>Beyond the Naked Eye

>It’s hard to say when in our lives each of us become aware of this thing called “astronomy”.  But it is safe to say that at some point on our lives, each and every one of us has that moment when we are suddenly stunned when we come face to face with the enormity of the universe that we see in the night sky.  For many of us who are city dwellers, we don’t really notice that sky up there on a routine basis.  The lights of the city do a good job of disguising the amazing display that is above all of our heads all of the time.

So it might be that once a year vacation to a camping spot or a trip to a relative’s house out in the country that we find ourselves outside when the spender of the night sky suddenly decides to put on it’s spectacular show.  If you have had that kind of moment when you were literally struck breathless by the spender the night sky can show to us, you can probably remember that exact moment when you could say little else but “wow” at what you saw.

That “Wow” moment is what astrology is all about.  For some, that wow moment becomes a passion that leads to a career studying the stars.  For a lucky few, that wow moment because an all consuming obsession that leads to them traveling to the stars in the space shuttle or on one of our early space missions.  But for most of us astrology may become a pastime or a regular hobby.  But we carry that wow moment with us for the rest of our lives and begin looking for ways to look deeper and learn more about the spectacular universe we see in the millions of stars above us each night.

To get started in learning how to observe the stars much better, there are some basic things we might need to look deeper, beyond just what we can see with the naked eye and begin to study the stars as well as enjoy them.  The first thing you need isn’t equipment at all but literature.  A good star map will show you the major constellations, the location of the key stars we use to navigate the sky and the planets that will appear larger than stars.  And if you add to that map some well done introductory materials into the hobby of astronomy, you are well on your way.

The next thing we naturally want to get is a good telescope.  You may have seen a hobbyist who is well along in their study setting up those really cool looking telescopes on a hill somewhere.  That excites the amateur astronomer in you because that must be the logical next step in the growth of your hobby.  But how to buy a good telescope can be downright confusing and intimidating.

Before you go to that big expense, it might be a better next step from the naked eye to invest in a good set of binoculars.  There are even binoculars that are suited for star gazing that will do just as good a job at giving you that extra vision you want to see just a little better the wonders of the universe.  A well designed set of binoculars also gives you much more mobility and ability to keep your “enhanced vision” at your fingertips when that amazing view just presents itself to you.

None of this precludes you from moving forward with your plans to put together an awesome telescope system.  Just be sure you get quality advice and training on how to configure your telescope to meet your needs.  Using these guidelines, you will enjoy hours of enjoyment stargazing at the phenomenal sights in the night sky that are beyond the naked eye.


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>Astronomy or Astrology?

>Have you ever finally just gave in to the temptation and read your horoscope in the newspaper on Sunday morning?  Sure, we all have. For most of us, it’s a curiosity, an amusement to see what they say our day will be like based on the sign of the zodiac that we were born under.  Sometimes we forget that this little diversion is actually part of an ancient science called astrology that has had a powerful effect on many cultures dating back to centuries before Christ.

That is not to say that astrology is a dead art today.  It is easy to find astrology advocates in every town, advertising in the newspaper and on television trying to convince us that they can tell our fortune, our future and help cure our ills by exploring the mysteries of astrology.

When you are a lover of astronomy, the confusion between astronomy and astrology by those who don’t really understand the differences can get pretty aggravating.  And in early civilizations, the two disciplines were not separate.  Astrology was just the religious side of the science of astronomy.  So what changed?

The most significant shift that set in motion the separation of the two lines of thought began in the first century when Ptolemy wrote the very first book on astronomy called the Tetrabiblos.  In it, he began to suggest that astronomy should be considered a separate science from astrology.  It was quite a revolutionary book because it also was the first scientific document to suggest that the earth was not the center of the universe and that astronomy should be focused strictly on the observation and recording of events in the cosmos.

Over the next 2000 years, we have come a long way.  Not only has science and religion completely gone their separate ways since Ptolemy but the science of astronomy makes tremendous strides every year that are so phenomenal, Ptolemy would be truly astounded.

Probably the biggest point of diversion between a student of astrology and astronomy is the belief that the position of the stars has meaning over the events on our lives.  Of course, we do know that the weather and tides and other important aspects of our lives are affected by the stars, planets and heavenly bodies, particularly the moon.  But these things are happening because of completely explainable scientific laws in motion, not because of mystical forces at work.

What can we, as devotees of astronomy conclude about the close relationship between astrology and astronomy?  Well, for sure we want to be able to explain to anyone who is confused by the similarity in the words what the differences are.  We do not want to see the two approaches to the stars and planets to become confused again.  But we should do all we can do keep that distinction clear without becoming skeptical or demeaning towards those who may still hold to the teachings of astrology.

It is important to remember that what is part of a person’s religious life has a level of sacred belief to the one holding it.  And it is not respectful to scoff at such things.  If for no other reason than out of respect for the ancient origins of astronomy, we should give courtesy who still are exploring whether astrology has any validity for them.

If we can treat each discipline with respect but maintain the separation that must exist between astrology and astronomy, there is no reason both approaches to our admiration of the galaxies cannot coexist in peace and harmony.  And for our purposes as astronomers, that harmony will allow us plenty of freedom to enjoy our quest for knowledge for many more centuries to come.  And who knows, you might still like to read the horoscope on Sunday morning every so often.


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>Astronomy Binoculars – A Great Alternative

>It seems from the moment you begin to take your love of astronomy seriously, the thing that is on your mind is what kind of telescope will you get.  And there is no question, investing in a good telescope can really enhance your enjoyment of your new passion in astronomy.  But don’t be too hasty to keep up with the big wigs in the astronomy clubs that have advanced telescopes.  There is another alternative that can give you most of the advantages of a telescope and some extra flexibility and reduced cost to boot.

