Telescope

Question 1

Is a path between two
nodes in an optical
network between
which light passes
through unmodified

Answer 1

LIGHT PATH

Question 2

Flat Corrector Plate/
Flat Lens

Answer 2

COMPOUND TELESCOPE
(SCHMIDT-CASSEGRAINE)

Question 3

Concave Corrector
Plate / Concave
Lens

Answer 3

COMPOUND TELESCOPE
(MAKSUTOV-CASSEGRAINE)

Question 4

is an imaginary
sphere with the
earth at its center.

Answer 4

THE CELESTIAL SPHERE

Question 5

Celestial Poles

Answer 5

North Celestial Pole
(NCP)
South Celestial Pole
(SCP)

Question 6

The North
Pole is the point at the very top of Earth’s axis of
rotation. It is the northernmost point on Earth’s
surface, located at 90° latitude north.

Answer 6

North Pole or True North

Question 7

The South
Pole is the point at the southernmost tip of Earth’s
axis of rotation, located at 90° south latitude.

Answer 7

South Pole or True South

Question 8

is the point on Earth’s surface
where the planet’s magnetic field points vertically
downwards, which is the direction a compass
needle points.

Answer 8

Magnetic North

Question 9

is the point on Earth’s surface
where Earth’s magnetic field points vertically
upward, which is where a compass needle points
south.

Answer 9

Magnetic South

Question 10

Consequently, the star
Polaris lies very close
to the North Celestial
Pole. Hence, it is
called a

Answer 10

“Polar Star”
or “The Northern
Star”

Question 11

It is a circle around
the celestial sphere
midway between the
celestial poles.

Answer 11

Celestial
Equator (CE)

Question 12

It is the apparent
path of the Sun
around the Celestial
Sphere during a year.

Answer 12

Ecliptic (E)

Question 13

Equinoxes and Solstices

Answer 13

June 21 – Summer Solstice

September 21 – Autumnal
Equinox

December 21 – Winter Solstice

Question 14

This is where the ecliptic, and
the celestial equator intersect.

Answer 14

Equinox

Question 15

is marked in
Right Ascension as 0 Hours

Answer 15

Vernal Equinox

Question 16

is marked in
Right Ascension as 12 Hours

Answer 16

Autumnal Equinox

Question 17

is the celestial equivalent of longitude.
RA can be expressed in degrees, but it is
more common to specify it in hours,
minutes, and seconds of time. For
example 15 hours 45 minutes, and 23
seconds

Answer 17

Right Ascension (RA)

Question 18

is the celestial sphere’s equivalent of
latitude and it is expressed in degrees,
as is latitude. For DEC, + and - refer to
north and south, respectively. The
celestial equator is 0° DEC, and the poles
are +90° and -90°

Answer 18

Declination (DEC)

Question 19

PROMINENT
PATTERNS

Winter Hexagon
or Winter
Triangle

Answer 19

Sirius

Capella

Rigel

Procyon

Aldebaran

Pollux

Question 20

Summer Triangle

Answer 20

Altair

Deneb

Vega

Question 21

Ursa Major and
Ursa Minor

Answer 21

Big Dipper

Small Dipper

Polaris

Question 22

Finding the Milky Way

In between Scorpius
and Sagittarius

Prominent Stars:

Answer 22

Antares

Kaus Astralis

Question 23

Prominent Southern
Constellations

Answer 23

Crux

Centaurus