Your
telescope will open up many worlds for you. Here’s a quick sample of
what’s possible for you to see when looking at the sky or the earth
with your scope.
THE MOON
Prepare for an awesome spectacle.
The moon's disk has a pastel-cream and gray background, streamers of
material from impact craters stretch halfway across the lunar surface,
river-like rills wind for hundreds of miles, numerous mountain ranges
and craters are available for inspection. At low or high power the moon
is continually changing as it goes through its phases. Occasionally you
will be treated to a lunar eclipse. Imagine all the colors of all the
sunrises and sunsets in the world at once – that’s what you’ll see
during a total lunar eclipse!
THE SUN
It
is quite safe to view the sun if you use a proper solar filter. The sun
is fascinating as you watch the ever-changing sunspot activity. Special
solar filters will allow you to see details like prominences, granules
and plages. If you are fortunate enough and you are willing to travel
to remote locations, you may experience a solar eclipse. It's an
awesome phenomenon as darkness falls from the moon’s shadow sweeping
across the earth’s surface at 1500 miles per hour, then the beautiful
diamond ring gleams as the last sunlight winks out behind the moon and
the ethereal coronal halo appears.
THE PLANETS
Observation
of planets will keep you very busy. You can see Jupiter with its great
red spot change hourly, study the cloud bands and watch its moons
shuttle back and forth. Study spellbinding Saturn and its splendid ring
structure, watch Venus and Mercury as they go through their moon-like
phases. Observe Mars and see its polar cap changes or watch the dust
storms and deserts bloom with life. Uranus, Neptune and Pluto can be
seen easily with 8" or larger telescopes
STAR CLUSTERS
A
group of many stars that are gravitationally bound to each other. There
are two types of star clusters: open star clusters (also called
galactic clusters), which are loosely arranged groups of stars and
globular star clusters, which are tightly packed groups of many
millions of stars. You’ll get hooked on the jewel boxes of open
clusters and resolving globulars into individual faint stars.
NEBULAE
These
glowing clouds of gas come in two major types: planetary nebulae, which
are relatively small ball-shaped clouds of expanding gases and are
believed to be the remnants of stellar explosions and diffuse nebulae,
which are vast, irregularly-shaped clouds of gas and dust. Their
unusual shapes and faintness will challenge beginning and advanced
observers alike.
GALAXIES
These
vast, remote "island universes," each composed of many billions of
stars, exist in a variety of sizes with regular and irregular shapes.
The shapes of elliptical galaxies are easy to see even in smaller
scopes, while the arms of spiral galaxies can be discerned with larger
instruments.
COMETS
Magnificent
comets are routinely visible through telescopes. The names of the
bright ones are legendary: Halley, Hale-Bopp, McNaught. After you’ve
been a skywatcher for several years, you too will be able to have your
own memories of seeing a famous name comet.
DOUBLE AND BINARY STARS
These
are close pairs of stars. A double star can also be a binary star. A
binary star’s components are orbiting around a common center of
gravity. Doubles often have different and contrasting colors. You’ll
always remember the first time you saw gold and blue-green Albireo
through your telescope.
What
you can see with your telescope is dependent on a lot of factors. For
astronomy, the most important factor is aperture. Optical quality,
steadiness of your tripod and mount, seeing conditions, your location
(city or rural), brightness of the object and your experience are also
important. You won't be able to see the American flag on the surface of
the moon or black holes. You won't see as much color as you see in
astrophotographs (photos of celestial objects) because these utilize
long exposure times which allow the light and color to build up on the
film.
Most
telescopes can be used to see things on the Earth (terrestrial
viewing). You can use them for nature study, sports action,
surveillance or landscapes. You can also easily photograph terrestrial
objects since a telescope can be used as a long telephoto lens by
attaching your camera.
Astrophotography
is also a rich and rewarding experience. With many telescopes it is
relatively easy, but takes patience and experience to produce excellent
results whether digital or on film.