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Stars/Yellows/Quiz

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Above, the northern section of the Eridanus constellation is delineated in green, while Orion is shown in blue. Below, an enlarged view of the region in the white box shows the location of Epsilon Eridani at the intersection of the two lines. Credit: ESO/Y. Beletsky.

Yellow stars is a lecture from the radiation astronomy department for possible inclusion in the course on the principles of radiation astronomy.

You are free to take this quiz based on yellow stars.

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

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

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1 Which of the following emission/absorption phenomena are associated with yellow stars?

helium lines at 501 and 505 nm
the strong C2 (1,2) band
nitrogen emission in plasmas at 566.934 nm from N VIII
helium emission line at 5876 Å
neutral iron line at 526.96 nm
calcium yellow line at 569.4 nm

2 Which of the following is a phenomenon associated with yellow stars?

Jupiter
sodium line emission
sunspots on the Sun
an emission with a wavelength of 420 nm
phosphorus
TiO

3 True or False, The red shift cannot affect yellow stars.

TRUE
FALSE

4 Complete the text:

A filter of type F588N allows the transmission of

rays.

5 Which of the following emission/absorption phenomena are associated with yellow stars?

Nitrogen emission line at 575.5 nm
the strong C2 (1,2) band
nitrogen emission in plasmas at 566.934 nm from N VIII
Helium emission line at 5876 Å
neutral iron line at 526.96 nm
Calcium yellow line at 569.4 nm

6 Which of the following is not a prominent feature associated with the yellowness response?

M cone cells
a green light source
L cones
"bluish green" 493-498 nm
"yellowish green" 530-559 nm
"yellow green" 559-570 nm

7 True or False, Bremsstrahlung radiation may be a source of the yellow continuum.

TRUE
FALSE

8 Which of the following are likely associated with a yellow emission line control group?

rocky objects
high peak to background
plasma objects
a G2V photosphere
rotation
watery surface
spots

9 Using the equation what temperature corresponds approximately to a Planckian peak wavelength of 580 nm?

5140 K
5800 K
5170 K
6000 K
5870 K
5250 K

10 Which of the following are the differences between a star and an astronomical yellow source?

a star may emit predominantly green rays
an astronomical yellow source is spherical
a yellow star is an astronomical yellow source
a star with nuclear fusion in its chromosphere emits neutrinos, but a yellow source with no nuclear fusion ongoing does not
a yellow source may be cloud like
an astronomical yellow source may be a rocky object


Hypotheses

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  1. Yellow stars allow the study all the astronomical objects of the Solar System.

See also

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{{History of science resources}}{{Principles of radiation astronomy}}{{Radiation astronomy resources}}