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AstroTrac

Astronomy Equipment

 
 
 

AstroTrac TP3065 Pier

The elegant TP3065 is the ultimate in portable piers created specifically for astrophotographers on the move.

£299.99

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AstroTrac TW3100 Wedge

The stylish TW3100 sets a new standard for high strength compact equatorial wedges.

£261.20

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AstroTrac TT320X-AG

With the TT320X-AG you can take longer exposures at longer focal lengths allowing you to create brighter, less noisy images.

£373.53

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Notes from our astronomers
Runar Sandnes reviews the Astrotrac TT320X-AG

We love it when people share their thoughts and reviews on our products so when we came across a product review from Runar Sandnes over at dinkikkert.no, a Norwegian vision tech review site we wanted to share it with the rest of you. The review is written in Norwegian so may not be accessible to all of you but Runar's also produced some beautiful footage of the Astrotrac kit in action which we've featured above.

Here's the link if you'd like to read Runar's full review (in Norwegian)

http://blogg.dinkikkert.no/astrotrac-enkel-astrofotografering-for-alle/

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The AstroTrac monthly photography competition

We love great astro photography and we love sharing our favourite images with you. One of our favourite things is when customers get in touch with us to share examples of their work and we get to see some of the fantastic photography you produce using our products. 

This month we're hoping to take things up a notch. We're very please to announce the launch of our new monthly astrophotography competition. Each month we're offering you the change to have a written feature on our blog along with the chance to showcase some of your photography work. 

To enter simply send us your favourite image (which must be at least 1mb in size) along with a brief description of when, where and how you took the shot. At the end of each month we'll choose our favouritre image and notify the winner. Images must be minimum dimensions 800x600 & images must be in .jpg format. 

We're really looking forward to seeing all of your beautiful examples, good luck!

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European solar eclipse 2015
It's just 109 days until the first solar eclipse of 2015 and we were really exited to discover that it's going to be easily visible in Europe.


On March 20, 2015 one of the most important and spectacular celestial events in Norway this century will take place, a total solar eclipse. Due to the weather conditions in Norway at this time of year Svalbard is beyond competition regarding expected visibility.

On the North Pole the Sun will become totally eclipsed as it comes into view and on the Norwegian mainland more than 90% of the Sun will be eclipsed, for the majority of Europe this will be the most accessible total eclipse in several years. The eclipse will only be partial for people in Iceland, Europe, northern and eastern Asia and northern and western Africa but it will still be a fantastic astrological event to witness. 

As seen from the Earth, a solar eclipse is a type of eclipse that occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun. The Sun's distance from Earth is about 400 times the Moon's distance, and the Sun's diameter is about 400 times the Moon's diameter. Because these ratios are approximately the same, the Sun and the Moon as seen from Earth appear to be approximately the same size in the sky, this allows the moon to completely obscure the sun as it passes in between our planet and the star. The shadow cast by the moon on our planet in the light of the Sun is experienced by people on the surface as the solar eclipse. 

This solar eclipse holds special significance in Norway because it is due to occur on the same day that the Sun rises for the first time after 6 months of winter, this sequence of events only happens once every 500,000 years.

If you're interested in finding out more about the solar eclipse or if you're thinking about booking up a trip yourself visit www.visitnorway.com

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forthcoming events
European Astrofest 2015
6th
The greatest astronomy show on Earth will return to London on 6th & 7th February 2015. Brought to you by the makers of 'Astronomy Now' one of the UK's leading astrophotography magazines, European AstroFest is the world's premier space conference and exhibition bringing together the professional and amateur communities, AstroFest 2015 already seems to be lining up to be the biggest and best event yet.

AstroFest's team are promising to be working on a stellar line-up of personalities to address the conference. During the course of the two-day event, speakers from around the world will talk on some of the most exciting topics in astronomy.

If you are looking for a new telescope, a better eyepiece, a state-of-the-art CCD camera, a good astronomy book, or are thinking of taking up astronomy at university, European AstroFest 2015 is the place to be.

Exhibition tickets for AstroFest will be available on the door priced at £8. Pick up a copy of the February issue of Astronomy Now to get £2 off adult admission to the exhibition. Conference tickets for Saturday are now sold out and a few tickets remain for Friday's conference. Exhibition tickets are available for both days.

