Object astronomy/Quiz

Object astronomy is a lecture about a specific kind of astronomical entity.

Thermal image of a sink full of hot water with cold water being added shows the hot and the cold water flowing into each other. Credit: Zaereth.

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1 Quiz
2 Hypotheses
3 See also
4 External links

Quiz

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1 Which of the following are green radiation astronomy phenomena associated with the Sun?

	the color of the upper rim as seen from Earth
	an excess brightness at or near the edge of the Sun
	the iron XIV green line
	neutron emission
	polar coronal holes
	meteor emission
	changes in the line-blanketing

2 Before the current era and perhaps before 6,000 b2k which classical planet may have been green?

3 True or False, At least in emission sodium astronomy, Mercury is a dwarf gaseous object.

	TRUE
	FALSE

4 Which of the following are associated with the Sun control group?

	rocky objects
	gaseous objects
	plasma objects
	a photosphere
	rotation
	watery surface
	spots

5 Which of the following are radiation astronomy phenomena associated with the gaseous-object Neptune?

	Voyager 2
	blue rays
	clouds
	neutron emission
	polar coronal holes
	meteor emission
	rotation

6 Which of the following is not a characteristic of X-radiation?

	electromagnetic radiation
	ionizing radiation
	emitted by a few atomic nuclei
	occurs when a positron and an electron annihilate each other
	only penetrates so far into a gaseous-objects atmosphere

7 When ionization cones are present, what green characteristics are usually readily observed?

	O III green emission line
	green continua
	biconical structure
	a common cone axis and apex
	ionized gas
	neon clouds

8 Complete the text:

"In the green, the

of the pure

composition qualitatively appears a better

to the shape of the observed polarization curves."

9 True or False, The silicates used to model the cometary coma dust are olivene (Mg-rich is green) and the pyroxene, asbestos.

	TRUE
	FALSE

10 Which of the following is not a phenomenon associated with a comet?

	airglow
	elongated dust particles
	high albedo
	olivine
	Rayleighs
	coronal mass ejection

11 With respect to protoplanetary disks what green mineral has been found?

12 Green earth is a natural pigment composed of what likely source of green?

13 True or False, There are green or green mineral containing meteorites.

	TRUE
	FALSE

14 Which of the following are cosmogonical phenomenon associated with the Sun, or solar system?

	watery abyss
	aphrodite
	Hermeneutes
	cold dark matter
	Heracles
	unseen mass
	Silver age

15 Complete the text:

Condensed noble gases, most notably liquid

and liquid

, are excellent radiation detection

16 True or False, The presence of a liquid may be detected by using S-waves.

	TRUE
	FALSE

17 Observations of Titan have benefitted greatly from what phenomenon?

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

18 Which of the following are radiation astronomy phenomena associated with the apparent liquid-object Earth?

	rain
	snow
	hail
	neutron emission
	polar coronal holes
	meteor emission
	rotation

19 Why is much of the surface of Mars covered with red iron oxide dust when the rocks that compose much of its surface are blue or violet?

	Mars has been systematically bombarded with small iron-nickel meteorites or micrometeorites that oxidize in its atmosphere
	Mars has been frequently bombarded with hematite containing micrometeorites
	asteroid impacts on Mars may have forced iron from near its core into the atmosphere and onto the surface as hematite dust that oxidized
	Mars is like Earth in surface hematite composition, but Earth has much more water
	precipitation from iron-rich water