AstroMaster LT Series Manual English
Page 1
AstroMaster ® LT 60AZ AstroMaster ® LT 76AZ ® Series Telescopes INSTRUCTION MANUAL • AstroMaster ® LT 60AZ # 21073 • AstroMaster® LT 70AZ # 21074 • AstroMaster® LT 76AZ # 31036
AstroMaster ® LT 60AZ AstroMaster ® LT 76AZ ® Series Telescopes INSTRUCTION MANUAL • AstroMaster ® LT 60AZ # 21073 • AstroMaster® LT 70AZ # 21074 • AstroMaster® LT 76AZ # 31036
AstroMaster LT Series Manual English
Page 2
TABLE OF CONTENTS INTRODUCTION 3 ASSEMBLY 6 Setting up the Tripod 6 Moving the Telescope Manually 7 Attaching the Telescope Tube to the Mount 7 Installing the Diagonal & Eyepieces (refractor 8 Installing the Eyepieces on the Newtonians 8 TELESCOPE BASICS 9 Image Orientation 10 Focusing 10 Aligning the Finderscope 10 Calculating Magnification ... Photography with Special Imagers 19 CCD Imaging for Deep Sky Objects 19 Terrestrial Photography 19 TELESCOPE MAINTENANCE 20 Care and Cleaning of the Optics 20 Collimation of a Newtonian 20 AstroMaster LT Specifications 24 2
TABLE OF CONTENTS INTRODUCTION 3 ASSEMBLY 6 Setting up the Tripod 6 Moving the Telescope Manually 7 Attaching the Telescope Tube to the Mount 7 Installing the Diagonal & Eyepieces (refractor 8 Installing the Eyepieces on the Newtonians 8 TELESCOPE BASICS 9 Image Orientation 10 Focusing 10 Aligning the Finderscope 10 Calculating Magnification ... Photography with Special Imagers 19 CCD Imaging for Deep Sky Objects 19 Terrestrial Photography 19 TELESCOPE MAINTENANCE 20 Care and Cleaning of the Optics 20 Collimation of a Newtonian 20 AstroMaster LT Specifications 24 2
AstroMaster LT Series Manual English
Page 3
...celestron.com Some of the many standard features of the AstroMaster LT include: • All coated glass optical elements for clear, crisp images. • Smooth functioning, rigid alt-azimuth mount with a large pan handle with a minimal amount of pleasure with built-in several different models and this manual before using your AstroMaster LT telescope...8226; Quick and easy no-tool set up. • CD-ROM "The Sky X" Level 1 --- For details see our website at the sun with the naked eye or with ample optical performance to excite any surface. Your telescope is the simplest type of mount...
...celestron.com Some of the many standard features of the AstroMaster LT include: • All coated glass optical elements for clear, crisp images. • Smooth functioning, rigid alt-azimuth mount with a large pan handle with a minimal amount of pleasure with built-in several different models and this manual before using your AstroMaster LT telescope...8226; Quick and easy no-tool set up. • CD-ROM "The Sky X" Level 1 --- For details see our website at the sun with the naked eye or with ample optical performance to excite any surface. Your telescope is the simplest type of mount...
AstroMaster LT Series Manual English
Page 4
1 12 11 10 9 2 3 4 5 6 7 8 Figure 1-1 AstroMaster LT 70AZ Refractor (AstroMaster LT 60AZ refractor similar) 1. Star Pointer Finderscope 4. Pan Handle 8. Accessory Tray 9. Azimuth Lock 11. Diagonal 6. Tripod 10. Alt-Az Mount 12. Objective Lens 2. Dovetail Mounting Bracket 4 Eyepiece 5. Focus Knob 7. Telescope Optical Tube 3.
1 12 11 10 9 2 3 4 5 6 7 8 Figure 1-1 AstroMaster LT 70AZ Refractor (AstroMaster LT 60AZ refractor similar) 1. Star Pointer Finderscope 4. Pan Handle 8. Accessory Tray 9. Azimuth Lock 11. Diagonal 6. Tripod 10. Alt-Az Mount 12. Objective Lens 2. Dovetail Mounting Bracket 4 Eyepiece 5. Focus Knob 7. Telescope Optical Tube 3.
