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Archive for 2016

Blog Archives

Telescope configurator with new telescopes: 6 steps to your dream telescope

August 15 2016, Marcus Schenk

Optics, mounts and accessories: For two years you have been able to use the Astroshop.de telescope configurator to custom compile your own telescope, and now we have considerably extended the configurator’s functions. You can now choose from 12 different telescopes and adapt the telescope to even better serve your needs.

as-omegon-konfigurator-en

In the past, you have had to content yourself with the telescopes on offer. Why not switch things up and make buying a telescope a more personalised experience? This is what we at Astroshop.de thought, too, when we designed the configurator. We started with two Newton telescopes.

Now, the Advanced Telescope Series offers a full range of new reflectors and refractors:

Would you like to give it a try and take a look at the telescopes? This way to the telescopes!

How to start telescope selection

It’s fun to play with the configurator. What might my telescope look like? Which mounts and accessories are important to me? Do I prefer a simple or a more sophisticated eyepiece?

Simply click on this link and start configuring your dream telescope by first choosing the optics. The overview shows all available optics including basic prices. Step by step, you now make your way to mounts, focusers, eight different finderscopes, eyepieces and other accessories.

When it comes to accessories, you may even skip individual steps; for example, if you already have good eyepieces. This means that you are almost entirely free in your selection.
And the best part is: You can activate or deactivate your selection with a tick on the right. You can see in real-time how the prices change in the top right corner. This way, you not only choose each individual telescope component, but you also have full control over pricing.

Protection against unsuitable combinations

One of the most important prerequisites: the tubus needs to match the mount. How quickly do you accidentally place too large an optics on too small a mount. Using a 6” refractor, for example, on a small EQ-300 mount would be an unstable and shaky affair, as if you were using a telescope on a sailing ship in heavy seas. To avoid this, not every tubus can be combined with every mount. In this case you won’t see a tick but a cross next to the item.

No matter whether you’re a beginner or an advanced stargazer: For hobby astronomers, the telescope configurator is an alternative to the finished telescope sets. It simply gives you more control when purchasing your telescope.

Why not give it a try: configure your telescope now.

New: Celestron Powertank Lithium 86 Wh

August 8 2016, Stefan Taube

The Powertank portable, rechargeable batteries are an easy and economical way of ensuring power supply to the motorized mounts. With its lithium-vivianite rechargeable battery, the manufacturer, Celestron, has introduced a new Powertank to the market: the Celestron Lithium 86 Wh.

Celestron Powertank Lithium LiFePO4 84Wh

Celestron Powertank Lithium LiFePO4 84Wh

This new Powertank combines the advantages of lithium technology – high power density, cycle life, better environmental compatibility – with a well thought-out design. Using the supplied Velcro tape, the Powertank Lithium 86 Wh can be simply fastened to the tripod leg.

It not only provides a 12 Volt output voltage for the telescope mount, but is also equipped with charging sockets for your tablet and smartphone.

A cable with utility plug connects the telescope with the Powertank. This standard originating from the cigarette lighter in a car has become well established. Most mounts include a corresponding cable in their scope of delivery. You can, however, also buy the cable separately here.

The Celestron Powertank Lithium 86 Wh also has a torch (flashlight) function, optionally with white or red light. All switches and sockets are protected by hinged lids, making sure that they stay free of dirt or dust during long-term storage.

 

Talking of storage: There is a problem with the classic Powertanks, in that they will fail, if not used for a long time. They suffer self-discharge, which is accompanied by a loss of storage capacity. Starting to use a telescope again after an extended period of not observing the night sky may result in a very unpleasant surprise indeed. In this area – the so-called storage life – the new Powertank Lithium 86 Wh is also superior to its predecessor!

3D eyepieces: discover the third dimension!

