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Explore Scientific Explore FirstLight 10" f/5 Dobsonian, Instruction Manual

The Explore Scientific Explore FirstLight 10" f/5 Dobsonian telescope is a powerful and easy-to-use instrument for beginner astronomers. Discover the beauty of the night sky with this reliable telescope. Make sure to download the free Instruction Manual from manualshive.com for easy setup and operation guidance.

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Parts Overview

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Summary of Contents for Explore FirstLight 10" f/5 Dobsonian

Page 1: ...cope models can appear daunting they can be broken down and transported easily even in small cars and reassembled within minutes The FirstLight series includes two Dobsonian models 8 and 10 Each comes...

Page 2: ...n optics after you have removed as many particles as possible with forced air or a photographic grade camel hair brush DO NOT use optical lens cleaning tissues as many contain fiberglass particles tha...

Page 3: ...3 A D C F E B G H I J K 10x L 10x M 5x N 1x O 1x P 2x Q 2x R Fig 1 3x S 4x T U Package Contents I...

Page 4: ...4 Parts Overview II Fig 2 Inset A Inset B 1 3 5 4 2 6 7 8 9 10 11 18 19 20 20 20 21 21 21 12 13 14 16 16 14 a 15 17...

Page 5: ...dge 9 Base side parts 2x 10 Base front part 11 Round base plate 2x 12 Rubber feet 3x Eyepiece holder Inset A 13 Focusing drive 14 Friction screws Focus lock and grinding pressure adjustment 14a Fixing...

Page 6: ...bottom plates Fig 1 A B 2 Screw four threaded bolts Fig 1 L into the outer drill holes of bottom plate on top 3 Put both bottom plates on top of each other 4 Bolt both bottom plates together with the...

Page 7: ...he remaining threaded bolts Fig 1 L of the bridge Fig 1 E and the front part Fig 1 F 2 Tighten the quick fasteners with a Phillips screwdriver 3 Use two woodscrews Fig 1 N to attach the accessory tray...

Page 8: ...tion of the front part Fig 11 10 when attaching it 2 Hold the OTA with one hand until it is balanced correctly If neccessary move the OTA a little to another position within the brackets Fig 11 5 to e...

Page 9: ...ng a spacer sleeve it is also no longer necessary to turn out the eyepiece extension until it stops It also increases mechanical stability 1 Unscrew the eyepiece holder Fig 12 2a and remove it from th...

Page 10: ...tice at first but you ll soon get the hang of it Be sure the mount is placed on a relatively level surface to allow proper operation Each of the three feet should be in firm contact with the surface a...

Page 11: ...accidentally point your telescope at or near the Sun see Sun Warning in this Manual After you have set up your telescope and attached the red dot viewfinder find an easy stationary target that is at...

Page 12: ...net in our solar system and is the fourth brightest object in the night sky The equatorial diameter of this gas giant is 11 times bigger than that of the Earth Through the telescope you should be able...

Page 13: ...new stars are born The premier nebula on the northern hemisphere is the Great Orion Nebula Orion Nebula Right ascension 05 35 4 hours minutes Declination 05 27 degrees minutes Distance Approximately 1...

Page 14: ...jectsthatareclosetothehorizonareseverelyinfluencedbyairturbulence and absorbance It is much better to time your observations in a way that those objects are close to the meridian so that they are at t...

Page 15: ...focuser tube and the observer s eye appear centered relative to each other However with the short focal ratio primary mirror of this Dobsonian telescope correct collimation requires that the diagonal...

Page 16: ...main telescope s field of view 5 Bring the star s image slowly in and out of focus until you see several disks surrounding the star s center If steps 1 through 3 were done correctly you will see conc...

Page 17: ...ter 254mm 10 Secondary mirror obstruction 24 Focal length 1270mm Focal ratio f 5 Theoretical resolving power 0 59 arc seconds Limiting magnitudes 14 mag Focuser 2 5 Hex focuser with 2 and 1 25 adapter...

Page 18: ...when possible Contact your local waste disposal service or environmental authority for information on the proper disposal Please take the current legal regulations into account when disposing of your...

Page 19: ...19...

Page 20: ...2018 Explore Scientific LLC 1010 S 48th Street Springdale AR 72762 explorescientificusa com exploreone com 866 252 3811 All rights reserved Made in China Rev 02 19 2018...

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