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仙女座KK，又名BD+36 277，HD 9531、SAO 54788、HR 446，是仙女座的一颗恒星，视星等为5.88，位于銀經132.32，銀緯-24.85，其B1900.0坐标为赤經1h 28m 30s，赤緯+36° -24.85′ 28″。
, KK Андромеды (лат. KK Andromedae), HD 9531 … KK Андромеды (лат. KK Andromedae), HD 9531 — одиночная переменная звезда в созвездии Андромеды на расстоянии приблизительно 437 световых лет (около 134 парсеков) от Солнца. Видимая звёздная величина звезды — от +5,922 до +5,91m. Возраст звезды оценивается как около 225 млн лет. звезды оценивается как около 225 млн лет.
, KK Andromedae, also known as HD 9531, is a … KK Andromedae, also known as HD 9531, is a variable star in the northern constellation of Andromeda. It has an apparent visual magnitude of 5.90, which places it near the lower limit of visibility to the naked eye even under good viewing conditions. An Alpha2 Canum Venaticorum variable, it varies in brightness by 0.012 magnitude every 0.66 days. Based upon an annual parallax shift of 7.5 mas as seen from Earth, it is located around 437 light years from the Sun. At that distance, the brightness of the star is diminished by an extinction of 0.26 magnitude due to interstellar dust. Cowley et al. (1969) assigned this star a stellar classification of B9 IV, which would indicate it is a B-type star in the subgiant stage that has exhausted the hydrogen supply at its core and is expanding. It is a catalogued as an Ap star that displays an abnormal silicon abundance, but has been reported to actually be a helium-weak chemically peculiar star. The star has just over three times the mass of the Sun and about 2.7 times the Sun's radius. It is an estimated 225 million years old and is spinning rapidly with a projected rotational velocity of 163 km/s and a rotation period of 16 hours. KK And is radiating 91 times the Sun's luminosity from its photosphere at an effective temperature of 11,729 K.e at an effective temperature of 11,729 K.
, KK Andromedae è una stella bianco-azzurra nella sequenza principale di magnitudine 5,91 situata nella costellazione di Andromeda. Dista 392 anni luce dal sistema solare.
, HD9531 є хімічно пекулярною зорею спектрального класуB8 й має видиму зоряну величину в смузі V приблизно 5,9.Вона знаходиться у сузір'ї Андромеда на відстані близько 392,0 світлових років від Сонця.
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KK Андромеды (лат. KK Andromedae), HD 9531 … KK Андромеды (лат. KK Andromedae), HD 9531 — одиночная переменная звезда в созвездии Андромеды на расстоянии приблизительно 437 световых лет (около 134 парсеков) от Солнца. Видимая звёздная величина звезды — от +5,922 до +5,91m. Возраст звезды оценивается как около 225 млн лет. звезды оценивается как около 225 млн лет.
, HD9531 є хімічно пекулярною зорею спектрального класуB8 й має видиму зоряну величину в смузі V приблизно 5,9.Вона знаходиться у сузір'ї Андромеда на відстані близько 392,0 світлових років від Сонця.
, 仙女座KK，又名BD+36 277，HD 9531、SAO 54788、HR 446，是仙女座的一颗恒星，视星等为5.88，位于銀經132.32，銀緯-24.85，其B1900.0坐标为赤經1h 28m 30s，赤緯+36° -24.85′ 28″。
, KK Andromedae è una stella bianco-azzurra nella sequenza principale di magnitudine 5,91 situata nella costellazione di Andromeda. Dista 392 anni luce dal sistema solare.
, KK Andromedae, also known as HD 9531, is a … KK Andromedae, also known as HD 9531, is a variable star in the northern constellation of Andromeda. It has an apparent visual magnitude of 5.90, which places it near the lower limit of visibility to the naked eye even under good viewing conditions. An Alpha2 Canum Venaticorum variable, it varies in brightness by 0.012 magnitude every 0.66 days. Based upon an annual parallax shift of 7.5 mas as seen from Earth, it is located around 437 light years from the Sun. At that distance, the brightness of the star is diminished by an extinction of 0.26 magnitude due to interstellar dust.f 0.26 magnitude due to interstellar dust.
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, KK Андромеды
, KK Andromedae
, KK Андромеди
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