About: HD 187923

An Entity of Type: star, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

HD 187923 is a suspected variable star in the equatorial constellation of Aquila. It is a dim star that is just visible to the naked eye, having an apparent visual magnitude of 6.148. Based upon an annual parallax shift of 37.04 mas, it is located 88 light years away. The star is moving closer to the Earth with a heliocentric radial velocity of −20.7 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.480″ per year.

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dbo:abstract
  • HD 187923 is a suspected variable star in the equatorial constellation of Aquila. It is a dim star that is just visible to the naked eye, having an apparent visual magnitude of 6.148. Based upon an annual parallax shift of 37.04 mas, it is located 88 light years away. The star is moving closer to the Earth with a heliocentric radial velocity of −20.7 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.480″ per year. This is an ordinary G-type main-sequence star with a stellar classification of G0 V. It has some similarities to the Sun, and thus is considered a solar analog. Brewer et al. (2016) estimate the star has 1.3 times the mass of the Sun and 1.44 times the Sun's radius. It is thought to be around 9 billion years old and is spinning slowly with a projected rotational velocity of 0.1 km/s. The star is radiating double the Sun's luminosity from its photosphere at an effective temperature of 5,774 K. Casagrande et al. (2011) gave a much lower mass estimate of 1.02 times the Sun's mass with an age of around 10.2 billion years. (en)
  • HD 187923 è una stella nana gialla nella sequenza principale di magnitudine 6,1 situata nella costellazione dell'Aquila. Dista 90 anni luce dal sistema solare. (it)
  • HD 187923 är en ensam stjärna belägen i den norra delen av stjärnbilden Örnen. Den har en skenbar magnitud av ca 6,15 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 37,0 mas, beräknas den befinna sig på ett avstånd på ca 88 ljusår (ca 27 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -21 km/s. Den har en relativt stor egenrörelse och rör sig över himlavalvet med en beräknad vinkelhastighet av 0,480 bågsekunder per år. (sv)
  • HD 187923，又名BD+11 4019，SAO 105348、HR 7569，是一颗恒星，视星等为6.13，位于銀經50.33，銀緯-7.82，其B1900.0坐标为赤經19h 47m 22.5s，赤緯+11° -7.82′ 52″。 (zh)
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  • 3.940000 (xsd:double)
dbp:ageGyr
  • or 10.2 (en)
dbp:appmagV
  • 6.148000 (xsd:double)
dbp:bV
  • +0.65 (en)
dbp:class
  • G0 V (en)
dbp:constell
dbp:epoch
  • J2000 (en)
dbp:gravity
  • 4.230000 (xsd:double)
dbp:mass
  • or 1.02 (en)
dbp:metalFe
  • −0.11 (en)
dbp:pError
  • 0.052900 (xsd:double)
dbp:parallax
  • 37.042700 (xsd:double)
dbp:propMoDec
  • -334.608000 (xsd:double)
dbp:propMoRa
  • −344.185 (en)
dbp:rotationalVelocity
  • 0.100000 (xsd:double)
dbp:temperature
  • 5774 (xsd:integer)
dbp:uB
  • +0.12 (en)
dbp:variable
  • suspected (en)
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rdfs:comment
  • HD 187923 è una stella nana gialla nella sequenza principale di magnitudine 6,1 situata nella costellazione dell'Aquila. Dista 90 anni luce dal sistema solare. (it)
  • HD 187923 är en ensam stjärna belägen i den norra delen av stjärnbilden Örnen. Den har en skenbar magnitud av ca 6,15 och är mycket svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 37,0 mas, beräknas den befinna sig på ett avstånd på ca 88 ljusår (ca 27 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -21 km/s. Den har en relativt stor egenrörelse och rör sig över himlavalvet med en beräknad vinkelhastighet av 0,480 bågsekunder per år. (sv)
  • HD 187923，又名BD+11 4019，SAO 105348、HR 7569，是一颗恒星，视星等为6.13，位于銀經50.33，銀緯-7.82，其B1900.0坐标为赤經19h 47m 22.5s，赤緯+11° -7.82′ 52″。 (zh)
  • HD 187923 is a suspected variable star in the equatorial constellation of Aquila. It is a dim star that is just visible to the naked eye, having an apparent visual magnitude of 6.148. Based upon an annual parallax shift of 37.04 mas, it is located 88 light years away. The star is moving closer to the Earth with a heliocentric radial velocity of −20.7 km/s. It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.480″ per year. (en)
rdfs:label
  • HD 187923 (en)
  • HD 187923 (it)
  • HD 187923 (sv)
  • HD 187923 (zh)
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foaf:name
  • HD 187923 (en)
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