Ýçindekiler
Görüntüler
Resim Yükleyin
DSS Images Other Images
Ýlgili Makaleler
Physical parameters of pulsating variables with periods between one and three days. I - Photometry and metallicities Based on a new set of observations in the Walraven VBLUW system,obtained at the European Southern Observatory, La Silla, Chile,Fe/H(VBLU) values of 57 pulsating variables, mostly with periods betweenone and three days,. are determined. The distribution of the metalabundances is shown to be essentially bimodal. All the variables withFe/H ratios of less than -0.4 were classified by Diethelm (1983) as RRdstars. They are identified as the galactic field counterpart of theCepheids in the same period range found in globular clusters.
|
Yeni bir Makale Öner
Ýlgili Baðlantýlar
Yeni Bir Baðlantý Öner
sonraki gruplarýn üyesi:
|
Gözlemler ve gökölçümü verileri
Takýmyýldýz: | Yunus |
Sað Açýklýk: | 20h22m37.76s |
Yükselim: | +18°56'04.5" |
Görünürdeki Parlaklýk: | 8.568 |
özdevim Sað Açýklýk: | 5.8 |
özdevim Yükselim: | -14.1 |
B-T magnitude: | 8.674 |
V-T magnitude: | 8.577 |
Kataloglar ve belirtme:
|