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This is a statue of the Hindu Earth goddess. Credit: Ranveig.

Entity astronomy is a lecture studying the variety and types of entities in or associated with original research/radiation astronomy, including astrohistory. It may become a lecture for the course on the principles of radiation astronomy or joined with classical planets for a course on ancient astronomy.

You are free to take this quiz based on entity 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 %.

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.

Suggestion: Have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information from more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit | edit source]


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

2 Complete the text:

Match up the entity, source, or object with the cosmogony:
popular contemporary writings - A
a source spectrum peaking sharply at photon energies of 100 eV - B
a lucky entity - C
an entity of evolution - D
most of the initial baryons - E
a cloud of 105–107 M - F
natural selection

the laws of physics

one or a few SMOs


a population of stars

a blackbody spectrum with temperature of 106 K


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

watery abyss
cold dark matter
unseen mass
Silver age

4 Complete the text:

Match up the type of Sun system astrogony with each of the possibilities below:
Babylonian epic story of creation - A
a primordial or first Greek god - B
the primeval chaos - C
creation of heaven and earth - D
Greek god personifying the sky - E
Cronus (Saturn) castrating his father - F
separation of the waters by a firmament

Chaos magno


watery abyss


Enuma Elish


5 Yes or No, Democritus and Anaxagoras taught that there was a time when the Earth was without the Moon.


6 Complete the text:

The moon was formed independently of the earth and later

, presumably by a


7 True or False, Hippolytus refers to a legend that Arcadia brought forth Pelasgus, of greater antiquity than the moon.


8 The following phenomena are associated with the Golden Age?

An, the oldest and highest of the Sumero-Babylonian gods
There is one God, greatest among gods and men
Nabu or Nebo
Hermes invented one language for one people, another for another

9 Which of the following phenomena are associated with Venus?

separate stars, Phosphorus, the morning star, and Hesperus, the evening star
locally available carving tools
the ionosphere was observed to become elongated downstream, rather like a long-tailed comet, during a rare period of very low density solar outflow
Lucifer, literally "Light-Bringer", and Vesper
currently dormant volcanoes only on the Sun-facing side
a breathable atmosphere

10 Which phenomenon are associated with cold dark matter?

unseen mass
a bubble in space
range of masses of galaxies
hot neutrinos
Einstein-de-Sitter 'flat' universe
the cosmological density parameter Ω

11 The strong force is involved in which of the following phenomena?

the sum of the spins
Pauli's exclusion principle
radio waves

12 Which of the following are involved in the weak force?

a core which emits neutrinos
Fermi's β-decay theory
undetectable with balloon-borne detectors
Gamow-Teller interactions
steady enough emission to be used as a standard for X-ray emission
observed with delta-rays in 1731
M. Fierz

13 True or False, The hierarchical clustering model has the gravitational effects of dark matter drive the evolution of structure from the near-uniform recombination epoch until the present day.


14 Which of the following are phenomena associated with cosmogonic neutrons?

primordial nucleosynthesis
an expansion timescale
a baryon density
neutron-proton ratio freezes out
a predicted 4He abundance
rather an insensitivity to matter density

15 The electron and ion currents of the cosmogonic shadow effect are given by

et al., 1984.

16 Complete the text:

Because of the huge spatiotemporal

of plasma objects in space, the basic accepted views about the theory of plasma

, which is now better suited for laboratory

, are already in need of


Hypotheses[edit | edit source]

  1. Northern hemisphere peoples around the world saw deities in the sky toward the North pole with halos around their faces.

See also[edit | edit source]

External links[edit | edit source]