Bushnell 78-7830 3 REFLECTOR manual

Instructi on Manual COMPUTERIZED STAR LOC A TOR 78-7860 60mm Refrac t or 78-7880 80mm Refrac t or 78-7830 3” Reflec tor 78-7845 4.5” reflec t or Lit. #: 91-0219/03-01[...]

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Where DO I START? Y our Bushnell telescope can bring the wonders of the universe to your eye. While this manual is intended to assist you in the set-up and basic use of this instrument, it does not cover everything you might like to know about astronomy . Although Northstar will give a respectable tour of the night sky, it is recommended you get a [...]

78-7880 80mm Refrac to r P arts Diagrams 78-7860 60mm Refrac tor I M P O R T A N T : READ T H R O U G H A S S E M B L Y INSTRUCTION BEFORE YOU A S S E M B L E YOUR T E L E S C O P E . 4.[...]

78-7830 3” Reflec tor 78-7845 4.5” reflec t or P arts Diagrams (Continued) 1. Wide Field Finderscope 2. 1.25" Format Eyepiece 3. Penta Mirror 4. Rack and Pinion Focusing Mechanism 5. Accessory Tray Brace 6. Quick-Release Tripod Leg Lever 7. Quick-Release Accessory T ray 8. Onboard Computer 9. Main T elescope T ube 10. Quick-Release Adjusta[...]

78-7860 60mm Refrac tor 78-7880 80mm Refrac tor Quick Assembly Diagram 6.[...]

• Adjustable Aluminum Tripod Assembly (Three Legs) • Quick Release Accessory T ray • Northstar Computerized Star Locator Base • Northstar Telescope Tube w/ finger attachment nuts • Wide Field Finderscope • 20mm 1.25" Diameter Eyepiece • 4mm 1.25" Diameter Eyepiece • Barlow Lens • Erecting Lens (not included with model 78[...]

Detailed Assembl y No tools are required for assembly of your telescope. Remove all components from the carton and identify all components. It is a good idea to lay all the parts out in front of you before assembly. Since your telescope is a precision optical system the parts require careful handling—particularly the onboard computer, telescope, [...]

M ALIGNING FINDERSCOPE Look through Main Telescope Tube and establish a well-defined target. (see focusing telescope section) Looking through Wide Field Finderscope, alternate tightening each Finderscope Adjustment Screw until crosshairs of W i d e Field Finderscope are precisely centered on the same object already centered in Main Telescope T u b [...]

M ENJOYING YOUR NEW TELESCOPE 1. First determine your targeted object. Any bright object in the night sky is a good starting point. One of the favorite starting points in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become good[...]

M HELPFUL HINTS 1 . Your telescope is a very sensitive instrument. For best results and fewer vibrations set your telescope up on a level location on the ground rather than your concrete driveway or your wooden deck. This will provide a more stable foundation for viewing, especially if you’ve drawn a crowd with your new telescope. 2. If possible [...]

Butto n Fun ctions LCD DISPL A Y 1. Computer Link 2. Scroll Up Button 3. Scroll Down Button 4. Back Button 5. Enter Button 6. LCD Display 7. On/Off/Dim Button 8. Battery Cover Door 9. Battery Cover Set Screw No r thstar Computer Interface Diagra m The Liquid Crystal Display (LCD) is a two-line, sixteen character display. The LCD also has an electro[...]

M M ODE OVERVIEW OF PR ODUC T Explore: The Explore Mode of Northstar provides the ability to explore various astronomical objects categorized by object type. These objects would fall under one or more of the following types of objects: Deep Sky, Planets, Constellations, and Stars. Each of these subheadings would also have subcategories of objects b[...]

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M ALIGNING N O R THSTAR FOR THE FIRST TIME When you turn the telescope on a scrolling message will appear: The first display will then prompt you to level the telescope tube. The display will read: The display will alternate to: After the tube is leveled and ENTER is pressed, the display will briefly read Then the default menu will appear: This mod[...]

