Benutzeranleitung / Produktwartung 80GTL des Produzenten Celestron
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I I N N S S T T R R U U C C T T I I O O N N M M A A N N U U A A L L N N e e x x S S t t a a r r 8 8 0 0 G G T T L L.
2 T T A A B B L L E E O O F F C C O O N N T T E E N N T T S S INTRODUCTION ............................................................................................................................................................. 4 W W a a r r n n i i n n g g .
3 Observing the Sun .............................................................................................................. ................................... 24 Solar Observ ing Hints ..........................................................
4 Congratula tions on y our purcha se of the Celes tron Nex Star! T he Ne xStar ushe rs in a w hole new g enera tion of compute r automa ted technolog y . Simple and f riendly to use , the Ne xStar is up a nd runn ing af ter loca ting just tw o alig nment sta rs.
5 1 Objective Lens 7 Focuser Knob 2 Fork Arm 8 Erect Image Diag onal - 90˚ 3 Power Outlet 9 Eyepiece 4 Tripod 10 Star Pointer F inderscope 5 Hand C ontrol 11 Optical Tu be 6 Accessory Tray w/ hand co.
6 The Nex Star comes partially assemble d and can be operati onal in a ma tter of minutes. T he NexSta r is conveniently pac kaged in one reu sable shipping cart on that contain s the following access.
7 3. From underneath the tripod s upport brace, thread the locking bo lt into the hole in the center of the accessory tray. Do not over tighte n. The accessor y tray has a built-on han d control holder protrudi ng from the side. The ba ck of the hand contro l has an ope ning that s lides ov er the c lip on the inside of the ho lder.
8 T T h h e e E E y y e e p p i i e e c c e e The eyepi ece, is th e optical el ement th at magnifies t he image focused b y the teles cope. The eyepiece fits eith er directl y into the focuser or i nto the diago nal. To install th e eyepiece: 1. L oosen the thumbs crew on the dia gonal s o it does not obstruct the in ner diam eter of the barrel.
9 not dam age the glass w indow or y our ey e. The Sta r Pointer co mes e quipped with a varia ble brig htness c ontrol, tw o axe s alignme nt control a nd m ounting brack ets.
10 U U s s i i n n g g y y o o u u r r S S o o l l a a r r F F i i l l t t e e r r Solar ob serving is one o f the most rewarding for ms of celestial ob servations. Yet, because the S un is so bright, sp ecial precaut ions must be taken to ensure your safet y and protect your equipment.
11 A A t t t t a a c c h h i i n n g g t t h h e e H H a a n n d d C C o o n n t t r r o o l l The Ne xStar GT hand control has a phone jack type connector a t th e end of its cord. Plug t he phone jac k connec tor into t he outl et at the base of the telescope’s fork arm.
12 Planets - A ll 8 planets in our S olar Sy stem plus the Mo on. Stars – A compiled list of the b rig htest st ars from the SAO catalo g. List – For quick access, all of the b est and most po pul.
13 10. Scroll K eys: Used to sc roll up a nd dow n within a ny of the m enu lists. A double arrow sy mbol on the rig ht side of the LCD indicates that the scro ll keys can be used to view additional information. 11. Rate: Instant ly changes the rate of speed of the moto rs when the directi on button s are pressed.
14 Y Use the Up an d Down scrol l keys to ch oose between City Database and Custom Site . City D ataba se will allow you to select the c losest city to your observing site from a list of eithe r international or U.S. locatio n. Custom Site allows you to enter t he exa ct longitu de and la titude of y our obser ving site .
15 1. Once the NexS tar is powered on, use the Up and Down scroll keys to select Two Two Two Two- - - -Star Al ign Star Align Star Align Star Align , and pr ess ENTER. 2. The Nex Star display w ill ask y ou to m o ve the telescope tube until it is horiz ontal t o the groun d.
16 Object Catalog S S e e l l e e c c t t i i n n g g a a n n O O b b j j e e c c t t Now tha t the tele scope is prope rly a ligned, y ou can choos e an obj ect fr om any of the catalog s in the Nex Star's data base . The hand con trol has a key designated for each of the cat alogs in its d atabase.
17 • To slew to the object display ed, pr ess ENT ER. • To see the n ext tour obj ect, press the Do wn key. Directi on Buttons The Nex Star has four direc tion buttons in t he center of the hand control w hich co ntrols the tele scope m otion in altitu de (up an d down) and azimuth (left and right).
18 Alt-Az This is the def ault trac king rate and is use d when t he telescope has be en properly alig ned. EQ North Used to track the sky when the tele scope is polar a ligned using an equatorial w edg e in the N orthern Hemis phere.
19 object s are relative to th e location of th e telescope, th ey are o nly valid for t hat exact locat ion. To save land objects, once again center th e desired o bject in t he eyepiece. Scroll d own to th e " Save Land Obj " comm and a nd press ENTER.