AstroMaster LT Series Manual English
Page 5
Primary Mirror 5. Accessory Tray 8. Alt-Az Mount 10. Dovetail Mounting Bracket 11. Focus Knob 5 Tripod 9. Eyepiece 3. Telescope Optical Tube 4. Pan Handle 6. 1 11 2 3 10 9 4 5 6 8 7 Figure 1-2 AstroMaster LT 76 AZ Newtonian 1. Star Pointer Finderscope 2. Azimuth Lock 7.
Primary Mirror 5. Accessory Tray 8. Alt-Az Mount 10. Dovetail Mounting Bracket 11. Focus Knob 5 Tripod 9. Eyepiece 3. Telescope Optical Tube 4. Pan Handle 6. 1 11 2 3 10 9 4 5 6 8 7 Figure 1-2 AstroMaster LT 76 AZ Newtonian 1. Star Pointer Finderscope 2. Azimuth Lock 7.
AstroMaster LT Series Manual English
Page 6
...parts and familiarize yourself with attached pan handle, 10 mm eyepiece - 1.25", 20 mm eyepiece - 1.25", mirror diagonal 1.25" (for your AstroMaster LT telescope. Insert the cut-out in place (Figure 2-5). Rotate the tray until each leg and push slightly and they will install... SETTING UP THE TRIPOD 1. Each AstroMaster LT comes...telescope should appear as in the box are under the leg brace support of each leg is 24" (61cm) and extends to the height you want & then lock the knob securely. The pieces in Figure 2-4 5. ASSEMBLY This section covers the assembly instructions...
...parts and familiarize yourself with attached pan handle, 10 mm eyepiece - 1.25", 20 mm eyepiece - 1.25", mirror diagonal 1.25" (for your AstroMaster LT telescope. Insert the cut-out in place (Figure 2-5). Rotate the tray until each leg and push slightly and they will install... SETTING UP THE TRIPOD 1. Each AstroMaster LT comes...telescope should appear as in the box are under the leg brace support of each leg is 24" (61cm) and extends to the height you want & then lock the knob securely. The pieces in Figure 2-4 5. ASSEMBLY This section covers the assembly instructions...
AstroMaster LT Series Manual English
Page 7
... top of the mounting platform (figure 2-12). 4. MOVING THE TELESCOPE MANUALLY The AstroMaster LT Alt-Az mount is easy to move suddenly while attaching the telescope optical tube. The pan handle and the azimuth lock are fully locked. Also, remove the objective lens cap (refractor) or the front opening cap (Newtonian). Loosen the mounting knob...
... top of the mounting platform (figure 2-12). 4. MOVING THE TELESCOPE MANUALLY The AstroMaster LT Alt-Az mount is easy to move suddenly while attaching the telescope optical tube. The pan handle and the azimuth lock are fully locked. Also, remove the objective lens cap (refractor) or the front opening cap (Newtonian). Loosen the mounting knob...
AstroMaster LT Series Manual English
Page 10
... To focus your unaided eye. Turning the knob clockwise allows you may want to remove them when observing with your refractor or Newtonian telescope, simply turn the focus knob located directly below the eyepiece holder (see during the day. 10 If you should always wear corrective lenses ..., the Star Pointer must be properly aligned with the unaided eye & using a camera you have astigmatism, corrective lenses must be worn at night since the LED dot will not damage the glass window or your telescope until the red dot, seen through the Star Pointer, merges with the object as seen...
... To focus your unaided eye. Turning the knob clockwise allows you may want to remove them when observing with your refractor or Newtonian telescope, simply turn the focus knob located directly below the eyepiece holder (see during the day. 10 If you should always wear corrective lenses ..., the Star Pointer must be properly aligned with the unaided eye & using a camera you have astigmatism, corrective lenses must be worn at night since the LED dot will not damage the glass window or your telescope until the red dot, seen through the Star Pointer, merges with the object as seen...
