Meade-instruments LX90-LNT Manuale Utente Pagina 15
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15
Aligning SmartFinder
In order f
or the SmartFinder to be useful, it must first be aligned with the main telescope, so
that both the SmartFinder and the main telescope are pointing at
precisely the same location.
To align the SmartFinder:
1. Point the main telescope at some well-defined distant (perhaps a mile away) land object,
such as a telephone pole or sign. Center the object, as precisely as
possible, in the SP 26mm eyepiece's field of view. Tighten the vertical and
horizontal locks (
6 and 9, Fig. 1) so that the tube cannot move and the object remains
centered.
2. While looking through the SmartFinder (1, Fig. 6), turn the top or side alignment screws (2
and 3,
Fig. 7
), until the red dot of the Smar
tFinder points at precisely the same position as
the view through the eyepiece of the main telescope.
The SmartFinder is now aligned to the main telescope. Unless the alignment screws are
disturbed or the LNT Module is moved out of place, the SmartFinder should remain aligned
indefinitely.
Fig. 6b: Turn the top (2) or side
(3) SmartFinder.
Fig. 6: SmartFinder Location.
B
A
Aligning the Viewfinder
Like the SmartFinder, the viewfinder helps you locate objects and must also be aligned to the
main telescope. To align the viewfinder, perform steps 1 through 5 during the daytime; perform
step 6 at night.
1. Slide the track on the bottom of the viewfinder into the slot in the viewfinder mounting
assembly. See
Fig. 7a. To secure the viewfinder to the mounting assembly, tighten the two
thumbscrews (
Fig. 7a) to a firm feel only.
2. If you have not already done so, insert the Super Plössl 26mm eyepiece into the diagonal
prism.
3. Unlock the R.A. (
9, Fig. 1) and Dec (7, Fig. 1) locks so that the telescope moves freely on
both axes.
4. Point the telescope at some well-defined and stationary land object at least 200 yards dis-
tant, such as the top of a telephone pole or street sign.
Center the object in the telescope
eyepiece. Re-tighten the R.A. and Dec locks.
5. Look through the viewfinder eyepiece (
Fig. 7b) and loosen or tighten, as appropriate, one
or more of the vie
wfinder alignment screws (
Fig.
7b
) until the vie
wfinder crosshairs are pre-
cisely centered on the object you previously centered in the telescope eyepiece.
6. Check this alignment on a celestial object, such as the Moon or a bright star, and make any
necessary refinements, using the method outlined in steps 3 and 4.
C
Fig.
7a:
Vie
wfinder Assemb
ly.
Alignment
Screws
Mounting
Slot
Viewfinder
Eyepiece
Tra ck
Fig.
7b:
Vie
wfinder Assemb
ly.
Thumbscrews
- Instruction Manual 1
- CONTENTS 3
- QUICK-START GUIDE 4
- HBX Port 5
- AutoStar Coil 5
- Cable Port 5
- Side View 6
- Rear View 6
- Computer Control Panel 6
- To Attach the Handbox Holder: 8
- AUTOSTAR FEATURES 9
- GETTING STARTED 12
- Battery 13
- Compartment 13
- Choosing an Eyepiece 14
- Using SmartFinder 14
- Aligning SmartFinder 15
- Aligning the Viewfinder 15
- OBSERVING 16
- Slew Speeds 17
- Observe the Moon 17
- Astronomical Observing 18
- Automatic Alignment 19
- Go To Saturn 20
- Using the Guided Tour 20
- BASIC AUTOSTAR OPERATION 21
- Entering Data into AutoStar 22
- Navigating AutoStar 22
- LX90 TIPS 22
- AUTOSTAR’S MENUS 23
- MENUS AND MENU OPTIONS 24
- Event Menu 25
- Glossary Menu 25
- Utilities Menu 25
- Observing Considerations 26
- Setup Menu 27
- Table 1: Time Zone Shift 28
- ADVANCED AUTOSTAR FEATURES 30
- 31
- Landmarks 36
- Identify 37
- Advanced Alt/Az Alignment 37
- PHOTOGRAPHY WITH THE LX90 39
- Fig. 17: The Lunar 40
- Planetary Imager 40
- Fig. 16: Meade Deep 40
- Sky Imager 40
- OPTIONAL ACCESSORIES 41
- MAINTENANCE 43
- LX90 Specifications 46
- AutoStar Specifications 46
- AutoStar Dimensions 46
- Polar Alignment 47
- Celestial Coordinates 47
- Little Dipper 48
- Cassiopeia 48
- EQUATORIAL WEDGE 49
- Precise Polar Alignment 50
- Star Charts 51
- APPENDIX B: HELPFUL CHARTS 52
- Further Study 53
- MEADE LIMITED WARRANTY 60
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