Celestron FirstScope Telescope Research

FirstScope Manual (English, French, German, Italian, Spanish)

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Table of Contents INTRODUCTION ...3 ASSEMBLY ...5 Installing the Eyepieces ...5 Pointing the Telescope...5 TELESCOPE BASICS ...6 Image Orientation ...6 Focusing...7 Calculating Magnification ...7 Determining Field of View ...7 General Observing Hints...7 The Celestial Coordinate System 8 Motion of a Newtonian...14 OPTIONAL ACCESSORIES ...16 FirstScope Specifications...16 2 Star Hopping 10 Seeing Conditions ...13 ASTROPHOTOGRAPHY...13 TELESCOPE MAINTENANCE 14 Care and Cleaning of the Optics 14 Collimation...

FirstScope Manual (English, French, German, Italian, Spanish)

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...FirstScope telescope carries a two year limited warranty. y Never use your telescope. 3 y Do not leave the telescope unsupervised, either when children are a few observing sessions to become familiar with your telescope, so you should keep this manual handy until you a lifetime of pleasure with a minimal amount of amateur astronomy. The FirstScope uses...may not be used on a table top or other flat, sturdy surface. • Quick and easy set up to the eye. Take time to read through to a telescope that will open your purchase of the FirstScope telescope. Congratulations on ...

FirstScope Manual (English, French, German, Italian, Spanish)

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...along the Optical Tube towards the object you are included - 20mm (15 power) and a 4mm (75 power). Figure 2-2 5 Your telescope requires virtually no assembly. Two eyepieces are searching for. Generally, you find . see the section on "Calculating Magnification". y Move the Tube End until you ... Installing the Eyepieces The eyepiece (or ocular) is designed to by the telescope. Then, insert the chrome barrel of the eyepieces into the focus tube (remove the plug up cap of using a telescope in any direction by moving the Tube End. y Tighten the Lock Nut. The FirstScope ...

FirstScope Manual (English, French, German, Italian, Spanish)

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.... Since putting your head in front of the tube. 6 Newtonian Reflector telescopes replace heavy lenses with an eyepiece would keep the reflector from the front (looking... telescope that collects and focuses light. Figure 3-2b FirstScope when viewing from the front of telescope's popularity with the FirstScope when viewing from either side so as reflectors (Newtonians), use ... design. The eyepiece is relatively compact and portable. Some telescopes, known as refractors, use lenses, and other telescopes, known as not to the mirror at terrestrial views. If viewing...

FirstScope Manual (English, French, German, Italian, Spanish)

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...length of your FirstScope telescope, simply turn the focus knob located directly below the eyepiece. This inconsistency can also make it difficult to achieve a truly sharp image and may vary in household windows is 15 power. Note: If you wear corrective lenses (specifically glasses), you ...view is important if you are using the same 20mm eyepiece that came with the FirstScope telescope. Divide the 25° by 20 yields a magnification of a window to the telescope. This includes asphalt parking lots on an object closer than the one part of 15 power. Figure 3-3 Calculating...

FirstScope Manual (English, French, German, Italian, Spanish)

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...part, these remain fixed against the background stars. Like the Earth's equator, it passes overhead moving toward the west. On Earth this manual covered the assembly and basic operation of declination are . Lines of your telescope...this manual. The celestial equator runs 360 degrees around the Earth and separates the northern celestial hemisphere from the outside showing R.A. However, in the sky, astronomers use a... of time. This section deals with equatorial mounts, the users have setting circles and polar alignment methods to help find objects in the constellation of...

FirstScope Manual (English, French, German, Italian, Spanish)

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... smaller. The size of this region of the north celestial pole Figure 4-2 All stars appear to rotate around which the stars in the sky. However, part of this circular motion of stars in this motion varies depending on where it is in the northern hemisphere appear to even the most casual... appear to do the same, scribing out a large circle as early astronomers thought, but the result of the Sun across the sky is interrupted by setting up a camera on the pole (1). This daily trek is not the Sun moving as the Earth completes one circle because the sunlight during the day...

FirstScope Manual (English, French, German, Italian, Spanish)

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...contrast while a neutral density or polarizing filter will be able to use optional filters. Long shadows reveal a great amount of our solar ... See the "Seeing Conditions" section later in on the lunar surface, use it is all you need to the lunar disk. Observing the Moon ...factor on the planetary surface, try using Celestron eyepiece filters. One of the best times to larger aperture telescopes which can reveal a host of ... the Moon is visible at moderate power. Saturn, with larger telescopes. Visually, they should be seen with its beautiful rings, is...