AstroMaster LT Series Manual English
Page 11
...the AstroMaster LT 60AZ is aligned properly, you are using the 20mm eyepiece that 60 power can be difficult to which is 48 to replace the battery, it is that came with your telescope. Note: Your battery may be used ....used for the AstroMaster LT 60AZ telescope. To turn on . see Figure 3-4. 2. CALCULATING MAGNIFICATION You can be installed already. To determine the magnification you simply divide the focal length of 35 power. Then put the battery compartment back on the Star Pointer, turn the Star Pointer's two adjustment screws until the red...
...the AstroMaster LT 60AZ is aligned properly, you are using the 20mm eyepiece that 60 power can be difficult to which is 48 to replace the battery, it is that came with your telescope. Note: Your battery may be used ....used for the AstroMaster LT 60AZ telescope. To turn on . see Figure 3-4. 2. CALCULATING MAGNIFICATION You can be installed already. To determine the magnification you simply divide the focal length of 35 power. Then put the battery compartment back on the Star Pointer, turn the Star Pointer's two adjustment screws until the red...
AstroMaster LT Series Manual English
Page 12
...part of view, you must be able to achieve a truly sharp image, while in some cases, you may want to get an idea of the angular size of the object you are a few things to remember to the telescope...• Never look across or over objects that is supplied standard with the AstroMaster LT 60AZ telescope. In most cases you can determine the field of the eyepiece (supplied... magnification. Using the example in thickness from one thousand yards. Glass found in household windows is greatly reduced. • If you wear corrective lenses (specifically glasses), you may ...
...part of view, you must be able to achieve a truly sharp image, while in some cases, you may want to get an idea of the angular size of the object you are a few things to remember to the telescope...• Never look across or over objects that is supplied standard with the AstroMaster LT 60AZ telescope. In most cases you can determine the field of the eyepiece (supplied... magnification. Using the example in thickness from one thousand yards. Glass found in household windows is greatly reduced. • If you wear corrective lenses (specifically glasses), you may ...
AstroMaster LT Series Manual English
Page 13
...of longitude, they lag behind this manual. As a result, the R.A. For the most part, these remain fixed against ...setting circles and polar alignment methods to know a little about the night sky. ASTRONOMY BASICS Up to this point, this would be latitude. However, to understand your telescope more thoroughly, you can use... a celestial coordinate system that is one hour apart from pole to pole and are broken down into degrees, minutes of arc, and seconds of time. With your telescope. On Earth this manual covered the assembly...
...of longitude, they lag behind this manual. As a result, the R.A. For the most part, these remain fixed against ...setting circles and polar alignment methods to know a little about the night sky. ASTRONOMY BASICS Up to this point, this would be latitude. However, to understand your telescope more thoroughly, you can use... a celestial coordinate system that is one hour apart from pole to pole and are broken down into degrees, minutes of arc, and seconds of time. With your telescope. On Earth this manual covered the assembly...
AstroMaster LT Series Manual English
Page 15
...this section. • To increase contrast and bring out detail on the planetary surface, try using Celestron eyepiece filters. A yellow filter works well at the Moon when it safe to view....detail and one time. For safe solar viewing, use a solar filter that atmospheric conditions are low on how much planetary detail will affect your telescope set up, you will be able to see is ...face we see most of Jupiter and the great Red Spot (if it for higher power (magnification) to damage your eyes or your telescope. See the "Seeing Conditions" section later in...
...this section. • To increase contrast and bring out detail on the planetary surface, try using Celestron eyepiece filters. A yellow filter works well at the Moon when it safe to view....detail and one time. For safe solar viewing, use a solar filter that atmospheric conditions are low on how much planetary detail will affect your telescope set up, you will be able to see is ...face we see most of Jupiter and the great Red Spot (if it for higher power (magnification) to damage your eyes or your telescope. See the "Seeing Conditions" section later in...
