Orion xt8 manual pdf. Orion SKYQUEST XT8 user manual 2019-01-25

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Orion SKYQUEST XT8 user manual

orion xt8 manual pdf

Sunspots are directly related to magnetic activity in the Sun. This is important when using the optional IntelliScope Computerized Object Locator, since the optical tube must be exactly vertical during the two-star alignment procedure. Now, thread the bolt into the hole in the base side panel just below the cradle. These coatings normally last through many years of use before requiring re-coating which is easily done. Loosely attach the front brace B to the two side panels C with six of the base assembly screws in the predrilled holes.

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Orion XT8 Telescope

orion xt8 manual pdf

The telescope requires very little mechanical maintenance. If the load seems too heavy, disengage the springs and carry the base and tube separately. Dobsonian telescopes are really catching on, so expect for this to be no different, especially with the power that it wields coming straight out of the box. This warranty gives you specific legal rights, and you may also have other rights, which vary from state to state. The optical tube is steel and has a smooth touch the surface of the mirror with your fingers; lift it care- painted finish that is fairly scratch-resistant. The included extras are great, but some of the more powerful accessories were not included.

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Orion Skyquest XT10, XT8, XT6 Assembly Photos during Construction

orion xt8 manual pdf

If the entire primary mirror reflection is not visible in the secondary mirror, as in Figure 12c, you will need to adjust the tilt of the secondary mirror. SkyQuests have also been optically optimized for visual use, since photographic optimization degrades visual performance. Be careful not to touch the aluminized surface of the mirror with your fingers! You should soon see the point at which focus is reached. Notice that the object being viewed is now larger, but somewhat dimmer. Refocus the finder scope on a distant object by threading the objective lens cell in or out on the finder scope body. Then follow the same procedure described below for cleaning the primary mirror.

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Orion 8945 SkyQuest XT8 Classic Dobsonian Telescope Review

orion xt8 manual pdf

If it has, you might want to continue an additional turn or two, or move to one of the other pairs of screws and try adjusting them. This can lead to a lot of extra money being spent on extra purchases for power users who are not satisfied with the basic setup. Select one that shows the positions of many deep-sky objects, so you will have a lot of options to choose from. Use caution; rubbing too hard may scratch the lens. Aligning the Finder Scope The finder scope must be aligned accurately with the telescope for proper use. Deep-sky objects will often disappear at higher magnifications, since greater magnification inherently yields dimmer images. With a host of extras and a comfortable price point, it is one of the better deals in the industry.

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Orion Skyquest XT10, XT8, XT6 Assembly Photos during Construction

orion xt8 manual pdf

Some observers find it convenient to sight along the tube to do this. The altitude friction will roughly equal the azimuth friction, ensuring optimal performance. Avoid viewing over rooftops and chimneys, as they often have warm air currents rising from them, which distort the image seen in the eyepiece. Objects to Observe Now that you are all set up and ready to go, one critical decision must be made: what to look at? Improper cleaning can scratch mirror coatings, so the fewer times you have to clean the mirrors, the better. The CorrecTension system is now installed and engaged. A simple star test will tell you whether the optics are accurately collimated. Important Note: Do not look at the Sun with any optical instrument without a professionally made solar filter, or permanent eye damage could result.

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Orion SKYQUEST XT8 User Manual

orion xt8 manual pdf

The purpose of the lock nut is merely to keep the two baseplates from coming apart when moving the telescope. Its powerful frame and lens is a great combination for buyers that want a good balance in their telescope. It is not critical that the base be exactly level, but it should be placed on somewhat flat ground or pavement to ensure smooth movement of the telescope. Loosen the lock ring located behind the objective lens cell on the body of the finder scope see Figure 6. Note: When tightening screws, tighten them until firm, but be careful not to strip the holes by over-tightening.

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Orion Skyquest XT10, XT8, XT6 Assembly Photos during Construction

orion xt8 manual pdf

If the product is not registered, proof of purchase such as a copy of the orig- inal invoice is required. This is because many of them are quite faint, yet have some extent apparent width. The large primary mirror and the elliptical secondary mirror of your telescope are front-surface aluminized and over-coated with hard silicon monoxide, which prevents the aluminum from oxidizing. Loosen the three small alignment screws in the center hub of the secondary mirror holder several turns. If you buy a reflector scope, make certain the mirror comes from the factory with a center mark -- if not, you must remove the mirror and center mark it.

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Orion XT8 Telescope

orion xt8 manual pdf

A good way to judge if the seeing is good or not is to look at bright stars about 40 degrees above the horizon. Many observers like to make drawings of sunspots to monitor how the Sun is changing from day to day. Beware, too, that nearby porch and street lights and automobile headlights will spoil your night vision. Not all the planets are generally visible at any one time. The maximum attainable magnification for a telescope is directly related to how much light its optics can collect. Site Selection Pick a location away from street lights and bright yard lighting.

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Orion SKYQUEST XT8 User Manual

orion xt8 manual pdf

This section is intended to get you ready for your first voyage through the night sky. Place the brass bushing F onto the azimuth axis scre Summary of the content on the page No. It is especially important that the optical tube does not knock around; this can cause the optics to become misaligned, and could dent the tube. Make sure you are comfortable with the weight of the whole assembly before attempting to carry it! Altitude helps because it decreases the amount of distortion-causing atmosphere you are looking through. The secondary mirror is centered in the focuser; the reflection of the primary mirror is centered in the secondary mirror, and the reflection of the secondary mirror is centered in the reflection of the primary mirror.

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Orion SKYQUEST XT8 user manual

orion xt8 manual pdf

The tilt of the primary is adjusted with the three pairs of collimation screws on the back end of the optical tube using a Phillips screwdriver Figure 15. Take plenty of time to let your eyes adjust to the darkness. The dust cap on the front of the telescope tube should always remain in place when the telescope is not in use. Recommended Level About intermediate and up would be the preferred level, although some beginners may be able to use this telescope if they are ambitious enough. Even if you decide to stick with the Classic version, it still has over a decade of good use if you keep it fresh with power upgrades.

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