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42 Persei (42 Per, n Per) è una stella bianca di sequenza principale, visibile nella costellazione di Perseo.
, 42 Persei, som är stjärnans Flamsteed-bete … 42 Persei, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna belägen i den södra delen av stjärnbilden, Perseus som också har Bayer-beteckningen n Persei och variabelbeteckningen V467 Persei. Den har en genomsnittlig skenbar magnitud på ca 5,11 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 10,8 mas, beräknas den befinna sig på ett avstånd på ca 302 ljusår (ca 93 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet av ca -12 km/s.iocentrisk radialhastighet av ca -12 km/s.
, HD23848 — хімічно пекулярна зоря спектрального класу A2, що має видиму зоряну величину в смузі V приблизно 5,1.Вона розташована на відстані близько 297,6 світлових років від Сонця.
, 英仙座42，又名BD+32 667，HD 23848、SAO 56727、HR 1177，是英仙座的一颗恒星，视星等为5.11，位于銀經160.7，銀緯-16.42，其B1900.0坐标为赤經3h 43m 13.2s，赤緯+32° -16.42′ 5″。
, 42 Persei (n Persei) é uma estrela na dire … 42 Persei (n Persei) é uma estrela na direção da Perseus. Possui uma ascensão reta de 03h 49m 32.70s e uma declinação de +33° 05′ 29.0″. Sua magnitude aparente é igual a 5.14. Considerando sua distância de 297 anos-luz em relação à Terra, sua magnitude absoluta é igual a −3.83. Pertence à classe espectral A3V. a −3.83. Pertence à classe espectral A3V.
, 42 Persei is a binary star system in the n … 42 Persei is a binary star system in the northern constellation of Perseus. It has the Bayer designation n Persei, while 42 Persei is the Flamsteed designation. The system is visible to the naked eye as a dim, white-hued point of light with an apparent visual magnitude of 5.11. It is located around 93 parsecs (302 ly) distant from the Sun, but is drifting closer with a radial velocity of −12.4 km/s. 42 Persei is a single-lined spectroscopic binary with an orbital period of 1.77 days and an eccentricity of just 0.056. It is a variable star, ranging in brightness from magnitude 5.05 to 5.18, and was assumed at discovery to be a close, but detached, eclipsing variable. Closer studies of the light variations and the orbit have shown that the main brightness changes are due to rotation of the distorted primary star, although it is predicted from the likely inclination of the orbit that shallow eclipses could also occur. The visible component is an A-type main-sequence star with a stellar classification of A3V; a star that is fusing its core hydrogen. It has been reported as a mild Am star, but this is considered questionable. The star has twice the mass of the Sun and 3.5 times the Sun's radius. It has a high rate of spin, showing a projected rotational velocity of 91 km/s. The star is radiating 59 times the luminosity of the Sun from its photosphere at an effective temperature of 8,892 K. The unseen companion star is likely to be a dim red dwarf with 38% of the Sun's mass. In Chinese astronomy, 42 Persei is called 天讒, Pinyin: Tiānchán, meaning Celestial Slander, because this star is marking itself and stand alone in Celestial Slander asterism, Hairy Head mansion (see : Chinese constellation).ead mansion (see : Chinese constellation).
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HD23848 — хімічно пекулярна зоря спектрального класу A2, що має видиму зоряну величину в смузі V приблизно 5,1.Вона розташована на відстані близько 297,6 світлових років від Сонця.
, 42 Persei, som är stjärnans Flamsteed-bete … 42 Persei, som är stjärnans Flamsteed-beteckning, är en dubbelstjärna belägen i den södra delen av stjärnbilden, Perseus som också har Bayer-beteckningen n Persei och variabelbeteckningen V467 Persei. Den har en genomsnittlig skenbar magnitud på ca 5,11 och är svagt synlig för blotta ögat där ljusföroreningar ej förekommer. Baserat på parallax enligt Gaia Data Release 2 på ca 10,8 mas, beräknas den befinna sig på ett avstånd på ca 302 ljusår (ca 93 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet av ca -12 km/s.iocentrisk radialhastighet av ca -12 km/s.
, 42 Persei (42 Per, n Per) è una stella bianca di sequenza principale, visibile nella costellazione di Perseo.
, 42 Persei (n Persei) é uma estrela na dire … 42 Persei (n Persei) é uma estrela na direção da Perseus. Possui uma ascensão reta de 03h 49m 32.70s e uma declinação de +33° 05′ 29.0″. Sua magnitude aparente é igual a 5.14. Considerando sua distância de 297 anos-luz em relação à Terra, sua magnitude absoluta é igual a −3.83. Pertence à classe espectral A3V. a −3.83. Pertence à classe espectral A3V.
, 英仙座42，又名BD+32 667，HD 23848、SAO 56727、HR 1177，是英仙座的一颗恒星，视星等为5.11，位于銀經160.7，銀緯-16.42，其B1900.0坐标为赤經3h 43m 13.2s，赤緯+32° -16.42′ 5″。
, 42 Persei is a binary star system in the n … 42 Persei is a binary star system in the northern constellation of Perseus. It has the Bayer designation n Persei, while 42 Persei is the Flamsteed designation. The system is visible to the naked eye as a dim, white-hued point of light with an apparent visual magnitude of 5.11. It is located around 93 parsecs (302 ly) distant from the Sun, but is drifting closer with a radial velocity of −12.4 km/s.oser with a radial velocity of −12.4 km/s.
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, HD23848
, 天讒
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