Topic 6 - Celestial observation

Question 1

What are the three brightest stars in Cassiopeia?

Answer 1

Schedar, Caph, Navi

Question 2

What are the three brightest stars in Cygnus?

Answer 2

Deneb, Albireo, Sadr

Question 3

What are the three brightest stars in Orion?

Answer 3

Betelgeuse, Rigel, Bellatrix

Question 4

What is Right Ascension?

Answer 4

Part of the equatorial coordinate system, the angular distance from the First Point of Aries, moving East

Question 5

What is Declination?

Answer 5

Part of the equatorial coordinate system, the angular distance North or South of the Celestial Equator

Question 6

What is Altitude?

Answer 6

Part of the horizon coordinate system, the angular distance from the horizon

Question 7

What is Azimuth?

Answer 7

Part of the horizon coordinate system, the angular distance from North, heading East

Question 8

How can you work out the Altitude of your Celestial Pole?

Answer 8

Find your latitude

Question 9

What is the Hour Angle?

Answer 9

How long ago a star culminated

Question 10

What is Local Sidereal Time?

Answer 10

The RA of any star on your Meridian

Question 11

How long will it be until a star is the same point that it was the previous night?

Answer 11

The star will be 4 minutes earlier each night