Celestron Advanced VX 6" Newtonian GOTO Telescope

Celestron Advanced VX 6'' Newtonian GOTO Telescope
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Price:  £1,499.00(Inc. 20% VAT)
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Model:  32054
Brand:  Celestron
Design  Reflector
Size  6" (150mm)
Computerized  Computerized GOTO
Level  Intermediate
Mount Type  Equatorial

Availability  

<p style='color:darkorange;'>No stock, delivery time 2 - 4 working days</p>  

No stock, delivery time 2 - 4 working days

       
2 Year Warranty On All New Items
(Excluding Batteries & Globes)




GOTO Telescopes Used For Visual And Astroimaging

Quick Overview:
6” (150mm) f/5 optical design gives excellent wide field views
Parabolic primary mirror minimizes spherical aberration to produce a better image
Integer gear ratios and permanently programmable Periodic Error Correction eliminates recurring track errors from the worm gear
New motors offer improved tracking performance & provide more power to overcome load imbalances
Updated industrial design offers more rigidity, less flexure and improved aesthetics
New design allows viewing or imaging across the meridian without interference from the motors housings
Improved latitude range, can be used between 7 – 77 degrees latitude
Improved electronics contain increased memory for future expansion
NexStar+ hand control offers multiple language programming (English, French, Italian, German, Spanish)

For those new to astronomy and astroimaging, the Advanced VX 6” Newtonian is an excellent entry-level setup that can grow with you. The Newtonian optical design is excellent for visual observing and offers you the largest aperture for the price. Combined with our Advanced VX mount, you’ll have all the tools you need to learn the basics of imaging.

About the Mount

The new Advanced VX mount was specifically designed to provide optimum imaging performance for smaller telescopes. Now your smaller telescope can take advantage of All-Star Polar Alignment and autoguider support. You’ll be able to track through long exposures using permanently programmable periodic error correction. Image across the meridian without doing a meridian flip, so you can seamlessly image the best part of night sky. Advanced VX features significantly larger base castings than our previous design, improving stability under heavier loads. Improved motors offer more torque and can handle slight load imbalances with ease.

Optical Design Newtonian Reflector
Aperture (mm) 150 mm (5.91 in)
Focal Length (mm) 750 mm (30 in)
Focal Ratio 5
Eyepiece 1 (mm) 20 mm (0.79 in)
Magnification 1 38 x
Finderscope 6x30
Optical Tube Aluminum
Fastar Compatible No
Tripod Adjustable, Stainless Steel
Tripod Legs 2"
Weight (lbs) 56 lbs (25 kg)
Power Supply Car battery adapter
Highest Useful Magnification 354 x
Lowest Useful Magnification 21 x
Limiting Stellar Magnitude 13.4
Resolution (Rayleigh) 0.93 arc seconds
Resolution (Dawes) 0.77 arc seconds
Light Gathering Power (Compared to human eye) 459 x
Secondary Mirror Obstruction 1.75" in (44 mm)
Secondary Mirror Obstruction by Diameter 30 %
Secondary Mirror Obstruction by Area 8.78 %
Optical Tube Length 27" in (686 mm)
Optical Tube Weight 10 lbs (4.54 kg)
EQ Mount Weight 17 lbs (7.71 kg)
Tripod Height (Max) 64" in (1626 mm)
Tripod Height (Min) 44" in (1118 mm)
Tripod Weight 18 lbs (8.16 kg)
Counterweight Bar 12" Length, 0.75" Diameter lbs (5.44 kg)
Counterweights 1 x 11 lbs
Latitude Range 7-77 deg
Motor Drive Low cog DC Servo motors with encoders, both axes
Slew Speeds Nine slew speeds, 4 deg/sec maximum
Tracking Rates Sidereal, Solar and Lunar
Tracking Modes EQ North and EQ South
Alignment Procedures 2-Star Align, Quick Align, 1-Star Align, Last Alignment, Solar System Align
Communication Ports 2x AUX ports, Autoguider port, RS-232 port (on hand control)
Computer Hand Control Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
Database 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects
Power Requirements 12V DC 3.5A (tip positive)
Internal Clock Yes
GPS Optional SkySync GPS Accessory

Please note that stock levels do fluctuate so please call or email to check today's stock before placing your order.

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Some items that are showing as in stock are in stock at our holding warehouses, not at the shop. To double check the stock levels at the shop, please contact us on 01909774369 or sales@rothervalleyoptics.co.uk.

The delivery times for most items is 1 - 2 days but again, please double check stock levels on important orders before placing an order via the website.

The delivery costs for courier next day are for mainland UK only. If you live in the Scottish Highlands/Islands, Channel Islands or Northern Ireland, then a shipping surchage will apply. please contact us for prices. Smaller items can still go 1st class via Royal Mail.

