Zeta Draconis kuzey kutup çevresi takımyıldızı Ejderha da bulunan bir ikili yıldız sistemidir 3 17 görünür par

Name: Zeta Draconis
Creator: www.wikipedia.tr-tr.nina.az
Published: 2024-07-13T09:57:59+00:00
License: https://creativecommons.org/licenses/by/4.0/

Zeta Draconis, kuzey kutup çevresi takımyıldızı Ejderha'da bulunan bir ikili yıldız sistemidir. +3,17 görünür parlaklığıyla, bu genel olarak sönük takımyıldızının en parlak beşinci üyesidir. Güneş'ten uzaklığı paralaks tekniği kullanılarak ölçülmüş ve yaklaşık 330 ışık yılı (100 parsek) civarında bir tahmin edilmiştir.

ζ Draconis
Gözlem verisi Dönem J2000 Ekinoks J2000
Location of ζ Draconis (circled)
Takımyıldız	Draco
Sağ açıklık	17^sa 08^d 47.19596^s
Dik açıklık	+65° 42′ 52.8634″
Görünür büyüklük (V)	+3.17
Özellikler
Tayfsal sınıf	B6 III
U−B renk ölçeği	–0.43
B−V renk ölçeği	–0.11
Astrometri

Dikey hız (R_v)	–17 km/s
Özdevinim (μ)	RA: –20.43 mys/y Dec.: +19.61 mys/y
Iraklık açısı (π)	9.93 ± 0.35 mys
Uzaklık	330 ± 10 ly (101 ± 4 pc)
Mutlak büyüklük (M_V)	−1.88

Ayrıntılar

Kütle	3.5 `M`_☉
Yarıçap	2.3 `R`_☉
Aydınlatma gücü	148 `L`_☉
Yüzey kütle çekimi (log g)	4.24 cgs
Sıcaklık	13,397 K
Metallik [Fe/H]	–0.95 dex
Dönüş hızı (v sin i)	55 km/s

Katalog belirtmeleri
22 Draconis, +65 1170, Temel Katalog 639, HD 155763, 83895, (HR) 6396, SAO 17365, 17088+6543.
Veritabanı kaynakları
SIMBAD	veri

Kaynakça

^ ^a ^b ^c ^d ^e ^f van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2), ss. 653-664, arXiv:0708.1752 $2, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.
^ ^a ^b ^c ^d Johnson, H. L.; Iriarte, B.; Mitchell, R. I.; Wisniewskj, W. Z. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), s. 99, Bibcode:1966CoLPL...4...99J.
^ ^a ^b ^c ^d Cenarro, A. J.; Peletier, R. F.; Sánchez–blázquez, P.; Selam, S. O.; Toloba, E.; Cardiel, N.; Falcón–barroso, J.; Gorgas, J.; Jiménez-Vicente, J. (2007), "Medium-resolution Isaac Newton Telescope Library of Empirical Spectra – II. The Stellar Atmospheric Parameters", , 374 (2), ss. 664-690, arXiv:astro-ph/0611618 $2, Bibcode:2007MNRAS.374..664C, doi:10.1111/j.1365-2966.2006.11196.x.
^ Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", Batten, Alan Henry; Heard, John Frederick (Ed.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, 30, University of Toronto: International Astronomical Union, s. 57, Bibcode:1967IAUS...30...57E.
^ Huang, W.; Wallerstein, G.; Stone, M. (2012), "A catalogue of Paschen-line profiles in standard stars", Astronomy & Astrophysics, cilt 547, ss. A62, arXiv:1210.7893 $2, Bibcode:2012A&A...547A..62H, doi:10.1051/0004-6361/201219804.
^ ^a ^b ^c Malagnini, M. L.; Morossi, C. (November 1990), "Accurate absolute luminosities, effective temperatures, radii, masses and surface gravities for a selected sample of field stars", Astronomy and Astrophysics Supplement Series, 85 (3), ss. 1015-1019, Bibcode:1990A&AS...85.1015M.
^ Royer, F. (October 2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy and Astrophysics, cilt 393, ss. 897-911, arXiv:astro-ph/0205255 $2, Bibcode:2002A&A...393..897R, doi:10.1051/0004-6361:20020943.
^ "Zet Dra", SIMBAD, Centre de Données astronomiques de Strasbourg, 5 Kasım 2020 tarihinde kaynağından , erişim tarihi: 10 Ekim 2009.

[aaa474_2_653-1] ^ ^a ^b ^c ^d ^e ^f van Leeuwen, F. (November 2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2), ss. 653-664, arXiv:0708.1752 $2, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357.

[clpl4_99-2] Johnson, H. L.; Iriarte, B.; Mitchell, R. I.; Wisniewskj, W. Z. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99), s. 99, Bibcode:1966CoLPL...4...99J.

[mnras374_2_664-3] Cenarro, A. J.; Peletier, R. F.; Sánchez–blázquez, P.; Selam, S. O.; Toloba, E.; Cardiel, N.; Falcón–barroso, J.; Gorgas, J.; Jiménez-Vicente, J. (2007), "Medium-resolution Isaac Newton Telescope Library of Empirical Spectra – II. The Stellar Atmospheric Parameters", , 374 (2), ss. 664-690, arXiv:astro-ph/0611618 $2, Bibcode:2007MNRAS.374..664C, doi:10.1111/j.1365-2966.2006.11196.x.

[rgcrv-4] Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", Batten, Alan Henry; Heard, John Frederick (Ed.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, 30, University of Toronto: International Astronomical Union, s. 57, Bibcode:1967IAUS...30...57E.

[huang2012-5] Huang, W.; Wallerstein, G.; Stone, M. (2012), "A catalogue of Paschen-line profiles in standard stars", Astronomy & Astrophysics, cilt 547, ss. A62, arXiv:1210.7893 $2, Bibcode:2012A&A...547A..62H, doi:10.1051/0004-6361/201219804.

[aass85_3_1015-6] Malagnini, M. L.; Morossi, C. (November 1990), "Accurate absolute luminosities, effective temperatures, radii, masses and surface gravities for a selected sample of field stars", Astronomy and Astrophysics Supplement Series, 85 (3), ss. 1015-1019, Bibcode:1990A&AS...85.1015M.

[aaa393-7] Royer, F. (October 2002), "Rotational velocities of A-type stars in the northern hemisphere. II. Measurement of v sin i", Astronomy and Astrophysics, cilt 393, ss. 897-911, arXiv:astro-ph/0205255 $2, Bibcode:2002A&A...393..897R, doi:10.1051/0004-6361:20020943.

[SIMBAD-8] "Zet Dra", SIMBAD, Centre de Données astronomiques de Strasbourg, 5 Kasım 2020 tarihinde kaynağından , erişim tarihi: 10 Ekim 2009.