Posted by: destinyofaries on: January 24, 2009
I posted here some exercise problems that you can use to expand your knowledge in some chapter in basic astronomy :
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1.) The following statements are true or false:
(a) Of all the natural satellites in the Solar System only the Moon always turns the same face towards its primary.
(b) The mass of a planet in the [...]
Posted by: destinyofaries on: January 10, 2009
Spectroscopy is a branch study in astronomy that focus on astronomical objects’ spectrum. From the spectrum, we can get informations, such as its temperatures, chemical compositions, movement speed, etc. That’s why spectroscopy can be considered as one of the fundamental field in astronomy. The spectrum of a star (or any other astronomical object) is acquired [...]
Tags:
astronomy,
energy,
spectroscopy,
spectrum,
spectrograph,
Kirchoff law,
continuous spectrum,
emission spectrum,
absorption spectrum,
lines,
temperature,
chemical composition,
Balmer series,
Rydberg constant,
Planck,
quantum law,
quantum physics,
photon,
star's spectrum,
Annie J. Cannon,
spectrum class,
luminosity class,
Hertzprung-Russell diagram,
star motion,
proper motion,
barnard,
radial velocity,
tangential velocity,
Doppler shift,
red shift,
blue shift,
line of sight,
linear motion,
true motion
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