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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″。
, HD 152408, also known as WR 79a, is a Wolf … 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☉.metric luminosity is more than 600,000 L☉.
, HD 152408, även känd som WR 79a, är en ens … 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. HD 152408 ligger i norra delen av den öppna stjärnhopen , centrum för OB-föreningen Scorpius OB1, men det är oklart huruvida den är en del av föreningen.lart huruvida den är en del av föreningen.
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| 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″。
, HD 152408, även känd som WR 79a, är en ens … 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.ocentrisk radialhastighet på ca –138 km/s.
, HD 152408, also known as WR 79a, is a Wolf … 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).R 48), WR 22, WR 24 and HD 151932 (WR 78).
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