Lessons 1-3 Flashcards
Which astronomer was the first to use a telescope to study the night sky?
Galileo Galilei
What is the name of the bright star in Canis Minor?
Procyon
Who first proposed that the planets revolves around the sun?
Aristarchus
WHICH PERIOD CAN BE READILY OBSERVED?
The synodic period
Where on Earth do the sun’s rays hit most directly when it is the autumnal equinox in the Northern Hemisphere?
The Equator
What could time measured from a full moon to the next full moon be called?
Synodic period
Which of the following properties is the most important to look for in an optical telescope?
Lens diameter
What is a photon?
A tiny packet of energy
Which of the following electromagnetic waves has the lowest frequency?
Infrared
When does the vernal equinox occur in the Northern Hemisphere?
March 21
What is the most convenient unit for comparing distances within the solar system?
Astronomical units (AU)
What is the darkest part of a planet’s shadow called?
Umbra
What is the name for the planetary configuration when Jupiter, Earth, and Sun are in a line with the Earth in between Jupiter and the Sun?
Opposition
ASTRONOMERS USED TO USE FILM CAMERAS ALONG WITH TELESCOPES TO STUDY THE NIGHT SKY. WHICH OF THE FOLLOWING DEVICES REPLACED THE TRADITIONAL FILM CAMER AS A TOOL TO RECORD WHAT TELESCOPES CAN SEE?:
1) CCD
2) CONCAVE MIRROR
3) MICROPHONE
4) EYEPIECE
?
What is the correct list of planets in order from the Sun outward?
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
