Quick Answer: Is 70mm Aperture Good?

How powerful does a telescope have to be to see the rings of Saturn?

Viewing Saturn’s Rings The rings of Saturn should be visible in even the smallest telescope at 25x.

A good 3-inch scope at 50x can show them as a separate structure detached on all sides from the ball of the planet..

How can I make my telescope more powerful?

You can do that by inserting a Barlow lens in front of the eyepiece. A Barlow lens is a diverging lens, that is to say, this type of lens causes light rays to spread out. When used in a telescope, a Barlow lens increases the telescope’s focal length, thus, magnifying the image.

Is 114mm aperture good?

All in all, a 114mm scope is a decent starter scope. You can use it for astrophotography if the scope is on a stable and well guided mount but, you won’t be able to do great things with it. It certainly will wet your feet and get you started on a great hobby.

What is a good aperture size for a telescope?

80 mm to 300 mmA good backyard telescope for us amateur stargazers has an aperture of 80 mm to 300 mm (3.15” to 12”) or more. Some big billion-dollar professional telescopes have mirrors with an aperture of 10 meters (400 inches), about the size of a small trout pond.

How strong of a telescope do I need?

A useful rule of thumb is that the maximum magnification your telescope can handle is around 50 times the telescope’s aperture in inches. Any higher and the image gets too dim and blurry. So, a 6 inch scope can magnify up to 300x, while an 8 inch scope can magnify 400x.

What magnification do I need to see the rings of Saturn?

Saturn’s rings should be visible in even the smallest telescope at a magnification of 25 times. A good 3-inch scope at 50x magnification will show the rings as distinctly separate from the ball of the planet. The rings are currently tilted about 19° from our line of sight, less than in recent years.

What planets will be visible in 2020?

Mercury, Jupiter and Saturn are in the sky at dusk throughout September 2020, with Mercury hard to view from northerly latitudes. Bright Mars rises in the east in the early evening. Brilliant Venus rides high in the east in the hours before sunrise. Try Stellarium for a precise view of the planets from your location.

Which eyepiece is best for viewing planets?

The focal length of the telescope is 900mm, so to achieve the maximum useful magnification, then a 4.5mm eyepiece would be ideal. One of the best parts about planetary viewing or imaging is that since the objects are so bright, you can do it just about anywhere regardless of light pollution.

How big of a telescope do I need to see the flag on the moon?

around 200 metersThe flag on the moon is 125cm (4 feet) long. You would require a telescope around 200 meters in diameter to see it.

How much magnification do you need to see planets?

Experienced planetary observers use 20x to 30x per inch of aperture to see the most planetary detail. Double-star observers go higher, up to 50x per inch (which corresponds to a ½-mm exit pupil). Beyond this, telescope magnification power and eye limitations degrade the view.

Which telescope lens is stronger 10mm or 20mm?

A 10mm eyepiece would provide twice as much magnification as a 20mm eyepiece. It also means that the same eyepiece gives different magnifications on different scopes. A 10mm eyepiece would be low power on a short-focal-length scope but high power on a long-focal-length scope.

How do you know if a telescope is good?

As a rule of thumb, your telescope should have at least 2.8 inches (70 mm) aperture — and preferably more. Dobsonian telescopes, which are reflectors with a simple mount, provide lots of aperture at relatively low cost. A larger aperture lets you see fainter objects and finer detail than a smaller one can.