Defining Astronomy

timer Asked: Dec 3rd, 2018
account_balance_wallet $10

Question description

Type in the definitions for the following terms:

  • hydrostatic equilibrium –
  • granule –
  • granulation –
  • photosphere –
  • apparent brightness –
  • luminosity –
  • H-R diagram –
  • Main sequence –
  • Supergiants –
  • Giants –
  • White dwarfs –
  • Black hole –
  • Neutron star –


  • What are the two main heat (energy) transport regions of the sun?


  • In which of these regions does energy take millions of years to traverse?


  • Explain the phrase (in 2-4 sentences) “The Sun generates energy at the expense of consuming itself.

4.What are the two similarities among all stars?____________________________________

  • What are the four differences among all stars?

________________________________________________________ ___________________

6.What properties of stars does the spectral type describe?

7.What properties of stars are plotted on the H-R diagram?

8.Which stars age faster?High mass or low mass?

9.What is the difference between luminosity and apparent brightness?

10.Which luminosity class represents stars that are still fusing hydrogen into helium?

11.Which star is brighter?Mag +3 or Mag +10?

Fill in the blanks:

Stellar evolution

_______________ holds stars together; _________________ supports stars against gravity.

_______________ and ______________ forces must balance.

___________________ is created by _________________________ in a star’s core.

__________________________ cause ______________ to flow from the core to the surface,

where it escapes into space as the star’s ____________________ (starlight).

Escaping ___________ is replenished by _______________________ in the core.(Hydrogen

Fuses to helium initially).

The star eventually runs out of __________.

Lo-mass stars (M < 10 solar masses) turn into ___________________________________.High

Mass stars (M > 10 solar masses) explode, leaving a ___________________________ or


Tutor Answer

School: UT Austin


flag Report DMCA

Good stuff. Would use again.

Similar Questions
Hot Questions
Related Tags

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors