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Anonymous users2024-02-12If you want to see Saturn, you need to have a lens with a focal length of at least 36x.
A telescope is a delicate instrument, and even the slightest shaking can cause inaccurate observations.
It's not difficult to build a telescope, but if the telescope is not precise enough, it will directly affect your observation effect and observation time.
So if you have a lot of energy and enough time, it's still okay to do a practice on your own.
If you are a student or an office worker, I would suggest you give up this dream. Try to get back to the normal trajectory of life.
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Anonymous users2024-02-11Astronomical telescopes are generally optical lenses, if you make them yourself, the cost is not low, it is recommended to buy a low-grade introductory study, the entry-level is about 300, Saturn's rings and the moon can be seen, I hope it can help you.
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Anonymous users2024-02-10The tutorial of making a homemade astronomical telescope is as follows:
1. Choose a convex lens with a focal length of 30 to 50 mm as the eyepiece, which can be replaced by a magnifying glass for repairing clocks. Use a convex lens with a focal length of about 1 meter as an objective, which can be replaced by 100-degree presbyoptic spectacle lenses.
2. Determine the focal length of the convex lens to determine the length of the lens barrel. Place the objective lens and eyepiece facing the sun respectively, put a piece of white cardboard on the other side of the lens, adjust the distance between the paper and the lens, so that the sun is clearly imaged on the white cardboard, and measure the distance between the lens and the elimination paper with a ruler is the focal length of the lens.
3. The lens barrel is made of yellow board paper. The entire tube is divided into two sections: the objective tube and the eyepiece tube.
The diameter of the objective tube is approximately equal to the diameter of the objective lens and the length is approximately equal to the focal length of the objective. The outer diameter of the eyepiece tube is slightly smaller than the inner diameter of the objective tube, so that the eyepiece tube can be inserted into the objective lens to take the imitation tube, and the focal length can be adjusted back and forth. The inner diameter of the eyepiece barrel is approximately equal to the diameter of the eyepiece lens and is 100 mm longer than the eyepiece focal length.
The barrel is made by cutting the yellow board paper into strips of paper 70 to 80 mm wide. Find a tube with a diameter equal to the diameter of the lens as the core. Wrap the yellow board paper strip around the core, one by one, without overlapping or gaping, and the two ends of the paper strip and the joint can be connected with glued kraft paper.
After the first layer is rolled, glue is applied to the outside of the yellow cardboard, and then the second layer is rolled in the opposite direction to the first layer.
After rolling, then apply glue and roll the third layer, the direction of winding is opposite to the second layer, generally three layers can be wound, the outermost layer of kraft paper is pasted, the core is removed, and it is placed vertically indoors to dry. After drying, the inner layer of the lens barrel is blackened with black ink to eliminate the influence of stray light on observation.
4. Install the lens in the lens barrel, so that the main optical axis of the objective lens and eyepiece is on the center line of the lens tube. The lens diameter is smaller than the inner diameter of the lens barrel can be installed according to Figure 19-4a, and the lens diameter is equal to the inner diameter of the lens barrel according to the way B in the figure.
After the lens is installed, the eyepiece tube can be inserted into the objective lens barrel, aimed at the distant light with the eye, adjust the front and rear positions of the program lens and the objective lens, so that the distant light falls on the field of view seen by the telescope**, which indicates that the main optical axis of the eyepiece falls on the center line of the lens tube, otherwise the position of the eyepiece needs to be adjusted appropriately until it meets the requirements.
5. Install the bracket on the lens tube, the bracket can be a movable tripod or other forms, but it must make the lens barrel very stable when rotating. The bracket should be installed at the center of gravity of the telescope tube. There should be enough friction at the place of connection so that the telescope can stay in any position and be stable.
Hello Beginners mostly choose refraction and maca reflection is not recommended to use Sky Wolf Sailing, Xingtron 80eq, Boguan 80, Boguan Marca, Xinda 80, Xinda Marca are all great Beginners are very practical! I've been playing with equipment for a long time, and it's been one step at a time, and my first astronomical telescope was the Changge of the Celestial Wolf.
The pole is an equatorial mount.
Buy an 80eq 80eq parameter: >>>More
**Proportional to the square of the aperture (i.e., the area of the primary mirror). If you have money, you can see details such as the spiral arm of the extragalactic galaxy with an aperture of more than 200mm, and a spot of light below 200mm. The same is true for nebulae, the stars are one point anyway, even with Hubble, but large aperture can distinguish more binary stars, polyconjunctions. >>>More
First of all, you have to know what you want to see, the planet Deep Space Hoshino? >>>More
I said, don't you want your own eyes, as long as the telescope is not standardized, the impact on the eyesight is great, not to mention the astronomical telescope, I advise you to buy a regular one, you can go to Wuhan Rongcheng Technology that telescope ** to see, how to say that it is still the most important thing in your body, not to mention whether there are materials, and the materials are not standardized, it is very difficult to make alone, it is a fine job, otherwise why would the telescope sell so expensive.