YOUR FIRST TELESCOPE: HOW TO CHOOSE

YOUR FIRST TELESCOPE: HOW TO CHOOSE

For those who are curious about astronomy or nature observation, a telescope can be a great investment. However, it is important to know all the details of these devices before making any purchase, to make sure you get the right one for your needs.

Telescopes are mainly divided into two types, according to their purpose: astronomical or terrestrial. As the name suggests, astronomical telescopes are designed to observe the sky, planets, the moon, constellations, etc., while terrestrial telescopes are used to observe nature, be it landscapes or animals.

Both types have different characteristics in their design, aperture, manufacture and more, which is essential to take into account when choosing which one to use. Generally speaking, what you should be clear about when buying a telescope is what you want to see, and from there, make your decision.

 

DIFFERENCES BETWEEN ASTRONOMICAL AND GROUND-BASED TELESCOPES

ILLUMINATION

As mentioned before, astronomical telescopes and spotting scopes are available on the market. Astronomical telescopes are mainly used to see everything related to space, and are mainly used at night. For this reason, they have large apertures to let light in, to get a better view even in low light.

ENHANCE

However, there are more aspects in which they differ. The main one is magnification: that tool that allows us to see things more closely. Naturally, we are much closer to wild animals than to stellar bodies. Therefore, astronomical telescopes are distinguished by their high magnification.

DIFFERENCES BETWEEN ASTRONOMICAL AND GROUND-BASED TELESCOPES

MOBILITY

Another differentiating factor between the two is the ease of transport. As a rule, terrestrial telescopes are much lighter and easier to move. This makes them more practical for wildlife observation.

VERSATILITY

On the other hand, terrestrial telescopes tend to be more versatile because some of them can also be used to observe planets, although not with the same quality as astronomical telescopes.

This is the opposite of the other type, which due to its general characteristics will not provide you with a good experience when observing nature.

 

ASPECTS TO TAKE INTO ACCOUNT AND MODEL RECOMMENDATIONS

LET’S TALK ABOUT MONEY

Although there are quite expensive telescopes, you can also get excellent quality for a good price. Of course, this point conditions in some cases the quality of the telescope you can find tukif.

Regarding this point, the aperture is one of the key factors. The larger the aperture, the better the quality… and that will come with a much higher price. Ideally, look for the largest aperture within your budget.

However, if you are a beginner, the minimum should be 70-80mm, while a more professional one is 150mm to 300mm.

 

IF YOU ARE ALREADY A PRO, TAKE THIS INTO ACCOUNT

In this case, you must also decide whether you want a refractor, reflector or catadioptric telescope. The latter are the ones that use both lenses and mirrors, so they generate a much sharper image, but they tend to be the most expensive.

With refracting telescopes, which use lenses to transmit light, you can see close objects (both terrestrial and in the sky, e.g. moon and planets). They are very easy to use, and require no maintenance. Reflectors, which are for viewing distant, deep-sky objects, use mirrors, and do require more maintenance. However, they are usually cheaper.

IF YOU ARE ALREADY A PRO, TAKE THIS INTO ACCOUNT

When buying an astronomical telescope, it is also important to consider a finder, which is a device that helps to search for planets or stars. In that sense, usability is important, i.e. how easily the telescope can be mounted, among other things. Also, an astronomical telescope generally does not need much movement, but a terrestrial telescope should be light and handy to move.

 

THE BRAND DOES MATTER

Among the astronomical telescopes for beginners that we recommend are: Astronomico Upchase, TNTY telescope, which is ideal for children and young people; the Bresser Solarix, which comes with a solar filter; Seben Star Sheriff, which is more professional. While among the most recommended spotting scopes are: Gosky 20-60×80, Celestron Ultima 65, Svbony SV28 and Vanguard Endeavor HD 65A.

 

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THE WEBB TELESCOPE REDISCOVERS THE UNIVERSE

THE WEBB TELESCOPE REDISCOVERS THE UNIVERSE

Since its commissioning, the incredible James Webb Telescope has allowed us to see the universe as never before. On 5 September 2022 it offered its first images to the world, demonstrating the immense capability of its infrared-sensitive technology.

Thanks to its unique configuration and location, just under 2 million kilometres away at the L2 Sun-Earth Lagrange point, it can capture images of the observable disc of Mars, spaces never before seen in such high quality detail.

