Cheap Astronomy Laser Pointers to Buy Online for Spring and Summer 2010

Cheap Astronomy Laser Pointers to Buy Online for Spring and Summer 2010

With the weather warming up in the Northern Hemisphere, many technology and astronomy fans are getting ready to get outdoors and enhance their collections with laser pointers for astronomical stargazing. If you are new to lasers or just want to purchase a laser that will be perfect for nighttime use, it is important to know a few things about handheld technology and what to look for.

1. Laser beam color (frequency) – Lasers produce a dense beam of light in different colors (frequencies) that determine how the human eye sees color when the diode is stimulated and active. The most common and visible color of laser light is 532nm green, as it appears brightest to the human eye based on the visible light spectrum, which spans from infrared light to ultraviolet light and everything in between. A green laser pointer will provide the most visible effects for any star gazing astronomy fan, but colors such as red, blue, yellow and even purple can also provide great variety and offer some attractive visual effects as well.

2. Laser output power (mW) – Each laser pointer produces a certain amount of power, which will ultimately determine how bright or strong the beam itself will appear when activated. The lower the power, the weaker the beam will appear, and the more powerful the laser, the brighter the beam will appear, regardless of color. A medium green pointer produces 5mW of condensed light but is not that visible at night, if you want to be able to see the whole beam you will want roughly 20mW or more and if you want a burning laser you will need roughly 100mW or more.

3. Price and quality – This is probably one of the most important parts of any purchase, but like all items with new and advanced technology, one model can vary greatly from another. This is where a little research will really go a long way in making sure you are buying a laser that is worth your time and effort. Take a few minutes and look for the exact specifications of the models, reviews if any, and videos of actual users enjoying the laser. Since a cheap laser can really be just that, cheap or poorly designed, the price will need to be carefully researched as with most things you get what you pay for.

In general, you can improve your nighttime stargazing with any high-quality astronomical laser pointer, but it’s important to make sure that any inexpensive pointer you buy meets a few specific quality standards and is really what you’re looking for. Color, power output and price should be the main factors in your decision, while style and portability may be secondary, as most diodes are portable and even have a nice ‘tech’ look these days.

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