CELESTRON 90SLT

Getaway (South Africa) - - Gear -

R10 999, glagen­cies.co.za

I didn’t truly grasp how vast the night sky is un­til I tried to pick out par­tic­u­lar stars with a tele­scope. If you’re only slightly off, you end up be­ing way off! The 90SLT com­bats this prob­lem with a built-in com­puter that au­to­mat­i­cally moves the tele­scope by it­self to take you to the stars you want to see (it can lo­cate more than 4 000 ce­les­tial ob­jects). The tricky part is ini­tially align­ing the tele­scope with any three bright ce­les­tial ob­jects (you don’t need to know what they are). This set-up takes some prac­tice (and drains bat­ter­ies quickly, so recharge­able ones are rec­om­mended), but it does get eas­ier af­ter a few at­tempts. The mo­torised mount then tracks the object across the sky, en­sur­ing you can keep your eye on some­thing over a long pe­riod as it moves. The aper­ture is 90mm, which means the clar­ity is not as good as the Lightbridge’s, but for lo­cat­ing ob­jects in the sky there’s no con­test.

TIP When it comes to buying a tele­scope, don’t skimp on qual­ity. Look for two things: a sturdy mount and high-qual­ity op­tics.

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