About: 69 Herculis

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69 Herculis is a binary star system in the northern constellation Hercules. It has the Bayer designation e Herculis, while 69 Herculis is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with a combined apparent visual magnitude of 4.63. The distance to this system can be estimated from parallax measurements, which yields a range of 175 light years. It is moving closer to the Earth with a heliocentric radial velocity of −10 km/s.

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dbo:abstract
  • 69 Herculis is a binary star system in the northern constellation Hercules. It has the Bayer designation e Herculis, while 69 Herculis is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with a combined apparent visual magnitude of 4.63. The distance to this system can be estimated from parallax measurements, which yields a range of 175 light years. It is moving closer to the Earth with a heliocentric radial velocity of −10 km/s. The magnitude 4.66 primary, designated component A, is an A-type main-sequence star with a stellar classification of A2V. It is 155 million years old with 2.12 times the mass of the Sun. The star is spinning with a projected rotational velocity of 155 km/s, which is creating an equatorial bulge that is 5% larger than the star's polar radius. It is about 2.2 times the size of the Sun and is radiating 37 times the Sun's luminosity from its photosphere at an effective temperature of 9,141 K. The secondary, component B, is magnitude 8.68 star with an angular separation of 0.840″ from the primary, as of 2008. X-ray emission has been detected from this system. As A-type stars are not expected to be X-ray sources, this emission is most likely coming from the companion. (en)
  • 69 Herculis (e Herculis) é uma estrela na direção da Hercules. Possui uma ascensão reta de 17h 17m 40.29s e uma declinação de +37° 17′ 28.8″. Sua magnitude aparente é igual a 4.64. Considerando sua distância de 178 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.96. Pertence à classe espectral A2V. (pt)
  • 69 Herculis, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna i den mellersta delen av stjärnbilden Herkules, som också har Bayer-beteckningen e Herculis. Den har en kombinerad skenbar magnitud på ca 4,63 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 18,6 mas, beräknas den befinna sig på ett avstånd på ca 175 ljusår (ca 54 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca –10 km/s. (sv)
  • 69 Геркулеса (лат. 69 Herculis), e Геркулеса (лат. e Herculis), HD 156729 — тройная звезда в созвездии Геркулеса на расстоянии (вычисленном из значения параллакса) приблизительно 175 световых лет (около 53,6 парсек) от Солнца. Возраст звезды определён как около 155 млн лет. (ru)
  • 武仙座69,又名BD+37 2864,HD 156729、SAO 65921、HR 6436,是武仙座的一颗恒星,视星等为4.65,位于銀經61.35,銀緯33.91,其B1900.0坐标为赤經17h 14m 13.3s,赤緯+37° 33.91′ 46″。 (zh)
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dbp:absmagV
  • 0.990000 (xsd:double)
dbp:ageMyr
  • 155 (xsd:integer)
dbp:appmagV
  • 4.630000 (xsd:double)
  • (en)
dbp:class
  • A2V (en)
dbp:component
  • 69 (xsd:integer)
dbp:constell
dbp:epoch
  • J2000 (en)
dbp:gravity
  • 4.020000 (xsd:double)
dbp:luminosity
  • 36.640000 (xsd:double)
dbp:mass
  • 2.120000 (xsd:double)
dbp:metalFe
  • 0.290000 (xsd:double)
dbp:pError
  • 0.330000 (xsd:double)
dbp:parallax
  • 18.590000 (xsd:double)
dbp:propMoDec
  • +64.36 (en)
dbp:propMoRa
  • −43.05 (en)
dbp:radius
  • 2.200000 (xsd:double)
dbp:rotationalVelocity
  • 141 (xsd:integer)
dbp:temperature
  • 9141 (xsd:integer)
dbp:type
  • main sequence (en)
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rdfs:comment
  • 69 Herculis (e Herculis) é uma estrela na direção da Hercules. Possui uma ascensão reta de 17h 17m 40.29s e uma declinação de +37° 17′ 28.8″. Sua magnitude aparente é igual a 4.64. Considerando sua distância de 178 anos-luz em relação à Terra, sua magnitude absoluta é igual a 0.96. Pertence à classe espectral A2V. (pt)
  • 69 Herculis, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna i den mellersta delen av stjärnbilden Herkules, som också har Bayer-beteckningen e Herculis. Den har en kombinerad skenbar magnitud på ca 4,63 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 18,6 mas, beräknas den befinna sig på ett avstånd på ca 175 ljusår (ca 54 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca –10 km/s. (sv)
  • 69 Геркулеса (лат. 69 Herculis), e Геркулеса (лат. e Herculis), HD 156729 — тройная звезда в созвездии Геркулеса на расстоянии (вычисленном из значения параллакса) приблизительно 175 световых лет (около 53,6 парсек) от Солнца. Возраст звезды определён как около 155 млн лет. (ru)
  • 武仙座69,又名BD+37 2864,HD 156729、SAO 65921、HR 6436,是武仙座的一颗恒星,视星等为4.65,位于銀經61.35,銀緯33.91,其B1900.0坐标为赤經17h 14m 13.3s,赤緯+37° 33.91′ 46″。 (zh)
  • 69 Herculis is a binary star system in the northern constellation Hercules. It has the Bayer designation e Herculis, while 69 Herculis is the Flamsteed designation. This object is visible to the naked eye as a faint, white-hued star with a combined apparent visual magnitude of 4.63. The distance to this system can be estimated from parallax measurements, which yields a range of 175 light years. It is moving closer to the Earth with a heliocentric radial velocity of −10 km/s. (en)
rdfs:label
  • 69 Herculis (en)
  • 69 Herculis (pt)
  • 69 Геркулеса (ru)
  • 69 Herculis (sv)
  • 女床二 (zh)
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