About: 2 Sextantis

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2 Sextantis is a single star that is now in the equatorial constellation Hydra, located around 295 light years away from the Sun. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.68. This object is moving further from the Earth with a heliocentric radial velocity of +44.6 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.173″ per year.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body yago:Animal100015388 yago:Giant101323781 yago:LivingThing100004258 yago:Object100002684 yago:Organism100004475 yago:PhysicalEntity100001930 yago:WikicatK-typeGiants star yago:Whole100003553 yago:WikicatFlamsteedObjects
rdfs:label	2 Sextantis (en) 2 Sextantis (es) 2 Sextantis (sv) HD 83425 (zh)
rdfs:comment	2 Sextantis är en orange jätte i Vattenormens stjärnbild. Trots sin Flamsteed-beteckning tillhör den inte Sextantens stjärnbild. Den ligger på gränsen mellan stjärnbilderna och fick byta tillhörighet vid översynen av gränser mellan stjärnbilderna år 1930 och benämns efter bytet av stjärnbild ofta med sin HD-beteckning, HD 83425. 2 Sextantis har visuell magnitud +4,68 och är synlig för blotta ögat vid normal seeing. Den befinner sig på ett avstånd av ungefär 295 ljusår. (sv) HD 83425，又名BD+05 2207，SAO 117821、HR 3834，是一颗恒星，视星等为4.68，位于銀經230.16，銀緯38.88，其B1900.0坐标为赤經9h 33m 14.3s，赤緯+5° 38.88′ 4″。 (zh) 2 Sextantis is a single star that is now in the equatorial constellation Hydra, located around 295 light years away from the Sun. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.68. This object is moving further from the Earth with a heliocentric radial velocity of +44.6 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.173″ per year. (en) 2 Sextantis (2 Sex / HD 83425) es una estrella de magnitud aparente +4,69. Pese a su nombre, no se localiza dentro la constelación de Sextans, el sextante, sino en la vecina Hidra.De acuerdo a la nueva reducción de los datos de paralaje de Hipparcos, se encuentra a 295 ± 8 años luz de distancia del Sistema Solar. (es)
dcterms:subject	Bright Star Catalogue objects Durchmusterung objects Flamsteed objects Henry Draper Catalogue objects Hipparcos objects Hydra (constellation) K-type giants
Wikipage page ID	37132821 (xsd:integer)
Wikipage revision ID	1079516017 (xsd:integer)
Link from a Wikipage to another Wikipage	Hydra (constellation) Stellar classification Proper motion Bright Star Catalogue objects Durchmusterung objects Flamsteed objects Henry Draper Catalogue objects Hipparcos objects Hydra (constellation) K-type giants Constellation Photosphere Effective temperature Light year Main sequence Star Stellar evolution Celestial equator Celestial sphere Stellar core International Celestial Reference System J2000.0 Apparent visual magnitude Radial velocity Giant star Mass of the Sun Sun's radius Luminosity of the Sun
sameAs	2 Sextantis 2 Sextantis 2 Sextantis 2 Sextantis 2 Sextantis 2 Sextantis 2 Sextantis 2 Sextantis
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Short_description dbt:Starbox_astrometry dbt:Starbox_begin dbt:Starbox_catalog dbt:Starbox_character dbt:Starbox_detail dbt:Starbox_end dbt:Starbox_observe dbt:Starbox_reference dbt:Stars_of_Hydra dbt:Val dbt:DEC dbt:Odlist dbt:RA
absmag v	−0.10 (en)
age gyr	4.580000 (xsd:double)
appmag v	4.680000 (xsd:double)
class	K3 III (en)
constell	Hydra (constellation)
epoch	J2000.0 (en)
luminosity	190.500000 (xsd:double)
mass	1.320000 (xsd:double)
p error	0.270000 (xsd:double)
parallax	11.040000 (xsd:double)
prop mo dec	−50.88 (en)
prop mo ra	−163.18 (en)
radius	24 (xsd:integer)
rotational velocity	3 (xsd:integer)
type	giant (en)
has abstract	2 Sextantis is a single star that is now in the equatorial constellation Hydra, located around 295 light years away from the Sun. It is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.68. This object is moving further from the Earth with a heliocentric radial velocity of +44.6 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.173″ per year. This is a giant star with a stellar classification of K3 III, which, at the age of 4.58 billion years old, has exhausted the hydrogen at its core and evolved away from the main sequence. The star has 1.32 times the mass of the Sun and has expanded to 24 times the Sun's radius. It is radiating 190.5 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,188 K. (en) 2 Sextantis (2 Sex / HD 83425) es una estrella de magnitud aparente +4,69. Pese a su nombre, no se localiza dentro la constelación de Sextans, el sextante, sino en la vecina Hidra.De acuerdo a la nueva reducción de los datos de paralaje de Hipparcos, se encuentra a 295 ± 8 años luz de distancia del Sistema Solar. Como otras muchas estrellas del cielo nocturno —por ejemplo Alfard (α Hydrae), ν Hydrae o π Hydrae, todas en la constelación de Hidra— 2 Sextantis es una gigante naranja.Tiene tipo espectral K3III y una temperatura efectiva de 4120 K.Su diámetro angular, medido de forma indirecta en distintas longitudes de onda y considerando el , es de 2,64 ± 0,03 milisegundos de arco; ello permite evaluar su diámetro real, resultando ser éste 26 veces más grande que el diámetro solar, valor que concuerda bien con el obtenido por modelos teóricos (24 radios solares).Muestra una metalicidad —abundancia relativa de elementos más pesados que el helio— aproximadamente la mitad de la que tiene el Sol ([Fe/H] = -0,29).Es 182 veces más luminosa que el Sol y tiene una masa estimada un 34% mayor que la masa solar. (es)

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