Celestron SkyScout Manual do Utilizador descarregar pdf

Since its release, everyone seems to be

talking about the Celestron SkyScout

Personal Planetarium. On its own, it’s an

innovative and useful tool for locating and

identifying a large assortment of objects in

the night sky. But one question I kept

hearing on all the astronomy message

boards was, “Can I mount it to my tele-

scope and use it as a manual 'go-to' sys-

tem?” The short answer was no, if the tele-

scope’s optical tube was made out of steel.

The reason is that the SkyScout relies on

GPS satellites to find objects, and mag-

netic sources can cause interference.

Well, Celestron must have been lis-

tening. The new Celestron SkyScout

Scope answers the question by employing

a non-magnetic aluminum optical tube,

finderscope, focuser, tube rings, and

SkyScout mounting hardware, so magnet-

ic interference isn’t an issue. But how well

do the SkyScout and scope work together?

First, I’ll begin with the scope itself,

since the ability to find objects would be

useless if the views through the eyepiece

weren’t any good. The scope in question is

a 90-mm f/7 achromatic refractor. It

arrived in a large, well packed box, com-

plete with everything needed to get out-

side and view on the first night. …That is,

if the skies were clear! The new gear

“curse” was certainly with me, as it seemed

to be cloudy every evening.

While this did allow me to get

accustomed to many of the SkyScout’s

unique features, it wasn’t as satisfying

as actually getting some observing

time in! I spent a good deal of time with

the scope set up in my living room, ready

to go at the first sign of a break in the

clouds. It’s a nice looking scope, and it

really got me thinking about how much

gear money can buy these days. For just

over $300 (not including the SkyScout

itself), this was a nice, solid rig. The

mount has thick, stainless steel legs; the

optical tube is built well and attractive to

look at. Anyone would be proud to own

such a scope and its appearance and over-

all quality gives the impression of a much

higher price tag.

For specifics, I’ll start with the

focuser. For an inexpensive telescope, the

R&P focuser is very smooth with no

“slop” or play. However, I’d like to see a bit

more outward travel than the 2 3/8 inch-

es offered. Some of my eyepieces didn’t

reach focus until the drawtube was

extended almost all the way out and new

owners should consider investing in one

of the short extension tubes that are read-

ily and affordably available. The 6x30

finderscope is of good optical quality,

although it did arrive out of focus.

Focusing it was easy, by loosening a lock-

ing ring on the finderscope body, and

turning the achromatic

lens assembly clockwise or

counterclockwise until stars are

in focus. Then, the locking ring is

tightened down to maintain its

position.

The scope comes with two eyepieces,

a 40-mm, and a 10-mm. Both appear to

be of a Plossl design, and they’re about

what I’d expect as accessories included

with a telescope. The 10-mm is optically

good, with tight eye relief that’s typical in

shorter Plossls. I found the 40-mm diffi-

cult to use, as the eye relief is extremely

long. Even with the eyeguard peeled up,

kidney beaning and “blackouts” were an

issue for me. However, an eyeglass wearer

might find the long eye relief in the 40-

mm useful. Both eyepieces are internally

blackened, and I could detect no stray

reflections. The 40-mm has a safety

groove on the barrel.

A 1.25-inch 90 degree prism diagonal

is also included. After comparing it with

my own mirror diagonal, I was pleasantly

surprised. The prism diagonal shows no

visible loss of brightness, and works well

for astronomical viewing.

Under a suburban sky, I had several

fun and productive nights out with the

SkyScout scope. At high power, Mars

revealed its slight gibbous phase and a

good amount of detail on its disk. The tra-

Astronomy TECHNOLOGY TODAY

By Erik Wilcox

Celestron

Skyscout Scope 90

A fun combo - finding objects

has never been so cool!

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Resumo do Conteúdo

Página 1 - Celestron

Since its release, everyone seems to betalking about the Celestron SkyScoutPersonal Planetarium. On its own, it’s aninnovative and useful tool for loc

Página 2 - CELESTRON SKYSCOUT SCOPE 90

56Astronomy TECHNOLOGY TODAY pezium in Orion was crisp and clear, andeasily showed its four main components.Deep sky objects were as good as could bee

Página 3 - Celestron SkyScout Scope

CELESTRON SKYSCOUT SCOPE 90 Astronomy TECHNOLOGY TODAY 57SPECIFICATIONSOPTICAL DESIGN Refractor APERTURE 90 mm (3.54 in)FOCAL LENGTH 660 mm (25.98 in)

Página 4

position. This is done by simply turningthe end of the lever clockwise - a very nicefeature. In azimuth, there’s an easilyaccessible lever on the moun