Orion 15×70 Astronomy Binoculars I like these so far ..

http://www.telescope.com/Binoculars/Astronomy-Binoculars/Orion-15×70-Astronomy-Binoculars/pc/-1/c/5/sc/72/p/99637.uts#tabs

I am a advanced but not pro astronomy observer.

Best answer:

Answer by digquickly
Well, …, I’m not familiar with those particular Binoculars but I’ve heard the Orion brand of Binoculars are quite good. However, generally speaking, you do understand that, to use the those binoculars, that you will most likely need a field Trapezoid or at the very least a monopole to steady then, right?. Once you get above 50mm in objective size (unless you’re Arnold) binoculars just become to front heavy to handle without an aid to balance them. Also, if you’re going to buy 70mm you might as well get a pair of 80 mm’s instead.

Here’s a write up on how to buy binoculars. It’s written for first time buyers of 10×50′s but will apply to your 70mm’s as well. Good luck and I hope your decision works out.

— write up —
Some things you should look for in binoculars are:

1) The image quality should e consistent from edge to edge, top to bottom, and throughout the field of view … no coke bottle effect.

2) Color rendition should be exactly the same as normal vision. So avoid binoculars with Ruby tinted objectives.

3) The Image should be correct both up and down and left and right. No inverted images

4) Items (1,2,3) above should remain true through (once focused) zoom.

5) Items (1,2,3) should remain in focus through zoom in and zoom out operations.

6) The binoculars should pass the ‘cable test’ through zoom in and zoom out operations.
Cable test – find both thin vertical an horizontal cables with binoculars. As you observe the cables in up and down, and side to side, transitions from sides to side and up and down. The cables should display no chromatic distortion (red, yellow, green, or blue) on either side of the cables.

7) They should be comfortable to use and hold not bulk and difficult to handle. Anything beyond 50mm begin to be difficult to handle which is why 10×50, 16×50, and or 20×50′s are great general purpose binoculars.
At lead one or more oculars should be “focusable”

9) Both oculars should have comfortable cups for your eyes and the oculars should be at least 0.5″ in diameter (or better)

10) Focus both in and out and return to focus. The focus should “snap” in and iamges in the feild of view should have a “crisp” or sharp image.
No fuzzy images except for things very close. Far away items should be in focus. If you think of bimnoculars as being an extension of your eyes
then that is how they should work.

11) The primary objectives should be free of any marring, bubbles or grit in the glass, and should be multi-coated (bluish green in color).

12) Turn the binoculars around and (with the lens caps off) look thought the main objectives to the oculars (you may need to focus slightly. The oculars should be free of any marring, bubbles or grit in the glass.

13) Don’t buy the “straight barrel” (roof prism) type binoculars. By the traditional type (porro prism). The Porro Prism type binoculars are optically better performers.

If your binoculars fail any of these tests don’t buy them or return them immediately.

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As you look at the nighttime sky with just you eyes, you will notice small points of light and a string of stars. You might even distinguish a number of the constellations that you were taught about during your childhood. Possibly even several planets if you were familiar with their position.

The following step would be to look at the same scene through binoculars. The detail is more pronounced, you will be able to see more definition like the moons of Jupiter and actual star clouds in the Milky Way. You will see about 30x’s more of the astral bodies than with the naked eye.

If you prefer the use of solar scopes, these are great for night sky viewing. At BuyTelescopes we supply a big range including Alpen spotting scopes. Conversely, a good set of binoculars can open up the night sky drastically, even beginning with 7 x 32′s. Not only are they more cost effective, but, you will learn so much more than if you were to open up and set up a telescope with the software/ GPS ready and punch in the name you know and it locates it it.

That brings me to the final step and that is an astronomy telescope like the Lunt solar telescope. It is possible to observe all the planets, the phases and details of several planets in addition to their moons. 100′s of galaxies, and star clusters, dozens of nebulae, details of our neck of the woods in the Milky Way and other details you will not usually see. Please know, the larger the telescope, the better the light gathering functionality. For great deep sky viewing you actually need about a 4″ reflector or a 60-80mm (2.4-3.1″) refractor astronomy telescope. Take a look at our range of Baader Planetarium products at BuyTelescopes.

In conclusion, you have got a decision of which route you want to take because, to buy a telescope or binoculars can be very similar cost, for a base model telescope vs. a high end set of binoculars. Of course, as with most things in life, both of them have their own specific redeeming features. You may not need to employ a telescope for looking at an eagle 1 mile away (stability). On the other hand, you will not be able perceive the definition of the Orion nebula with your binoculars designed for bird watching (mobility and variability). At BuyTelescopes you we provide a brilliant variety of telescopes and binoculars including Losandy, Takahashi telescopes, Questar telescopes, Meade telescopes and Alpen binoculars.

