Angle Eyepiece

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Is this telescope Good Value and what will i see with it?

$99 dollers?

Orion SkyScanner 100mm TableTop Reflector
Great beginner's telescope! Big enough to find and observe objects in the night sky, but small enough to easily store in a closet or display on a desk
A REAL telescope with 100mm parabolic primary mirror optics - no plastic lenses as found in some other telescopes made for beginners
See hundreds of craters on the Moon, detail on Jupiter and other planets when viewing from relatively bright city locations
Perfect for wide-angle, low-power viewing of the Milky Way and other deep sky objects when viewing from relatively dark skies
Collects over 200 times the amount of light your unaided eyes can!
Includes two 1.25" eyepieces: 20mm (20 power) and 10mm (40 power), and EZ Finder II reflex sight

I would like to suggest that you join a local astronomy club or astronomical society BEFORE you spend your money on a scope. There are many different kinds of scopes and what is perfect for one person is not perfect for another. Everyone has their own set of eyeballs and no two are the same. If you join a club, you can attend a few of their star parties and try out members scopes to see what works best for YOU, before you buy a scope. The members can also help you when you get your scope and show you how to get the most out of your new scope as well as to help teach you where the treasures in the sky are located. Most clubs have loaner scopes and extensive libraries that you can gather more information from too. Most clubs will have monthly membership meetings with informative presentations given by members and by guest speakers. You can really learn a lot from these clubs and an added plus is all the great new friends you make there too. Go to this site to find a club in your area. http://www.astroleague.org/societies/list
This only has clubs that belong to the National Astronomy League, so there are many more which do not appear on this list. Continue searching google if you don't see one in your area here.

There are several different kinds of telescopes and all of them have some excellent features. Refractors and Reflectors, plus Schmidt-Cassegrain, APO refractors, Mac-Cass, and many more. There are also several mounts to chose from and the mounts are just as important, if not even more important, than the scope is. All of the different scopes and mounts have some features that some people like and do not like. No two eyeballs are the same and the perfect scope for one person might be completely wrong for another person.

There is no one scope that is "better" than another ---except for the junk scopes out there which are all just a waste of money. Never, ever buy from Walmart, Costco, Target, or any other discount store like that. Junk scopes are flooded into the market from those stores. You will be buying nothing but bad optics and plastic.

If you are new at this, then stay away from anything used from any site. If you don't know what you are buying and who you are buying from you will most likely be getting someone else's headache---with no warranty either. Some great deals on used equipment are out there, by people who know how to use and take care of scopes, but if you don't know what you are doing, you might be spending a lot of money on worthless junk. One improper cleaning can destroy a scope. Buyer Beware.

I recommend: http://oriontelescopes.com/

Orion is the very best for value and for customer service too. I have 3 of their scopes and I will only buy from them from now on. My first scope was a manual controlled scope and I am very glad that it was because it forced me to learn where things are in the night skies. Go-To type scopes can be frustrating to use. If you do not have them aligned exactly perfect, they do not find the targets. If you are a beginner, you will be frustrated unless you spring for a GPS Go-To. An object locator is just that---it will locate objects for you (must be aligned first) but an object locator is not a tracking motor. It will not keep the scope on the target.

The Orion site has some excellent diagrams and explanations of all types of scopes and mounts.

Things to consider are size--can the user lift and transport the scope to the viewing site easily? Does it fit in your car? If not, then it will gather dust in a closet. I recommend a carrying case too so it is protected in storage and transport. Can the viewer reach all the knobs and buttons? I have a long tube large manual refractor and it is very difficult for me to reach the knobs when I am pointed to Zenith. I am not a tall person.

Take your time in making your decision.

Some people will suggest that you purchase binoculars. Not a bad idea but don't buy anything less than 10x50 and you must have a tripod too or you will not be happy with your astronomical views because they will be too shaky from your movements. Even your pulse will make them shake. Personally, I prefer a scope to binos because if binoculars are not aligned properly at the factory, then you get double images and distortions that can't be fixed. Most of the cheaper binoculars are not properly aligned. That is not as important for terrestial viewing, but it is a killer for astronomical viewing. Binos can also be bumped out of alignment and become useless for astronomy.

When you buy, go Orion and you wont be disappointed. Don't try to learn everything all at once or you will be overwhelmed and discouraged. Patience is the key to Astronomy.

You will need a good star chart program too.
http://www.stellarium.org/
This is great freeware that you can download. Tell it where you are and it will tell you what you see. Ask it where something is and it will show you.

I wish you all the best! Enjoy!

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Brix Refractometers

You often hear the term brix and brix refractometer when testing samples for sugar content.  Just what is a refractometer?  A refractometer is an instrument that measures the refraction of light through a substance.  The refractive index becomes higher in a substance of higher concentration.

A refractometer has a wide variety of uses such as measuring sugar concentrations and liquid concentrations.  Refractometers are sometimes called “Sugar concentration meters” or “Density meters” depending on the application.

Brix and refractive index are common measurement scales for refractometers.  A refractometer that measures brix is referred to as a Brix Refractometer.   When measuring solutions that have multiple ingredients the Brix value equals the total concentration of dissolved solids.

About the Brix (%) Scale
Brix (%) shows the concentration percentage of the soluble solids content in a sample (water solution).  The soluble solids content is the total of all the solids dissolved in the water, including sugar, salts, protein, acids, etc., and the measurement reading is the sum total of these.  Basically, Brix (%) is the number of grams of cane sugar contained in 100g of cane sugar solution.  When measuring a sugar solution, Brix (%) should perfectly match the actual concentration. With solutions containing other components, especially when one wants to know the exact concentration, a conversion chart is necessary.

Digital versus Analog Brix refractometers

Brix refractometers are available in hand-held (analogue) or digital models.  Hand held units are read by putting a drop of sample on the prism, closing the daylight plate and then reading the scale through an eyepiece as the instrument is held up to your eye.  A hand-held/analogue unit determines the refractive index or brix by use of the “Transparent System” which measures light as it passes through the sample and the prism.  A low concentration sample has a larger angle of refraction so the boundary line falls on the lower part of the scale, whereas a high concentration sample has a small angle of refraction so the boundary line appears in the upper part of the scale.

Digital Brix refractometers use the “Reflected light system.  When you put a sample on the prism and press the Start button, the light that is transmitted from under the sample will travel and refract in multiple directions.  The angle of reflection is proportional to the refractive index of the sample, and the reflected light is measured by a sensor and converted into the refractive index or brix readout.

Because of their versatility, brix refractometers are used widely to test sugar content in fruit, vegetables, wine and other food products.

About the Author

National Microscope Exchange has been in business since 1991, selling and servicing brix refractometer, refractometers and microscopes. The service staff has 30 years of experience with microscopes, and is the authorized United States service facility for Atago brand refractometers, brix refractometers .

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