ページ15に含まれる内容の要旨
#8 Yellow 83% T [Series 4] All observing information for this filter is the same as that given for the #12 and #15 Deep Yellow filters, with the exception of the following: Mars – Improves the Martian maria by reducing scattered light from blue areas, while allowing passage of more green light for studying yellow dust clouds. Comets – Brings out highlights in yellowish dust tails and enhances appearance of comet heads. ORANGE #21 Orange 46% T [#94118-05 & Series 1] Moon – Greatly enhances
ページ16に含まれる内容の要旨
GREEN #56 Light Green 53% T [Series 2] Moon– Enhances lunar features. Jupiter – Increases visibility of the Great Red Spot. Useful for observing the low-contrast hues of blue and red that exist in the Jovian atmosphere. Mars – Excellent for increased contrast of Martian polar caps, low clouds and yellowish dust storms. Venus – Useful for Venusian cloud pattern studies. Reduces brightness of blue sky during daylight observing. #58 Green 24% T [#94118-11 & Series 3] All observing information
ページ17に含まれる内容の要旨
1 1/4" Polarizing Filter Set: – #93608 Ambient daylight is normally comprised of multiple wavelengths of light, vibrating in multiple planes. The Eyepiece Polarizing Filter Set transmits only light moving along a specific plane, thereby increasing the contrast between surfaces with different planar transmissions. Generally, the polarization effect makes blue skies a deeper blue, eliminates surface reflections and helps reduce atmospheric haze. The Polarizing Filter Set is intended for visual us
ページ18に含まれる内容の要旨
Solar Filters ® Celestron’s Solar Skreen solar filters transmit .001% of visible light, allowing direct observation of the sun. You can see sunspots and the mottled areas known as granules with these filters. In addition to reducing the intensity of the sun’s visible light, they also block 99.999% of invisible infrared light, so you can observe the sun in complete safety and comfort. The material used to make these filters is a strong, precision engineered, aluminized Clockwise: #94162, polyest
ページ19に含まれる内容の要旨
LPR Filters #94127A Light Pollution Reduction (LPR) Filters are designed to selectively reduce the transmission of certain wavelengths of light, specifically those produced by artificial light. This includes mercury, and both high and low pressure sodium vapor lights. In addition, they block unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. sky glow). As a result, Celestron LPR Filters darken the background sky, making deep-sky observation and photography of #9412
ページ20に含まれる内容の要旨
MOTOR DRIVES To allow automatic tracking of celestial objects, Celestron offers several motor drives. All models include a hand controller, which makes observ- ing more fun as it makes centering objects much easier. In addition, the hand controller can be used as a drive corrector for long expo- sure celestial photography. Economy Models These models are single axis (R.A.), DC motor #93517 drives. They are powered by four D-cell batteries (not included). 2x and 4x sidereal speeds are available t
ページ1に含まれる内容の要旨
1998
CELESTRON
Accessories
ページ2に含まれる内容の要旨
TABLE OF CONTENTS Accessories — General Guiding Eyepieces & Illuminators . . . . . . . . . . . . .21 AC Adapters . . . . . . . . . . . . . . . . 3 Binocular Neck Strap . . . . . . . . . 3 Photo Accessories Binocular Tripod Adapter . . . . . . 3 Reducer/Corrector f/6.3 . . . . . . .22 Cases . . . . . . . . . . . . . . . . . . . . . 3 Radial Guider . . . . . . . . . . . . . . .22 Car Battery Adapters . . . . . . . . . . 4 Hand Controller . . . . . . . . . . . . .23 Collimation Tool . . . .
