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url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url url 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url url
  2. Weltenzyklopädie
  3. اچ‌دی ۴۰۶۵۷ - ویکی‌پدیا، دانشنامهٔ آزاد
اچ‌دی ۴۰۶۵۷ - ویکی‌پدیا، دانشنامهٔ آزاد
از ویکی‌پدیا، دانشنامهٔ آزاد
اچ‌دی ۴۰۶۵۷

Location of HD 40657 (circled)
اطلاعات رصدی
مبدأ J2000      اعتدال J2000
صورت فلکی شکارچی
بُعد 06h 00m 03.34979s[۱]
میل ‏ 27.3341″ 04′ ‎−3°[۱]
قدر ظاهری (V) 4.52[۲]
مشخصات
نوع طیف K1.5III-IIIb CN-1[۳]
شاخص رنگ U−B +1.21[۲]
شاخص رنگ B−V +1.22[۲]
نوع متغیر suspected[۴]
اخترسنجی
سرعت شعاعی (Rv)+۲۵٫۹±۰٫۹[۵] ک.م./ث
حرکت خاص (μ) بعد: ۱۰٫۶۴۶[۱] mas/yr
میل: −۷۳٫۵۸۹[۱] mas/yr
اختلاف‌منظر (π)۱۱٫۲۹۶۸ ± ۰٫۲۶۳۳[۱] mas
فاصله۲۸۹ ± ۷ سال نوری
(۸۹ ± ۲ پارسک)
قدر مطلق (MV)−۱٫۰۰[۶]
جزئیات
جرم۱٫۶۸[۷] M☉
شعاع۲۵٫۰۶+۰٫۸۴
−۰٫۵۱[۱] R☉
درخشندگی۱۹۶٫۴±۵٫۲[۱] L☉
گرانش سطحی (log g)۲٫۴۲[۸] cgs
درجه حرارت۴,۳۱۷+۵۳
−۸۰[۱] کلوین
فلزینگی [Fe/H]−۰٫۴۸[۶] dex
سرعت چرخش (v sin i)۲٫۱[۹] ک.م./ث
سن2.27[۷] میلیارد سال
نام‌گذاری‌های دیگر
ارجاعات پایگاه‌های داده
سیمباداطلاعات

اچ‌دی ۴۰۶۵۷ (انگلیسی: HD 40657) یک ستاره در صورت فلکی جبار، در نزدیکی مرز صورت فلکی تک‌شاخ است. رنگ نارنجی دارد و با قدر ظاهری ۴.۵۲ با چشم غیرمسلح کمرنگ قابل مشاهده است. این ستاره بر اساس اختلاف منظر در فاصله تقریباً ۲۸۹ سال نوری از خورشید قرار دارد.

منابع

  1. ↑ ۱٫۰ ۱٫۱ ۱٫۲ ۱٫۳ ۱٫۴ ۱٫۵ ۱٫۶ ۱٫۷ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ↑ ۲٫۰ ۲٫۱ ۲٫۲ Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
  3. ↑ Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". The Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
  4. ↑ Samus, N. N.; et al. (2017). "General Catalogue of Variable Stars". Astronomy Reports. 5.1. 61 (1): 80–88. Bibcode:2017ARep...61...80S. doi:10.1134/S1063772917010085. S2CID 125853869.
  5. ↑ Wilson, R. E. (1953). General Catalogue of Stellar Radial Velocities. Carnegie Institution for Science. Bibcode:1953GCRV..C......0W. LCCN 54001336.
  6. ↑ ۶٫۰ ۶٫۱ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644. Vizier catalog entry
  7. ↑ ۷٫۰ ۷٫۱ Luck, R. Earle (2015). "Abundances in the Local Region. I. G and K Giants". Astronomical Journal. 150 (3). 88. arXiv:1507.01466. Bibcode:2015AJ....150...88L. doi:10.1088/0004-6256/150/3/88. S2CID 118505114.
  8. ↑ Soubiran, Caroline; Le Campion, Jean-François; Brouillet, Nathalie; Chemin, Laurent (2016). "The PASTEL catalogue: 2016 version". Astronomy & Astrophysics. 591: A118. arXiv:1605.07384. Bibcode:2016A&A...591A.118S. doi:10.1051/0004-6361/201628497. S2CID 119258214.
  9. ↑ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. S2CID 54046583. Vizier catalog entry
  10. ↑ "HD 40657". سیمباد. Centre de données astronomiques de Strasbourg. Retrieved 2019-12-31.
آیکون خرد

این یک مقالهٔ خرد اخترشناسی است. می‌توانید با گسترش آن به ویکی‌پدیا کمک کنید.

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