Please note that if you are wanting to take advantage of our Saturday and Sunday timed services or next day pre 12 or pre 10:30 services, you MUST check that the stock is here at the shop before placing orders. Also, orders using the Saturday and Sunday services must be placed before 1pm the previous working day. Also, please remember to check that the stock is here at the shop before placing orders. If the stock is not at the shop, we won't be able to ship on any of the timed services. 

Please note International customers will need to contact us for a shipping price prior to ordering via the website. We don't ship all items internationally. It is at our discretion what we ship outside of the UK. This all depends on the size and weight of the items. Please get in touch with us for any postage costs. Please note we do NOT ship telescopes or heavy items outside of the UK. This is due to massive postage costs and problems regarding returns.

If you have any questions regarding stock levels or delivery, please get in touch.

Zygo Interferometer Testing For ED Refractor Telescopes!

We are extremely pleased to announce our Zygo Interferometer is now installed and ready for use! Our experienced staff can test refractor lenses up to 120mm aperture and provide a comprehensive 2 page report showing the optical quality and Strehl ratio, plus much more information. We are using the very latest Zygo MX software to provide a more detailed report compared to other standard reports.

 

The interferometer is essentially a measuring instrument. Within the interferometer is a calibrated laser that is pointed through the optical test surface, then onto a high quality reference sphere, then back through the test subject then to an internal camera which gives us the measurement on the screen. From this, we can adjust the position of the test optic and the reference sphere to obtain a perfectly calibrated system. The more central the laser to the test optic and then on return, the better and more accurate reading and measurement we can take. This takes a lot of adjustment to get the best results from the optical surface. Once the measurement has been taken, we are provided with a series of results that show the optical quality of the surface plus other information. Continue reading for an explanation of the individual values and you can also see a test report that was done on one of our RVO Horizon 60 OTAs. 

We are offering certain telescopes with a Zygo test at an extra cost. Mainly ED doublets and triplets. All available telescopes with a Zygo test report are listed here. Just select Zygo Test Report from the drop down box at the top of the listing and we will test the optics in house and provide a full 2 page report with your scope. This will show you the optical quality of your telescope optics. We can also offer this service on your refractor telescope. Please get in touch for more details about this. 

At Rother Valley Optics, one thing we pride ourselves on is customer service and quality of our equipment. When we test your telescope, we will ensure that it is of the highest quality otherwise, we will reject the scope under our strict quality control and test another model for your peace of mind. One of the main values to look at when testing a refractor is the Strehl ratio. The higher this number, the higher quality lens you have. At Rother Valley Optics, we will guarantee the highest possible Strehl ratio for your telescope.  We will aim to provide 0.95 Strehl or higher on Takahashi, RVO Horizon, William Optics and many more! Generally, the higher the Strehl ratio, the lower the Astigmatism and Coma meaning a better image quality from your instrument. 

Other measurements such as the PV and RMS are important too. With these measurements, the lower the number the better as it shows less curvature on the lens. The flatter an optical lens, the better it will perform. The PV rating (Peak To Valley) is a measurement from the highest point (Peak) to the lowest point (Valley). From this we get the RMS (Root, Mean, Square). This is a similar figure to the PV and measured exactly the same way. The RMS is basically an average height difference from the PV so again, the lower the better. As you can see form the example below, we measured an RMS of just 0.027 wave which is a very good value.

We also measure the Power with our systems which is essentially the error from the reference sphere to the test optic. The reference sphere we use on our system is a very high quality sphere so the closer to zero the Power, the less error between the 2 elements thus ensuring a higher quality optical surface. 

You will also see some more values such as Astigmatism and Coma. Again, these are measured by the interferometer when we take measurements of the optical surface after adjustment. These are values which ideally would be at 0 but as our test optics are all curved lenses, there will always be astigmatism and coma present. The lower the number, the less of these aberations you will effectively see but with most refractors, you can buy field flatteners which will compensate for the coma anyway. The astigmatisms value is explaining the error between the symmetrical curvature of the lens. Basically, no lens will be perfectly symmetrical, the lower the astigmatism, the more symmetrical the lens surface is. 

Once the Zygo test report has been completed, the optical alignment is thoroughly tested and tuned to ensure they are spot on before they leave us. 

All available telescopes are on the website at the link below and ones we've tested already that are available straight away are also listed.

https://www.rothervalleyoptics.co.uk/zygo-tested-refractors.html

Here is an example of the test what we provide. This was a test on one of our Horizon 60 ED OTA's.

For any questions about this amazing new service, please either call 01909774369 or email sales@rothervalleyoptics.co.uk.

 


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Large aperture at an affordable price, our Advanced VX 8” Newtonian provides 78% more light-gathering abilities compared to the 6” model. The parabolic primary mirror minimizes spherical aberration to produce a sharper image near the edge of the field of view.

 

 

 

Rother Valley Optics Ltd
Rother Valley Optics Ltd