M ALIGNING NOR THSTAR FOR THE FIRST TIME (Continued) S T E P 3: SET THE LOCA T I O N The next screen will display: C I T Y will be flashing. By pressing the ENTER button, the display will change to: The country will be flashing. Again by using the SCROLL U P and SCROLLDOWN buttons and the ENTER button, the COUNTRY can be chosen. When the appropriat[...]

M ALIGNING N O R THSTAR FOR THE FIRST TIME (Continued) NOTE: THE USER WOULD JUST H A VE TO GET THE TELESCOPE POINTED RELA T I V E L Y CLOSE TO N O R TH. THE A L I G N M E N T W I L L BE REFINED AS WE PROGRESS. HOWEVER, IF YOU CAN FIND T H E BIG DIPPER AND USE THE "POINTER STARS", FOLLOW THE ARROW ON THE ABOVE DIAGRAM TO THE NORTH STAR. TH[...]

M USING NOR THSTAR FOR THE FIRST TIME After EARTH ALIGN, the display will then read: EXPLORE will be flashing. This indicates that you could choose other options by pressing the UP and DOWN buttons. However, let’s look at EXPLORE first. This is the default menu at this point because, this will most likely be the most often used mode. This is wher[...]

M USING NOR THSTAR FOR THE FIRST TIME (Continued) The TELESCOPE mode gives you dynamic real-time information on your telescope’s current position in terms of astronomical coordinates. Play around with this mode by moving the telescope around. Notice the three letter abbreviation in the lower right portion of the display. This dynamically displays[...]

20. The following appendix information is more thorough information than that listed in the main instruction manual. For sake of space, the complete 20,000 object catalog is not listed. However, we have included the entire star list and the entire Messier object lists for your information. In addition, the constellation abbreviations are defined th[...]

21. Andromeda (And) Antila (Ant) Apus (Aps) Aquarius (Aqr) Aquila (Aql) Ara (Ara) Aries (Ari) Auriga (Aur) Bootes (Boo) Caelum (Cae) Camelopardis (Cam) Cancer (Cnc) Canes Venatici (CVn) Canis Major (CMa) Canis Minor (CMi) Capricornus (Cap) Carina (Car) Cassiopeia (Cas) Centaurus (Cen) Cepheus (Cep) Cetus (Cet) Chameleon (Cha) Circinus (Cir) Columbi[...]

22. NAME - NAME RA - RIGHT ASCENSION (hours min.min) DEC - DECLINATION (degrees) MAG - MAGNITUDE SIZE - SIZE CON - CONSTELLATION Messier C a t alog C a t alog Ind e x MESSIER CA T ALOG NAME RA DEC MAG SIZE CON DESCRIPTION M001 Crab nebula supernova remnant NGC 1952 05 34.5 +22.0 8.4 6' T au nebula M002 NGC 7089 21 33.5 -0.8 6 7' Aqr globu[...]

M048 NGC 2548 08 13.8 -5.8 5.8 40' Hya open cluster rich M049 NGC 4472 12 29.8 +08.0 8.4 8' Vir round galaxy with bright core M050 NGC 2323 07 03.2 -8.3 6 20' Mon open cluster rich M051 Whirlpool NGC 5194 13 29.9 +47.2 8.1 1 1' Cvn spiral galaxy structure attached companion M052 NGC 7654 23 24.2 +61.6 7 12' Cas open cluster[...]

24. ST004 SU SU AND 00 04.6 +43.5 8 * And red variable star ST005 Ced214 Cederblad 21400 04.7 +67.2 7.8 30' Cep emission nebula ST006 ∑ 3062 ADS 61 00 06.3 +58.4 6.4 1.5" Cas double star challenge ST007 Alpheratz Alpha And 00 08.4 +29 05 2.1 * And star ST008 ∑ 2 Struve 2 00 09.3 +79.7 6.6 0.8" Cep double star challenge ST009 Kapp[...]

