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NGC 771

NGC 771
Сурәт
Каталог коды 2MASS J02032607+7225167[1], HD 12216[1], HIP 9598[1], HR 580[1], IRAS 01591+7210[1], SAO 4560[1], GSC 04319-01847[1], BD +71° 117[1], FK5 70[1], GC 2445[1], GCRV 1114[1], HIC 9598[1], JP11 566[1], N30 418[1], PLX 412.05[1], PMC 90-93 49[1], PPM 4888[1], ROT 277[1], TD1 1150[1], TYC 4319-1847-1[1], UBV 2018[1], NGC 771, WEB 2016[1], Gaia DR2 546439965991980288[1], 50 Cas, Gaia DR3 546439965996109696[1], TIC 137200814[1], AG+72 57[1] һәм UBV M 8587[1]
Ачучы яки уйлап табучы Джон Гершель[d]
Йолдызлык Кассиопея йолдызлыгы[d]
Җирдән ераклык 47,9867 ± 0,439 парсек[2]
Скорость вращения звезды 91 km/s[3][4]
Параллакс 20,8391 ± 0,1908 миллисекунда дуги[2]
Склонение собственного движения 22,548 ± 0,266 миллиарксекунд в год[2]
Прямое восхождение собственного движения −43,842 ± 0,17 миллиарксекунд в год[2]
Радиаль тизлек −18,2 ± 0,9 km/s[5]
Спектраль сыйныф A2V[6]
Күренмә йолдызча зурлык 3,938 ± 0,009[7]
Туры калкулык 30,858785166534 °[2]
Авышлык 72,421294115542 °[2]
Нәтиҗәле температура 9376 K[8]
 NGC 771 Викиҗыентыкта

NGC 771Томанлыклар һәм йолдыз тупланмалары яңа гомуми каталогында теркәлгән галактика.

Әлеге галактика 1831 елда инглиз астрономы John Herschel тарафыннан, яктылык җыючы элемент буларак көзге кулланучы, 47.5 см (18.7 дюйм) зурлыктагы оптик телескоп ярдәмендә ачылган.[9]

  1. 1,00 1,01 1,02 1,03 1,04 1,05 1,06 1,07 1,08 1,09 1,10 1,11 1,12 1,13 1,14 1,15 1,16 1,17 1,18 1,19 1,20 1,21 1,22 1,23 1,24 1,25 1,26 50 Cas SIMBAD Astronomical Database
  2. 2,0 2,1 2,2 2,3 2,4 2,5 Gaia Early Data Release 3 / Data Processing and Analysis Consortium, European Space Agency — 2020.
  3. F. Royer, J. Zorec, Gómez A. E. Rotational velocities of A-type stars. III. Velocity distributions // Astron. Astrophys. / T. ForveilleEDP Sciences, 2007. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361:20065224arXiv:astro-ph/0610785
  4. Royer, F., Grenier, S., Baylac, M. -O. et al. Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i // Astron. Astrophys. / T. ForveilleEDP Sciences, 2002. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361:20020943arXiv:astro-ph/0205255
  5. Gontcharov G. A. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system // Ast. Lett. / R. SunyaevNauka, Springer Science+Business Media, 2006. — ISSN 1063-7737; 1562-6873; 0320-0108; 0360-0327doi:10.1134/S1063773706110065arXiv:1606.08053
  6. A. Cowley A study of the bright A stars. I. A catalogue of spectral classifications, A study of the bright stars. I. A catalogue of spectral classifications // Astron. J. / J. G. III, E. VishniacNYC: IOP Publishing, AAS, University of Chicago Press, AIP, 1969. — ISSN 0004-6256; 1538-3881doi:10.1086/110819
  7. Bastian, U., Fabricius, C. The Tycho-2 catalogue of the 2.5 million brightest stars // Astron. Astrophys. / T. ForveilleEDP Sciences, 2000. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846
  8. J. Zorec, F. Royer Rotational velocities of A-type stars. IV. Evolution of rotational velocities // Astron. Astrophys. / T. ForveilleEDP Sciences, 2012. — 22 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846doi:10.1051/0004-6361/201117691arXiv:1201.2052
  9. NGC/IC (English). NGC 771.

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NGC 771
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