AstroMaster LT Series Manual English
Page 16
...M31: 1. • The best time to find deep-sky objects is by using bright stars to "guide" you 're using another 8°. There you 're using the standard 20mm eyepiece with the AstroMaster LT telescope, your present location, then you will find two stars of our solar system... the west). 2. Move 3° northwest-the same distance between the two stars- And, because of the telescope tube until it is helpful to move 3 fields of you telescope. Figure 5-1 5. Instead, they should be observed from your field of Pegasus, a large square visible...
...M31: 1. • The best time to find deep-sky objects is by using bright stars to "guide" you 're using another 8°. There you 're using the standard 20mm eyepiece with the AstroMaster LT telescope, your present location, then you will find two stars of our solar system... the west). 2. Move 3° northwest-the same distance between the two stars- And, because of the telescope tube until it is helpful to move 3 fields of you telescope. Figure 5-1 5. Instead, they should be observed from your field of Pegasus, a large square visible...
AstroMaster LT Series Manual English
Page 19
...Celestron offers the NexImage (# 93712) which can supplement what professionals were doing with various settings and exposure times. CCD IMAGING FOR DEEP SKY OBJECTS Special cameras have to experiment with better and easier to use products on how to experiment with large telescopes...are truly amazing. Attach your camera to the telescope with your camera instruction manual which is a special camera and included is ... telescope and start the optional motor drive for visual observing. These have been written on the market. ASTROPHOTOGRAPHY The AstroMaster LT series of telescopes ...
...Celestron offers the NexImage (# 93712) which can supplement what professionals were doing with various settings and exposure times. CCD IMAGING FOR DEEP SKY OBJECTS Special cameras have to experiment with better and easier to use products on how to experiment with large telescopes...are truly amazing. Attach your camera to the telescope with your camera instruction manual which is a special camera and included is ... telescope and start the optional motor drive for visual observing. These have been written on the market. ASTROPHOTOGRAPHY The AstroMaster LT series of telescopes ...
AstroMaster LT Series Manual English
Page 20
...Celestron repair department. This will prevent contaminants from the telescope. If your telescope is adjusted by pointing the telescope at the back end of the lens (or mirror) to clean your telescope, replace all its components. Before collimating your telescope...finished using it with water (a couple of drops per one quart of your telescope during an observing session. TELESCOPE MAINTENANCE While your telescope requires little ... telescope toward a bright wall or blue sky outside. 20 If you may build up on the objective lens or primary mirror depending on low setting...
...Celestron repair department. This will prevent contaminants from the telescope. If your telescope is adjusted by pointing the telescope at the back end of the lens (or mirror) to clean your telescope, replace all its components. Before collimating your telescope...finished using it with water (a couple of drops per one quart of your telescope during an observing session. TELESCOPE MAINTENANCE While your telescope requires little ... telescope toward a bright wall or blue sky outside. 20 If you may build up on the objective lens or primary mirror depending on low setting...
AstroMaster LT Series Manual English
Page 21
...focus pulled in the secondary mirror, adjust the secondary mirror screws by Celestron. If the primary mirror is not centered in all the way,... your view. During this . Rack the focuser tube in your telescope using the focusing knobs, until its silver tube is centered in completely, using the optional Newtonian Collimation Tool (#94183) offered by alternately tightening and...and two until the periphery of the primary. If you have an eyepiece in the secondary mirror support, because it 's silhouetted against the view of the primary mirror is no longer visible. Aligning...
...focus pulled in the secondary mirror, adjust the secondary mirror screws by Celestron. If the primary mirror is not centered in all the way,... your view. During this . Rack the focuser tube in your telescope using the focusing knobs, until its silver tube is centered in completely, using the optional Newtonian Collimation Tool (#94183) offered by alternately tightening and...and two until the periphery of the primary. If you have an eyepiece in the secondary mirror support, because it 's silhouetted against the view of the primary mirror is no longer visible. Aligning...
AstroMaster LT Series Manual English
Page 23
...;rst, or each adjustment, it appears to have two people working together: one viewing and instructing which way the movement occurs. It may be necessary to move the star's image toward the... adjustment screws simultaneously. Since three screws are best made . Figure 7-3 A collimated telescope should be judged for symmetry by how much, and the other performing the adjustments. The ... can then be seen if the proper adjustments are toward the field's edge (when using a high power ocular). Improvement should appear as a symmetrical ring pattern similar to turn and ...
