Celestron NEXSTAR 4 Manuel d'utilisateur

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10The Star Pointer FinderscopeThe Star Pointer is the quickest and easiest way to point your telescope exactly at a desired object in the sky. It&apos

115. Without moving the main telescope, turn the Star Pointer's azimuth and altitude alignment controls until the reddot is directly over the ali

12The NexStar 4 has a removable hand controller built into the side of the fork arm designed to give you instant access to allthe functions the NexSta

13Caldwell – A combination of the best NGC and IC objects.Planets - All 8 planets in our Solar System plus the Moon.Stars – A compiled list of the bri

14to use your hand control on a different NexStar model, the Select Model utility feature allows you to re-select the properNexStar model from the dis

15procedure for that star. When the telescope has been aligned to both stars the display will read Alignment SuccessfulAlignment SuccessfulAlignment S

16NexStar Re-AlignmentThe NexStar has a re-alignment feature which allows you to replace either of the two original alignment stars with a newstar or

17The speed at which information scrolls across the hand control display can be changed while the information is beingviewed:• Press the “1” key repea

18• Press the RATE key on the hand control. The LCD will display the current speed rate.• Press the number on the hand control that corresponds to the

19If you want to explore the entire object database, set the maximum altitude limit to 90º and the minimum limit to –90º. Thiswill display every objec

iiINTRODUCTION ...

20UUttiilliittyyFFeeaattuurreessScrolling through the MENU options will also provide access to several advanced utility functions such as anti-backlas

21ALT-AZEQ NORTHEQ SOUTHOFFMODESIDEREALSOLARLUNARRATETRACKINGVIEW TIME-SITESIDEREAL TIMEALTMAX IN LISTA L TM IN IN L IS TFILTER LIMITSSETUP TIME/SITEA

22Fig5-2a-Actualimageorientation as seen with theunaided eyeFig 5-2b - Reversed from left toright, as viewed through theeyepieceFigure 5-1AAccuuttaaww

23Figure 5-3Theemblemontheendofthe focus knob shows thecorrect rotational directionfor focusing the NexStar.FFooccuussiinnggThe NexStar's focusin

24GGeenneerraallOObbsseerrvviinnggHHiinnttssWhen working with any optical instrument, there are a few things to remember to ensure you get the best po

25Up to this point, this manual covered the assembly and basic operation of your NexStar telescope. However, tounderstand your telescope more thorough

26MMoottiioonnoofftthheeSSttaarrssThe daily motion of the Sun across the sky is familiar to even the most casual observer. This daily trek is not the

27PPoollaarrAAlliiggnnmmeenntt((wwiitthhooppttiioonnaallWWeeddggee))Even though the NexStar can precisely track a celestial object while in the Alt-Az

28Photography with the NexStar 4After looking at the night sky for a while you may want to try photographing it. In addition to the specific accessori

29Since the Little Dipper (technically called Ursa Minor) is not one of the brightest constellations in the sky, it may bedifficult to locate from urb

iiiMOTION OF THESTARS... 26P

30With your telescope set up, you are ready to use it for observing. This section covers visual observing hints for bothsolar system and deep sky obje

31OObbsseerrvviinnggtthheeSSuunnAlthough overlooked by many amateur astronomers, solar observation is both rewarding and fun. However, becausethe Sun

32SeeingSeeing conditions refers to the stability of the atmosphere and directly affects the amount of fine detail seen in extendedobjects. The air in

33While your NexStar telescope requires little maintenance, there are a few things to remember that will ensure your telescopeperforms at its best.CCa

34 You will find that additional accessories enhance your viewing pleasure and expand the usefulness of your telescope. Forease of reference, all the

35available in the following focal lengths: 2.5mm, 4mm, 5mm, 6mm, 9mm, 10mm, 12mm and 15mm. Celestron also offersthe LV Zoom eyepiece (#3777) with a f

36Tripod, NexStar (#93497) - A stable tripod is a must for serious astronomicalobserving and photography. This steel field tripod (#93497) folds down

37Appendix A - Technical Specifications OOOppptttiiicccaaalllSSSpppeeeccciiifffiiicccaaatttiiiooonnnDesign Maksutov-Cassegrain CatadioptricAperture 4

38AAppppeennddiixx BB -- GGlloossssaarryy ooff TTeerrmmss A-Absolute magnitude The apparent magnitude that a star would have if it were observed

39F-Focal length The distance between a lens (or mirror) and the point at which the image of an object at infinity isbrought to focus. The focal lengt

4Congratulations on your purchase of the Celestron NexStar! The NexStar ushers in a whole new generation of computerautomated technology. Simple and f

40Resolution The minimum detectable angle an optical system can detect. Because of diffraction, there is a limitto the minimum angle, resolution. The

41AAppppeennddiixx CC –– MMaappss ooff TTiimmee ZZoonneess

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CELESTRON ONE YEAR WARRANTYA. Celestron International (CI) warrants this telescope to be free from defects in materials and workmanship for one year.

52133Focuser KnobStarPointerEyepieceFlip MirrorAttach the included accessories (eyepiece and StarPointer finderscope) and remove the front lenscover.

Celestron International2835 Columbia StreetTorrance, CA 90503Tel. (310) 328-9560Fax. (310) 212-5835Web site at http//www.celestron.comCopyright 2001 C

6Input the necessary date and time information asinstructed by the hand control. Press ENTER aftereach entry. The NexStar will also ask for time zonea

71 Optical Tube 6 Focuser Knob2 Liquid Crystal Display 7 Straight Through Photographic Adapter3 Hand Control 8 Flip Mirror Control4 ON/OFF Switch 9 Ey

8The NexStar 4 comes completely pre-assembled and can be operational in a matter of minutes. The NexStar is convenientlypackaged in one reusable shipp

9The Hand ControlThe hand control is located on the side of the fork arm and can be removed and used remotely or used while attached to thefork. The h