August 1 2016, Stefan Taube

The use of binocular attachments (bino viewers) or astro binoculars with eyepiece connection makes for a stunning view of celestial bodies. The surfaces of the Moon or the planets, or even star clusters appear to be three-dimensional. It has been proven – and you can easily see this for yourself – that it takes two to see one: Looking through the optics with both of your eyes is a much more relaxing experience, and the processing of signals in the brain results in a much brighter, higher contrast impression. Even the colours of planets seem more vibrant.

3D Astronomy L-O-A 21mm 1,25" Set

3D Astronomy L-O-A 21mm 1,25″ Set

The new eyepieces from 3dastronomy dramatically enhance this effect! They come with an integrated Lederman Optical Array (L-O-A). This is a component in one of the two eyepieces of the set, which was developed by Russ Ledermann, the well-known optician.

This component consists of five square glass plates, which are mounted on the field lens. Used in both eyepieces of a binocular attachment or binoculars, it provides a crisp, three-dimensional image. By turning one of the two eyepieces, you can adjust whether the centre of the celestial object should be in the foreground or in the background.

What causes this effect? In this context, please read the product test report in the journal Astronomy Magazine, which you can find under the “Downloads” tab on the eyepieces product page.

The set consists of two eyepieces, which can be used in a binocular attachment or binoculars with a 1.25” connection. On the eyepieces product page you will also find a video, taken on the occasion of a meeting of telescope enthusiasts.

We will continue to test the eyepiece set in detail and report on our experiences in this Astro-Blog.

The AZ Pro mount from iOptron: GoTo made easy!

July 11 2016, Stefan Taube

iOptron simply calls it “level and go”, and refers to the very simple routine for aligning the AZ Pro mount in the sky. With this latest innovation, viewing the sky with a computer controlled mount is almost as spontaneously possible as it is with a Dobsonian telescope: No need to exert yourself by going through an arduous procedure, until you can finally start observing!

iOptron Mount AZ Pro GoTo

iOptron Mount AZ Pro GoTo

Just place the AZ Pro mount down horizontally – the integrated spirit level helps you to do so – and switch it on. With the integrated GPS and the sensors, the mount will automatically recognize date, time, location and orientation. Just give the computer approximately two minutes, the mount will then move to a bright object in the sky. Then centre the object in your eyepiece. There is even no need to know the name of the object, a fact that is particularly convenient in twilight. It goes to show how quickly and simply the mount is to align to the sky! You can now choose your observation targets from a huge database, to be sought out by the mount.

With its compact form, the retractable counter weight bar and the stable aluminium housing the AZ Pro mount from iOptron is an ideal travel mount. With the integrated GPS, the “level and go” routine can be executed at any point around the globe. The mount comes with an installed lithium-ion powerpack, suitable for 10 hours running. No need to take another power supply with you, which reduces any additional cable chaos.

Another positive aspect is the smooth and quiet running of the stepper motors. Your neighbours will be grateful!

The AZ Pro has admittedly been optimized for mobile use, but is still a high quality mount, able to carry large aperture telescopes for visual observation. For photographic purposes this mount can be used for moon and planet photography.

In the field of portable, azimuthal GoTo-mounts the AZ Pro from iOptron currently meets the highest standard.

Now available: Stargate Dobsonian with 508 millimetre mirror!

June 20 2016, Stefan Taube

With Dobsonian telescopes its the size that matters! These telescopes serve the sole purpose of observation and not photography. The size of the light gathering mirror surface therefore is the decisive criterion. Dobsonian Telescopes from Skywatcher have been very popular for years. The Stargate series from Skywatcher stands for giant Dobsonians with light tube in metal truss tube design.

Telescopes with a high WOW factor!

The first model of this series was the Stargate-450P-Dobsonian, which we can currently offer for €4599.-. You save € 400.- compared with the recommended retail price!

