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Anonymous users2024-02-07**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.
star clusters, etc. Pay attention to the limit magnitude of your telescope. For example, if you look at a Messier object of magnitude 10, you will definitely not see anything.
It's better to be 5 degrees bigger, and even the brightness of the M31 in the city with serious light damage is invisible. It is recommended that professional-level personnel use APO above 200mm to go to the suburbs for observation, otherwise you will be disappointed.
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Anonymous users2024-02-06Ordinary telescopes can't see any beautiful celestial objects, and nebulae and galaxies are only dim. Only with the use of photography can we have a better effect.
In the same way, the planets should not be too hopeful, it would be nice to see Jupiter's Great Red Spot, the exact size depends on his angular magnification, but not the bigger the better. The quality of a telescope is generally determined by its aperture.
If you are using the moon, you can see the crater with normal binoculars, but you can see it more clearly with a good telescope.
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Anonymous users2024-02-05So what the hell are you going to see? The observation target is not a nebula, an extragalactic galaxy. Jump to Jupiter, Saturn, and the Moon in one fell swoop.
You want to recognize the constellations. Then it is advisable to buy binoculars. 7*50 is pretty good.
If you want to take a closer look at a certain star, it's better to buy a heavenly lookout.
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Anonymous users2024-02-04What kind of telescope are you talking about?
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Anonymous users2024-02-03Mine is the Boguan Trailblazer 60 700 with 3 eyepieces which are SR4mm, H20mm, H10mm. What does it all mean?
Answer: First of all, we need to know that Boguan Trailblazer 60 700, 700 means the focal length of the primary mirror is 700 mm, 60 means the aperture is 60 mm, and there are 3 eyepieces in it are SR4mm, H20mm, H10mm, these are the eyepiece focal length.
Telescope magnification = primary mirror focal length eyepiece focal length.
H10mm indicates that the eyepiece focal length is 10mm.
H20mm indicates that the eyepiece focal length is 20mm.
H4mm indicates that the eyepiece focal length is 4mm.
If you put H10mm on the telescope, then the focal length of the primary mirror is 700 mm, and the focal length of the eyepiece is 10 mm, which is 700 10 = 70 times, and the magnification of the telescope is 70 times!
If you put h4mm on the telescope, then the focal length of the primary mirror is 700 mm, and the focal length of the eyepiece is 4 mm, which is 700 4 = 175 times, and the magnification of the telescope is 175 times!
I'm talking about the telescope eyepiece question you asked above! ~~
By the way, focusing with a high-powered telescope is not easy!
Your second question, there are two possibilities:
1.It should be that the focus is not right.
2.If you are nearsighted, don't wear glasses when you see with a telescope!
The third question you ask may be that your magnification is too large or crooked.
It's so hard! ~~
Typing for a long time!
And I hope my efforts will help you!
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
First of all, you have to know what you want to see, the planet Deep Space Hoshino? >>>More
1. Model selection.
There are many criteria for model selection, including aperture, focal length, focal ratio, magnification, coating, finderscope, equatorial mount and other parameters. The various parameters are dazzling, for beginners, don't be afraid, we can grasp the main contradictions: one is the focal length, and the other is the caliber. >>>More
Friend, after reading the ** you sent, I can tell you that the effect of these pictures is not reached, and it is not enough to see only a small bright spot, but it is almost, you can still vaguely see that there are two small edges and corners next to the stars, which is a graphic halo, but it is impossible to distinguish that it is a ring, such a telescope can only be used for sightseeing, at most you can see the lunar crater, if your main purpose is astronomical observation, such a telescope you will regret when you buy it! Break a leg!