About: Psi2 Draconis

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Psi2 Draconis is a solitary giant star in the northern circumpolar constellation of Draco, also designated 34 Draconis. It lies just over a degree east of the brighter Psi1 Draconis. Psi2 Draconis has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.45. It is located at a distance of 940 light-years (287 parsecs) from the Sun based on parallax, but is drifting closer with a radial velocity of −2 km/s.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	Psi2 Draconis (en) 34 Draconis (pl) Psi2 Draconis (sv)
rdfs:comment	Psi2 Draconis (ψ² Draconis) är en vit jättestjärna i stjärnbilden Draken. Den befinner sig på 723,2 ljusårs (221 parsec) avstånd från Jorden och kan ses med blotta ögat på norra stjärnhimlen, med en skenbar magnitud på 5,43. (sv) 34 Draconis (34 Dra; także Psi² Draconis) – gwiazda w gwiazdozbiorze Smoka. Jest odległa od Słońca o około 1056 lat świetlnych. (pl) Psi2 Draconis is a solitary giant star in the northern circumpolar constellation of Draco, also designated 34 Draconis. It lies just over a degree east of the brighter Psi1 Draconis. Psi2 Draconis has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.45. It is located at a distance of 940 light-years (287 parsecs) from the Sun based on parallax, but is drifting closer with a radial velocity of −2 km/s. (en)
foaf:name	Psi2 Draconis (en)
dct:subject	Bayer objects Bright Star Catalogue objects Draco (constellation) Durchmusterung objects F-type giants Flamsteed objects Henry Draper Catalogue objects Hipparcos objects
Wikipage page ID	44915309 (xsd:integer)
Wikipage revision ID	1090387824 (xsd:integer)
Link from a Wikipage to another Wikipage	Psi1 Draconis Metallicity Anne Cowley Hydrogen Stellar classification Bayer objects Bright Star Catalogue objects Draco (constellation) Durchmusterung objects F-type giants Flamsteed objects Henry Draper Catalogue objects Hipparcos objects Photosphere Effective temperature Main sequence Stellar spectrum Stellar parallax William P. Bidelman Draco (constellation) International Celestial Reference System J2000.0 Sun Circumpolar constellation Apparent visual magnitude Radial velocity Giant star Mass of the Sun Sun's radius Absorption line Projected rotational velocity Luminosity of the Sun
sameAs	Psi2 Draconis Psi2 Draconis Psi2 Draconis Psi2 Draconis Psi2 Draconis Psi2 Draconis
dbp:wikiPageUsesTemplate	dbt:! dbt:Convert dbt:Other_stars_by_Bayer_designation 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_Draco dbt:Val dbt:DEC dbt:Odlist dbt:RA
age myr	800 (xsd:integer)
appmag v	5.450000 (xsd:double)
b-v	+0.30 (en)
class	F2 III+ or F3 II-III (en)
constell	Draco (constellation)
epoch	J2000.0
equinox	J2000.0 (en)
gravity	2.320000 (xsd:double)
mass	2.020000 (xsd:double)
metal fe	−1.29 (en)
p error	0.083200 (xsd:double)
parallax	3.488800 (xsd:double)
prop mo dec	−2.133 (en)
prop mo ra	+8.545 (en)
radial v	−2.0 (en)
rotational velocity	50 (xsd:integer)
u-b	+0.15 (en)
has abstract	Psi2 Draconis is a solitary giant star in the northern circumpolar constellation of Draco, also designated 34 Draconis. It lies just over a degree east of the brighter Psi1 Draconis. Psi2 Draconis has a yellow-white hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.45. It is located at a distance of 940 light-years (287 parsecs) from the Sun based on parallax, but is drifting closer with a radial velocity of −2 km/s. According to R. O. Gray and associates (2001), the stellar classification of Psi2 Draconis is F2III+; a star that has used up its core hydrogen, cooled, and expanded away from the main sequence. A. P. Cowley and W. P. Bidelman (1979) found a similar class of F3 II-III, with the comment that the spectrum showed "many weak lines". Based on the abundance of iron, the metallicity of this star is much lower than in the Sun. It is about 800 million years old and is spinning with a projected rotational velocity of 50 km/s. The star has double the mass of the Sun but has expanded to 15 times the Sun's radius. It is radiating 448 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 6,925 K. (en) Psi2 Draconis (ψ² Draconis) är en vit jättestjärna i stjärnbilden Draken. Den befinner sig på 723,2 ljusårs (221 parsec) avstånd från Jorden och kan ses med blotta ögat på norra stjärnhimlen, med en skenbar magnitud på 5,43. (sv) 34 Draconis (34 Dra; także Psi² Draconis) – gwiazda w gwiazdozbiorze Smoka. Jest odległa od Słońca o około 1056 lat świetlnych. (pl)
gold:hypernym	Star

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