Skywatcher Dobson telescope N 458/1900 StarGate-450P DOB

Skywatcher Dobson telescope N 458/1900 StarGate-450P DOB

New to this series is the currently added GoTo variant Stargate-450P with ynscan and its big brother: The Stargate-500P with Synscana GoTo telescope with an 0.5 meter primary mirror! In order to be able to fully utilize this big opening, you should be mobile: Two stargazers will be able to conveniently transport and assemble this giant sky eye quickly under a dark sky.

Make use of the night!

The Synscan GoTo system helps you to quickly focus on the desired object without having to search for a long time. For this purpose you can choose from more than 42,000 sky objects in the extensive Synscan database! The motors not only move to the object, they also keep it in the eyepiece. Neither of the two  Stargate series Synscan models needs to be manually guided to follow the rotation of the sky.

“Freedom-Find”-Dual-Encoder

The possibility to move quickly from one object to the next and to make large panning movements in the sky is one of the major attractions of all Dobsonian telescopes. This is also no problem with the motorized Stargate models: Simply decouple the motor from the mount with a twist and you will be able tow slew the mount by hand: This is soundless, quick and prolongs the lifetime of the powerpack. Due to the installed Encoders the alignment will not be lost by such a manual movement. Even if you have moved the telescope by hand, the integrated computer will still know to which object the mirror had been aligned.

With the Stargate series Skywatcher offers portable Dobsonian telescopes in a new dimension. Use Stargate to enter into new galaxies!

Info-graphic: Summer Highlights 2016 – All the Info at a Glance

June 13 2016, Marcus Schenk

What can you discover during the mild summer nights?  Our new info-graphic has your answers – “Summer Highlights 2016″.  A quick glance is enough to know what is happening between June and August.

u2g-infografik-himmelsfahrplan-sommer-en

If you would like to use our info-graphic on your website, please feel free to use the code below:

More info on each highlight in the graphic can be found below.  We wish you hours of observational enjoyment and fun, as well as a warm Summer!

 

June

Jupiter in the Evening Sky

Last chance to see Jupiter in the evening.  Our solar system’s biggest planet will sparkle in the western sky.  An arc second of 35″ is enough to recognized details of the planet, for example, the cloud bands and the (in)famous Great Red Spot, or Jupiter’s moons.  The planet will be visible in the evening until the end of July.

 

3rd of June – Saturn in Opposition, Awesome Rings and Ophiuchus

On the 3rd of June, Saturn will stand in opposition, being visible for the entire night.  The planet will be roughly 1.35 million km (840,000 miles) away from Earth, offering us a perfect impression.  Saturn will enthrall us with a perfect perspective of its rings at 26 degrees.  The gas giant will rise at around 9 PM and create a wonderful constellation along with Mars and Antares.

 

11th of June – Our Moon meets with Jupiter

During dusk, a look to the west will be very rewarding.  There, you will see a waxing Moon along with a shining Jupiter above to the right.  Both objects on this evening will be only 2° away from one another.  With a camera, a telephoto lens and a clear evening sky, you’ll have everything for a unique photo.

 

21st of June – Summer Solstice

The 21st of June is the longest day and shortest night of the year.  The sun will set after 9 PM (depending on your coordinates) and will rise again after 5 AM.  The night won’t be extremely dark by astronomy standards, as the sky will always appear dimly lit.  The Earth will be at its greatest distance to the Sun in its elipse and the Earth’s tilt of 23.5° will result in a very high angle of incidence.  With hotter days on the horizon, we will flock to our parks, lakes and rivers for some summer fun.

 

International Space Station Visible 

The ISS will be visible during the summer months, but will vary depending on your location.   Luckily a handy website from NASA allows you to check ISS visibility in your area.  Check it out for more info!

 

26th of June – The Moon Obscures Neptune

On the 26th of June, for those in Europe, the Moon will move in front of Neptune.  Around 1 AM, Neptune will disappear behind the lit Moon disk and will appear again on the non-illuminated side at around 1:30 AM.

