Manual Celestron AstroMaster LT 60AZ (page 17 of 25) (English)

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Star hopping to the Andromeda Galaxy (M31) is a snap, since all the stars needed to do so are visible to the

naked eye.

Star hopping will take some getting used to and objects that don’t have stars near them that are visible to

the naked eye are challenging. One such object is M57 (Figure 5-2), the famed Ring Nebula. Here’s how to

ﬁnd it:

1. Find the constellation of Lyra, a small parallelogram visible in the summer and fall months. Lyra is

easy to pick out because it contains the bright star Vega.

2. Start at the star Vega—Alpha (α) Lyrae—and move a few degrees southeast to ﬁnd the parallelogram.

The four stars that make up this geometric shape are all similar in brightness, making them easy to see.

3. Locate the two southernmost stars that make up the parallelogram—Beta (β) and Gamma (γ) Lyra.

4. Point about halfway between these two stars.

5. Move about ½° toward Beta (β) Lyra, while remaining on a line connecting the two stars.

6. Look through the telescope and the Ring Nebula should be in your ﬁeld of view. The Ring Nebula’s

angular size is quite small and difﬁcult to see.

7. Because the Ring Nebula is rather faint, you

may need to use “averted vision” to see it.

“Averted vision” is a technique of looking

slightly away from the object you’re observing.

So, if you are observing the Ring Nebula, center

it in your ﬁeld of view and then look off toward

the side. This causes light from the object

viewed to fall on the black and white sensitive

rods of your eyes, rather than your eyes color

sensitive cones. (Remember that when

observing faint objects, it’s important to try to

observe from a dark location, away from street

and city lights. The average eye takes about

20 minutes to fully adapt to the darkness. So

always use a red-ﬁltered ﬂashlight to preserve

your dark-adapted night vision).

These two examples should give you an idea

of how to star hop to deep-sky objects. To use

this method on other objects, consult a star

atlas, then star hop to the object of your choice

using “naked eye” stars.

Figure 5-2

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Celestron AstroMaster LT 60AZ Manual

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