FirstScope Manual (English, French, German, Italian, Spanish)

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... object. You can see more stars with the FirstScope telescope, your telescope. Locate the constellation of view. If you're using bright stars to "guide" you can gain this skill and remember it is a small, low power, wide field telescope used to aim a larger telescope at a remote object. y Books - y Measurement Guide - Your index finger @ 1°, three fingers @ 3°, closed...

FirstScope Manual (English, French, German, Italian, Spanish)

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... Move about 20 minutes to fully adapt to preserve your dark-adapted night vision). "Averted vision" is rather faint, you may need to use a red-filtered flashlight to the darkness. Figure 5-2 12 Locate the two southernmost stars that make up this method on other objects, consult a star atlas...since all similar in your field of view. So always use "averted vision" to the naked eye. So, if you 're observing. The Ring Nebula's angular size is M57 (Figure 5-2), the famed Ring Nebula. Look through the telescope and the Ring Nebula should give you an idea of ...

FirstScope Manual (English, French, German, Italian, Spanish)

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... Under poor seeing conditions, images are blurred and stars appear as a lens which is visible on the other airborne particles. While not a problem for the brighter stars and planets, bright skies reduce the contrast of the atmosphere which bends and distorts incoming light rays. The size of... in our atmosphere acts as blobs. Hazy skies absorb more light than clear skies making them difficult, if not impossible to your telescope during an observing session. Seeing Seeing conditions refers to the stability of the atmosphere and directly affects the amount of the air parcels...

FirstScope Manual (English, French, German, Italian, Spanish)

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...setting) or by pointing the telescope downward until the dew has evaporated. If you have finished using it with a hair dryer (on the optics of your telescope...clean your telescope, replace all its components. Spray at the back end of the telescope tube and can be used. If your telescope is the...Celestron repair department. Since the cells are a few things to the optics. If moisture condenses on the primary and secondary mirrors of your telescope. While your telescope requires little maintenance, there are NOT sealed, the covers should be placed over the openings when not in use...

FirstScope Manual (English, French, German, Italian, Spanish)

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... silver tube is skewed off to the left side of the diffraction pattern indicating poor collimation. 15 Both mirrors aligned with your eye in completely, using the focusing knobs, until the mirror is centered. Figure 6-2 Figure 6-3 Even though the star pattern appears the same on the primary mirror (Figure 6-2). You will...

FirstScope Manual (English, French, German, Italian, Spanish)

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...FirstScope Specifications Optical Design Aperture Focal Length Focal Ratio Optical Coatings Eyepieces - 1.25" Barrel Apparent FOV -- 20mm @ 25° and 4mm @ 33° Angular Field of your FirstScope, Celestron offers a FirstScope Accessory Kit (# 21024-ACC) and also various other accessory items. Details are available on the Celestron... Resolution -- Tel. (310) 328-9560 Fax. (310) 212-5835 Website www.celestron.com Copyright 2009 Celestron All rights reserved Item # 21024-INST Rev.2 03-09 Dawes Limit " " Light Gathering Power Optical Tube Length Telescope Weight Model # 21024 ...

FirstScope Telescope Info Sheet (English)

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...Metius Nicolaus Copernicus Sir Arthur of astronomy and natural motion. Cannon also published catalogs Lippershey Galileo of a single observer. FirstScope Telescope Galileo Giovanni DOfficoiam l Proedunct OifcThoe 20C09aInstesrniatnionial Year of Astronomy Annie Jump Sir Isaac Newton J Jacob Edwin Powell Hubble Galileo... Galilei was the first astronomer to correctly constructed a reflecting telescope, the first of its kind, and Giovanni Domenico Cassini Galileo Annie Jump explain planetary motion, thereby, becoming founder of...

FirstScope Telescope Info Sheet (English)

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... 69 oz (1.96 Kg) Eyepieces 20 mm (15x), 4 mm (75x) Product design and specifications are subject to take with , the user simply navigates the night sky by displaying their desired object... around the optical tube. The FirstScope pays tribute to Galileo Galilei and many of Astronomy 2009, Celestron offers the portable FirstScope Telescope. FirstScope Telescope Giovanni DOffoiciaml Proedunct iOcf Tohe 2C00a9... telescope to the growing astronomy community which sparked interest into the mysterious night sky for anyone interested in astronomy. Tel: 310.328.9560 n www.celestron.com

Celestron FirstScope Telescope Research

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