Even though, cross over for each can be a gray area, it is better to stay with what you know until you really have the information to make a decision. A good recommendation would be to find your local astronomy group. You will discover the more you learn, the more you will want to learn and discover.

Best answer:

Answer by Stargazer
If it’s a choice between a cheap telescope…(not sure what “cheap” is)….or….a good pair of regular binoculars…say..10×50 power…..then..I go with the binoculars.

With a decent pair of binoculars…you can see pretty good detail on the moon…and you can see the 4 major moons of Jupiter….and….there are several astronomy charts and books out there that are dedicated to just binocular objects.

http://search.yahoo.com/search;_ylt=A0geuqaokoRLJ04APglhxrF_?p=astronomy+binocular+objects&fr=ush-mail

If the “cheap” telescope and the binoculars were of equal strength….then…the binoculars would still be better because…it’s always better to view with both eyes versus just one. You get a better depth perception for one…and it’s just better all around in my opinion.

By the way….don’t ever plan on buying a telescope from a department store no matter what you decide. They “promise” a lot…and deliver less. You would want to make the most out of your astro viewing and not get tired of it because your equipment sucks.

good luck to you,…

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Are you currently looking for a brand new pair of binoculars this year? Then, have a look at Bushnell binoculars. Acknowledged for quality, learn why Bushnell binoculars are popular the world over.

If you don’t have 0 to devote to a new set of binoculars, consider Bushnell. They have long been accepted by hunters, birders, sports enthusiasts, and theater goers as top quality optics for people on a budget. We’ll see where to get some amazing bargains on Bushnell binoculars, but to start off, let’s see why they are so well-liked.

Why Bushnell Binoculars are Popular Across the World

Recreational bird watchers and astronomy buffs really like the Bushnell PowerView 10×50. They are engineered with Bushnell’s classic durability and high quality. Insta-Focus helps make them simple to use, focusing with a single touch of your finger. Black rubber armor ensures these binoculars will sustain tough use. The Bushnell 10×50 PowerView Binoculars come with a versatile carrying case along with a functional neck strap.

For only a few dollars extra, you might check out the Bushnell PowerView 20×50. Their multi-coated optics deliver excellent clarity and brightness. The 20x magnification will take you right in to the action on the diamond or next to that black bear across the meadow. Be mindful, on the other hand, that with such high magnification jiggle will become a legitimate issue. You may have to have a tripod with these binos.

For anyone who is looking for a compact binocular that can effortlessly stow inside a day pack or purse, look no further than the Bushnell 10×32 compact binocular. This little gem gives black rubber armor, fully coated lenses and are water-resistant. They are excellent for travelers, naturalists and concertgoers who do not choose to carry around a big set of binoculars.

It is easy to get lower prices on Bushnell binoculars when you know where to look. Just find an online site that can point you to the amazing bargains that are readily available. Save money with free shipping, too.

These photos from the day are beneficial for numerous factors. Usually these images are in a extremely higher detail and therefore are taken from a telescope with a substantial level of magnification. A normal stargazer wouldnt automatically have the ability to see this object with as a lot clarity or closeness simply because he or she is probably to get unable to manage the equipment necessary for such a highresolution photograph. Some pictures with the day are taken from distinct places within the Earth. This is because specific constellations stars or comets are only visible to people on particular hemispheres at any provided time. An internet site that provides a breathtaking watch of Sirius from Australia for example can be a wonderful gift to individuals of us within the northern or western hemisphere thats unable to find out the star at all.

NASAs web site provides stunning pictures of the day that are usually unrivaled amid other internet sites. This can make ideal feeling thinking about that NASA hasnt only the very best equipment around the planet for stargazing but additionally has the spending budget essential to make these stunning photos a actuality. This website could be achieved by going to apod.nasa.gov. The apod actually stands for astronomy photo from the day. Anybody interested in beautiful astronomy photos need to do themselves a favor and refer to this site. It is unrivaled when it comes to beautiful images of the cosmos. The web site for that common Astronomy Magazine also features a picture from the day area which has some similarly breathtaking beauty. Youll be able to attain this web site by going to astronomy.com. Anybody whos considering astronomy would be doing themselves an immense favor by considering the images of the day on either NASAs or Astronomy Magazines internet sites. A lot of the pictures are unrivaled by anything at all of this earth.

