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Rho Cassiopeiae is a semi-regular pulsating star of spectral class G2Ia0e. Credit: Aladin at SIMBAD.

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

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## Quiz

1

Which of the following emission/absorption phenomena are associated with radiation astronomy?

 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

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

 TRUE FALSE

3

Which of the following is a phenomenon associated with yellow astronomy?

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

4

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

 TRUE FALSE

5

Which chemical phenomenon are associated with the Earth?

 quartz is the second most abundant mineral an atmosphere containing CO2 green, red, blue, and yellow airglow the production and escape of hot H+ ions oxygen emissions helium ions

6

True or False, The XRS aboard the MESSENGER spacecraft maps mineral composition.

 TRUE FALSE

7

Tarapacaite is a natural mineral pigment composed of what likely source of yellow?

8

True or False, The planet Saturn exhibits a pale yellow hue due to ammonia crystals in its upper atmosphere.

 TRUE FALSE

9

Yes or No, The V 2 rocket was first used as a sounding rocket for yellow astronomy before being converted into a weapon.

 Yes No

10

A terrestrial planet is composed primarily of?

11

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

 TRUE FALSE

12

Complete the text:

 A filter of type F588N allows the transmission of rays.

13

True or False, The Hubble Space Telescope currently uses the Wide Field Planetary Camera (PC-2) with its F588N filter among others for yellow astronomy.

 TRUE FALSE

14

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

 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

15

True or False, There are yellow or yellow mineral containing meteorites.

 TRUE FALSE

16

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

17

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

 TRUE FALSE

18

True or False, The rocky surface of the planet Venus can be detected when Venus is observed using yellow astronomy.

 TRUE FALSE

19

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

20

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

 TRUE FALSE

21

Yellow astronomy observation is performed all around the surface of the Earth by?

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.

 TRUE FALSE

23

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

24

True or False, Yellow Bremsstrahlung radiation is not detected from the Sun because the photosphere isn't ionized enough to produce it.

 TRUE FALSE

25

During the late 1600s the sunspot cycle lost its usual intensity and became what?

26

True or False, Yellow radiation bursts are the most luminous electromagnetic events known to occur in the universe.

 TRUE FALSE

27

Which of the following is not a characteristic of radiation?

 throwing a beam a stream of charged or neutral particles the process of calculating the energy of a beam sending out a traveling ray a secondary hazard

28

True or False, A principle is a law or rule that has to be followed.

 TRUE FALSE

29

Using the equation ${\displaystyle {\frac {c2}{\lambda T}}{\frac {1}{e^{\frac {c2}{\lambda T}}-1}}e^{\frac {c2}{\lambda T}}-5=0}$ what temperature corresponds approximately to a Planckian peak wavelength of 580 nm?

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

30

True or False, In the first derivative of Planck's equation to generate a wavelength, temperature pair like (495 nm, 6100 K), the constant c2 has units of nm K.

 TRUE FALSE

31

Which of the following is not a yellow characteristic of solar active regions?

 iron yellow spectral lines are 1.4 % shallower at solar maximum coronal clouds spot central meridian passage a surface coverage of at least 95%.

32

True or False, The Earth's atmosphere does not transmit yellow radiation between 470 and 590 nm in wavelength because of water vapor.

 TRUE FALSE

33

Which of the following is involved in planetary astronomy more so than planetary science?

 the occurrence of yellow rock types on the surface of rocky objects the Earth and other rocky objects have a yellow mineral containing mantle checking equations about complex systems the advantages of a 580 nm band pass digging holes in the surface of the Moon surface temperatures low enough to produce methane lakes

34

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

 TRUE FALSE

35

Various yellow 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

36

True or False, A yellow metallic or stony object that is the remains of a meteor is called a meteoroid.

 TRUE FALSE

37

Which of the following is not a phenomenon usually associated with regions?

 a connected part of a space a tract of yellow fields definite extent of a banana orchard Rho Cassiopeiae temporal change in yellow radiation flux weather

38

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

1. Yellow wavelengths help identify elements like sulfur.