Stars/Sun/Astronomy/Quiz

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This is a red image of the Sun taken through a solar telescope. Credit: Totallyhaywire2.

Solar astronomy is a lecture about the radiation astronomy of Sol.

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

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the {{radiation astronomy resources}} template. This should give you adequate background to get 100 %.

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Enjoy learning by doing!

Quiz[edit | edit source]

  

1 Green astronomy may help to detect what type of astronomical object?

a stellar class G dwarf
the hydrogen Balmer alpha line
the photosphere of the Sun
extrasolar planets
lithium
the CMB

2 True or False, The position of the Sun can be determined directly with the use of green astronomy.

TRUE
FALSE

3 Which of the following is not a phenomenon associated with green astronomy?

a stellar class G dwarf
the hydrogen Balmer beta line
the photosphere of the Sun
an emission with a wavelength of 618 nm
"ionization cones"
boron ion emission

4 Complete the text:

Match up the object viewed in the ultraviolet with its image:
Sun's chromosphere- L
calcite - M
Venus - N
Jupiter's aurora - O
Jupiter - P
Io - Q
Saturn - R
Betelgeuse - S
Mira - T
LAB-1 - U
Messier 101 - V

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5 True or False, The surface of the Sun is readily imaged in the ultraviolet.

TRUE
FALSE

6 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

7 True or False, The Hβ emission line does not appear when the F492M filter is used on the Hubble Space Telescope because its wavelength is 486.1 nm.

TRUE
FALSE

8 Complete the text:

Match up the violet or violet containing image with the object letter:
Sun - A
Venus - B
Earth - C
Moon - D
Mars - E
Jupiter - F
Ganymede - G
Io - H
Saturn - I
Dione - J
Titan - K
Uranus - L
Ariel - M
Miranda - N
Triton - O
Eta Carinae - P
NGC 5584 - Q

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9 Red-giant stars have (or theoretically may have) these in common:

potential 22Ne
helium-burning shells
non-standard neutrino losses
Lithium red line
N stars display F abundances up to 30 times the solar system value
RGB and AGB stars
a radius between 200 and 800 times that of the Sun

10 True or False, Some observed properties of the Sun still defy explanation, such as the degree of Li depletion: the solar Li abundance is roughly a factor of 200 below the meteoritic abundance. This has been confirmed using the lithium 555.2 nm line.

TRUE
FALSE

11 Which of the following is not a phenomenon associated with red astronomy?

a stellar class M dwarf
the hydrogen Balmer alpha line
the photosphere of the Sun
an emission with a wavelength of 618 nm
lithium
"cometary knots"

12 True or False, Stars of spectral classes F and G, such as our sun, have color temperatures that make them look "greenish".

TRUE
FALSE

13 Complete the text:

Match up the blue object with the possibilities below:
Sun - H
Mercury - I
Venus - J
Earth - K
Meteorite on Mars - L
Pallas - M
Comet Holmes - N
Europa - O
Io - P
Saturn - Q
Enceladus - R
Tethys - S
Titan - T
Neptune - U
Abell 370 - V
SN 1987A - W
Crab Nebula - X

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14 Yes or No, Cyan Bremsstrahlung radiation is not detected from the Sun because the photosphere isn't ionized enough to produce it.

Yes
No


Hypotheses[edit | edit source]

  1. Astronomy of the Sun includes the radiation astronomy of the astronomical object often called the Sun.

See also[edit | edit source]

External links[edit | edit source]