In general, a high-quality 4-inch refractor performs nearly as well as a 5-inch reflector or catadioptric in showing deep-sky objects, and it may even perform somewhat better at showing planets. Refractors account for the vast majority of telescopes with apertures of 80 mm or smaller.
- A refractor of 70mm (2.7″) focal length is an excellent starting telescope. 70mm is the most common aperture size found in amateur telescopes, and it is also the smallest. A refractor of 70mm focal length is ideal for studying the moon and planets. With a high-power eyepiece or a Barlow lens, you can see the craters on the moon as well as some planetary characteristics such as Saturn’s rings.
- 1 What is a good magnification for a telescope to see planets?
- 2 What can I see with a 90mm refractor telescope?
- 3 Which is better 60mm or 70mm telescope?
- 4 What mm is best for viewing planets?
- 5 What can you see with a 100mm telescope?
- 6 How good is a 70mm telescope?
- 7 Is a 90mm refractor good?
- 8 What can you see with a 4 inch refractor?
- 9 What can you see with 80 mm telescope?
- 10 What can you see with a 120mm refractor telescope?
- 11 What can I see with a 60mm refractor telescope?
- 12 What planets can you see with 70mm telescope?
- 13 Which is better a refractor or reflector telescope?
- 14 What is the difference between a 10mm and 20mm telescope lens?
- 15 How big of a telescope do I need to see Saturn?
What is a good magnification for a telescope to see planets?
Planetary watchers with years of experience employ 20x to 30x magnification per inch of aperture to view the most planetary detail. Double-star observers can magnify objects up to 50 times per inch (which corresponds to an exit pupil of 12 mm). Beyond that, the vision is hampered by the magnifying power of the telescope and the limits of the human eye.
What can I see with a 90mm refractor telescope?
A 90mm telescope will provide you with a clear view of Saturn and its rings, as well as Uranus, Neptune, and Jupiter, which will be visible with its Great Red Spot. With a 90mm telescope, you can also expect to view stars with a stellar magnitude of 12 or higher.
Which is better 60mm or 70mm telescope?
Many amateur astronomers, however, believe that a 70 mm refractor telescope (which collects 36 percent more light than a 60mm telescope) is the very minimum size for a decent quality novice refractor telescope (despite the fact that it costs more). In order to observe brilliant objects such as lunar features, planets, star clusters, and bright double stars, a dark sky is acceptable.
What mm is best for viewing planets?
Because the focal length of the telescope is 900mm, a 4.5mm eyepiece would be perfect for achieving the highest possible practical magnification with the telescope. One of the most appealing aspects of planetary viewing or imaging is that, since the objects are so bright, it is possible to do it almost everywhere, regardless of the presence of light pollution.
What can you see with a 100mm telescope?
To What Can You Look Forward When Using 100mm Telescopes? (With Illustrations)
- When using a 100mm telescope, the greatest magnitude achieved is 13.6. As a point of comparison, the Moon has a magnitude of -12.74 and Mars has a magnitude of -2.6. The Moon is a celestial body. The Moon appears spectacularly in these telescopes, as do Mars, Venus, Jupiter, Saturn, Neptune, Pluto, and the Dwarf Planets.
- Mercury is also visible with these telescopes.
How good is a 70mm telescope?
It is quite easy to observe every planet in the Solar System using a telescope of 70mm aperture. On the Moon, you will be able to get a close look at the surface and easily discern the majority of its distinguishable features and craters. Mars is going to look fantastic.
Is a 90mm refractor good?
The Orion Astroview 90mm refractor is an excellent choice for beginning astronomers who want to make a significant investment in their first telescope. There are certain flaws, but this reasonably priced telescope has the laser-sharp optics that refractors are known for and is great for getting your first glimpses of the Moon, planets, and constellations.
What can you see with a 4 inch refractor?
A 4-inch refractor, for instance, is an excellent scope for viewing planets, the Moon, and double stars. I know this because I possess one, and I wouldn’t part with it for anything, even if it were free. In contrast, deep-sky objects like as nebulae, star clusters, and galaxies are a little too tiny to be seen via a scope of this size.
What can you see with 80 mm telescope?
Large deep-sky objects may be captured with ease because to the 80mm objective lens and short 400mm (f/5.0) focal length, which makes it an excellent choice for wide-field photography. With this telescope, you’ll be able to see stunning star clusters, wispy nebulae, and huge galaxies, but it also performs well when observing things inside our own solar system.
What can you see with a 120mm refractor telescope?
Taking in broad swathes of the cosmos, the telescope’s modest 400mm (f/5.0) focal length and 80mm objective lens make it excellent for photographing huge deep-sky objects. With this telescope, you’ll be able to see stunning star clusters, wispy nebulae, and huge galaxies, but it also performs well when it comes to observing things within our own galaxy.
What can I see with a 60mm refractor telescope?
This little 60mm telescope gathers enough light to allow you to see Jupiter, Saturn, the Orion Nebula, craters on the Moon, and other objects in the night sky. You’ll also be prepared to see passing comets and other astronomical occurrences such as the “”Blood Moon”” with the Zhumell 60mm AZ Refractor Telescope.
What planets can you see with 70mm telescope?
Using a 70mm telescope, you can plainly see the bright bands and belts of Jupiter’s planet, as well as its four major moons, and the rings of Saturn, which are visible in their entirety. Mars, Venus, and Mercury are also visible with a tiny telescope, although they are highly hesitant to give up any detail due to the overpowering brightness of their surroundings.
Which is better a refractor or reflector telescope?
If you are interested in astrophotography, getting a refractor is a better alternative because of its unique optic design, which allows you to capture deep space objects such as galaxies and nebulae, rather than an amateur telescope. A reflector telescope is an excellent choice if you are interested in brighter astronomical objects such as the Moon or planets, or if you are a novice.
What is the difference between a 10mm and 20mm telescope lens?
The focal length of an eyepiece is the most crucial feature to consider. The result is that a smaller number on an eyepiece corresponds to a greater magnifying power. A 10mm eyepiece would offer two times the magnification of a 20mm eyepiece, and vice versa. Moreover, it implies that the same eyepiece provides variable magnifications when used with different scopes.
How big of a telescope do I need to see Saturn?
If you use even the tiniest telescope at 25x [25 times the magnification], you should be able to see Saturn’s rings. A decent 3-inch scope at 50x [50 times magnification] can reveal them as a distinct structure that is completely isolated from the orb of the planet on all sides. Would you want to view Saturn’s rings? First and foremost, you must locate Saturn in the sky.