Its photographs and spectra now allow scientists to study very short-term phenomena that previously seemed unattainable, such as dust storms, weather patterns and even seasonal changes.

 

THE KEY CHALLENGES

There is no doubting the immense capability that James Webb brings to modern science. However, it was not easy to arrive at this result.

To understand the issue, let’s reflect a little on our interstellar neighbours: the moon, the stars and, of course, Mars. There is no doubt that the Red Planet xxx is one of the brightest objects in our space firmament. After all, it is easy to see it even at night with no other tool than your eyes.

This presents an incredible challenge for researchers using the James Webb Telescope, as the light emanating from this celestial body is extremely high, while the original James Webb configuration is intended to capture extremely faint light from much more distant galaxies.

To circumvent the sensitivity of the James Webb and avoid “detector saturation”, special techniques had to be developed and applied in the observing process. One of the measures was, for example, to take only a part of the brightness of Mars for very short exposures. In this way, it is possible to perform the analysis.

 

THE LONE STAR

Several pictures from the James Webb Telescope have already been trending on social media. Stars, galaxies and celestial bodies are available to our eyes for the first time in incredible resolution.

However, one of the most surprising discoveries for scientists comes not from a gigantic planet or a distant galaxy but, instead, from a single, solitary star shining hundreds of light years away: Earendel.

Or shone, more precisely. After all, the fact that we can see its light right now means that millions of years ago that light was probably already extinguished.

THE LONE STAR

According to the scientists’ analysis, it is very likely that we are looking at the few remaining remnants of Population III, the first stars that emerged in the Universe after the Big Bang.

According to current knowledge of these ancient celestial bodies, they are thought to have consisted only of primordial hydrogen and helium. The reason? No other component or material existed in nature or space.
Therefore, the brightness of this lone star gives us insight into the origin of the heavier atoms that would later form as the result of nuclear reactions triggered by other celestial bodies exploding.

According to the information available so far, it is estimated that Earendel, which we see today as a small, solitary star, had a mass 100 times larger than the sun, as well as a temperature of 20 000 degrees Celsius. This is the reason for its brightness, with a slight bluish hue.

Even so, as it is not a supernova, we should not be able to see it from our position. Therefore, we have a strange and fortuitous coincidence to thank for its recording.

 

 

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RECOMMENDED ASTRONOMY BOOKS

RECOMMENDED ASTRONOMY BOOKS


We are tiny and insignificant beings when compared to the vast and immeasurable universe. For this reason, and for many other reasons, it is normal for us to feel curious about what lies beyond the limits of planet earth.

If you are one of those who is very passionate about astronomy, do not miss this list of books that you should have in your library.

 

5 ASTRONOMY BOOKS YOU NEED

1.‘THE UNIVERSE IN YOUR HAND’ – CHRISTOPHE GALFARD

Known as the modern Stephen Hawking (he was one of his best students, really), Galfard possesses a very vast insight and comprehension of our universe. Therefore, he is able to address the theoretical material that helps us understand how it works with a very accessible approach.

His book summarizes the story of the creation of the cosmos xxx with a vocabulary that even a teenager could easily assimilate. And the best thing is that he tackles everything. From the classic to what sounds like science fiction: inter-dimensional travel, black holes and adventures in space-time.

 

2.‘AT SKY SKY’ – DAVID GALADÍ-ENRÍQUEZ

The book that occupies the second place in this list stands out not only for its splendid theoretical content. But also for its visual support material.

The pen of David Galadí-Enriquez, who is currently a doctor in astrophysics, allows us to learn about the functioning of the atmosphere, the northern lights and meteorites with the photographic support of Juan Carlos Casado, famous throughout the world for his photographs of the sky .

Although it is not an easy book to read, we are sure that you will be able to find its value even if you are an amateur on the subject.

 

3. ‘PRACTICAL GUIDE FOR THE AMATEUR ASTRONOMER‘ – BOURGE-LACROUX

We think the name of this book describes itself very well. If you are one of those who are just beginning to discover the mysteries that the sky has to offer, we recommend you start here.

With a speech that combines technicalities and casual language, the author takes us on an educational journey into the interesting theoretical and practical world of astronomy.