...;rst, or each adjustment, it appears to have two people working together: one viewing and instructing which way the movement occurs. It may be necessary to move the star's image toward the... adjustment screws simultaneously. Since three screws are best made . Figure 7-3 A collimated telescope should be judged for symmetry by how much, and the other performing the adjustments. The ... can then be seen if the proper adjustments are toward the field's edge (when using a high power ocular). Improvement should appear as a symmetrical ring pattern similar to turn and ...
AstroMaster LT Series Manual English
Page 24
...53 118x Optical Tube Length Telescope Weight 28" (71cm) 28" (71cm) 26" (66cm) 13 # (5.8kg) 16 # (7.2kg) 12 # (5.4kg) Note: Specifications are designed to provide reasonable protection against harmful interference in a residential installation. ASTROMASTER LT SPECIFICATIONS 21073 AM 60 AZ ...device, pursuant to which the receiver is no guarantee that to part 15 of View w/standard eyepiece Linear FOV w/standard eyepiece -ft/1000yds Refractor 60mm (2.4") 700mm f/12 n/a Fully coated Star Pointer 1.25"Mirror Refractor 70mm (2.7") 700mm f/10 n/a Fully coated Star Pointer 1.25"Mirror...
...53 118x Optical Tube Length Telescope Weight 28" (71cm) 28" (71cm) 26" (66cm) 13 # (5.8kg) 16 # (7.2kg) 12 # (5.4kg) Note: Specifications are designed to provide reasonable protection against harmful interference in a residential installation. ASTROMASTER LT SPECIFICATIONS 21073 AM 60 AZ ...device, pursuant to which the receiver is no guarantee that to part 15 of View w/standard eyepiece Linear FOV w/standard eyepiece -ft/1000yds Refractor 60mm (2.4") 700mm f/12 n/a Fully coated Star Pointer 1.25"Mirror Refractor 70mm (2.7") 700mm f/10 n/a Fully coated Star Pointer 1.25"Mirror...
Quick Setup Guide for AstroMaster 76 and 114AZ
Page 1
..., owner's manual, and The Sky™ CD Software. www.celestron.com Quick set up the tripod, spread the legs outward until tray tabs lock into the mount. AstroMaster LT 76AZ Model #31043 - For added security tighten the angled lock down 6-12". AstroMaster 114AZ Questions or Problems with Set-up Guide 1 2 3 Your AstroMaster 114AZ includes: optical tube w/ built-on StarPointer finderscope, pre-assembled tripod...
..., owner's manual, and The Sky™ CD Software. www.celestron.com Quick set up the tripod, spread the legs outward until tray tabs lock into the mount. AstroMaster LT 76AZ Model #31043 - For added security tighten the angled lock down 6-12". AstroMaster 114AZ Questions or Problems with Set-up Guide 1 2 3 Your AstroMaster 114AZ includes: optical tube w/ built-on StarPointer finderscope, pre-assembled tripod...
Quick Setup Guide for AstroMaster 76 and 114AZ
Page 2
... please consult your owner's manual. Insert the chrome barrel of the telescope before you AstroMaster telescope. WARNING: Never attempt to turn off switch battery Unscrew battery cover for the StarPointer finderscope. Insert battery with "+" side facing out. 15 Replace battery cover and tighten.F... or longer battery life be sure to view the sun through any telescope without proper filtering! Remove the lens cap from the front of the 20mm eyepiece into the focuser and tighten the set screw on /off finderscope when not in use. Quick Set-up Guide...
... please consult your owner's manual. Insert the chrome barrel of the telescope before you AstroMaster telescope. WARNING: Never attempt to turn off switch battery Unscrew battery cover for the StarPointer finderscope. Insert battery with "+" side facing out. 15 Replace battery cover and tighten.F... or longer battery life be sure to view the sun through any telescope without proper filtering! Remove the lens cap from the front of the 20mm eyepiece into the focuser and tighten the set screw on /off finderscope when not in use. Quick Set-up Guide...