25. ST077 59 And 02 10.9 +39 02 5.6 16" And colored double star ST078 Iota Iota TRI 02 12.4 +30.3 5 3.8" T ri colored double star ST079 ∑ 231 Struve 231 02 12.8 -2.4 5.7 16.5" Cet double star ST080 ∑ 228 Struve 228 02 14.0 +47.5 6.6 1.1" And double star challenge ST081 ∑ 232 02 14.7 +30 24 8 7" T ri double star equal [...]

26. ST150 ∑ 559 04 33.5 +18 01 6.9 3" T au double star equal magnitude ST151 46 46 ERI 04 33.9 -6.7 5.7 4' Eri double star ST152 Aldebaran Alpha T AU 04 35.9 +16.5 0.9 30" T au colored double star ST153 Nu Nu ERI 04 36.3 -3.4 3.9 1 1° Eri star ST154 53 53 ERI 04 38.2 -14.3 3.9 * Eri star ST155 ∑ 572 04 38.5 +26 56 7.3 4" T [...]

ST223 ∑ 817 05 54.9 +07 02 8.8 19" Ori double star equal magnitude ST224 Betelgeuse Alpha Ori 05 55.2 +07 24 0.5 Stellar Ori star ST225 U U ORI 05 55.8 +20.2 5.3 * Ori variable star ST226 Theta 05 59.7 +37 13 2.6 3.5" Aur double star magnitude contrast ST227 Pi Pi AUR 05 59.9 +45.9 4.3 1° Aur red variable star ST228 ∆ 23 06 04.8 -48 [...]

ST296 19 ∑ 1062 07 22.9 +55 17 5.6 15" Lyn triple star ST297 Gamma Gamma CMI 07 28.2 +08.9 4.3 * Cmi star ST298 Sigma Sigma PUP 07 29.2 -43.3 3.3 22" Pup double star ST299 ∑ 1093 Struve 1093 07 30.3 +50.0 8.8 0.8" Lyn double star challenge ST300 n HN19, h269 07 34.3 -23 28 5.1 10" Pup double star equal magnitude ST301 Castor[...]

ST369 Lambda Lambda LEO 09 31.7 +23.0 4.3 * Leo star ST370 R R CAR 09 32.2 -62.8 3.8 * Car variable star ST371 ∑ 1369 Struve 1369 09 35.4 +40.0 6.5 25" Lyn double star ST372 Iota Iota HY A 09 39.9 -1.1 3.9 * Hya star ST373 Upsilon Upsilon CAR 09 47.1 -65.1 3.1 5" Car double star ST374 R 09 47.6 +11 26 4.4 Stellar Leo red variable star S[...]

ST442 Acrux Alpha CRU 12 26.6 -63.1 1 4.4" Cru double star ST443 3C273 3C 273 12 29.1 +02.0 12.8 * Vir asterism ST444 Algorab Delta CR V 12 29.9 -16.5 3 24" Crv double star ST445 Gamma Gamma CRU 12 31.2 -57.1 1.6 1 10" Cru double star ST446 ∑ 1649 Struve 1649 12 31.6 -11.1 8 15" Vir double star ST447 24 12 35.1 +18 23 5 20&quo[...]

ST515 54 H 97 14 46.0 -25 26 5.2 8" Hya double star ST516 Alpha Alpha APS 14 47.9 -79 3.8 10° Aps star ST517 ∑ 1883 14 48.9 +05 57 7.6 0.7" Vir double star challenge ST518 Mu 14 49.3 -14 09 5.4 2" Lib double star challenge ST519 39 14 49.7 +48 43 5.7 3" Boo double star ST520 58 58 HY A 14 50.3 -28 4.4 * Hya star ST521 Kochab [...]

