Celestron STAR HOPPER Instruction Manual page 25

wavelengths of light, specifically those produced by artificial lights. This includes mercury, and high and
low pressure sodium vapor lights. Additionally, it blocks unwanted natural light (also known as sky
glow).
Polarizing Filter Set (#93608)
The polarizing filter set limits the transmission of light to a specific plane, thus increasing contrast
between various objects. These filters are especially helpful for lunar and planetary observing.
Sky Maps (#93722)
When learning the night sky, Celestron Sky Maps offer just the guidance you need. The maps show all
the constellations and brighter deep-sky objects and are printed on heavy, moisture-resistant paper for dur-
ability. The front cover features a rotating planisphere, indicating when specific constellations are visible.
Solar Filters
®
Celestron's Solar Skreen solar filter (#94134 for the Star Hopper 4½) permits completely safe, direct
observation of the sun. This filter, which transmits .001% of visible light, allows sunspots to be seen as
they move across the solar disk. While reducing the intensity of the sun's visible light, it also blocks
99.999% of invisible infrared light. The Solar Skreen solar filter is made of precision engineered Mylar
polyester film. A layer of aluminum is vacuum-deposited on one surface of the dual sheets of Mylar used
to make each filter. This aluminum coating produces a cool, comfortable, pale blue image of the sun. A
#21 orange eyepiece filter works well in conjunction with the Solar Skreen filter to produce a more
naturally colored image of the sun.
Star Pointer (#51630)
This electronic finderscope can be used on any telescope by itself, or as a complement to other
finderscopes for easily locating objects. It's used with both eyes open and features variable brightness
control for comfortable viewing. It works by projecting a red dot on the image of the object to be viewed
in the sky, which the telescope is then lined up with. This finderscope is compact and light-weight, it
weights just 1.5 oz. and is only 4.5" in length, and is easily mounted using the adhesive strip on its base.
Peterson First Guides® - Astronomy (93728)
A simplified field guide to the stars, the planets and the universe featuring full color maps showing the
positions of the stars throughout the year. This useful guide also includes beautiful constellation
paintings, photographs, and clear, concise descriptions of stars, the planets, the sun, the moon, comets,
black holes, galaxies and more.
Planisphere (#93720)
A colorful rotating star map that indicates when specific constellations are visible, with removable
markers for tracking the movement of solar system objects. Available in three different latitudes: 30°,
40° and 50°.
"The Sky - Level 1 from Celestron" CD-ROM (#93700) presented by Celestron and Software Bisque,
is the most comprehensive CD-ROM on the market for all levels of astronomers. It features a 10,000
object database, 75 full color enhanced images, 360° screen rotation, zoom from 4° to 235°, realistic sky
display showing stellar brightness and contrast and more. Comet Hale-Bopp and Hyakutake coordinates
included. This CD-ROM is easy to load, requiring only a 4MB system to run. Windows and Windows 95
compatible.
A full description of all Celestron accessories can be found in the Celestron Accessory Catalog
(#93685).
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