For more information on this years event or to book your tickets in advance online check out the European Astrofest official website here: http://europeanastrofest.com/


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Quadrantids Meteor Shower
3rd

The Quadrantids is an above average shower, with up to 40 meteors per hour at its peak. It is thought to be produced by dust grains left behind by an extinct comet known as 2003 EH1, which was discovered in 2003. The shower runs annually from January 1-5. It peaks this year on the night of the 3rd and morning of the 4th. Unfortunately the nearly full moon will block out all but the brightest meteors this year. Best viewing will be from a dark location after midnight. Meteors will radiate from the constellation Bootes, but can appear anywhere in the sky.


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Industry news
Canon 60Da Camera Review
DSLR cameras are great for astro imaging. They allow you to take extended exposures of the night sky, and the fact that you can review the results immediately afterwards means you can alter settings on the fly to get your shots just right. Standard DSLRs aren’t perfect for astro imaging though: they have a filter that reduces the amount of infrared light that enters the image sensor. These so-called ‘hot mirrors’ are needed because DSLR imaging chips tend to be very sensitive to infrared light. If left unchecked this would, among other things, cause issues with colour balance in normal daytime use. Unfortunately, infrared filters also tend to block other red wavelengths, including the all-important hydrogen-alpha (h-alpha) wavelength at 656.3nm. Many deep-sky objects emit strongly in h-alpha, so using a filter that blocks this light isn’t ideal; it often causes objects to appear less detailed and off-colour, typically rather too blue.        In recognition of the fact that many people use Canon cameras for deep-sky imaging, the company has developed a variant of the 60D dedicated to astronomy – the 60Da. This is a standard Canon 60D with a replacement infrared-blocking filter that lets in up to three times more h-alpha light than the base model, putting the all-important scarlet hues back into deep-sky objects. Building on past success The 60Da isn’t the first camera that Canon has developed with astrophotographers in mind. In 2005 it launched the 20Da, a specialised version of the 20D with a modified infrared-blocking filter that let more h-alpha light through. Despite its higher price tag compared with the 20D, the limited run 20Da turned outto be very popular indeed. The 60Da is a fine camera in its own right. It has all the features you’d normally expect of a modern DSLR including a live view, the 10x magnification of which is excellent for focusing on bright stars and planets. It also includes a 1,040,000 pixel, 7.5cm tilt-and-swivel review screen. This is a useful feature if you intend to attach the camera to a telescope because it allows you to view the screen even when the back of the camera is in an inaccessible position. Changing the camera’s ISO alters the amplifier gain, which is used to stretch the recorded signals. Unfortunately high ISO values also amplify image noise. In earlier models, using an ISO higher than 1600 produced images that had significant background noise – they were a bit of an acquired taste. The ISO range in the 60Da runs from 100 up to 6400 with a switchable extension to 12800. The combination of the DIGIC 4 processor and some excellent noise reduction algorithms means that several ISO values above 1600 are much improved, which is excellent news for meteor photographers. Our wide-field shots of the Milky Way passing through Cygnus and down towards Sagittarius, taken using a 14mm f/2.8 lens, were quite acceptable up to ISO 6400. At ISO 12800 there was some detail loss and noise present, but the results weren’t terrible. The upside of this is that it’s possible to take decent wide-field, non-trailed, short exposures of our Galaxy with the camera mounted on a fixed tripod. Slipping back to ISO 1600, we took some test shots of the North America Nebula through an f/3.3 astrographic telescope. This object emits strongly in h-alpha, and comparing the results with shots from an older 20Da model revealed that the levelof red detail coming through was very similar. If you’re wondering if this is the perfect DSLR for astrophotography, it comes very close. It could do with an option to switch the review screen to a red night-vision mode, and it could do with a better way to identify the various control buttons and dials in the dark – they light up bright white. The inclusion of an intervalometer, as found on some Nikon models, would be good too. Perhaps one day this will happen, but in the meantime kudos to Canon for making the effort. The 60Da is definitely a very impressive camera for astrophotography.
Posted 3rd Jan READ MORE

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