Orbits of Open Star Clusters NGC 6067, NGC 2506 ANG IC 465
نویسندگان
چکیده
منابع مشابه
Iron abundances from high - resolution spectroscopy of the open clusters NGC 2506 , NGC 6134 , and IC 4651 ⋆
This is the first of a series of papers devoted to derive the metallicity of old open clusters in order to study the time evolution of the chemical abundance gradient in the Galactic disk. We present detailed iron abundances from high resolution (R ∼ > 40, 000) spectra of several red clump and bright giant stars in the open clusters IC 4651, NGC 2506 and NGC 6134. We observed 4 stars of NGC 250...
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UBGVRI photometry for the open cluster NGC 2506 is presented. From comparison of the observed colour-magnitude diagrams with simulations based on stellar evolutionary models we derive in a self consistent way reddening, distance, and age of the cluster: E(B−V)=0-0.07, (m-M)0 = 12.6±0.1, τ = 1.5-2.2 Gyr. The cluster shows a well definite secondary sequence, suggesting that binary systems constit...
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We present CCD photometry and proper motion studies of the three open star clusters NGC4103, NGC5281, and NGC4755 (κ Cru). By fitting isochrones to the colour magnitude diagrams, we found that all three objects are young open star clusters with ages of at most t = 45 Myr. They are located at distances from approx. 1600 pc to 2200 pc, derived from distance moduli (m−M)0 ranging from 11 mag to 12...
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We present CCD photometry and proper motion studies of the two open star clusters NGC 1960 (M 36) and NGC 2194. Fitting isochrones to the colour magnitude diagrams, for NGC 1960 we found an age of t = 16 Myr and a distance of roughly d = 1300 pc and for NGC 2194 t = 550 Myr and d = 2900 pc, respectively. We combined membership determination by proper motions and statistical field star subtracti...
متن کاملThe CFHT Open Star Cluster Survey. IV. Two Rich, Young Open Star Clusters: NGC 2168 (M35) and NGC 2323 (M50)
We continue our study of rich Galactic clusters by presenting deep CCD observations of both NGC 2168 (M35) and NGC 2323 (M50). Both clusters are found to be rich (NGC 2168 contains at least 1000 stars brighter than V = 22 and NGC 2323 contains ∼2100 stars brighter than our photometric limit of V ∼ 23) and young (age of NGC 2168 = 180 Myrs, age of NGC 2323 = 130 Myrs). The color-magnitude diagra...
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ژورنال
عنوان ژورنال: Journal of Mountain Research
سال: 2019
ISSN: 2582-5011,0974-3030
DOI: 10.51220/jmr.v14i1.8