Meade-instruments DSX Series Manual de usuario Pagina 39
- Pagina / 48
- Tabla de contenidos
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
39
SPECIFICATIONS
DSX-90AT
Optical design . . . . . . . . . . . . . . . . . . . Maksutov-Cassegrain
Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90mm (3.5”)
Focal length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1250mm
Focal ratio (photographic speed). . . . . . . . . . . . . . . . . . f/13.8
Near focus (approx) . . . . . . . . . . . . . . . . . . . . . 11.5 ft (3.5m)
Resolving power. . . . . . . . . . . . . . . . . . . . . . . . . 1.3 arc secs
Super multi-coatings (EMC) . . . . . . . . . . . . . . . . . . . standard
Limiting visual stellar magnitude (approx.). . . . . . . . . . . . 11.7
Image scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.16°/inch
Maximum practical visual power . . . . . . . . . . . . . . . . . . 325X
Optical tube dimensions
(dia. x length) . . . . . . . . . . 10.4cm x 27.9cm (4.1” x 11”)
Eyepiece. . . . . . . . . . . . . . . . . . . . . . . . . Super Plössl 26mm
Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 x 21mm
Secondary mirror obstruction (dia.; %) . . 27.9mm (1.1”); 9.6%
Telescope mounting. . . . . . . . . . Single-arm, motorized Alt-Az
Battery (user-supplied) . . . . . . . . . . . . . . . . . . . . . . . . 8 x AA
DSX-125AT
Optical design . . . . . . . . . . . . . . . . . . . Maksutov-Cassegrain
Diameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125mm (4.9”)
Focal length . . . . . . . . . . . . . . . . . . . . . . . . . 1900mm (74.8”)
Focal ratio (photographic speed) . . . . . . . . . . . . . . . . . . . f/15
Near focus (approx). . . . . . . . . . . . . . . . . . . . . . . 4.6m (15 ft)
Resolving power. . . . . . . . . . . . . . . . . . . . . . . . . 0.9 arc secs
Super multi-coatings (EMC) . . . . . . . . . . . . . . . . . . . standard
Limiting visual stellar magnitude (approx.). . . . . . . . . . . . 12.5
Image scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.76°/inch
Maximum practical visual power . . . . . . . . . . . . . . . . . . 500X
Optical tube dimensions
(dia. x length) . . . . . . . . . 14.6cm x 36cm (5.75” x 14.2”)
Eyepiece. . . . . . . . . . . . . . . . . . . . . . . . . Super Plössl 26mm
Viewfinder. . . . . . . . . . . . . . . . . . . . . . . 8 x 25mm right-angle
Secondary mirror obstruction (dia.; %) . . 39.4mm (1.6”); 9.6%
Telescope mounting. . . . . . . . . . Single-arm, motorized Alt-Az
Battery (user-supplied) . . . . . . . . . . . . . . . . . . . . . . . . 8 x AA
Autostar Specifications
Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . 68HC11, 8MHz
Flash Memory . . . . . . . . . . . . . . . . . . . . . . . 1MB, reloadable
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . 20 key alphanumeric
Display . . . . . . . . . . . . . . . . . . . . . . 2 line, 16 character LCD
Backlight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Red LED
Utility Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes
RS-232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes
Coil Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24"
Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30,223 objects
Autostar Dimensions
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.56" (16.6cm)
Width (LCD end) . . . . . . . . . . . . . . . . . . . . . . . . 3.19" (80cm)
Width (Connector end). . . . . . . . . . . . . . . . . . . . 2.25" (57cm)
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.81" (21cm)
Autostar net weight . . . . . . . . . . . . . . . . . . . 1.12 lbs (0.51kg)
- Instruction Manual 1
- Meade Instruments Corporation 1
- CONTENTS 3
- QUICK-START GUIDE 4
- TELESCOPE FEATURES 7
- AUTOSTAR FEATURES 9
- DSX TIPS 10
- Join an Astronomy Club 10
- Attend a Star Party 10
- GETTING STARTED 11
- The Viewfinder 12
- Choosing an Eyepiece 13
- Too Much Power? 14
- OBSERVING 15
- Slew Speeds 16
- Observe the Moon 16
- Astronomical Observing 16
- Initializing Autostar 17
- Easy (Two-Star) Align 18
- Which One’s the 19
- Alignment Star? 19
- Two-Star Alt/Az Alignment 20
- One-Star Alt/Az Alignment 20
- Go To Saturn 20
- Take a Guided Tour 20
- BASIC AUTOSTAR OPERATION 21
- Entering data into Autostar 22
- Navigating Autostar 22
- MENUS AND MENU OPTIONS 23
- Event Menu 24
- Glossary Menu 25
- Utilities Menu 25
- Observing Considerations 25
- Setup Menu 26
- Surf the Web 27
- Table 1: Time Zone Shift 28
- ADVANCED AUTOSTAR FEATURES 30
- Landmarks 34
- Identify 35
- Look into the Future 36
- OPTIONAL ACCESSORIES 37
- CARING FOR YOUR TELESCOPE 38
- SPECIFICATIONS 39
- APPENDIX A 40
- APPENDIX B 41
- APPENDIX C 42
- APPENDIX D 43
- BASIC ASTRONOMY 44
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