What:
an annual celestial light show of "falling
stars" or meteors.
When: This year, peak viewing occurs on October
20-21, 2012 beginning at midnight, growing more
spectacular in the early morning hours until dawn.
Where: Orionids originate in the southeastern
sky between the Gemini and Orion constellations.
What to bring: lawn chair, bottled water
or hot cocoa, camera, tripod.
Every year in
the early morning Autumn sky the annual Orionid meteor shower puts on a spectacular celestial show.
The Orionids
usually occur from October 17 - 25 and in 2012 are scheduled to
peak late night on October 20 and continue overnight into the early morning hours of October
21.
The good news this year is that a waxing crescent moon will set by midnight, just as the Orionids hit their peak, allowing for optimum viewing in 2012.
The Orionids
are truly a universal entertainment, since the shower's radiant
point is close to the celestial equator. That means in both the
northern and southern hemispheres astronomers (amateur and otherwise)
can sit back and enjoy the show.
The origins of Orionids
In the night sky, Orionid meteors stream from what appears to be the elbow of Orion the Hunter in the Orion constellation. Yet their real origins are even more intriguing.
Named for
astronomer Edmond Halley, Halley's Comet makes a visit to our inner solar system approximately every 76 years. Each time the
famous comet swings by the sun, ice and bits of rocks are evaporated
and bits of debris are sent flying off into space. Although most
are not bigger than a speck of sand, they result in a brilliant
show as they hit the atmosphere at some 90,000 mph. It is the
comet remnants that stay behind which are responsible for the
annual Orionid display.
The Orionids
are the second of two showers that occur annually (the first being
the Eta
Aquarids) as a result of dust released by Halley's Comet.
How to
view Orionids
Today, the best place to observe the Orionid meteor shower (or
any meteor shower for that matter), is somewhere dark, away from
light pollution, and with the moon out of the field of vision.
The less light visible, the more brilliant the meteor shower will
be.
While mostly
viewable to the naked eye, the annual Orionid meteor show may
be partially obstructed by the moon, clouds or night mist, so
amateur astronomers may want to carry along a pair of binoculars
just in case.
Even on clear nights, some type of viewing aid may come in handy for catching sight of even the faintest
of falling stars, aptly named "telescopic" meteors.
However, most experts advise to just forget the telescope - and simply look up
toward the southeastern sky.
For photographing
the annual event, a digital camera mounted on a tripod helps to
steady the images that swiftly move across the sky. A quick trigger
finger also helps, but even random clicks during the height of
Orionid "prime-time" will also guarantee that you'll
catch something! Be sure to have the camera focused on infinity
and, if your camera permits, leave the shutter open for several
minutes for the most spectacular photographic effects.
More about Orionid meteor showers around the Web:
Observing
the Orionids - Historical background, facts and information
with related photos, diagrams, and scheduled peak dates and best
viewing times.