20 Slew Li mits – Se ts the lim its in altitude that the te lescope c an slew w ithout display ing a warning message first. T he NexStar hand con trol w ill w arn y ou before a llowing the telesc ope tu be to s lew to an obje ct be low the hor izon or slew to a n objec t that is high en ough tha t the tube m ight hit one of the tr ipod le gs.
21 ALT- AZ E Q NO RT H EQ SOUT H OF F MO D E SIDEREAL SOLAR LUN AR RA TE T RA CKING V IEW T IM E-SIT E SIDERE A L T IM E ALTMAX I N LI ST A L T M IN IN L IS T FILTER LIM IT S SET UP T IME/ SIT E ANT I.
22 Correct i mage as view ed when using er ect image di agonal Inverted i mage, as view ed with the eyepiece directly in telesco pe A telescope is an instrume nt that collects a nd focuses lig ht. The nature of the optic al design de term ines how the light is f oc use d.
23 D D e e t t e e r r m m i i n n i i n n g g F F i i e e l l d d o o f f V V i i e e w w Determining the f ield of v iew is important if you want to g et an idea of the ang ular size of the ob ject y ou are observ ing.
24 With y our teles cope set up, y ou are rea dy to use it f or obse rving. T his se ction cov ers vis ual observ ing hints for bot h solar sy stem and deep sky objects as well a s general observ ing conditio ns which w ill aff ect your ability to observ e.
25 •S uns pot s : Dark regions of the sun' s phot osphere w hich ar e coole r than the surrou nding a rea. Su nspots a re usua lly seen to co nsist of two pa rts: the in ner dark er core, the um bra, and t he surrou nding le ss dark region, t he penum bra.
26 object s. Aerosols ejected i nto the upper atmosphere fro m volcanic erup tions also affect transp arency. Id eal conditions are when th e night sky is in ky black.
27 While your Ne xStar tele scope require s little m aintenance , there are a f ew things to re mem ber that will ensure y our telescope perform s at its be st. Care and Cleanin g of the Optics Occasionally, dust and /or m oisture may build up on the le ns of your telescope.
28 You will find that add itional accessories enhance y our viewing pleasu re and expand th e usefulness of your telescope. For ease of reference, all the accessor ies are listed i n alphabeti cal order. Adapter, A C (# 18773) – A llows DC (battery ) powe red telescope s to be co nverte d for use w ith 120 v olt AC power.
29 Filter, Light Pollution Redu ction –LPR (#94126A) - The se filte rs are designed to enha nce y our views of deep sky astronom ical obje cts w hen view ed from urban area s. LPR Filters s electiv ely reduce the transm ission of certain w avele ngths of lig ht, specif ically those pr odu ced by artif icial lights .
30 A PPENDI X A - TECHNIC A L SPECIFIC A TIONS O O O p p p t t t i i i c c c a a a l l l S S S p p p e e e c c c i i i f f f i i i c c c a a a t t t i i i o o o n n n NexStar 80GTL Design Refractor Ap.
31 GLOSSARY OF TERMS A - Absolute magnitude The a pparent m agnitude tha t a sta r w ould hav e if it w ere obse rved from a sta ndard distanc e of 10 parsec s, or 32.6 lig ht-ye ars. The a bsolute m agnitude of the Su n is 4. 8. at a distance of 10 parsecs , it would just be visible on Earth on a clear moonless nig ht away from surface light.
32 J - Jovian P lanets Any of the four gas giant plan ets that are at a greater d istance form the su n than the t errestrial planet s. K - Kuiper Belt A reg ion bey ond the or bit of Neptune extendi ng to a bout 100 0 AU w h ich is a source of m any short period com ets.
33 Term inator The bou ndary line betw een the li ght and dark por tion of the m oon or a pla net. U - Univers e The totality of astronom ical things , events , relations a nd energ ies ca pable of being des cribed object ively.
34 Appendix C - RS-232 Connection You can co ntrol y our NexStar telesc ope w ith a com puter via the PC port on the ha nd control and us ing a n optional RS- 232 cabl e (see Optional Accessor ies section of manual). Once co nnected, th e NexStar can be con trolled usin g popular astronomy software program s.
35 A PPENDIX D – MA PS OF TIME ZONES.
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CELESTRON TWO YEAR WARRANTY A. Celestron warran ts this telescope t o be free from defects in mat erials and workmanship for two years. C elestron will repai r or replac e such produc t or part thereof which, upon insp ection by Celest ron, i s found to be d efective in materials or workma nship .
Celest ron 2835 C olumbia Stre et Torra nce, CA 90503 Tel. ( 310) 3 28-9560 Fax. ( 310) 212 -5835 Web site a t http//www .celestron.c om Copy right 20 04 Celes tron All rights reserved. (Products or instr uctions m a y change without notice or obligation.
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