cataclysmic variable Comparison Table

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cataclysmic variable comparison table

Subject has energy release has spectral type has orbital period become is an instance of has symbol has prototype has abundance has amplitude is a kind of has hydrogen line strength has peak brightness has use has synonym has definition has luminosity class has number of star

flare star M d 70 percent of all stars red dwarf UV Ceti star Stars undergoing erratic jumps in brightness (up to a few magnitudes) on time scales of the order of minutes. During the quiescent phase the spectrum is that of an M dwarf with emissions in the CaII and Balmer lines. V

nova 10⁴⁴ ergs naked eye star half the stars in the solar neighborhood are members of star systems emission line star nova peak brightness distance determination explosive variable A stars that undergoes an explosion during which its brightness increases by up to ten magnitudes. Usually the following phases are distinguished (in order of time): pre-maximum, principal, diffuse enhanced, Orion, nebular and post-nova. 2

pulsating nova cataclysmic variable explosive variable A variable star, probably not a true nova, in which the change between more and less luminous stages is extreme. (also called recurrent novae)

R Coronae Borealis variable F star, G star supergiant R Corona Borealis 8 magnitudes cataclysmic variable weak explosive variable A very luminous helium-rich, carbon-rich, hydrogen-poor eruptive variable supergiant whose light declines up to 8 magnitudes at irregular intervals. I

supernova 10⁴⁹ to 10⁵¹ ergs emission line star 10⁸ solar luminosity units supernova peak brightness distance determination explosive variable A gigantic stellar explosion in which the star's luminosity suddenly increases by as much as a billion times. Most of the star's substance is blown off, leaving behind, at least in some cases, an extremely dense core which may be a neutron star.

Subject	has energy release	has spectral type	has orbital period	become	is an instance of	has symbol	has prototype	has abundance	has amplitude	is a kind of	has hydrogen line strength	has peak brightness	has use	has synonym	has definition	has luminosity class	has number of star
flare star		M				d		70 percent of all stars		red dwarf				UV Ceti star	Stars undergoing erratic jumps in brightness (up to a few magnitudes) on time scales of the order of minutes. During the quiescent phase the spectrum is that of an M dwarf with emissions in the CaII and Balmer lines.	V
nova	10⁴⁴ ergs			naked eye star				half the stars in the solar neighborhood are members of star systems		emission line star			nova peak brightness distance determination	explosive variable	A stars that undergoes an explosion during which its brightness increases by up to ten magnitudes. Usually the following phases are distinguished (in order of time): pre-maximum, principal, diffuse enhanced, Orion, nebular and post-nova.		2
pulsating nova										cataclysmic variable				explosive variable	A variable star, probably not a true nova, in which the change between more and less luminous stages is extreme. (also called recurrent novae)
R Coronae Borealis variable		F star, G star			supergiant		R Corona Borealis		8 magnitudes	cataclysmic variable	weak			explosive variable	A very luminous helium-rich, carbon-rich, hydrogen-poor eruptive variable supergiant whose light declines up to 8 magnitudes at irregular intervals.	I
supernova	10⁴⁹ to 10⁵¹ ergs									emission line star		10⁸ solar luminosity units	supernova peak brightness distance determination	explosive variable	A gigantic stellar explosion in which the star's luminosity suddenly increases by as much as a billion times. Most of the star's substance is blown off, leaving behind, at least in some cases, an extremely dense core which may be a neutron star.

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