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Telescope: Celestron NexStar 90SLT & Accessories - $550 (Springfield)
S National near Walnut Lawn
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COMPLETE Setup for Visual Astronomy. Solar, Lunar, Planets, Resolve Binary Stars, etc.
PERFECT Learning Opportunity for Inquisitive Young Minds.
EXCELLENT Planetary Telescope on a Computerized Mount.
EXCELLENT Spotting Scope: mount on a camera tripod w/ low powered eyepiece and 45-degree diagonal (Included).
READY for you to Add the Camera of your choice and Capture Celestial Objects.
Celestron's NexStar SLT (Star Location Telescope) is a computerized Altitude/Azimuth (Alt/Az) mount with hand controller and database of over 40,000 objects. Runs on 8 AA batteries OR a Lithium Power Tank such as the one INCLUDED in this package.
The telescope is a Maksutov-Cassegrain with a 90mm objective lens and 1250mm focal length for a focal ratio of f/13.9.
The MAK is a catadioptric telescope, which means the optical design includes both a lens and a mirror. The light coming through a MAK passes through the corrector lens to the primary mirror and back to a spherical secondary mirror before it hits the eyepiece. Images are bright, sharp, and virtually free of chromatic aberration.
The Maksutov-Cassegrain’s optical design offers several unique benefits. Instead of a secondary mirror, the MAK features a “secondary spot” of reflective coating applied directly to the inside of the corrector plate. Because of this, the telescope does not require frequent collimation like a Schmidt-Cassegrain. Also, the secondary spot is significantly smaller than a traditional Schmidt-Cassegrain secondary mirror, giving the MAK its signature high-contrast views.
The Mount & (bare) Telescope weigh in at about 12 pounds, making this system easy to transport to dark areas in addition to backyard use. Everything is included to start visual observations immediately. You can add your camera of choice if desired to start capturing the cosmos. Add your own dedicated astronomy camera or use a simple and inexpensive T2-ring adapter to directly mount most any modern DSLR or Mirrorless interchangeable lens camera.
Everything is in excellent working condition.
All accessories are 1.25" size.
EVERYTHING INCLUDED:
*Celestron NexStar SLT computerized go-to & tracking mount with steel tripod and accessory tray
*Celestron SLT Hand Controller
*Celestron 90mm x 1250mm Maksutov-Cassegrain telescope with clean optics (minor wear on telescope exterior)
*Celestron PowerTank Lithium LT power supply with 73.3 watt hours of storage (plenty for all-night sessions). Includes cord to power scope and charger with cable to recharge the PowerTank. 3 adapter heads for international use of the charger.
*Original Manual for the NexStar 90SLT
*Finder Scope. Originally the NexStar came with a red-dot finder. It was just a budget item they throw in. I replaced it by building a finder scope out of an SVBONY SV165 40mm x 160mm Guide Scope + SVBONY SV188P 90 Degree Dielectric Mirror Diagonal + SVBONY Illuminated Double-line Crosshair Reticle 12.5mm Plossl Eyepiece. This provides 12.8x magnification and crosshairs that light up (on/off switch). The reticle runs on 3 small button batteries.
*Original manual for the SV165
NEVER VIEW THE SUN OR POINT YOUR TELESCOPE AT THE SUN WITHOUT PROPER PROTECTION - this particular SLT has had the Solar viewing mode unlocked in the settings!!!!! - Put all protection in place before aiming it at the sun!!!!!
*Spectrum Telescope ST425G Glass Solar Filter (more durable than film) - perfect fit and safe protection for the 90SLT
*SVBONY Solar Finder Scope - safely use this finder to align your main scope with the sun
*One pair of Astronomy Magazine Solar Glasses - safely look at the sun when wearing these glasses. Coated plastic lenses (more durable than film) in a wraparound plastic frame, includes storage pouch. Sorry, I forgot to include this item in the pictures.
*SVBONY 400mm Dew Heater Strip. Keep dew from forming on the corrector lens. Can be powered by the PowerTank in addition to the SLT mount. Storage pouch for dew heater strip.
*Extra accessory mounting shoe
*SVBONY sew-on patch (7th anniversary)
*Generic 5x Barlow
*SVBONY SV221 Correct Image Prism Diagonal (45 Degree)
*Celestron Star Diagonal (90 Degree)
*Astromania eyepiece projection adapter - combine with T2 adapter and an eyepiece to magnify the view imaged by your DSLR or mirrorless camera
*SVBONY CLS (City Light Suppression) filter which screws on to 1.25" eyepieces or eyepiece adapter
*Assorted 1.25" filters: Sun, Moon, Red, Green, Blue
*Celstron 25mm plossl eyepiece
*SVBONY HD series eyepieces, 62 Degree field of view Aspherical eyepieces in 23/10/4mm
*Generic 12.5mm plossl eyepiece
*Celestron 9mm omni-plossl eyepiece
*Celestron 6mm omni-plossl eyepiece
*Generic "Series 500" 6.5mm plossl & 4mm plossl eyepieces
*1.25" & 2" Extension Tube sets - useful for correct spacing of cameras and accessories to maintain focus distance
I've included pictures I've taken of the Sun and Moon using this rig and my Sony mirrorless camera. There is also a picture of this rig as I used it taking photos during the April 8th, 2024, total solar eclipse from West Plains MO.