ページ3に含まれる内容の要旨
ACCESSORIES — GENERAL AC Adapters Allow DC (battery powered) telescopes to be convert- ed for use with 120 volt AC power. + 1 AC Adapter – C5 , Celestar 8, Ultima 9 /4 & 11 [18772] AC Adapter – Celestar 8 Deluxe, G-9, G-11 and G- ® 14 Mounts, Ultima 2000 [18770] Binocular Neck Strap – #71520 This wide, black cloth strap, enhanced with the Celestron logo, is designed to add greater comfort and ease of use to your binocular viewing. Fits most manufacturers’ binocular models. Binocular Tripod Ada
ページ4に含まれる内容の要旨
Car Battery Adapters Allow you to link your telescope drive directly to #18769 the cigarette lighter receptacle of your car, for a quick and easy DC power source in one step. #18767 ® + Car Batter Adapter – C5 , Celestar 8, Ultima 1 4 9/ & 11 [18767] ® Car Battery Adapter – Ultima 2000 [18769] Collimation Tool – #94183 The optical performance of most Newtonian tele- scopes can be optimized by collimating, or realign- ing, the telescope’s optics, as needed. This procedure is easily accomplished
ページ5に含まれる内容の要旨
Focuser Assembly – #93670 Celestron offers this very smooth and economical 1 4 1 / " rack and pinion focuser for Newtonian telescopes. The focuser glides easily and provides 2" of focus travel. An adapter is included to allow use 1 4 with .96" eyepieces as well as 1 / " eyepieces. ™ LensPen – #93575 A superb new tool in optical lens cleaning technol- ogy. Perfect for cleaning binocular lenses, small aperture spotting scopes and telescopes, eyepieces, and other optical items. ™ The LensPen come
ページ6に含まれる内容の要旨
EYEPIECES 1 Economy Eyepieces: .96" and 1/4" Celestron offers these very economical eyepieces to expand your viewing options. They are all simple eyepiece designs — Ramsden (SR & F) and Huygens (H & HM) but perform quite well on f/8 or slower telescopes. The optics are all glass and .96" models they’re priced to make a complete range of powers easily available. Focal Item # Item # Eye Apparent 1 Length .96" 1/4" Relief Field 4mm – SR 93201 93220 3mm 28° 6mm – F 93202 93221 3mm 28° 8mm – H 93203
ページ7に含まれる内容の要旨
1 Plössl Eyepieces: .96" and 1/4" In a recent Sky and Telescope review, Celestron’s .96" 1 4 and 1 / " Plössl eyepieces were rated as top ranking, and found to outperform many similar, but more expensive eyepieces. An exceptional value! Celestron offers these premium eyepieces at affordable prices, yet they’re among the best designed and corrected eyepieces available. They’re multicoated for enhanced contrast and all of the 1 4 1 / " models are threaded to accept Celestron colored eyepiece filte
ページ8に含まれる内容の要旨
1 LV Eyepieces: 1/4" These Vixen brand eyepieces (6 to 8 elements) are a new breed, using the rare earth glass lanthanum in one of their field lenses, for almost total freedom from any visual aberrations. All focal lengths have a comfortable 20mm of eye relief. Even when using the 2.5mm LV eyepiece on a telescope, you’ll have eye relief of 20mm! These eyepieces also feature soft rubber eyecups, rubber coated bodies, and fully multicoated lenses for optical excellence. Focal Length Item # Apparen
ページ9に含まれる内容の要旨
Ultima Spotting Scope Eyepieces Extremely high quality eyepieces designed exclusively for the Ultima line of spotting scopes. Model 65mm Spotter 80mm Spotter Mount Type #1828 20x 25x Bayonet #1830 40x 50x Bayonet #1838 16-48x Zoom 20-60x Zoom Thread Clockwise: #1838, #1828, #1830 Eyeguard Set — #93330 1 4 A set of 10 rubber eyeguards that fit Celestron 1 / " Economy, SMA and Plössl (except 32 and 40mm) eyepieces as well as many eyepieces of other manufac- turers. Allows more comfortable viewing
ページ10に含まれる内容の要旨
BARLOW LENSES Barlow lenses offer an easy, economical way to increase the magnification range of your eyepieces, and Celestron carries an assortment of these highly useful lenses. A Barlow lens doubles the magnifying power of your eyepiece by doubling its effective focal length. For example, an 18mm eyepiece used with a 2x Barlow lens would have the magnifying power of a 9mm eyepiece. It’s like having two eyepieces in one! If you’re looking for an affordable way to achieve Top: #93506, 93502, #9
ページ11に含まれる内容の要旨
DIAGONALS 1 Diagonals: .96" and 1/4" Celestron’s Erect Image Diagonals are an Amici prism design. This design allows you to look into the telescope at a 45° angle, at images that are oriented properly, meaning the image is upright and correct from left to right. Use of Celestron’s .96" 1 to 1 /4" 45° Erect Image Diagonal on a telescope equipped with .96" eyepieces means greater versatil- 1 ity. This diagonal will allow you to use 1 /4" eye- pieces, to obtain a larger field of view and better eye
ページ12に含まれる内容の要旨
FINDERSCOPES Finderscopes are secondary scopes, used to help locate objects in the main telescope. The larger the finderscope, the more you’ll see, to an upper limit of 50mm. Units larger than 50mm have too narrow a field of view to be useful. Finderscopes mount onto the main telescope tube and are an invaluable tool in locating objects for viewing. Clockwise: #93777, #93775, #93779, #93783-8 5x24 Finderscope – #93775 ™ An economical finderscope for Celestron’s Star Hopper Dobsonian telescopes.
ページ13に含まれる内容の要旨
Quick Release Finder Bracket – #51149-A A unique bracket for 50mm finderscopes, it’s 1 designed for C8, C9 /4 and C11 telescopes. No tools are required, and once it’s aligned, you can take it off and put it on without losing alignment. Bracket includes necessary mount- ing hardware. The additional weight of this accessory may require that you use additional optional counterweights for your telescope. Star Pointer – #51630 A 1x, or unit power finderscope designed so you can point the telescope
ページ14に含まれる内容の要旨
FILTERS Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue. Celestron’s filters are made of high quality, solid plane parallel glass with excel- lent homogeneity. They’re anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit Celestron’s, and most other manufacturer’s,
