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54 Ceti is an older Flamsteed designation … 54 Ceti is an older Flamsteed designation for a star that is now located within the constellation boundaries of Aries, the Ram. In the present day it is known by star catalogue identifiers like HD 11257 or HR 534. At an apparent visual magnitude of 5.94, it can be seen with the naked eye. The distance to this star, as determined using parallax measurements made during the Hipparcos mission, is approximately 139 light-years (43 parsecs), give or take a 6 light-year margin of error. It is located near the ecliptic and hence is subject to occasional occultation by the Moon. This is an F-type main sequence star with a stellar classification of F2 Vw, where the 'w' indicates weak absorption lines in the spectrum. The star is around 582 million years old with a projected rotational velocity of 29 km/s. It has 1.5 times the mass of the Sun and 1.6 times the Sun's radius. The star is radiating six times the luminosity of the Sun from its photosphere at an effective temperature of 7,099 K. It is a candidate member of the Ursa Major Moving Group, which has an estimated age of 500 ± 100 million years. estimated age of 500 ± 100 million years.
, 54 Ceti è la tradizionale nomenclatura di … 54 Ceti è la tradizionale nomenclatura di Flamsteed attribuita a una stella bianca di sequenza principale di magnitudine 5,93 situata però nella costellazione dell'Ariete. È nota anche con le designazioni HR 534, HD 11257 o SAO 92659. Dista 137 anni luce dal sistema solare.9. Dista 137 anni luce dal sistema solare.
, 54 Ceti, som är stjärnans äldre Flamsteed- … 54 Ceti, som är stjärnans äldre Flamsteed-beteckning, är en ensam stjärna nu belägen i den södra delen av stjärnbilden Väduren, idag även känd under stjärnkatalogbeteckningar som HD 11257 eller HR 534. Trots sin Flamsteed-beteckning tillhör den inte Valfiskens stjärnbild. Den ligger på gränsen mellan stjärnbilderna och fick byta tillhörighet vid översynen av gränser mellan stjärnbilderna år 1930. Den har en genomsnittlig skenbar magnitud på ca 5,94 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 23,8 mas, beräknas den befinna sig på ett avstånd på ca 137 ljusår (ca 42 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 11 km/s. Stjärnan ligger nära ekliptikan, vilket gör att den kan vara föremål för ockultationer av månen och antas tillhöra rörelsegruppen Ursa Major, som har en beräknad ålder på 500 ± 100 miljoner år.n beräknad ålder på 500 ± 100 miljoner år.
, 右更增三，即鲸鱼座54（54 Ceti），是一颗位于白羊座的变星，虽然它是以鲸鱼座命名，但实际上却是位于白羊座靠近鲸鱼座的边界处。它距离地球约139光年， 视星等为5.933。
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右更增三，即鲸鱼座54（54 Ceti），是一颗位于白羊座的变星，虽然它是以鲸鱼座命名，但实际上却是位于白羊座靠近鲸鱼座的边界处。它距离地球约139光年， 视星等为5.933。
, 54 Ceti è la tradizionale nomenclatura di … 54 Ceti è la tradizionale nomenclatura di Flamsteed attribuita a una stella bianca di sequenza principale di magnitudine 5,93 situata però nella costellazione dell'Ariete. È nota anche con le designazioni HR 534, HD 11257 o SAO 92659. Dista 137 anni luce dal sistema solare.9. Dista 137 anni luce dal sistema solare.
, 54 Ceti, som är stjärnans äldre Flamsteed- … 54 Ceti, som är stjärnans äldre Flamsteed-beteckning, är en ensam stjärna nu belägen i den södra delen av stjärnbilden Väduren, idag även känd under stjärnkatalogbeteckningar som HD 11257 eller HR 534. Trots sin Flamsteed-beteckning tillhör den inte Valfiskens stjärnbild. Den ligger på gränsen mellan stjärnbilderna och fick byta tillhörighet vid översynen av gränser mellan stjärnbilderna år 1930. Den har en genomsnittlig skenbar magnitud på ca 5,94 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 23,8 mas, beräknas den befinna sig på ett avstånd på ca 137 ljusår (ca 42 parsek) från solen. Den rör sig bort från solen med en heliocentrisk radialhastighet av ca 11 km/s. Stjärnan ligger nära ekliptikan, vilket gör att an ligger nära ekliptikan, vilket gör att
, 54 Ceti is an older Flamsteed designation … 54 Ceti is an older Flamsteed designation for a star that is now located within the constellation boundaries of Aries, the Ram. In the present day it is known by star catalogue identifiers like HD 11257 or HR 534. At an apparent visual magnitude of 5.94, it can be seen with the naked eye. The distance to this star, as determined using parallax measurements made during the Hipparcos mission, is approximately 139 light-years (43 parsecs), give or take a 6 light-year margin of error. It is located near the ecliptic and hence is subject to occasional occultation by the Moon.ect to occasional occultation by the Moon.
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右更增三
, 54 Ceti
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