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2022-08-26
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How will Halley's Comet look?
-----------------------------
Comet Halley has a long history of
dazzling and dramatic celestial
displays. Those displays were a
result of both close approaches and
good relative positioning between the
comet, the Earth and the Sun.
Unfortunately, this visit will not
measure up to the same magnitude as
those which have preceded.
Although it is not possible to
predict with exact certainty how
bright a comet will be, it is fairly
well acknowledged that Halley's Comet
will, at its best, be only a faint
smudge in the night sky. That is not
to say that such an image, in itself,
will not be exciting or stimulating,
but it will not be dazzling to the
naked eye.
There are several things that a
person can do to optimize the
experience of comet watching. They
are...
- Observe from locations far from
city lights and atmospheric pollution.
High mountain tops are the ideal, but
any open country setting will yield
startling results when compared with
city viewing.
- Use a set of binoculars or a wide
angle telescope. 7 X 35 binoculars
are OK, but 7 X 50's are better. If
using a telescope for comet watching,
best results are obtained using a
wide aperture system that gathers the
most light available. Warning: do
not be misled into thinking that a
higher powered 'spyglass' type scope
will yield better results. Although
the magnification may be greater,
these scopes usually have much lower
light gathering capacity and a narrow
field of vision.
- Take pictures! Using a 35mm
camera with a standard 50mm lens will
produce extraordinary pictures of the
comet! Use a tripod for stability.
Use ISO (ASA) 1000 daylight slide or
print film. Focus on infinity and
open the aperture to the widest
position (i.e., use the lowest f-stop
setting). Take timed-exposures from
5 seconds to several minutes. Note:
try to take at least one normal
picture of friends or surroundings on
the film roll so that the photo
processing house will have a
reference frame with which to cut the
roll into frames. Also, write
specific instructions on the film
package instructing the film
processor to develop and print ALL
frames. Without this, a film
technician might think you've got a
bad roll of film, what with all of
the dark, 'smudged' frames.
- Take a trip to New Zealand or
South America, where the viewing will
be the best! Travel agencies are
offering dozens of 'Comet Watch' tours
to the Southern Hemisphere to
celebrate the event (and to make some
big bucks).
----< continued in next article >-----