Nexstar 102 Telescope User Manual


 
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You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. For
ease of reference, all the accessories are listed in alphabetical order.
Adapter, Car Battery (#18769) - Celestron offers the Car Battery Adapter that allows you to run the NexStar drive off
an external power source. The adapter attaches to the cigarette lighter of your car, truck, van, or motorcycle.
Barlow lens, OMNI 1.25" (#93326) - Double the magnification of any of your
Celestron eyepieces with this fully multi-coated, low profile Barlow lens
Carrying Case, Soft NexStar 60/80/102 (#302160) - Lightweight yet durable,
this nylon case is ideal for transporting your NexStar telescope. The shoulder and
back straps provide hands-free convenience to make carrying your telescope
anywhere even easier.
Erect Image Diagonal (#94112-A) - This accessory is an Amici prism arrangement that allows you to look into the
telescope at a 45° angle with images that are oriented properly (upright and correct from left-to-right). It is useful for
daytime, terrestrial viewing with the NexStar 60, 80 and 102
Eyepieces - Like telescopes, eyepieces come in a variety of designs. Each design has its own advantages and
disadvantages. For the 1-1/4" barrel diameter there are four different eyepiece designs available:
OMNI Plössl - Plössl eyepieces have a 4-element lens designed for low-to-high power
observing. The Plössls offer razor sharp views across the entire field, even at the edges! In
the 1-1/4" barrel diameter, they are available in the following focal lengths: 4mm, 6mm,
9mm, 12.5mm, 15mm, 20mm, 25mm, 32mm and 40mm.
X-Cel - This 6 element design allows each X-Cel Eyepiece to have 20mm of eye relief, 55°
field of view and more than 25mm of lens aperture (even with the 2.3mm). In order to
maintain razor sharp, color corrected images across its 50° field of view, extra-low
dispersion glass is used for the most highly curved optical elements. The excellent
refractive properties of these high grade optical elements, make the X-Cel line especially
well suited for high magnification planetary viewing where sharp, color-free views are
most appreciated. X-Cel eyepiece come in the following focal length: 2.3mm, 5mm, 8mm,
10mm, 12.5mm, 18mm, 21mm, 25mm.
Ultima - Ultima is not really a design, but a trade name for our 5-element, wide field
eyepieces. In the 1-1/4" barrel diameter, they are available in the following focal length: 5mm, 7.5mm, 10mm 12.5mm,
18mm, 30mm, 35mm, and 42mm. These eyepieces are all parfocal.
The Eyepiece and Filter Kit (#94303) – contains Five Superior Grade Plössl Eyepieces -
1.25”. Barlow Lens - 2x 1.25”. Six Colored Eyepiece (Lunar & Planetary) Filters. Moon
Filter. Aluminum Carrying Case
Flashlight , Night Vision - (#93588) - Celestron’s premium model for astronomy, using two
red LEDs to preserve night vision better than red filters or other devices. Brightness is
adjustable. Operates on a single 9 volt battery (included).
Filter, Light Pollution Reduction –UHC/LPR (#94123) - These filters are designed to
enhance your views of deep sky astronomical objects when viewed from
urban areas. LPR Filters selectively reduce the transmission of certain
wavelength of light, specifically those produced by artificial lights. This includes mercury and high
and low pressure sodium vapor lights. In addition, they also block unwanted natural light (sky glow)
caused by neutral oxygen emission in our atmosphere.
UHC?LPR Filter - #94123