We look at the words one by one, and we can say that none of them are reliable:

Tik Tok。 Not much to explain, if you want to hang a title, you should also hang "Mu Fu". It is really impossible to hang a "Zhihu" much better than "Tik Tok".

Astronomical telescope? What the hell is this?

Major. It is a joke to say that a 500-yuan entry-level telescope and a toy are not separated, and that a major is a major. In the eyes of an amateur with a certain degree of education, I must be able to shoot deep space at least to be a major in a broad sense.

High definition. The caliber is unknown, but it must not exceed 80 caliber. Even the products of regular manufacturers, the observation effect of ordinary people is only satisfied with the moon and the Pleiades. Other celestial bodies look at a point of a star, a sesame seed of a planet, and a hazy fog in deep space, which has no aesthetic feeling at all.

Deep space. What I'm talking about is a hazy fog, which has no aesthetic feeling.

5000 times higher than 10000. The most unreliable is this sentence. Magnification is not an important parameter of the telescope at all (because it can be randomly grouped), but it is a pit that novice Xiaobai can easily jump into. When the magnification of the telescope is too high, it will lead to dim imaging, large aberration and obvious amplification of celestial motion, which is extremely difficult to use. For experienced fans, the minimum magnification is used 95% of the time! The magnification of a public telescope will never exceed 100 times, unless it observes a single solar system target such as the moon and Jupiter.

Please ask the landlord to grasp whether such a telescope is worth buying. What should a standard-marked telescope look like?

Aperture 2. Focus 3. Optical path system 4. Equatorial instrument 5. brand

Aperture is the core of telescope, which determines the focusing ability and resolution. For telescopes with the same optical path system, the price is directly proportional to the cube of the aperture.

The focal length is complex, even a novice like the landlord can't understand it. For the first telescope, the focal length/aperture is between 8- 12.

The optical path system of the entry-level telescope has refraction and reflection, and the novice recommends refraction, which is simple to use and maintain. The advantage of reflection is cheap, and the advantage of refraction is disadvantage.

Generally speaking, the equatorial plane basically has horizon and eq 1. It is suggested to choose the latter, and the former is a toy. But also around 200 yuan.

Brand. China, a low-end industrial product, kills the existence of the world. Guan Bo, Sirius, and even the low-level Phoenix Panda are enough for novice Xiaobai to get started. If you must pursue foreign brands, Xingtelang is also an option, that is, you have to pay an extra premium of 50- 100, which is obviously made in China. If you have to import the original, the price is almost five figures. Dobson, who owns 203 pounds, won. If it is unprofessional, the force of loading will be at least three levels higher.

Having said so much, is there a word worth recommending at the end? Yes, the entry artifact is 80eq, and the price is around 800 yuan. It is highly recommended for beginners to take the first step of the three steps.

In addition, there is a suggestion that the landlord consider it, and it is best not to buy a telescope before you know the constellation. Using it requires high professional skills (much more difficult than unmanned aerial vehicles), and you can't find a second target other than the moon without spending dozens of hours (it takes about several hours to find a moon). According to the standard shown in the landlord's question, 99% of the homes are decorations.