The battery pack will mean you won't be hunting around for a fresh set of AA batteries every time you want to go observing. The higher power eyepiece will increase the magnification from the 53x that you gt out of the box to 130x magnification that's ideal for planetary viewing. The moon filter will add contrast and cut down on the brightness of the moon under magnification. These accessories will help you get the best out of your NexStar 4SE. Give us a call with any questions you have about accessories. The Original, Reimagined for the 21st Century More than 50 years ago, Tom Johnnson founded Celestron and revolutionized the world of amateur astronomy with large aperture, long focal length telescopes at affordable prices.The Celestron 8 brought the hobby of astronomy to the masses and established Celestron as the world’s premier telescope maker. The current range of Celestron NexStar Telescopes build on this heritage by offering easy to use, telescopes with apertures that offer great views of our solar system and beyond.The Celestron NexStar 4SE comes loaded with a database of more than 40,000 objects it can track and display. View the Universe's Most Impressive Celestial Objects The 4SE's four-inch primary mirror packs enough light-gathering ability to observe the best that the solar system has to offer: Saturn's rings, the cloud bands on Jupiter, and geographic features on the surface of the Moon. When it comes to deep sky objects, take your 4SE to a dark-sky site and you'll see hundreds of pinpoint stars in the Hercules Globular Cluster, the spiral arms of the Whirlpool Galaxy, and more. Revolutionary Single Fork Arm Mount We know the best telescope is the one you will use most often. That's why Celestron's engineers created NexStar 4SE's unique, patented single fork arm mount. It's perfectly portable and makes setup quick and easy. What's more, the NexStar SE breaks down into several lightweight and compact pieces, making it easy to transport, even in small vehicles. You'll have no problem getting the NexStar 4SE to your favourite observing site, or setting it up quickly in your backyard.Of course, it's what's inside the mount that really counts. Sturdy construction from high-quality components give NexStar 4SE the pointing and tracking accuracy needed to observe and follow your favourite targets with push-button ease. Use the included NexStar+ hand control to locate over 40,000 celestial objects, or take a Sky Tour and let your telescope show you the best objects currently visible.Aligning your telescope is simple and painless, too, thanks to SkyAlign. This process makes alignment as easy as 1-2-3: just center three bright objects in your eyepiece and press ALIGN. For even easier alignment, attach our StarSense AutoAlign and your NexStar SE aligns itself! Advanced Features Let the NexStar 4SE Grow with You The NexStar SE series is compatible with all the high-tech accessories advanced users love. Provide GPS coordinates to your telescope with SkySync, or add automatic alignment functionality with StarSense AutoAlign.Its built-in wedge allows you to track long exposures. if you're interested in imaging the Moon and planets, pair your NexStar 4SE with one of our planetary cameras. From your first observing session and for years to come, the NexStar 4SE is your trusted companion. Recommended Accessories The Celestron NexStar 4SE is ready to use right out of the box, but there are a couple of items that will really enhance your experience with the telescope. A rechargeable battery pack, for this scope we recommend the PowerTank Lithium (18771). A higher power eyepiece, for this scope we recommend the Celestron Luminous 10mm (93431). A neutral density moon filter, for this scope we recommend the Antares 13% (ND13). Specifications OPTICAL TUBE INFO: Optical Design: Maksutov-Cassegrain Aperture: 102mm (4.02") Focal Length: 1325mm (52") Focal Ratio: f/13 Focal Length of Eyepiece 1: 25mm (0.98") Magnification of Eyepiece 1: 53x Finderscope: StarPointer red dot finderscope Star Diagonal: Internal Flip mirror for straight thru or 90° viewing angle Optical Tube: Aluminum Highest Useful Magnification: 241x Lowest Useful Magnification: 15x Limiting Stellar Magnitude: 12.5 Resolution (Rayleigh): 1.37 arc seconds Resolution (Dawes): 1.14 arc seconds Light Gathering Power (Compared to human eye): 212x Secondary Mirror Obstruction: 35mm (0.38") Secondary Mirror Obstruction by Diameter: 34% Secondary Mirror Obstruction by Area: 12.00% Optical Coatings: StarBright XLT Optical Tube Length: 343mm (13.5") Optical Tube Diameter: 125mm (4.9") Optical Tube Weight: 6 lbs (2.7 kg) Dovetail: CG-5 Dovetail bar MOUNT INFO: Mount Type: Computerized Altitude-Azimuth Single Fork Arm Instrument load capacity: 10 lbs (4.54 kg) Height adjustment range (includes mount and tripod): 939.8mm - 2397mm (37" - 55") Tripod leg diameter: 38.1mm (1.5") Stainless Steel Mount Head Weight: 7 lbs (3.2 kg) Accessory Tray: Yes Tripod Weight: 10 lbs (4.54 kg) Slew Speeds: 9 slew speeds - max speed 3°/second Tracking Rates: Sidereal, Solar and Lunar Tracking Modes: Alt-Az, EQ North and EQ South GPS: N/A Dovetail Compatibility: CG-5 dovetail Number of Auxiliary Ports: 1x AUX Port Autoguide Port: No USB Port: Yes, Hand Control input Power Requirements: 8-AA batteries (not included) and 12 VDC-750 mA (Tip positive) Motor Drive: DC servo motors Alignment Procedures: SkyAlign, 1-Star Align, 2-Star Align, Auto 2-Star Align, Solar System Align, EQ North / EQ South Alignment (EQ align requires an equatorial wedge) Periodic Error Correction: No Computerized Hand Control: Double line, 18 character Liquid Crystal Display with 19 fiber optic backlit LED buttons NexStar+ Database: 38,181 accessible objects. Enhanced information on over 200 objects. Software: Celestron Starry Night Special Edition Software and SkyPortal App Total Kit Weight: 23 lbs (10.4 kg) Solar Warning Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). Permanent and irreversible eye damage may result.Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it.Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present.
