About: HD 152408

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HD 152408, also known as WR 79a, is a Wolf-Rayet star located in the constellation Scorpius, close to the galactic plane. Its distance is around 2,020 parsecs (6,500 lightyears) away from the Earth. HD 152408 lies in the north of the open cluster NGC 6231, the center of the OB association Scorpius OB1; it is not clear whether it is a part of the association or not. With an apparent magnitude of about 5.77, it is the third brightest Wolf-Rayet star. The other Wolf-Rayet stars that can be seen with the naked eye (although it can only be seen with the naked eye under excellent viewing conditions) are γ2 Velorum (WR 11), θ Muscae (WR 48), WR 22, WR 24 and HD 151932 (WR 78).

Attributes	Values
rdf:type	Thing place dbo:Location schema:Place celestial body star
rdfs:label	HD 152408 (en) HD 152408 (sv) HD 152408 (zh)
rdfs:comment	HD 152408，又名CD-4010919，SAO 227425、HR 6272，是一颗恒星，视星等为5.77，位于銀經344.08，銀緯1.49，其B1900.0坐标为赤經16h 47m 59.8s，赤緯-40° 1.49′ 12″。 (zh) HD 152408, also known as WR 79a, is a Wolf-Rayet star located in the constellation Scorpius, close to the galactic plane. Its distance is around 2,020 parsecs (6,500 lightyears) away from the Earth. HD 152408 lies in the north of the open cluster NGC 6231, the center of the OB association Scorpius OB1; it is not clear whether it is a part of the association or not. With an apparent magnitude of about 5.77, it is the third brightest Wolf-Rayet star. The other Wolf-Rayet stars that can be seen with the naked eye (although it can only be seen with the naked eye under excellent viewing conditions) are γ2 Velorum (WR 11), θ Muscae (WR 48), WR 22, WR 24 and HD 151932 (WR 78). (en) HD 152408, även känd som WR 79a, är en ensam stjärna i den södra delen av stjärnbilden Skorpionen. Den har en genomsnittlig skenbar magnitud av ca 5,77 och är den tredje ljusaste Wolf-Rayet-stjärnan. De andra Wolf-Rayet-stjärnorna som kan ses med blotta ögat där ljusföroreningar ej förekommer är γ2 Velorum (WR 11), (WR 48), WR 22, WR 24 och (WR 78). Baserat på parallaxmätning inom Hipparcosuppdraget på ca 1,4 mas, beräknas den befinna sig på ett avstånd på ca 6 500 ljusår (ca 2 020 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca –138 km/s. (sv)
foaf:name	HD 152408 (en)
foaf:depiction
dct:subject	Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Scorpius (constellation) Wolf–Rayet stars
Wikipage page ID	67021810 (xsd:integer)
Wikipage revision ID	1123862857 (xsd:integer)
Link from a Wikipage to another Wikipage	Bright Star Catalog Bright Star Catalogue objects Durchmusterung objects Henry Draper Catalogue objects Hipparcos objects Scorpius (constellation) Constellation Cordoba Durchmusterung Effective temperature Gamma Velorum Theta Muscae Apparent magnitude Star Henry Draper Catalogue WR 22 WR 24 Galactic plane Earth Parsec Open cluster HD 151932 J2000 Bolometric luminosity Wolf–Rayet stars Sun Year Bortle scale Wolf-Rayet star Smithsonian Astrophysical Observatory Star Catalog NGC 6231 Scorpius (constellation) OB association Hipparcos catalogue
sameAs	HD 152408 HD 152408 HD 152408 HD 152408
dbp:wikiPageUsesTemplate	dbt:Clear_left dbt:Reflist dbt:Short_description dbt:Solar_luminosity dbt:Solar_mass 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:Stars_of_Scorpius dbt:Val dbt:DEC dbt:Location_mark dbt:RA
thumbnail	wiki-commons:Special:FilePath/Scorpius_constellation_map.svg?width=300
absmag v	−7.1 (en)
appmag v	5.810000 (xsd:double)
b-v	0.017000 (xsd:double)
class	WN9ha (en)
constell	Scorpius (constellation)
epoch	J2000
luminosity bolometric	603000 (xsd:integer)
mass	24.400000 (xsd:double)
p error	0.340000 (xsd:double)
parallax	1.440000 (xsd:double)
prop mo dec	−2.25 (en)
prop mo ra	0.470000 (xsd:double)
radial v	−138 (en)
radius	32 (xsd:integer)
temperature	35000 (xsd:integer)
u-b	−0.8 (en)
variable	Wolf-Rayet star
has abstract	HD 152408, also known as WR 79a, is a Wolf-Rayet star located in the constellation Scorpius, close to the galactic plane. Its distance is around 2,020 parsecs (6,500 lightyears) away from the Earth. HD 152408 lies in the north of the open cluster NGC 6231, the center of the OB association Scorpius OB1; it is not clear whether it is a part of the association or not. With an apparent magnitude of about 5.77, it is the third brightest Wolf-Rayet star. The other Wolf-Rayet stars that can be seen with the naked eye (although it can only be seen with the naked eye under excellent viewing conditions) are γ2 Velorum (WR 11), θ Muscae (WR 48), WR 22, WR 24 and HD 151932 (WR 78). HD 152408 is about 24 times as massive as the Sun. Like most extremely massive stars, it is losing mass via its stellar wind. The total rate of mass loss is 2.4×10−5 M☉/yr. With an effective temperature of 35,000 K, its bolometric luminosity is more than 600,000 L☉. (en)

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