Astronomy   View all facts   Glossary   Help

physical object > natural object > celestial body > collection of stars > star system > binary star > UV Ceti

UV Ceti (Luyten 726-8 B)
subject			fact

UV Ceti	has angular separation 1".0
	is a part of Cetus
	has spectral type M6e V
	has apparent magnitude Mv = 15.3 and 15.8
	has eccentricity e = 0.615
	has distance 2.8 pc
	has synonym Luyten 726-8 B
	has orbital period 26.5 years
	has mass 0.15 Msun
	has definition Late-type dwarf with spectra showing hydrogen emission lines. Faint flare star of very low mass. Like other flare stars, it is a member of a binary system in which both components are of nearly equal brightness. Radio flares have also been observed.
	is an instance of dMe star
	is an instance of flare star
	is an instance of binary star
binary star	has number of stars 2
red dwarf	has abundance 70 percent of all stars
cataclysmic variable	has peak brightness
	has recovery time
	has outburst start time
	has acronym CV
UV Ceti star	has prototype UV Ceti
	has emission line hydrogen
star system	has abundance half the stars in the solar neighborhood are members of star systems
star	has star surface temperature
	has V magnitude
	has B magnitude
	has U magnitude
	has position on celestial sphere from the point of view of Earth
	has parallax from the point of view of Earth's orbit
	has proper motion
	has radiation at surface which is diffused out from the hotter core
	has energy source gravitational contraction and or fusion
	has energy production which takes place primarily within the core
	has surface density which depends on luminosity class
	has surface temperature greater than 1000 Kelvin
	has absolute magnitude
	has age
	has catalog star catalog
	has material hydrogen, helium
	has velocity determined from proper motion and radial velocity
dwarf	has symbol d
	has luminosity class V
celestial body	has spectra
variable	has name designated with R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted V 335, V 336, etc., when the double letter designations are exhausted
	has observational problem some difficulty in distinguishing between various kinds
	has observable variation time scale within a period of decades
	has light curve
	has optical brightness variation 0.2 magnitudes or greater
	has amplitude
physical object	has location or center of gravity
	has angular momentum
	has momentum
	has temperature
	has volume
	has extent

Next binary star: visual binary    Up: binary star, dMe star, flare star    Previous binary star: spectroscopic binary