WorksheetsSpectroscopy and Celestial Observations
Total questions: 32
Worksheet time: 21mins
How long is a sidereal day
23h
24h
23h 54m
23h 56m
An imaginary dome of the sky onto which all celestial objects such as stars, moons and planets can be plotted.
Sun
Celestial Sphere
Apparent Motion
Real Motion
Height of a celestial object above the horizon measured in degrees.
Altitude
Height
Zenith
Polaris
This is the highest altitude an object to an observer.
0
1
100
90
If an electron moves from n=4 to n=2 it ____
absorbs energy
releases energy
Upon closer examination, sunlight (and all stars) actually emit ___ spectra.
bright-line (or emission)
absorption (or dark-line)
continuous
multiple
The point directly over an observer's head.
Apparent Motion
Celestial Sphere
Real motion
Zenith
Where on Earth would you be if Polaris was at your Zenith?
North Pole
Artic Circle
Tropic of Cancer
Equator
The apparent motion of the Sun will have it rising in the ______ and setting in the _______.
north/south
east/west
west/east
south/north
A. The apparent path of the Sun across the sky.
Ecliptic
Zenith
Declination
Azimuth
The measure of how far an object in space is above or below the celestial equator.
Azimuth
Declination
Right Ascension
Zenith
What name is given to the array of constellations that the ecliptic plane passes through?
Horoscopes
Constellations
Array of constellations
Zodiac
The horizontal coordinate system uses which two coordinates?
altitude and azimuth
latitude and longitude
right ascension and declination
The equatorial coordinate system uses which two coordinates?
altitude and azimuth
latitude and longitude
right ascension and declination
what can be found along the ecliptic? (check all answers that are CORRECT)
the sun
the planets
the moon
the zodiac constellations
the sun, stars, and moon rise in the east and set in the west each day because
the sun is revolving
the earth is rotating
the celestial sphere is revolving
the ecliptic is rotating
How many constellations are there officially?
12
72
88
1
What is the celestial equator?
A band of constellations through which the planets and sun appear to move.
The line that the sun traces across the celestial sphere.
An imaginary line in the sky directly above Earth's equator.
An imaginary line running north-south through the zenith
About how many stars are visible on a clear, dark night with the naked eye alone?
a few dozen
a few hundred
a few thousand
hundreds of thousands
Philadelphia, PA, has a latitude of 40 degrees N. What is the altitude of Polaris in this city?
90 degrees
73.5 degrees
40 degrees
50 degrees
Which elements are present in the mixture?
D and E
D and G
E and G
only D
only G
The absorption spectrum of a star is shown at the top of the image. When compared with the spectra of the pure gases below, which elements are present in the star?
hydrogen
helium
sodium
lithium
