What to See with Your New Telescope

Waxing moon

The waxing Moon just before first-quarter phase, as it appears in an amateur telescope magnified about 40 times. The Moon changes phase from night to night, revealing new features every step of the way. The Moon will next be at this particular phase, with the terminator running almost down the middle, on January 15, 2016.

This gift-giving season maybe you got a shiny new telescope to call your own. Congratulations — you're on your way to discovering many amazing far things in the night sky. Whether it's a long, sleek tube or a compact marvel of computerized wizardry, every new telescope surely has an owner itching to try it out.

"Here are three important tips for getting started," advises Alan MacRobert, a senior editor at Sky & Telescope magazine.

"First, get your scope all set up indoors, read the instructions, and get to know how it works — how it moves, how to change eyepieces, and so on — in warmth and comfort.

"Second, take it out in the daytime and get familiar with how it works on distant scenes — treetops, buildings — to get a good sense of what it actually does. For instance, you'll find that its lowest magnification gives the brightest, sharpest, and widest views, and with the least amount of wiggles. It's also much easier to find what you're trying to aim at using the telescope's lowest power. So that's what you'll always want to start off with. Switch to a higher power after you've found your target, got it centered, and had a good first look.

"Also, if the telescope has a little finderscope on the side, daytime is the easiest time to align the finderscope (using its adjustment screws), so that it points at the same distant treetop as the main telescope. Don't try to figure out unfamiliar knobs, settings, and adjustments for the first time in the dark.

"Third," he adds, "be patient. Spend time with each sky object you're able to find, and really get to know it." Too many first-time telescope users expect Hubble-like brightness and color in the eyepiece — when in fact most astronomical objects are very dim to the human eye. And our night vision sees almost everything as shades of gray. Much of what the universe has to offer is subtle, and of course extremely far away.

On the other hand, the Moon and planets are bright and easy to find. These make excellent first targets for new telescopic observers. Sky & Telescope's This Week's Sky at a Glance always has suggestions for both telescope and naked-eye viewing of the brightest stars and planets.

Here are some suggestions for starting off.

New-Telescope Delight: The Moon

The Moon is one celestial object that never fails to impress in even the most humble scope. It’s our nearest neighbor in space — big, bright, starkly bleak, and just a quarter million miles away. An amateur telescope and a good Moon map can keep you busy on the Moon forever.

Full Moon

See if you can identify these noteworthy features in your scope around the time of full Moon.
Bob King

As luck would have it, on the night of December 25, 2015, the Moon is full. In some respects, this is actually the worst time for telescopic Moon viewing, because its full sunlit face lacks shadows to cast mountains and craters into sharp relief. But there's still plenty of interesting things to see — check out our guide to viewing the full Moon by lunar scientist (and S&T contributing editor) Charles A. Wood.

By the way, if the Moon looks too bright to view comfortably, and you don't have a dark "Moon filter" to screw into your eyepiece, you can just slip on some sunglasses (really!).

On the following nights, the Moon wanes away from full phase. Each night it rises in the east about an hour later. Mountains and craters will come into stark relief along the line dividing lunar day and night, called the terminator, which creeps around the edge into view after full Moon. Near the terminator, sunlight come

2 thoughts on “What to See with Your New Telescope

  1. Peterc34

    Per the Corey Hart song: “I wear my sunglasses at night…”

    Also, don’t forget that you can locate the Apollo landing sites with your new telescope, using this S&T link:
    (you can’t see anything there – even the Hubble Space telescope can’t see items left behind – but you’ll see the general areas where humans have actually stood and stared back at us).

  2. Peterc34

    Capturing the ISS is another fun activity that even smaller telescopes can manage. Get a camera adapter and start firing away at it. I’ve been able to get shots that clearly show each individual solar panel, each module and all the larger structures. If something is docked to it, you’ll get THAT too!

    NASA Spot The Station:
    (enter your address and you’ll get an accurate timetable of flyovers)

    How to Photograph the International Space Station using a Telescope:

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