With discursive singularity and a magnificent ability to synthesize knowledge, this book addresses everything you need to know to stop calling yourself an “amateur”: how to position a telescope, how to observe planets, what to do to be able to observe the sun, lunar and planetary photography techniques. , etc.

5 ASTRONOMY BOOKS YOU NEED

4. ‘ASTROPHOTOGRAPHY’ – THIERRY LEGAULT

If the previous books caught your attention because of their great visuals, this one will blow your brain! And what is better: it will incorporate a new hobby into your life that you can enjoy for life, only with a telescope and a reflex camera.

This guide teaches you in a didactic way the necessary techniques to photograph many elements of our wide universe. Among them: constellations, meteors, comets, eclipses, etc.

 

5. ‘THE UNIVERSE IN A CUP OF COFFEE: SIMPLE ANSWERS TO ENIGMAS OF SCIENCE AND THE COSMOS’ – JORDI PEREYRA

Those who know this book must surely still remember it. Unlike other photography guides or theoretical books, Pereyra’s work takes us through astronomy in the best style of ‘Ciencia de Sofa’, his blog on astronomy, physics, geology and other sciences.

His goal is to pose accessible, easy-to-understand answers to the biggest questions about the universe, with hilarious prose and speech. 100% recommended.

Which of these books caught your attention the most? We want to read your opinion in the comments.

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Applications to Look at the Stars in the Sky

Applications to Look at the Stars in the Sky

Good news to stargazers, locating and identifying celestial objects is much easier than it was a few years back. You would require a telescope, a clear night sky, and a telescope to identify space objects in the past. Only astronomers and passionate enthusiasts had access to these resources. Telescopes are pretty expensive. Today, you can observe the sky without needing a telescope; numerous iOS and android apps can help you watch the sky for free or for a minimal fee. Here are some applications to help you look at the stars in the sky.

 

 

5 Applications to Look at the Stars

1.SkySafari

The SkySafari is a revolutionary astronomical app that allows you to hold your phone towards the sky to identify stars, planets, constellations, and satellites. The app is available at $5 on iOS and free on Google Play Store. SkySafari has the largest database of astronomy features and events porno, including all solar system objects ever discovered; it can show you what the sky may have looked like in the past thousands of years and how it might look in the future. The app has incomparable accuracy, smooth telescope control and augmented reality mode.

 

2.Star Tracker

Applications to Look at the Stars in the Sky

The Star Tracker will show you 88 constellations, the sun, moon, planets, and more than 8 thousand deep-sky bodies in real-time. Thanks to the 3D compass in the augmented reality mode, the app can point to the position of the objects that you search. The app packs information about the twelve zodiac constellations to help you see the patterns and six famous deep-sky objects. The graphics feature on the app enhances the constellation for a better view. There is a free version of the app with limited features, but you can upgrade to the full version for $3. The no-ads version is available at $1. With the pro version, you enjoy the Time machine and dark mode features on the app.

 

3.International Space Station (ISS)

ISS app does not technically show you the stars. However, you can use it to view planets and the International Space Station itself. The app, which is free for android and iOS, always keeps track of the international space location above the earth. Once you set your location, the app can tell you how frequently you can expect to view the space station in the sky and the duration of viewing. The viewing time is quite short because the ISS travels at about 17,100 Mph. The app will also tell how long it will take for the subsequent viewing of the space station in your location.

 

4.Sky View

Look at the Stars in the Sky

The sky view app is available at $2 on android and $3 on iOS with a free lite version for both platforms. It is easy to use; you just point your gadget towards the sky and start identifying stars, planets, constellations, galaxies, and the international space station. The Sky View app has augmented reality and night mode features, which allow you to use it comfortably at any time. With the sky path feature on the app, you can track the exact location of objects at any time. Furthermore, the sky view boasts a time travel feature that lets you view how the sky looked and how it might appear in the future.

 

5.Star Walk 2

Star Walk 2 uses your smartphone’s sensors and GPS the sky’s map in real-time, including the location of planets, stars, comets, satellites, the international space station, and constellations. Do not worry if you are unsure where to start; just click the Visible Tonight feature, and you are good to go. The feature will update you on all the upcoming astronomical events and celestial bodies visible in your location. The What’s New icon will inform you of the forthcoming events, while the astronomy calendar allows you to watch the sky’s appearance on the date you specify.