Bresser Galaxia 114/900 EQ Reflector Telescope

Your easy start in astronomy: through this entry-level telescope including many accessories, you will soon admire the Sun, Moon, planets and some deep-sky objects.

Complete kit consisting of telescope, tripod, mount and accessories
Easy-to-use reflector telescope for beginners
Fine adjustment with flexible shafts in two axes
Telescope aperture: 114 mm / focal length: 900 mm
Very good for Sun, Moon and planets
Astrophotos with smartphone possible
Many accessories for an immediate start
Secure aperture solar filter included

Fascinating Jupiter, breathtaking Ring Nebula and glowing Pleiades – there are infinite beauties to admire in outer space. With this complete telescope set for beginners, you can explore them with your own eyes, and do so immediately. Everything is included for a quick and easy start in sky observation: the astronomical reflector telescope with 114 mm aperture and 900 mm focal length, the equatorial mount, the tripod and a wide range of astronomical accessories. In addition, the telescope can be operated very easily, even by beginners. The Galaxia is particularly suitable for observing the Moon and planets as well as star clusters and bright gas nebulae.

Getting started easily with a true astro-classic – the telescope
This set enables you to make your first astronomical discoveries through a classic reflector telescope, a so-called Newtonian reflector. For many beginners, the view through telescopes of this type is rather unusual: you don't look in at the back of the telescope, but at the front and laterally. This way you can always enjoy your observations in a comfortable physical position. Even if the telescope is pointed vertically upwards into the sky, you don’t have to bend down. Another important advantage of these reflecting telescopes: the optics are absolutely free of chromatic aberrations and thus score points with their good imaging properties.

Due to its aperture of 114 mm, the entry-level telescope already collects a lot of light from the celestial objects. In addition, 114 mm aperture and 900 mm focal length result in a large focal ratio (ratio of aperture to focal length) of 1 to 7.9 (F/7.9). As a result, you’ll enjoy a sharp image with good contrast. The combination of large aperture and long focal length makes especially Moon, Sun and planets look very impressive through this telescope. But you can also use it to observe many deep sky objects. Look forward, for example, to your first impressions of sparkling open star clusters and globular clusters. But also bright gas nebulae such as the Orion Nebula M42 or the Dumbbell Nebula M27 can already be seen with this telescope.

However, how close do the celestial bodies appear through the astronomical telescope? The resolving power of the 114 mm aperture allows for magnifications of up to 230x with sharp images. Technically even more would be possible, theoretically up to 675x using the included accessories. But as the magnification increases, the image sharpness can then slowly decrease. And another factor always determines the answer to the question of possible magnification: the air turbulence in the atmosphere (seeing conditions).

Note for nature lovers:
If you choose a Newtonian telescope like the Galaxia reflector telescope, you can look forward to a specialist in astronomical observation. However, the image is always displayed laterally reversed as well as upside down, which makes no difference when observing the sky. However, this type of telescope is less suitable for nature and landscape observation during the day. Would you like to use your new telescope for exciting nature discoveries as well? Then we recommend that you choose one of the BRESSER refractor telescopes.

Perfect foundation for stargazing newbies – mount and tripod
You found the ideal place for your start in astronomy? Then go ahead and mount the beginner's telescope on the equatorial mount and the height-adjustable aluminium tripod. This type of mount has a special advantage over azimuthal models: the movement of the celestial bodies is tracked on just one axis instead of two. To do this, you align one axis parallel to the Earth's axis beforehand. This so-called "alignment" is easily done: you simply point the axis approximately to Polaris. Another advantage of this particular mount is that you move the axes via two flexible shafts with fine adjustment. Perfect for comfortable and sensitive adjustment and tracking of your telescope. Always at hand: The extensive accessories can be stored on the shelf between the tripod legs.

Keep track of things automatically: For this telescope’s equatorial EQ-3 mount, the tracking motor with item number 4951400 is available as an optional accessory. This eliminates the need to manually track a celestial object set in the telescope. When this motor is installed at the mount, it automatically tracks the celestial object, keeping it in the field of view of the eyepiece. This makes observing the night sky even more comfortable!

Everything you need for your new hobby – the accessories
Since the telescope kit comes with an extensive range of accessories, you are perfectly equipped for your first steps in the fascinating world of astronomy. Simply install the LED viewfinder parallel to the tube, adjust it and look through. As you do so, you will see a red dot projected onto a small ground-glass screen inside the viewfinder. It appears to hover in front of the sky at the exact spot where the telescope is pointed. This helps you to find celestial objects and the exact telescope alignment more easily.

Simply change your perspective – with the two eyepieces you can marvel at your favourite astronomical objects in different magnifications. They are easily inserted into the telescope's focuser using the sockets, which have the standard diameter of 1.25 inch (31.7 mm). Do you want an even more detailed view? Then simply triple the magnification of the eyepieces using the 3x barlow lens.

Astronomical observations are well worthwhile even during the day: enjoy a safe view of sunspots and granulation on our own star with the solar filter.
CAUTION: Never point the telescope at the sun without the solar filter!

Take your first photos of the Moon or the Sun, and do it easily: the smartphone adapter enables you to attach your smartphone camera to the telescope and soon enjoy your very own astronomical snapshots.

FEATURES

Reflector telescope with 114 mm aperture and 900 mm focal length
Reflector type Newton
Well suited for observing Sun, Moon and planets, also star clusters and gas nebulae are visible
Height-adjustable tripod with equatorial EQ3 mount
Sensitive adjustment through flexible shafts and fine adjustment in both axes
Easy to use, very suitable for beginners
Focal ratio F/7.9, thus sharp image and good contrast
1,25 inch (31,7 mm) eyepiece focuser
Two eyepieces and one barlow lens with 1.25 inch (31.7 mm) extension tubes for different magnifications
Safe solar observation with the included solar filter
Easy first steps into astrophotography with smartphone camera adapter

SCOPE OF DELIVERY

Telescope
Aluminium tripod
Equatorial EQ3 mount
Eyepieces: 4 mm and 20 mm (1.25 inch sockets)
Barlow lens 3x (1.25 inch socket)
LED illuminated dot finder
Solar filter
Smartphone camera adapter
Accessory tray
Astronomy software download
Instruction manual

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.

Are you interested in this product but would like to speak to someone with some more information? Simply fill in the form below and we will get back to you as soon as we can!

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