 

July

4th of July – Space Probe Juno Reaches Its Destination

The space probe Juno was launched  on the 5th of August 2011 and will arrive at Jupiter after a five year trip.  The probe will take up a polar orbit in order to research Jupiters atmosphere and magnetic field.  At mission’s end in October of 2017, the probe will send itself plunging into the planet’s atmosphere, only to be crushed by the atmosphere’s massive pressure.

 

7th of July – Pluto in Opposition

Once there was a planet that was indeed only a dwarf planet.  Pluto will be especially interesting to observe on the 7th of July as it stands in opposition.  The 2,374 km large body is 4.4 million km away and will shine only at a 14.1 mag, like a tea light between the larger plants.  You will only be able to see the dwarf planet with a large telescope, but even there it won’t be able to differentiate itself from stars.  With Universe2go, however, you will be able to get a full experience of Pluto without a telescope.  You can even see its heart, which the space probe Philae discovered last year.

 

9th of July – A Lunar Meeting with Jupiter

At only 4.5° apart, the Moon will encounter Jupiter this evening on the western horizon, providing a good photo op for those looking for a unique image.

 

August

12th of August – Conjunction of Saturn, Mars and the Moon near Scorpio

Mars, Saturn and the Moon will meet up near Antares, providing an intriguing sight.  Lined up like a string of pearls on the 12th, we will find them close to Antares, the primary star of Scorpio.  Observations and images of this quartet will be fruitful to say the least!

 

12th of August – Perseid Meteor Shower

In the night of the 12th into the 13th of August, the Persied Meteor Shower will reach its peak.  Up to 100 meteors per hour will rain down and thunder through our atmosphere at an unbelievable speed of about 216,000 km/h (134,000 mph).  So, do you hold out and stay up all night or get up early?  Since the shower will peak between 10 PM and 4 AM, the choice is yours.  The Moon will disturb the night sky at the beginning, but will set after midnight, allowing us enjoy darkness in all its splendor!

We can thank the comet 109P/Swift-Tuttle for this meteor shower, which in its orbit around the sun has lost a portion of its mass.  Every year that the Earth crosses the comet’s orbit in August, the Perseids occur in our night sky.

This year, we can expect even more meteors, since the Earth has moved closer to the path of the comet.  As a result, astronomers believe we will see a greater number of meteors than in previous years.  Is that not enough reason to check it out?

 

27th of August – Conjuntion of Venus and Jupiter in the Evening 

Keep an eye on Jupiter and Venus this evening.  Both planets will race across the sky, as Venus overtakes the gas giant to the north.  Before those in Europe even see their closest encounter, both will set in the evening in the western horizon, allowing those in the western hemisphere a fantastic show!

It is best to go out with binoculars at dusk, but be sure to avoid looking into the Sun by waiting for our star to set.

Special offer: The popular SkyTracker with tripod and bag

June 6 2016, Stefan Taube

Celestial photography with digital reflex camera is gaining in popularity Why not use your excellent photo equipment to photograph the night sky? There is a vast variety of photographic mounts available for this purpose. You convert your camera to an astronomical telescope, which is then tracks the rotation of the night sky.

iOptron Mount SkyTracker tracking unit for astrophotography, white

iOptron Mount SkyTracker tracking unit for astrophotography, white

A well proven and very popular photographic mount is the SkyTracker from iOptron. Just add this solid, compact accessory to your photo equipment and you are ready for taking photos of the night sky.

We now offer you the SkyTracker as a set with all necessary accessories: Ball head, tripod and tripod bag. The bag not only provides space for the tripod, but also for the SkyTracker and further accessories.

With the SkyTracker set you save €145.- when compared with the sum of all prices per item!

We will receive the SkyTracker set at the beginning of June from iOptron, USA. Reserve your SkyTracker set now for € 494.-!

You can choose from two colour variants: black or white.

Celestial photography with the digital reflex camera (DSLR) is an economical and very mobile variant in astrophotography, which quickly gives beginners the feeling of success.

