About: SZ Tauri

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SZ Tauri is a variable star in the equatorial constellation of Taurus. The brightness of this star varies from an apparent visual magnitude of 6.39 down to 6.69 with a period of 3.149 days, which is near the lower limit of visibility to the naked eye. The distance to this star is approximately 2,070 light years based on parallax measurements. There is some indication this may be a binary system, but the evidence is inconclusive.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	SZ Tauri (en)
rdfs:comment	SZ Tauri is a variable star in the equatorial constellation of Taurus. The brightness of this star varies from an apparent visual magnitude of 6.39 down to 6.69 with a period of 3.149 days, which is near the lower limit of visibility to the naked eye. The distance to this star is approximately 2,070 light years based on parallax measurements. There is some indication this may be a binary system, but the evidence is inconclusive. (en)
foaf:depiction
dcterms:subject	Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Objects with variable star designations Taurus (constellation) F-type supergiants Classical Cepheid variables
Wikipage page ID	70294538 (xsd:integer)
Wikipage revision ID	1080976896 (xsd:integer)
Link from a Wikipage to another Wikipage	Binary star Instability strip Stellar classification Light curve Proper motion Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Objects with variable star designations Taurus (constellation) Constellation General Catalogue of Variable Stars Effective temperature NGC 1647 Light year Stellar evolution Stellar pulsation Stellar spectrum Stellar parallax Transiting Exoplanet Survey Satellite F-type supergiants Celestial equator Delta Cephei variable Open cluster Harlow Shapley Henrietta Swan Leavitt Taurus (constellation) Classical Cepheid variables Karl Schwarzschild Classical Cepheid variable Apparent visual magnitude Cepheid variable Variable star Overtone dbr:Wolfgang_Gieren dbr:Yuri_Nicolaevich_Efremov
sameAs	SZ Tauri SZ Tauri
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_image dbt:Starbox_observe dbt:Starbox_reference dbt:Val dbt:± dbt:DEC dbt:Odlist dbt:RA dbt:Taurus_(constellation)
thumbnail	wiki-commons:Special:FilePath/SZTauLightCurve.png?width=300
age myr	69 (xsd:integer)
appmag v	6.390000 (xsd:double) (en)
b-v	0.810000 (xsd:double)
class	F5Ib-F9.5Ib (en)
constell	Taurus (constellation)
epoch	J2000.0 (en)
gravity	2 (xsd:integer)
luminosity	1905 (xsd:integer)
mass	6.100000 (xsd:double)
metal fe	0.080000 (xsd:double)
p error	0.028000 (xsd:double)
parallax	1.574100 (xsd:double)
prop mo dec	−5.232 (en)
prop mo ra	−4.403 (en)
radial v	−1.2 (en)
radius	42.200000 (xsd:double)
temperature	6015 (xsd:integer)
type	Supergiant (en)
variable	Delta Cephei variable
has abstract	SZ Tauri is a variable star in the equatorial constellation of Taurus. The brightness of this star varies from an apparent visual magnitude of 6.39 down to 6.69 with a period of 3.149 days, which is near the lower limit of visibility to the naked eye. The distance to this star is approximately 2,070 light years based on parallax measurements. There is some indication this may be a binary system, but the evidence is inconclusive. The variability of this star was announced by K. Schwarzschild in 1911 and was given a preliminary designation of 41.1910 with a period of 3.1484 d. H. S. Leavitt extended the study up to 1914, producing a light curve with a period of 3.1487 d. A 1916 spectral study by H. Shapley showed that the class of this pulsating Cepheid variable changed along the light curve, ranging from F7 at minimum up to A9 at peak luminosity. suggested in 1964 that this star may be a halo member of the NGC 1647 open cluster, located 2.2° to the northeast. However, this was later disputed based on a poor proper motion match. It was confirmed to be a classical Cepheid by in 1985. In the General Catalogue of Variable Stars, SZ Tau is classified as a Delta Cepheid of type DCEPS, which shows a nearly symmetric light curve with a small amplitude. It is pulsating in the first overtone and in evolutionary terms is undergoing its second crossing of the Cepheid instability strip. By 1987, four changes in the pulsation period of SZ Tau had been observed; the pulsation rate is decreasing by −0.49 s/yr. The star is about 75 million years old with six times the mass of the Sun and 42 times the Sun's radius. The effective temperature, radius, and spectral type of the star vary across each pulsation cycle. (en)
prov:wasDerivedFrom	wikipedia-en:SZ_Tauri?oldid=1080976896&ns=0
page length (characters) of wiki page	12701 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:SZ_Tauri
is Link from a Wikipage to another Wikipage of	List of stars in Taurus
is foaf:primaryTopic of	wikipedia-en:SZ_Tauri

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