ST588 Mu Mu SCO 16 52.3 -38 3 * Sco star ST589 20 20 DRA 16 56.4 +65.0 7.1 1.4" Dra double star challenge ST590 RR RR SCO 16 56.6 -30.6 5.1 * Sco variable star ST591 Kappa Kappa OPH 16 57.7 +09.4 3.2 75' Oph star ST592 Zeta Zeta ARA 16 58.6 -56 3.1 * Ara star ST593 Epsilon1 Epsilon1 ARA 16 59.6 -53.2 4.1 40' Ara star ST594 Mu 17 05.3[...]

ST661 R 18 47.5 -05 42 4.5 Stellar Sct variable star ST662 Beta 18 50.0 +33 24 3.5 47" Lyr double star magnitude contrast ST663 S S SCT 18 50.3 -7.9 6.8 14.3" Sct double star ST664 ∑ 2404 18 50.8 +10 59 6.9 4" Aql double star ST665 Omicron ∑ 2420 18 51.2 +59 22 4.9 35" Dra double star ST666 Delta2 Delta2 LYR 18 54.5 +36.9 4.[...]

ST733 RT RT SGR 20 17.7 -39.1 6 * Sgr variable star ST734 P 20 17.8 +38 02 3 Stellar Cyg variable star ST735 Alpha 20 18.0 -12 32 3.8 7" Cap quadruple star ST736 ∑ 2671 20 18.4 +55 23 6 4" Cyg double star ST737 U U CYG 20 19.6 +47.9 5.9 * Cyg variable star ST738 Beta Beta CAP 20 21.0 -14.8 3.4 3' Cap double star ST739 39 39 CYG 20 [...]

ST805 37 37 PEG 22 30.0 +04.4 5.8 1" Peg double star challenge ST806 Roe47 22 32.5 +39 46 5.8 43" Lac quadruple star ST807 8 22 35.9 +39 38 6.5 22" Lac triple star ST808 11 1 1 LAC 22 40.5 +44.3 4.5 * Lac star ST809 Beta Beta GRU 22 42.7 -46.9 2.1 * Gru star ST810 T au1 T au1 AQR 22 47.7 -14.1 5.7 23" Aqr double star ST81 1 ∑ [...]

36. NO RTHSTAR COMPUTERIZED STAR LOC A TO R SPECIFI C A TIONS Dimensions 3.5 X 4.7 X 1.8 W eight 10 oz including 9V battery Operating T emperature 10ºC à + 50ºC T elescope Mounting Altitude / Azimuth Display Dot Matrix LCD, 2x16 character Alphanumeric Display Backlight Blue-Green Electroluminescent, 5-brightness levels Display Resolution 1m righ[...]

37. No rth Star QUICK REFERENCE CARD PRESS ENTER PRESS ENTER SCROLLUP/DOWN PRESS ENTER for each digit or word SCROLLUP/DOWN PRESS ENTER for each digit or word PRESS ENTER SCROLLUP/DOWN PRESS ENTER for desired country SCROLLUP/DOWN PRESS ENTER for desired city PRESS ENTER (Make sure telescope is still level) Move telescope until display reads: By lo[...]

quick reference card SCROLLUP or SCROLLDOWN until the display reads: PRESS ENTER SCROLLUP or SCROLLDOWN Choose option PRESS ENTER PRESS ENTER PRESS BACK button until you get back to the main menu: SCROLLUP/ DOWN PRESS ENTER The TELESCOPE mode gives you dynamic real-time information on your telescope's current position in terms of astronomical [...]

w arranty / repair 39. TELESCOPE LIFETIME LIMITED WARRANTY Y our Bush nel l ® tel escope is warr ante d to b e fre e of de f e c ts in mat eria ls and work mansh ip fo r t he li f e time of the origi nal own er . The Lif eti m e Li mited W arran ty is an ex press ion o f our confi denc e i n the m ater ials and mec hani cal wor kmans hip of our pr[...]