 

By the way: We also offer DSLR and other system cameras which have been specially modified for astrophotography. These cameras are more sensitive in the red spectral range and thus much better for taking photos of emission nebulae.

Astrophotography: New cameras from ZWO

May 30 2016, Stefan Taube

The cameras from ZWO, which can be recognized by their distinct red housing, have taken astrophotography by assault. Based on the big success of the low-priced planet cameras ASI-120, ZWO now extends its product range bit by bit and now also offers advanced cameras with USB 3.0 and CMOS-sensors.

We are able to offer you two new series of these cameras:

ZWO Camera ASI

ZWO Camera ASI

  • ASI-290: A very good all-purpose camera with small pixels, high image frequency and low read-out noise. The camera is equipped with the CMOS-sensor IMX290 from Sony. This chip is particularly light-sensitive because it is exposed from the back. Such sensors are elaborate in production, but now they are available to hobby astronomers for a reasonable price.
  • ASI-1600: This camera is equipped with a huge 16 megapixle CMOS-sensor with 21.9 millimetre diagonal. The sensor is normally installed in Olympus cameras. With this camera you can fill a large field of view.

All camera models are available as colour or black and white variants, but also with or without active cooling. I.e. there are four versions each for you to choose from.

Black and white cameras have the advantage of a higher sensitivity and resolution when compared with colour cameras. However, it takes a higher effort to successfully shoot colour images: You need colour filters and a fllter wheel.

A cooled camera allows for longer exposure times, because the sensor noise is suppressed. However, you need a separate electric power supply and, for long exposure times, a suitable mount with tracking control. Due to the increasingly high sensitivity of the sensors, uncooled cameras also become more and more popular for the photography of low-luminosity DeepSky objects. Beginners and casual photographers are therefore already very well equipped with the uncooled models of the ASI-290 series.

The cameras from ZWO, which can be recognized by their distinct red housing, have taken astrophotography by assault. Based on the big success of the low-priced planet cameras ASI-120, ZWO now extends its product range bit by bit and now also offers advanced cameras with USB 3.0 and CMOS-sensors.

 

Meade ETX: The camping telescope!

May 23 2016, Stefan Taube

The series ETX from Meade offers very compact travel telescopes with state-of-the-art technology. These are telescopes you would like to have with you on any journey. Especially during camping holidays we experience dark night skies, unknown to us from home. Wouldn’t is then be nice to have a small telescope with high-quality optics in your luggage?

Meade Maksutov telescope MC 90/1250 ETX-90 Observer AZ/EQ GoTo

Meade Maksutov telescope MC 90/1250 ETX-90 Observer AZ/EQ GoTo

The ETX telescopes are carried by a strong equatorial fork mount and are equipped with a modern computer control (GoTo), which makes the objects of the night sky also available for beginners. Electric power is provided by the integrated battery compartment.

The latest model of this series is the ETX-90: With its true colour representation at large focal lengths this compact reflector telescope is highly suitable for viewing the moon, the planets and also nature. With its 90 millimetre opening it is relatively big for a compact travel telescope and thus luminously strong enough to show you bright DeepSky objects.

For this instrument the handbox not only contains the GoTo control, but also the new AudioStar from Meade. AudioStar speaks to you in English through the integrated speakers and informs you about anything worth knowing with respect to the most popular celestial objects.

For even better transport of the ETX-90 the tube can be lifted out of the fork. The ETX-90 comes with a sturdy tripod with steel tube legs. The tripod can be conveniently transported in the attached bag.

If you are looking for an even more portable and reasonable telescope should decide on the model ETX-80. The telescope even fits into a transport bag. Since the ETX-80 is a refractor, there is no shading caused by a secondary mirror. With respect to its luminous intensity it is almost as good as the Maksutov. However, the colour-related fault and the small focal length of the refractor considerably impair the fun when watching moon and planets. For this reason and also because of its better tripod the ETX-90 is is far superior and really worth its money!