What Are Astrophotography Telescopes?

Astronomical Telescope is an important tool for observing celestial bodies. It is no exaggeration to say that without the birth and development of telescopes, there would be no modern astronomy. With the improvement and improvement of the telescope's performance in various aspects, astronomy is also experiencing a huge leap forward, which is rapidly advancing human understanding of the universe.

telescope

Astronomical Telescope is an important tool for observing celestial bodies. It is no exaggeration to say that without the birth and development of telescopes, there would be no modern astronomy. With the improvement and improvement of the telescope's performance in various aspects, astronomy is also experiencing a huge leap forward, which is rapidly advancing human understanding of the universe.

Astronomical telescopes generally have two lens barrels, the large one is the main mirror, which is used to observe the target; the small one is called the star-finder mirror, which is used to find the target, also called the sight. The eyepiece is a separate individual and is an item that determines the magnification. There will be an F value on the eyepiece. This is the focal length of the eyepiece. Dividing the F value of the main lens by the F value of the currently used eyepiece is the current magnification. Remember The magnification is standard. The limit magnification of a 6 cm telescope is about 120 times, and the maximum magnification of 8 cm is about 160 times.

Galileo telescope

In 1609,

Overview

we know,

There are usually two lens barrels on astronomical telescopes. The large one is the main mirror and is used to observe the target. The small one is called

1. The telescope is a penny for a price, and you must not try to buy a cheap stall or a small workshop manufacturer's product. Some well-known domestic telescope brands (such as Xinglin, MIDE, Boguan, Aimufu, Sirius, Jinghua,

1. Never use a telescope to watch the sun directly. To view the sun, you must use a projection method or special filtering measures, otherwise the retina will be burned and the main mirror will be damaged.

2. Don't treat the telescope as a toy. The telescope is a precision optical instrument. Use it carefully and maintain it.

3 Do nt think that you can see everything with a telescope, you can really see through a telescope

Main lens barrel

The main lens barrel is the main component for star observation.

Finder

The main lens barrel usually observes stars at tens of times or more. When looking for stars, if you use tens of times to find, because the field of view is small, the Shanghai Observatory needs to find the stars with the main lens barrel, but it is not so simple, so we use a small telescope with only a few times the magnification, and use it With the function of larger field of view, first find out the position of the star to be observed, so that the star can be directly observed at a low and medium magnification in the main lens barrel.

eyepiece

If an astronomical telescope lacks eyepieces, there is no way to see the stars. The function of the eyepiece is to magnify it. Usually a telescope should be equipped with low, medium and high magnification spectacles.

Equatorial Mount Equatorial Mount is a device that can track stars and observe them for a long time. There are many forms of the equatorial mount, and we often see the German-type equatorial mount. The equatorial mount is divided into the equatorial axis and the declination axis, the most important of which is the equatorial axis. In use, the right axis of the right ascension axis must be aligned with the north pole of the celestial sphere. After finding the star, turn on the tracking motor and lock the clutch to track the star. In order to facilitate the alignment of the right ascension axis with the North Star, Beijing Planetarium installed a small telescope in the center of the ascension axis, called a polar telescope. On the right ascension and declination axes, there are large and small fine adjustments. Their function is to find auxiliary stars.

Jingweitai

The latitude and longitude platform motor can drive the right ascension axis, find and rotate in the reverse direction at the same angular velocity as the rotation of the earth, track the stars, and keep the stars in view for a long time. In addition, you can also use the faster speed to find the stars you want to observe, and increase and decrease the Shanghai weather for astrophotography. The function of the declination tracking motor is to make adjustments and corrections when the star being observed deviates from the center of the field of view, looking for stars and astrophotography. Generally, the equatorial mount should have a right ascension motor. If you need to take astronomical images for a long time, you need both the right ascension and declination motors.

Tripod stand and tripod

The tripod stage is used to connect the equatorial mount and the lens barrel to connect the tripod. The tripod is used to support the telescope and the equatorial mount, and is used as a pillar. Small-scale equatorial ice age 3 instruments usually use tripods, and heavier equatorial instruments are single-posted.

Equatorial Mount Control Box and Power Supply

For the equatorial mount to work, a power source must be used to drive the tracking motor. Generally, the portable plum plum singing instrument must purchase dry batteries or accumulators, which are suitable for use in the wild mountainous areas. The control box of the equatorial mount is designed with many functions, so that you can observe the stars, find the stars, and engage in astrophotography.