Binocular advice
Cost: £189 (approx. $253.50)
From: Celestron
Type: Mirrorless
Optical design: Porro prism
Objective diameter: 70mm
Magnification: 15x
Exit pupil: 4.6mm
Eye relief: 17mm
Weight: 1,575 grams
Actual field of view: 4.4 degrees
Apparent field of view: 66 degrees
Close focus: 15 metres
Construction: Centre focus, nitrogen-filled
Coatings: Fully multi-coated
Almost every amateur astronomer has some binoculars – even if they have an impressive array of telescopes as well. Binoculars have qualities that telescopes don’t: they’re instantly available, easy to use, can be pointed at any object in the sky quickly without the need for motors and give a wide field of view. They allow you to use both eyes for observing, which is far more comfortable than using just one eye. They are also comparatively low cost.
Standard everyday binoculars are versatile instruments. The workhorse specification of 10x50 – a magnification of ten and objective lenses of 50mm aperture – is an excellent compromise of usefulness for daytime viewing and night use. At night, stars that are too faint to be seen with the naked eye spring into visibility, while the larger nebulae, galaxies and star clusters become recognisable glows. Just scanning along the Milky Way on a clear night is something that even experienced observers never tire of.
Diese Geschichte stammt aus der Issue 125-Ausgabe von All About Space.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent ? Anmelden
Diese Geschichte stammt aus der Issue 125-Ausgabe von All About Space.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
Bereits Abonnent? Anmelden
LONG AGO, A LAKE ON MARS MAY HAVE BEEN SPRAWLING WITH MICROBES
Curiosity discovered manganese oxide in bedrock in a Martian region that may have been a shoreline billions of years ago
MOON TOUR HELL
Finding this fascinating crater isnt as hard as its name suggests...
THIS MONTH'S PLANETS
Most of the planets are tricky targets this month, but our guide will help you locate them
UNIVERSE BEFORE TIME
Could the existence of a mirror-image cosmos before the Big Bang solve some of the biggest mysteries in astronomy?
CLIMATE CHANGE IN THE SOLAR SYSTEM
Alongside Earth, our planetary neighbourhood is changing, but it’s not for the better…
Stars give tiny planets a gravitational 'squeeze' to strip away their atmospheres
A scientist has learned more about the violent processes that rip atmospheres away from planets, finding that squashing and squeezing by a parent star can contribute to this process.
The Milky Way's halo is filled with ‘magnetic doughnuts' as wide as 100,000 light years
The outer halo of the Milky Way is filled with magnetic fields that take the shape of vast doughnuts with diameters ranging from 12,000 to 100,000 light years, with the heart of our galaxy at their centre.
The Pentagon wants the commercial space reserve to support military satellites in orbit
The US Department of Defense is developing a plan to use the ever-growing American commercial space industry for national security purposes.
DOES A COSMIC 'GLITCH' IN GRAVITY CHALLENGE ALBERT EINSTEIN'S GREATEST THEORY?
Gravity changes once you reach a cosmic scale
DEEP SKY CHALLENGE : STELLAR TREASURES OF THE ARCHER AND SCORPION
Summer skies are stuffed full of amazing objects for your telescope - if you're prepared to stay up late
