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Beijing Galaxy Telescope Answer:
The gap between astronomical telescopes is very large, and our ordinary junior astronomy enthusiasts can choose non-professional mirrors (professional mirrors are very expensive, and they are generally used for professional observation). **In the 1000-2000 yuan or so low-end astronomical telescope can be, of course, if you are very passionate about astronomy, for the observation effect of high requirements, you must choose the high-end telescope, refraction and reflection have their own advantages and disadvantages, mainly depending on what you want to observe, choose the best one for yourself; If you are looking at the scenery and stargazing, it is best to choose a refractive and reflective mirror, and some mirrors do not have a positive eyepiece.
The refractive aperture is relatively small, the focal length is relatively long, and the realization multiple is relatively high, which is more suitable for seeing the single planet and details, but it is easy to maintain, simple to operate, and the low-end refractor is relatively cheap, which is more suitable for beginners.
The reflective type has a large aperture, a short focal length, and a relatively low realization multiple, which is more suitable for seeing a large area of starry sky and a large observation field, but it needs to be coated once every five years or so.
The realization multiples mentioned above are relatively speaking, the magnification of astronomical telescopes is directly related to the eyepieces, and the eyepieces that are standard with each model are different and cannot be generalized. For beginner astronomy enthusiasts, it is still recommended to choose the refractive type.
For entry-level astronomical telescopes, the Centron 90EQ (refractive type) and 130EQ (reflective type) are both good choices.
90EQ This can see the crater on the surface of the moon, can see Saturn, Jupiter, Jupiter moons, etc., can also view the scenery, can see the trademark of one or two kilometers of air conditioning, this basic configuration is very good, the imaging effect is also great, ** at about 1600 yuan.
130EQ can see the craters on the surface of the moon, Saturn's rings, Jupiter, Jupiter's cloud belts, Jupiter's moons, etc., and 130EQ is basically a civilian astronomical telescope that can shoot nebulae with the lowest aperture requirements after being connected to the camera. **Around 1500 RMB. The relative aperture of 130EQ is large, and the observation field is large.
You can go to the Galaxy Telescope Knowledge Area to see, you can directly search for "Galaxy Telescope", where there is a lot of relevant knowledge about the purchase, maintenance and use of telescopes
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First look for the information of the microlight telescope on it, choose a good brand (shop around), and then order it on ** or something**. It is said that a telescope should not only find a magnification of about a large magnification, because if the magnification is too large, you will not be able to see clearly with a slight shake of your hand.
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Boguan traveler 10 * 50, OK, it is estimated that 300 can be done, novices are OK, if the budget is high, it is recommended to buy a foreign one, domestic is not very good.
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1), the telescope at night as long as there is light, can see the object, if you want to see the object in the environment without light, you have to use infrared, heat source telescope, 500 yuan conservative estimate enough to buy a few screws above.
2) If the budget is within 500 yuan, the objective lens will be relatively small, generally below 6 cm, the size of the objective lens is directly related to the magnification of magnification, 6 cm to see the planet will be very small, such as Saturn, may be smaller than soybeans, I now use Xing Tran 80EQ, the objective lens is 8 cm, look at Saturn is about the size of soybeans, ** in about 900 yuan, refractor, 3) The size of the objective lens is directly related to the height of **.
4) There is also a 127mm objective lens, reflective, **1500 yuan, I have seen it at a friend, the effect is still good, but the maintenance of the reflective type is more troublesome.
5) Specifically, you can search for various brands, but it should be noted that businesses like to exaggerate publicity, such as magnification, they advertise theoretical magnification, and the theoretical magnification is meaningless, such as 80EQ, and the theoretical magnification is 720 times when promoting, in fact, it is the clearest at about 160 times, and the maximum magnification is just a blank expanse, and nothing can be seen.
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Generally, more than 2000 is easy to use.
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Beijing Galaxy Telescope will answer for you:
Astronomical telescopes are divided into three types based on different imaging principles: refraction, reflection and refraction. For beginners, it is best to choose the refraction type, it is very convenient to operate the spine and maintain, simple, ** is also relatively cheap, like Xing Tran 50 or 60 az can be, ** is also about 500 yuan, but the relative observation effect is not too good, it is a very primary astronomical telescope, if the budget can be increased, you can consider Xing Tran 80EQ, this is very cost-effective, for beginners, there is no problem in all aspects of performance, this can see the surface of the moon ring blind hollow mountain, You can see Saturn, Jupiter, Jupiter's moons, etc., and you can also view the scenery, and you can see the trademark of the air conditioner for one or two kilometers.
**Around $850.
You can go to the Galaxy Telescope Knowledge Zone to see the socks blind, and you can directly search for "Galaxy Telescope", where there is a lot of relevant knowledge about the purchase, maintenance and use of telescopes.
200 yuan can buy a phoenix 90060 But for the quality compared to the big brands can not be compared, then again, you only spend 200 yuan You can buy a most entry-level astronomical telescope The cost performance is already very high For other big brands 200 yuan, that is, an equatorial mount or a good tripod. >>>More
Beijing Galaxy Telescope Answer:
Your standards and requirements, choose Xingtron 80EQ is the most suitable, and the cost performance is very high, about 860 yuan. >>>More
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Nokia 6681, the machine is a classic model of Nokia, even when the N70 is listed, it is still a classic, it is the first Symbian OS model on the market in China, the resolution is 176 208, the screen material is TFT, it is a smart phone, the CPU flat rate is 220 Hz, the advantage of CPU is very obvious on other Nokia smart phones, at the same time it has 1.3 million pixels, supports a maximum of 512 megabytes of MMC memory card expansion, it is a Nokia S60 model, The software is rich in extensions, whether it is listening**, watching movies or playing games, it can make you very handy. **Now it's down to 2800.