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Orion Telescopes

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Intermediate
Celestron Omni XLT 150 Reflector Telescope
$549.95
 
Accepted Payment
Standard Per-Item Shipping Charge: $29.95
More Shipping Information
Expected Ship Date: 10/15/2014

  • High quality telescope optics that start with each lens and(or) mirror being hand selected so only the finest grade of optical glass is used
  • StarBright XLT coatings provide maximized light transmission for great view quality
  • CG-4 German Equatorial mount with setting circles and slow motion controls - to accurately locate and track sky objects
  • Easy no-tool telescope setup lets you spend more time observing
  • Includes Thy Sky Level 1 planetarium software with 10,000 object database and enhanced images


Learn more
Item #  09089
Mfg Model #  31057

Omni XLT series features the stable platform of the CG-4 mount and high quality optics. Using aspheric shaping technology in conjunction with hand-figuring the optics, the Omni XLT presents an image with virtually no spherical aberration. We also added our famous StarBright XLT coating system to further enhance light transmission.

Features include: 

  • High quality optics start with each lens and (or) mirror being hand selected so only the finest grade of optical glass is used
  • StarBright XLT coatings provide maximized light transmission
  • 25mm multi-coated eyepiece - 20mm eye relief, 50-degree FOV
  • CG-4 German equatorial mount with setting circles and slow motion controls - to accurately locate and track sky objects
  • Ball bearings in both axis of the mount for smooth performance
  • Heavy-duty pre-assembled stainless steel tripod featuring 1.75\ legs, accessory tray and bubble level
  • Easy no-tool setup
  • The Sky Level 1 planetarium software with 10,000 object database and enhanced images

About Celestron Reflector Telescopes


A Newtonian reflector uses a single concave mirror as its primary. Light enters the tube traveling to the mirror at the back end. Light is then "bent" forward in the tube to a single point, its focal plane. A flat mirror called a "diagonal" intercepts the light and points it out the side of the tube at right angles to the tube through the eyepiece. The eyepiece is placed there for easy viewing. Newtonian Reflector telescopes replace heavy lenses with mirrors to collect and focus the light, providing much more light gathering power for the money.


You can have focal lengths up to 1000 mm and still enjoy a telescope that is relatively compact and portable. Newtonian Reflector telescopes do require more care and maintenance because the primary mirror is exposed to air and dust. However, this small drawback does not hamper this type of telescope's popularity with those who want an economical telescope that can still resolve faint, distant objects. Newtonian reflectors produce a \"right-side-up image\" but the image will appear rotated based on the location of the eyepiece holder in relation to the ground. Newtonian reflectors are best for astronomical use where right-side-up does not matter. 

Newtonian Advantages

  • Lowest cost per inch of aperture compared to Refractors and Catadioptrics since mirrors can be produced at less cost than lenses in medium to large apertures
  • Reasonably compact and portable up to focal lengths of 1000 mm
  • Excellent for faint deep sky objects such as remote galaxies, nebulae and star clusters due to the generally fast focal ratios (f/4 to f/8)
  • Adequate for lunar and planetary work
  • Good for deep sky astrophotography (but not as convenient and more difficult to use than Catadioptrics)
  • Free of color aberration due to the use of a primary mirror

Newtonian Disadvantages

  • Generally not suited for terrestrial applications
  • Slight light loss due to secondary (diagonal) obstruction when compared with Refractors

Warranty

This product is serviced and supported by its manufacturer according to the terms and conditions included in the packaged product. Orion's limited warranty does not apply. Please contact the manufacturer directly for technical support.

Warning

Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Brighter deep sky
  • Best for imaging
    Lunar & planetary
  • User level
    Intermediate
  • Optical design
    Reflector
  • Optical diameter
    150mm
  • Finder scope lens diameter
    30mm
  • Focal length
    750mm
  • Focal ratio
    f/5.0
  • Magnification with included eyepieces
    30x
  • Resolving power
    0.77arc*sec
  • Lowest useful magnification
    21x
  • Highest theoretical magnification
    354x
  • Limiting stellar magnitude
    13.4
  • Finder scope
    6x30
  • Focuser
    1.25" Rack-and-pinion
  • Mount type
    Equatorial
  • Dovetail bar system
    Yes
  • Motor drive compatibility
    Clock drive sold separately
  • Bearing material
    Sealed ball bearings
  • Latitude range
    20-60
  • Setting circles
    Yes
  • Polar-axis scope
    Sold separately
  • Counterweights
    One 7 lb., one 4 lb.
  • Tripod material
    Steel
  • Tripod leg diameter
    1.75 in.
  • Length of optical tube
    26.5 in.
  • Weight, optical tube
    12.0 lbs.
  • Weight, mount/tripod
    33.5 lbs.
  • Weight, fully assembled
    46.0 lbs.
  • Warranty
    Two year
Each Omni telescope comes in two boxes.  One box contains the tripod, tripod accessory tray/brace, equatorial mount, counterweight bar, two counterweights, r.a. knob, dec. knob, polar axis polar cap, and a Phillips head screwdriver.  The second box contains the telescope optical tube assembly, finderscope and bracket, eyepiece, and other standard accessory items per the specific model that you have. 

Orders received by noon Pacific Time for in-stock item the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

Can it be used for terrestrial viewing?
No. The Omni XLT 150 is a reflective telescope. Because of the mirror system this telescope flips the image you see upside down and backwards. If you would like to use this telescope for viewing land objects you will need to purchase an erecting prism to correct the image.

Can you order this with a motor drive?
Yes, we do carry a motor drive for this mount. The item number for this motor drive is CELE228.

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