That alternative is a good pair of astronomy binoculars.  Mostly we think of binoculars as the thing you use to see the football game when you have to sit in the cheap seats.  But if you do some homework and had a good grasp on what your stargazing objectives are, the advantages of astronomy binoculars over an entry level telescope can be pretty convincing.

*    As a rule, they are cheaper.  So you can get a lot of good stargazing at much less of an investment.  You can always spend more money later but for now, this may be just the solution for you.

*    There are not so many accessories.  To own and operate a telescope takes a lot of orientation to how to set up and use the device.  Beyond that, tuning it for optimum view and diagnosing it when you have problems can sometimes make the telescope more of the passion than stargazing itself.

*    It is much easier to use.  If you have not bought a telescope yet, you may have seen telescope owners going through a laborious set up and break down discipline for each use.  This is time they are not looking at the stars.  The binocular users are happily stargazing as this goes on.

*    Binoculars are lightweight and portable.  Unless you have the luxury to set up and operate an observatory from your deck, you are probably going to travel to perform your viewings.  Binoculars go with you much easier and they are more lightweight to carry to the country and use while you are there than a cumbersome telescope set up kit.

So give the binocular option some consideration.  To make the most effective choice, however, here are a few facts about astronomy binoculars that will help you evaluate which ones are best for you…

Binoculars have two lens sets, one at the end of the eyepiece and a set right next to your eyes.  The ones closest to the eye are called the ocular lenses which magnify the image (make it bigger).  The ones closest to the sky are called the objective lenses and the size of these lenses will determine how much sky you can see at once.  So anytime you are evaluating binoculars, there are two numbers associated with the set.  So if the binoculars have a rating of 15-40, that means that the ocular lenses magnify 15 times and the later number is a relative number to how much of the sky you can see.  The higher the second number, the more you can see.  The explanation is simple.  The bigger the lens, the more light it lets in.  But be aware that the bigger the second number, the larger, heavier and more cumbersome the binoculars will be.

You will have to balance these two numbers with both your budget and what you want the binoculars to do for you.  If you decide to go with a lower power binoculars, you could become frustrated with what you can see and you may have to take your eyes away from the view to get your orientation and consult the star map more often because your range of vision is so limited.

There will also be a temptation to buy a set of binoculars that have zoom functions and other features that will allow you to use it for other purposes such as hunting, whale watching or seeing the football game from the cheap seats.  While this is good economy, those functions will get in the way when you are using the binoculars for astronomy.  So if you are considering this purchase as your alternative to buying a telescope, our advice is buy binoculars made just for astronomy and don’t take them to the ball game. 


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>Asteroids

>There is a lot of exciting stuff going on in the stars above us that make astronomy so much fun.  The truth is the universe is a constantly changing, moving, some would say “living” thing because you just never know what you are going to see on any given night of stargazing.

But of the many celestial phenomenons, there is probably none as exciting as that time you see your first asteroid on the move in the heavens.  To call asteroids the “rock stars” of astronomy is simultaneously a bad joke but an accurate depiction of how astronomy fans view them.  Unlike suns, planets and moons, asteroids are on the move, ever changing and, if they appear in the night sky, exciting and dynamic.

Like rock stars, asteroids have been given their fair share of urban myth and lore.  Many have attributed the extinction of the dinosaurs to the impact of a huge asteroid on the earth.  This theory has some credibility and, if it is true, it evokes some pretty startling images and foreboding fears in the current reining species on earth, the human race.

The fact that asteroids are fast moving space debris only makes their movement and activity more interesting and exciting.  Unlike a moon, planet or star, the odds that an asteroid could hit the earth are entirely reasonable and in fact, there are many documented cases of small asteroids making it through our atmosphere and leaving some pretty impressive craters in the earth’s surface.

Popular culture has happily embraced the idea of an asteroid impact.  The idea has spawned many a science fiction story adding the idea that alien life forms may ride asteroids to our world and start a “war of the worlds” situation.  But by far, the most talked about concept that has captured the imagination and the fears of science fiction fans and the general public is of another asteroid hitting the earth that could wipe out life as allegedly happened to the dinosaurs.  In fact, the movie “Armageddon” was based on this idea and the concept that somehow mankind could avert that catastrophe with technology.

But probably the best way to calm our fears and replace science fiction with science is with understanding and knowledge.  The truth is, there has been a lot of study of asteroid activity and the serious scientific community has gained significant knowledge of these amazing celestial bodies.  A number of probes to asteroids have been conducted which have given us a wealth of information about their composition and how we might predict their behavior. 

We now know that the majority of asteroids we get to witness come from an asteroid belt that exists between Mars and Jupiter.  It is from this community of asteroids that many of the notable asteroids emerged.  Scientists have gained significant knowledge about the composition of asteroids and separated them into classes including class S which comes of the part of the belt that is closest to Mars, classes C, D and V which are classified by composition and a class called “Centaurs” whose flight patterns take them closer to Jupiter and Uranus.

Some of the probes NASA has conducted on near flying asteroids have performed some pretty amazing studies of these eccentric celestial bodies.  In 1994 the Galileo probe got within 1000 miles of the asteroid Ida and discovered that Ida actually had its own moon. 

Other probes have fired impactors into asteroids and even landed on an asteroid to produce some amazing scientific data for us.  There is much to learn about asteroids in our love of astronomy and that knowledge only makes our enjoyment of seeing them in the cosmos even more exciting.


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