Radiation astronomy/Opticals/Quiz

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Observations by NASA's Hubble Space Telescope reveal an increase in Neptune's brightness in the southern hemisphere. Credit: NASA, L. Sromovsky, and P. Fry (University of Wisconsin-Madison).

Optical astronomy is a lecture and an article as part of the astronomy department course on the principles of radiation astronomy.

You are free to take this quiz based on optical astronomy at any time.

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1 Complete the text:

Match up the description with each of the optical astronomy possibilities below:
Palomar's 5 m - L
adaptive optics poc - M
AO actuators - N
Mars Global Surveyor - O
star-forming regio - P
Warner & Swasey - Q
protoplanetary nebula - R
SkyMapper - S
Mauna Kea - T
full-color of Mercury - U
Hubble Space Telescope of carbon star - V
supernova remnant - W
line of sight - Y

U Camelopardalis.jpeg

USNO Refractor 1904.jpg

Canada-France-Hawaii Telescope with moon.jpg


GTC Active Optics Acutators.jpg

Mercury in color - Prockter07 centered.jpg

Egg Nebula HST.jpg


Earth and Moon from Mars PIA04531.jpg

SkyMapper and 2.3m.jpg

Grand star-forming region R136 in NGC 2070 (visible and ultraviolet, captured by the Hubble Space Telescope).jpg

Supernova remnant IC 443.jpg

AO proof of concept.jpg


2 True or False, The symbol represents the Sun.


3 Astronomy is not purely mathematics because of which phenomena?

the Sun
displacements consist of a number plus a dimension such as kilometers
a late-summer rainstorm

4 True or False, The expanse of space that seems to be over the Earth like a dome is called heaven.


5 Which of the following is characteristic of the scattered disc

a distant region of the solar system
the dwarf planet Eris
orbital eccentricites ranging up to 0.8
inclinations as high as 50°
perihelia greater than 30 AU

6 True or False, The observations of planetary motion agree with computed orbits to the accuracy of the observations.


7 The atmosphere of Titan which has a natural orange color is composed largely of?

8 True or False, A planet has been referred to as a moving light in the sky.


9 Observations of Io have benefitted greatly from what phenomenon?

a dense, opaque atmosphere
extensive meteorite cratering
a flattening out
liquid hydrocarbon lakes
the reflected light of allotropes and compounds of sulfur

10 True or False, The visible path of a meteoroid that has entered the Earth's atmosphere is called a meteorite.


11 With respect to the zodiacal light which group of middle-easterners worshipped it?

12 True or False, When Venus is viewed in the ultraviolet, its color appears brownish.


13 Complete the text:

When imaged in visible light Venus appears like a gas

rather than a


14 True or False, "Regarding the fixed stars, the Sun appears from Earth to revolve once a year along the ecliptic through the zodiac".


15 The use of the principle of line of sight allows what phenomenon to be determined?

the Moon is closer to the Earth than the Sun
the planet Mercury is nearer to the Earth than Venus
any cumulus cloud overhead follows the Sun across the sky
the plane of the Earth's orbit around the Sun is in the plane of the galaxy
the surface of the photosphere of the Sun is hotter than the surface of Mars
lightning always precedes rain

16 True or False, An aurora seen from Australia may be a blue radiation source.


17 Complete the text:


have long been known from

Age contexts.

18 True or False, The Russian Okno system is an optoelectronic, manually operated system for monitoring and surveillance of space objects integrated to the KRONA system of space recognition.


19 Which of the following are green observatories in orbit around the Earth?

Chandra X-ray Observatory
Big Bear
the Hubble
Lomnický štít

20 True or False, The US Ground-based Electro-Optical Deep Space Surveillance (GEODSS) base at Diego Garcia is located just off the coast of southern California.


21 Various optical radiation observatories occur at different altitudes and geographic locations due to what effect?

the presence of oceans on the Earth
locally available carving tools
light pollution
most astronomical objects are observed at night
currently dormant volcanoes seldom erupt
human habitation increases near an astronomical observatory

22 True or False, The Mauna Kea Observatories are used for scientific research across the electromagnetic spectrum from visible light to radio, and comprise the largest such facility in the world.


23 Complete the text:

The 0.6m Tortugas Mountain Observatory is used to monitor the temporal changes in the

cloud deck and equatorial activity on


24 True or False, Optical telescopes use domes as a form of shelter.


25 Complete the text:

Match up the radiation letter with each of the detector possibilities below:
Optical rays - L
Visual rays - M
Violet rays - N
Blue rays - O
Cyan rays - P
Green rays - Q
Yellow rays - R
Orange rays - S
Red rays - T
multialkali (Na-K-Sb-Cs) photocathode materials



broad-band filter centered at 404 nm


thallium bromide (TlBr) crystals


18 micrometers FWHM at 490 nm

wide-gap II-VI semiconductor ZnO doped with Co2+ (Zn1-xCoxO)


26 True or False, The Hubble Space Telescope currently uses the Wide Field Planetary Camera (PC-2) with its F492M filter among others for green astronomy.


27 Which of the following are characteristic of the telluric mercury green line?

546.1 nm
light pollution at the Calar Alto observatory
a decay product of uranium
mercury vapour lamps
tropospheric scattering
y-band of the ubvy Strömgren photometric system

28 True or False, A professional astronomer holding a digital camera in their hands while working on the International Space Station is a primary astronomical visual source.


29 Cheomseongdae was involved in which of the following astronomies?

cosmic-ray astronomy
infrared astronomy
neutrino astronomy
visual astronomy
ultraviolet astronomy
radio astronomy

30 True or False, Boron has an emission line in the yellow.


31 On 19 May 1910, the Earth actually passed through the tail of what comet.

32 Ashen light is involved in which of the following?

glow of the bright part of the lunar disk
light from different parts of Earth are mixed together
mimics the Earth as a single dot
neutron astronomy
X-ray astronomy

33 Being outside during fair weather in the day light looking upward when the Sun is off to the East or West, you may see that the sky is what color.

34 Complete the text:

An aerometeor is a

unit of air traveling or

through an atmosphere.

35 Yes or No, Hydrogen has an emission line in the yellow.


36 Usually associated with clouds filling the sky, thunder and lightning, wind and what water based meteorites

37 The extent of the Hα absorption trough along the major axes of quenched spirals is what?

more truncated than the distribution of the Hα emission line for H I deficient galaxies
contributed to by the new stellar population
less truncated than the distribution of the Hα emission line for H I deficient galaxies
due to the quenching
disks building up from the outside in


  1. Quiz questions could be included that pertain to optical components.

See also[edit]

External links[edit]

{{Radiation astronomy resources}}