About: 15 Sagittarii

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15 Sagittarii is a blue-hued binary star system in the southern zodiac constellation of Sagittarius. The estimated distance based upon photometry is around 4,200 ly (1,300 pc). It is faintly visible to the naked eye with an apparent visual magnitude of 5.37. The system is moving closer to the Sun with a heliocentric radial velocity of around −6 km/s. The Washington Double Star Catalog lists four companions within a 2 arcsecond angular radius.

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body yago:WikicatB-typeStars yago:WikicatB-typeSupergiants yago:WikicatMultipleStars yago:CelestialBody109239740 yago:MultipleStar109363064 yago:NaturalObject100019128 yago:Object100002684 yago:PhysicalEntity100001930 star yago:Star109444100 yago:Supergiant109450708 yago:Whole100003553 yago:WikicatFlamsteedObjects
rdfs:label	15 Sagittarii (en) 15 Sagittarii (fr) 15 Sagittarii (it) 15 Sagittarii (sv)
rdfs:comment	15 Sagittarii (en abrégé 15 Sgr) est une étoile multiple située dans la constellation du Sagittaire dont la composante principale est une supergéante bleue de type spectral O9.7 Iab. (fr) 15 Sagittarii è una Supergigante blu, che è la componente più brillante di una Associazione OB detta Regione di Sagittarius OB7, che dista circa 5540 al (circa 1700 pc) dal nostro Sistema solare. Presenta una magnitudine pari a 5,29 ed è situata nella costellazione del Sagittario. (it) 15 Sagittarii, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna, belägen i den norra delen av stjärnbilden Skytten. Den har en skenbar magnitud på 5,37 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på fotometrisk observation uppskattas den befinna sig på ett avstånd på ca 4 200 ljusår (ca 1 300 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -6 km/s. (sv) 15 Sagittarii is a blue-hued binary star system in the southern zodiac constellation of Sagittarius. The estimated distance based upon photometry is around 4,200 ly (1,300 pc). It is faintly visible to the naked eye with an apparent visual magnitude of 5.37. The system is moving closer to the Sun with a heliocentric radial velocity of around −6 km/s. The Washington Double Star Catalog lists four companions within a 2 arcsecond angular radius. (en)
foaf:name	15 Sagittarii (en)
dcterms:subject	Bright Star Catalogue objects Durchmusterung objects Flamsteed objects Henry Draper Catalogue objects Hipparcos objects O-type supergiants Sagittarius (constellation) Spectroscopic binaries
Wikipage page ID	31010594 (xsd:integer)
Wikipage revision ID	1079519690 (xsd:integer)
Link from a Wikipage to another Wikipage	Angular radius Binary star Stellar classification 16 Sagittarii Bright Star Catalogue objects Durchmusterung objects Flamsteed objects Henry Draper Catalogue objects Hipparcos objects O-type supergiants Sagittarius (constellation) Spectroscopic binaries Constellation Sagittarius (constellation) O-type star Photometry (astronomy) H II region Arcsecond Supergiant star Zodiac Spectroscopic binary Apparent visual magnitude Radial velocity Washington Double Star Catalog Molecular cloud
sameAs	15 Sagittarii 15 Sagittarii 15 Sagittarii 15 Sagittarii 15 Sagittarii 15 Sagittarii 15 Sagittarii
dbp:wikiPageUsesTemplate	dbt:Convert 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_Sagittarius dbt:Val dbt:DEC dbt:Odlist dbt:RA
appmag v	5.370000 (xsd:double)
class	O9.7 Iab or B0 Iab (en)
component	15 (xsd:integer)
constell	Sagittarius (constellation)
epoch	J2000 (en)
gravity	3.100000 (xsd:double)
mass	~30 (en)
p error	0.450000 (xsd:double)
parallax	0.100000 (xsd:double)
prop mo dec	−1.51 (en)
prop mo ra	+1.60 (en)
has abstract	15 Sagittarii is a blue-hued binary star system in the southern zodiac constellation of Sagittarius. The estimated distance based upon photometry is around 4,200 ly (1,300 pc). It is faintly visible to the naked eye with an apparent visual magnitude of 5.37. The system is moving closer to the Sun with a heliocentric radial velocity of around −6 km/s. Chini et al. (2012) identify this as a double-lined spectroscopic binary star system. It shows a stellar classification of O9.7 Iab, matching a massive O-type supergiant star. Along with the O-type star 16 Sgr (HD 167263), it is ionizing an H II region along the western edge of the molecular cloud L291. The Washington Double Star Catalog lists four companions within a 2 arcsecond angular radius. (en) 15 Sagittarii (en abrégé 15 Sgr) est une étoile multiple située dans la constellation du Sagittaire dont la composante principale est une supergéante bleue de type spectral O9.7 Iab. (fr) 15 Sagittarii è una Supergigante blu, che è la componente più brillante di una Associazione OB detta Regione di Sagittarius OB7, che dista circa 5540 al (circa 1700 pc) dal nostro Sistema solare. Presenta una magnitudine pari a 5,29 ed è situata nella costellazione del Sagittario. (it) 15 Sagittarii, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna, belägen i den norra delen av stjärnbilden Skytten. Den har en skenbar magnitud på 5,37 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på fotometrisk observation uppskattas den befinna sig på ett avstånd på ca 4 200 ljusår (ca 1 300 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -6 km/s. (sv)

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