About the problem of stargazing with astronomical telescopes. . . .

First, the so-called 525 times is just a gimmick. The maximum effective magnification of the telescope will not exceed 2 times the diameter of the telescope in millimeters. That is to say, the maximum effective magnification of the 76700 is about 150 times. The magnification exceeding this is Meaningless, the clarity and brightness will plummet, and the details will not be clear.

2. The total magnification of the telescope = the focal length of the objective lens ÷ the focal length of the eyepiece. The objective focal length of the 76700 is 700mm. Using a 4mm eyepiece has exceeded its limit. The extender is not used at all. It is just a decoration and the most useless accessory in the packaging box of a low-end telescope. The most comfortable magnification of the 76700 is 70x when paired with an eyepiece of about 10mm. In an astronomical telescope, being able to see clearly is more important than being able to magnify.

Third, before using the telescope, you must first calibrate the finderscope, use a low-power eyepiece (the eyepiece with the longest focal length) to aim at an obvious scene 1000 meters away, such as a traffic light or a billboard, and put it into the field of view center, and then adjust the three screws on the finderscope until the center of the scene in the finderscope coincides with the center of the scene in the eyepiece. In this way, when looking at stars, as long as the target is seen in the finderscope, it will also be seen in the eyepiece.

Fourth, not all celestial objects can be seen in detail with a telescope. No matter how much you magnify a star, it is just a point, only brighter. Of the planets in the solar system, only Venus, Jupiter, Saturn, and Mars (at opposition) can see round faces. Nebula galaxies can only see blurry halos under good conditions, and details and colors cannot be seen.

5. At present, the apparent diameter of Mars is too small. At most, only a small circular surface can be seen, and other than that, no details can be seen. Saturn has missed its best observation period this year. After the sun sets, Saturn is basically at the horizon. Jupiter can only be seen in the second half of the night. It rises from the due east around 1 am and is located near the east of the zenith at 4 am. It is very bright and easy to identify. Using the 76700 10mm eyepiece, you can see round and faint cloud bands. and the Galilean satellites.

6. As for wanting to set your position during the day and watch the target directly at night without searching for stars, it is impossible with your equipment. If you want to watch stars in that way, please choose one with the GOTO function. Stand.