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建四，又名BD-19 5379，HD 180540、SAO 162413、HR 7304、人馬座43、人馬座d，是人馬座的一颗恒星，视星等为4.96，位于銀經18.61，銀緯-14.13，其B1900.0坐标为赤經19h 11m 47s，赤緯-19° -14.13′ 51″。
, 43 Sagittarii is a single star in the sout … 43 Sagittarii is a single star in the southern constellation of Sagittarius. It has the Bayer designation d Sagittarii, while 43 Sagittarii is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.88. From parallax measurements, it is estimated to lie around 470 light years away from the Sun. The star is drifting further from the Earth with a heliocentric radial velocity of +15.2 km/s. It is located near the ecliptic and thus is subject to lunar occultations. This is an aging giant/bright giant star with a stellar classification of G8II-III, and is most likely (97% chance) on the horizontal branch. It is around 350 million years old with 3.3 times the mass of the Sun. Having exhausted the supply of hydrogen at its core, the star has expanded to 24 times the Sun's radius and is now generating energy through core helium fusion. It is radiating 277 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,813 K.re at an effective temperature of 4,813 K.
, 43 Sagittarii, som är stjärnans Flamsteed- … 43 Sagittarii, som är stjärnans Flamsteed-beteckning, är en ensam stjärna, belägen i den norra delen av stjärnbilden Skytten och har även Bayer-beteckningen d Sagittarii. Den har en skenbar magnitud på 4,88 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 7,0 mas, beräknas den befinna sig på ett avstånd på ca 470 ljusår (ca 144 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 15 km/s. Stjärnans position nära ekliptikan innebär att den är föremål för ockultationer med månen.en är föremål för ockultationer med månen.
, 43 Sagittarii è una stella gigante arancione di magnitudine 4,88 situata nella costellazione del Sagittario. Dista circa 481 anni luce dal sistema solare.
, 43 Sagittarii (d Sagittarii) é uma estrela … 43 Sagittarii (d Sagittarii) é uma estrela na direção da Sagittarius. Possui uma ascensão reta de 19h 17m 38.09s e uma declinação de −18° 57′ 10.4″. Sua magnitude aparente é igual a 4.88. Considerando sua distância de 535 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.20. Pertence à classe espectral K0III. −1.20. Pertence à classe espectral K0III.
, 43 Sagittarii est une étoile géante jaune … 43 Sagittarii est une étoile géante jaune de magnitude 4,88 située dans la constellation du Sagittaire. Elle est située à environ ∼470 a.l. (∼144 pc) du Système solaire. Elle porte également la désignation de Bayer de d Sagittarii, 43 Sgaittarii étant quant à elle sa désignation de Flamsteed. quant à elle sa désignation de Flamsteed.
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建四，又名BD-19 5379，HD 180540、SAO 162413、HR 7304、人馬座43、人馬座d，是人馬座的一颗恒星，视星等为4.96，位于銀經18.61，銀緯-14.13，其B1900.0坐标为赤經19h 11m 47s，赤緯-19° -14.13′ 51″。
, 43 Sagittarii (d Sagittarii) é uma estrela … 43 Sagittarii (d Sagittarii) é uma estrela na direção da Sagittarius. Possui uma ascensão reta de 19h 17m 38.09s e uma declinação de −18° 57′ 10.4″. Sua magnitude aparente é igual a 4.88. Considerando sua distância de 535 anos-luz em relação à Terra, sua magnitude absoluta é igual a −1.20. Pertence à classe espectral K0III. −1.20. Pertence à classe espectral K0III.
, 43 Sagittarii è una stella gigante arancione di magnitudine 4,88 situata nella costellazione del Sagittario. Dista circa 481 anni luce dal sistema solare.
, 43 Sagittarii is a single star in the sout … 43 Sagittarii is a single star in the southern constellation of Sagittarius. It has the Bayer designation d Sagittarii, while 43 Sagittarii is the Flamsteed designation. This object is visible to the naked eye as a faint, yellow-hued star with an apparent visual magnitude of 4.88. From parallax measurements, it is estimated to lie around 470 light years away from the Sun. The star is drifting further from the Earth with a heliocentric radial velocity of +15.2 km/s. It is located near the ecliptic and thus is subject to lunar occultations.and thus is subject to lunar occultations.
, 43 Sagittarii est une étoile géante jaune … 43 Sagittarii est une étoile géante jaune de magnitude 4,88 située dans la constellation du Sagittaire. Elle est située à environ ∼470 a.l. (∼144 pc) du Système solaire. Elle porte également la désignation de Bayer de d Sagittarii, 43 Sgaittarii étant quant à elle sa désignation de Flamsteed. quant à elle sa désignation de Flamsteed.
, 43 Sagittarii, som är stjärnans Flamsteed- … 43 Sagittarii, som är stjärnans Flamsteed-beteckning, är en ensam stjärna, belägen i den norra delen av stjärnbilden Skytten och har även Bayer-beteckningen d Sagittarii. Den har en skenbar magnitud på 4,88 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 7,0 mas, beräknas den befinna sig på ett avstånd på ca 470 ljusår (ca 144 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 15 km/s. Stjärnans position nära ekliptikan innebär att den är föremål för ockultationer med månen.en är föremål för ockultationer med månen.
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43 Sagittarii
, 建四
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