Best answer:

Answer by AstroPHYSstudent
you can see a surprising amount of cool stuff with even a basic telescope (60mm scope is pretty small and good for a beginner). I would suggest getting a cheaper, small telescope to become familiar with the night sky and star gazing in general. I’ll let you know before hand though that stars are not the things that you will want to be looking at… Some of them, like Betelgeuse and VY Canis Majoris, are cool to look at because of how brilliant they are but in general, stars are pretty uneventful. You will, however, enjoy looking at the planets. With just a small 60mm telescope you will be able to see the rings around Saturn, some cloud bands on Jupiter, Mars isn’t much of a sight most of the time in most telescopes, Venus is cool to look at but just REALLY bright, Mercury is nothing special, and the others are super far away and really hard to find amongst the background stars. Some small telescopes will be able to see deep sky objects like nebulae and galaxies but you generally need a wider aperture with a wide field lens. I would definitely recommend purchasing a telescope! Download the software “Stellarium” – its free and it will show you exactly what is visible, where it is, and what it is, as viewed from wherever you are on the planet. Hope this helps, have fun star gazing!

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I recently bought my first telescope, and the starting point for me was budget. Browsing around the web it became pretty apparent very quickly that if I wanted to I could spend a lot of money on a telescope, so I set myself a budget of £200 (UK Sterling) – or rather my wife set me a budget of £200!

I knew absolutely nothing about astronomy and telescopes, so I was starting very much from scratch. Having decided on my budget I began to look at what was available for my money.

There are two main types of telescopes: refractors, which uses lenses, and reflectors, which uses mirrors. Being as a lens is more expensive to produce, refractors tend to be more expensive that reflectors.

For my budget of £200, it became apparent that if I bought a refractor, I might be a little disappointed. For this reason I decided to go for a reflector. If my budget had been larger, it may well have been a different story.

Aperture

The most important single factor when assessing how good a telescope is, is its light gathering capability, which is determined by its aperture. This is the diameter of the telescope. Looking at it very simply, a telescope with an 8″ aperture will gather more light than one with a 5″ aperture, and is therefore a better telescope.

Magnification

It is the eyepiece that, in conjunction with the focal length of the telescope, determines the magnification. The formula to use to work out the magnification is to divide the focal length of the telescope by the focal length of the eyepiece.

So, for example, a telescope with a 650mm focal length will produce a magnification of 65 when it is used with 10mm eyepiece (650 / 10 = 65).

The rule of thumb regarding the maximum magnification that can be sensibly achieved with a telescope is to double the aperture (in mm). Therefore, a telescope with a 130mm aperture will have a maximum magnification of 260 (2 x 130).

What I have come to realise in the short time I have had my telescope is that magnification really isn’t that important – getting a nice sharp, bright image is more important, and as you increase the magnification, the brightness and sharpness of the image reduces. The important thing is to experiment until you find the magnification range that works best for your telescope. Mine has a 130mm aperture and I find that magnifications around the x130 to x160 seem to give me the best results. I have tried cranking the magnification up to x260, but it is very difficult to get a good sharp image at that magnification.

However, it is useful to a have a range of eyepieces so you can use different magnifications when you’re viewing an object.

Portability

It’s also important to remember that you’ll need to be able to easily move your telescope around, assuming that you don’t have your own observatory! I keep my telescope in the house but I use it outside (as we all should). If it was too awkward to move around I think there would be a possibility that I might stop using it.

I’ve heard it said many times, but it is true, and that is that the best telescope for you is the one that you’ll use the most – there’s no point in buying a great big scope if it’s too much trouble to use it.

Best answer:

Answer by Search first before you ask it
Craters of the Moon

Moons of Jupiter

Phases of Venus

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Words 1,540

This chapter discusses telescopes in detail. Telescopes are instruments that collect light from distant sources and deliver to the observer to study far away objects. There are reflecting and reflecting telescopes. Reflecting telescopes use mirrors and refracting telescopes use lenses. Large telescopes use mirrors rather than lenses.

Prime focus is the point where incoming beam is focused and the analysis instruments may be placed. The light collected can form an image, photometer can be placed to measure the energy of light or a spectrometer may be used to study the spectrum of light. The light gathering power of a telescope depends on the collecting area. The larger the telescope the clearer the picture would be.

Angular resolution  is also important as it helps in differentiating between objects. The limitation on the resolution of a telescope is it’s defraction, this makes it impossible to focus on beam properly.

Modern telescopes have charge-couple devices instead of photographic plates. By using active and adaptive optics the limitations of defraction can be controlled to a large extent. Active optics control the environment of the telescope and adaptive optics limit the blurring image of the atmosphere.

In addition to the basic types of telescopes are the radio telescopes, which are much larger, then the reflective telescopes. They need larger collecting area and there is a lot of defraction which can be controlled through an interferometer, which helps creating sharper images.

Infrared and ultraviolet telescopes are also used and they are quite similar to optical telescopes. Radio, Infrared and ultraviolet telescopes are very important in astronomy as they allow the exploration of opaque sources, and help in studying objects that emit little or no light.