____________________ of the sun.
2. The English translation of the Latin word that is our name for the sun's
atmosphere that we see during the total phase of a solar eclipse is
3. Annular eclipses are more frequent than total eclipses. True or false?
4. During solar eclipses, the moon's umbral shadow moves across the earth
in a west to east direction
(a) always _______________
(b) usually _______________
(c) sometimes _______________
(d) rarely _______________
(e) never _______________
5. The last total solar eclipse visible in Mexico occurred on what date
(month and year)? ________________
6. At this eclipse, the moon's shadow will move across the Baja Penninsula
at what velocity (within 20%)? ______________ per second.
7. The (fictional) residents of how many other planets in the solar system
might see a total eclipse of the sun from the surfaces (or visible cloud
tops in the case of gas giant planets) of their home planets?
8. It is possible for two successive solar eclipses to be entirely total.
True or false? _________________________
9. The theoretical maximum duration of totality for any total solar eclipse
is ______________________ (minutes and seconds, within 10%).
10. The theoretical maximum duration of annularity for any annular solar
eclipse is ___________________ (minutes and seconds, within 10%).
11. which of the following statements is (are) true? Einstein's theories
of relativity provide that, at a solar eclipse,
(a) stars near the sun appear to be deflected toward the
(b) stars near the sun appear to be deflected away from
the sun, __________________________
(c) your telescope appears to be deflected toward your
neighbour's telescope, ____________________
(d) your can of cerveza (beer) appears to fall over
12. Since 1989, this Expedition has had
(a) One _________________________
(b) Two _________________________
(c) Three _________________________
(d) Fifty-five _________________________
13. The last total eclipse in the Saros to which tomorrow's event belongs
occurred on what date (month and year)? ____________________________
14. At that eclipse (referred to in question 13), observers who experienced
the longest duration of totality were in the moon's umbral shadow for
how long (within 10%)? _____________________________
15. Earlier in the history of the solar system, total solar eclipses were
(a) less frequent than ____________
(b) of the same frequency as ____________
(c) more frequent than ____________
they are now.
16. which American singer made reference to a particular solar eclipse in
a hit song from the 1970s? ____________________
17. which Greek singer used as a song title the umbra in which we will be
enveloped tomorrow? ______________________
18. If tomorrow you see shadow bands for 8 minutes in succession without a
(a) it will be a very unusual observation, ________________
(b) you will have imbibed too many margueritas
(c) you will have missed the 3:00 a.m. wake-up
call and will be observing the eclipse from
just outside the path of totality at
Puerto Vallarta, ________________
(d) quite possibly all of the above. ________________
19. Historical records show that ancient solar eclipses were visible at
locations further east than modern calculations originally indicated.
This determination established the existence of what phenomenon
associated with the Earth?
20. The given name of the astronomer who first described the last several
points of the sun's photosphere that blaze through the valleys on the
moon's limb just before totality was _______________________________.
21. The next total solar eclipse visible from Canada will take place in what
year (within one year)? _________________________________
22. Total eclipses are visible from any Qfl& place on the earth's surface (on
average) once every how many years (within 10%)?
23. Total eclipses are visible from some place on the earth's surface (on
average) how often (within 10%)? ____________________________
24. Tomorrow the solar corona will shine in which constellation? _________
25. This eclipse takes place at which node (ascending or descending)?
FOR EXTRA CREDIT ANSWER THE FOLLOWING QUESTION:
26. solar eclipse expeditions usher in the age of
(a) Aquarius ______________
(b) Poverty ______________