Iota Aurigae

Iota Aurigae
Arabacı takımyıldızı ve çevresinindeki yıldız konumlarını ve sınırlarını gösteren diyagram
Iota Aurigae'nin Arabacı takımyıldızındaki konumu
Gözlem verisi
Dönem J2000      Ekinoks J2000
TakımyıldızArabacı
Sağ açıklık (α)04sa 56d 59.62109s[1]
Dik açıklık (δ)+33° 09′ 57.9585″[1]
Görünür büyüklük (V)2.69[2]
Sınıflandırma
Tayfsal sınıf
K3 II[3]
U−B renk ölçeği+1.78[2]
B−V renk ölçeği+1.53[2]
Değişen yıldız tipiŞüpheli[4]
Astrometri
Dikey hız ()+17.78[5] km/s
Özdevinim (μ)RA: +6.79[1] mys/y
Dec.: −14.88[1] mys/y
Iraklık açısı (π)6.61 ± 0.38[1] mys
Uzaklık490 ± 30 Iy
(151 ± 9 pc)
Mutlak büyüklük (V)−3.20[6]
Özellikler
Kütle (m)7.1 ± 0.7[7] M☉
Yarıçap (r)127[7] R☉
Aydınlatma gücü4,581[6] L⊙
Yüzey kütle çekimi (log g)1.74[8] cgs
Sıcaklık4,160[8] K
Metallik [Fe/H]–0.11[8]
Dönüş hızı ()8[9] km/s
Yaş39.8 ± 4.9[7]
Katalog belirtmeleri
Hassaleh, Kabdhilinan, ι Aur, 3 Aurigae, BD+32°855- FK5 181, HD 31398, HIP 23015, HR 1577, SAO 57522, GC 6029[10]

Iota Aurigae (ι Aurigae, Iota Aur, ι Aur) veya Hassaleh, Arabacı takımyıldızında bulunan bir yıldızdır. Dünya'dan 490 ışık yılı uzaklıkta yer almakta olup 2,7 görsel büyüklüğü ile çıplak gözle kolayca görülebilecek kadar parlaktır.[2]

Kaynakça

  1. ^ a b c d e van Leeuwen, F. (Kasım 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 
  2. ^ 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 
  3. ^ Morgan, W. W.; Keenan, P. C. (1973), "Spectral Classification", Annual Review of Astronomy and Astrophysics, cilt 11, s. 29, Bibcode:1973ARA&A..11...29M, doi:10.1146/annurev.aa.11.090173.000333 
  4. ^ Strassmeier, K. G. (Ocak 2008), "Stellar Activity with BRITE: the Aurigae field", Communications in Asteroseismology, cilt 152, ss. 124-130, Bibcode:2008CoAst.152..124S, doi:10.1553/cia152s124 
  5. ^ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (Ocak 2005), "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters", Astronomy and Astrophysics, 430 (1), ss. 165-186, arXiv:astro-ph/0409579 $2, Bibcode:2005A&A...430..165F, doi:10.1051/0004-6361:20041272 
  6. ^ a b Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5), s. 331, arXiv:1108.4971 $2, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015 
  7. ^ a b c Tetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (Ocak 2011), "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun", Monthly Notices of the Royal Astronomical Society, 410 (1), ss. 190-200, arXiv:1007.4883 $2, Bibcode:2011MNRAS.410..190T, doi:10.1111/j.1365-2966.2010.17434.x 
  8. ^ a b c McWilliam, Andrew (Aralık 1990), "High-resolution spectroscopic survey of 671 GK giants", Astrophysical Journal Supplement Series, cilt 74, ss. 1075-1128, Bibcode:1990ApJS...74.1075M, doi:10.1086/191527, ISSN 0067-0049 
  9. ^ Bernacca, P. L.; Perinotto, M. (1970), "A catalogue of stellar rotational velocities", Contributi Osservatorio Astronomico di Padova in Asiago, 239 (1), s. 1, Bibcode:1970CoAsi.239....1B 
  10. ^ "iot Aur -- Variable Star", SIMBAD, Centre de Données astronomiques de Strasbourg, 12 Aralık 2019 tarihinde kaynağından arşivlendi, erişim tarihi: 4 Ocak 2020 

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