About: HD 57197

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HD 57197, also known as M Puppis or HR 2789, is a suspected astrometric binary located in the southern constellation Puppis, the poop deck. It has an apparent magnitude of 5.84, making it faintly visible to the naked eye under ideal conditions. Based on parallax measurements from the Gaia satellite, the system is estimated to be 629 light years away from the Solar System. The value is poorly constrained, but it appears to be receding with a heliocentric radial velocity of 13 km/s. At its current distance, HD 57197's brightness is diminished by 0.3 magnitudes due to interstellar dust. It has an absolute magnitude of -0.43.

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  • HD 57197, also known as M Puppis or HR 2789, is a suspected astrometric binary located in the southern constellation Puppis, the poop deck. It has an apparent magnitude of 5.84, making it faintly visible to the naked eye under ideal conditions. Based on parallax measurements from the Gaia satellite, the system is estimated to be 629 light years away from the Solar System. The value is poorly constrained, but it appears to be receding with a heliocentric radial velocity of 13 km/s. At its current distance, HD 57197's brightness is diminished by 0.3 magnitudes due to interstellar dust. It has an absolute magnitude of -0.43. The visible component has a stellar classification of B8 II/III, indicating that it is an evolved B-type star with the blended luminosity class of a bright giant and a giant star. HD 57197 is estimated to be 220 million years old, enough time for it to expand to 3.9 times the Sun's radius. It has 3.08 times the mass of the Sun and radiates 234 times the luminosity of the Sun from its photosphere at an effective temperature of 12,596 K, giving it a bluish-white hue. Based on its extinction in the Gaia passband, it has an iron abundance 66% that of the Sun. This makes HD 57197 metal deficent. (en)
  • HD 57197 (nota anche come M Puppis) è una stella gigante azzurra di magnitudine 5,84 situata nella costellazione della Poppa. Dista 621 anni luce dal sistema solare. (it)
  • HD 57197 är en ensam stjärna belägen i den södra delen av stjärnbilden Akterskeppet, som också har Bayer-beteckningen M Puppis. Den har en skenbar magnitud av ca 5,84 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 5,5 mas, beräknas den befinna sig på ett avstånd på ca 590 ljusår (ca 181 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 13 km/s. (sv)
  • 85 Puppis (M Puppis) é uma estrela na direção da Puppis. Possui uma ascensão reta de 07h 18m 04.26s e uma declinação de −43° 59′ 12.4″. Sua magnitude aparente é igual a 5.86. Considerando sua distância de 621 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.54. Pertence à classe espectral B8II/III. (pt)
  • HD57197 — хімічно пекулярна зоря спектрального класу B9, що має видиму зоряну величину в смузі V приблизно 5,8.Вона розташована на відстані близько 621,3 світлових років від Сонця. (uk)
  • HD 57197,又名CD-43 3093,SAO 218618、HR 2789,是一颗恒星,视星等为5.85,位于銀經255.49,銀緯-14.03,其B1900.0坐标为赤經7h 14m 58.4s,赤緯-43° -14.03′ 15″。 (zh)
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  • −0.43 (en)
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dbp:bV
  • −0.14 (en)
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  • B8 II/III (en)
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dbp:epoch
  • J2000 (en)
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  • 3.770000 (xsd:double)
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  • 234 (xsd:integer)
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  • 3.080000 (xsd:double)
dbp:metalFe
  • −0.18 (en)
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  • −9.483 (en)
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  • −9.483 (en)
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dbp:uB
  • −0.47 (en)
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  • HD 57197 (nota anche come M Puppis) è una stella gigante azzurra di magnitudine 5,84 situata nella costellazione della Poppa. Dista 621 anni luce dal sistema solare. (it)
  • HD 57197 är en ensam stjärna belägen i den södra delen av stjärnbilden Akterskeppet, som också har Bayer-beteckningen M Puppis. Den har en skenbar magnitud av ca 5,84 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 5,5 mas, beräknas den befinna sig på ett avstånd på ca 590 ljusår (ca 181 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet på ca 13 km/s. (sv)
  • 85 Puppis (M Puppis) é uma estrela na direção da Puppis. Possui uma ascensão reta de 07h 18m 04.26s e uma declinação de −43° 59′ 12.4″. Sua magnitude aparente é igual a 5.86. Considerando sua distância de 621 anos-luz em relação à Terra, sua magnitude absoluta é igual a −0.54. Pertence à classe espectral B8II/III. (pt)
  • HD57197 — хімічно пекулярна зоря спектрального класу B9, що має видиму зоряну величину в смузі V приблизно 5,8.Вона розташована на відстані близько 621,3 світлових років від Сонця. (uk)
  • HD 57197,又名CD-43 3093,SAO 218618、HR 2789,是一颗恒星,视星等为5.85,位于銀經255.49,銀緯-14.03,其B1900.0坐标为赤經7h 14m 58.4s,赤緯-43° -14.03′ 15″。 (zh)
  • HD 57197, also known as M Puppis or HR 2789, is a suspected astrometric binary located in the southern constellation Puppis, the poop deck. It has an apparent magnitude of 5.84, making it faintly visible to the naked eye under ideal conditions. Based on parallax measurements from the Gaia satellite, the system is estimated to be 629 light years away from the Solar System. The value is poorly constrained, but it appears to be receding with a heliocentric radial velocity of 13 km/s. At its current distance, HD 57197's brightness is diminished by 0.3 magnitudes due to interstellar dust. It has an absolute magnitude of -0.43. (en)
rdfs:label
  • HD 57197 (en)
  • HD 57197 (it)
  • 85 Puppis (pt)
  • HD 57197 (sv)
  • HD57197 (uk)
  • HD 57197 (zh)
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  • HD57197 (en)
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