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24 Cephei is a single, yellow-hued star in … 24 Cephei is a single, yellow-hued star in the northern circumpolar constellation of Cepheus. With an apparent visual magnitude of 4.79, it is faintly visible to the naked eye. The distance to this star, based upon an annual parallax shift of 8.3965 mas, is around 388 light years. It is moving closer with a heliocentric radial velocity of −17 km/s. Keenan and McNeil (1989) listed a stellar classification of G7 II-III for 24 Cep, matching the spectrum of an evolved G-type star with blended features of a bright giant and a giant star. Older sources list a class of G8 III, which would suggest an ordinary giant star. At the age of 234 million years, it has an estimated 3.5 times the mass of the Sun and has expanded to about 13 times the Sun's radius. The star is radiating 199 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 5,023 K. These coordinates are a source of X-ray emission.oordinates are a source of X-ray emission.
, 24 Cephei, som är stjärnans Flamsteed-bete … 24 Cephei, som är stjärnans Flamsteed-beteckning, är en ensam stjärna i den mellersta delen av stjärnbilden Cepheus. Den har en skenbar magnitud på ca 4,79 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 8,4 mas, beräknas den befinna sig på ett avstånd på ca 394 ljusår (ca 121 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -17 km/s.iocentrisk radialhastighet på ca -17 km/s.
, 仙王座24，又名BD+71 1111，HD 210807、SAO 10265、HR 8468，是仙王座的一颗恒星，视星等为4.79，位于銀經111.28，銀緯13.23，其B1900.0坐标为赤經22h 7m 53.1s，赤緯+71° 13.23′ 55″。
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| rdfs:comment |
24 Cephei, som är stjärnans Flamsteed-bete … 24 Cephei, som är stjärnans Flamsteed-beteckning, är en ensam stjärna i den mellersta delen av stjärnbilden Cepheus. Den har en skenbar magnitud på ca 4,79 och är synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallaxmätning inom Hipparcosuppdraget på ca 8,4 mas, beräknas den befinna sig på ett avstånd på ca 394 ljusår (ca 121 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -17 km/s.iocentrisk radialhastighet på ca -17 km/s.
, 仙王座24，又名BD+71 1111，HD 210807、SAO 10265、HR 8468，是仙王座的一颗恒星，视星等为4.79，位于銀經111.28，銀緯13.23，其B1900.0坐标为赤經22h 7m 53.1s，赤緯+71° 13.23′ 55″。
, 24 Cephei is a single, yellow-hued star in … 24 Cephei is a single, yellow-hued star in the northern circumpolar constellation of Cepheus. With an apparent visual magnitude of 4.79, it is faintly visible to the naked eye. The distance to this star, based upon an annual parallax shift of 8.3965 mas, is around 388 light years. It is moving closer with a heliocentric radial velocity of −17 km/s. heliocentric radial velocity of −17 km/s.
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| rdfs:label |
24 Cephei
, 少卫增三
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