Zobrazeno 1 - 10
of 14
pro vyhledávání: '"R. Bendary"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract In this paper, we re-estimate the astrometric and photometric parameters of the young open star cluster King 18 based on Gaia Data Release 3 (DR3), Two Micron All-sky Survey (2MASS) and VRI CCD observations using the f/4.9 Newtonian focus of
Externí odkaz:
https://doaj.org/article/7e251ab771694a33b5bc6cd8f0e2f28e
Akademický článek
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Publikováno v:
Astronomische Nachrichten. 339:698-704
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eea51b13941f1c7c779e11db34942ebe
https://doi.org/10.1002/asna.201913523
https://doi.org/10.1002/asna.201913523
Autor:
I. M. Selim, R. Bendary
Publikováno v:
NRIAG Journal of Astronomy and Geophysics, Vol 5, Iss 2, Pp 289-296 (2016)
In this work we present JHKs near-infrared photometric study for the poorly studied open star clusters Alessi 16, Chupina1, Juchert-Saloran1 and Patchick 78 based on 2MASS data. Astrometry and photometric parameters have been calculated using the Red
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46f7a1685e28540c7b1b071fc8b9c965
https://doi.org/10.1016/j.nrjag.2016.06.003
https://doi.org/10.1016/j.nrjag.2016.06.003
Publikováno v:
NRIAG Journal of Astronomy and Geophysics, Vol 5, Iss 1, Pp 16-22 (2016)
In the present study, we have used Deep CCD images of the extremely young open star cluster NGC 6611, up to a limiting magnitude of V ∼ 22.86 mag in V, R and I passbands. The resulting color-magnitude V; (V–I) diagram as well as their radial dens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84c823e4e2da1ceb649a063f6596c423
https://doi.org/10.1016/j.nrjag.2016.02.006
https://doi.org/10.1016/j.nrjag.2016.02.006
The astrophysical parameters of the open star cluster Mayer 3 have been estimated using the Newtonian focus (f/4.84) of the 1.88 m Telescope of Kottamia Observatory in Egypt. The VRI observations have been carried out down to a limiting magnitude of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b31237e3f3a519ce681ec539a604d2c
Publikováno v:
Research in Astronomy and Astrophysics. 18:016
BVRI CCD photometry of the poorly studied open cluster NGC 6724 has been carried out down to a limiting magnitude of V ∼20 mag. The stars of the cluster have been observed using the Newtonian focus ( f /4.84) of the 74-inch telescope at Kottamia As
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b86f259b1727f486809dcd9331dcabf9
https://doi.org/10.1088/1674-4527/18/2/16
https://doi.org/10.1088/1674-4527/18/2/16
PPMXL photometric study of four open cluster candidates (Ivanov 2, Ivanov 7, Ivanov 9 and Harvard 9)
Autor:
A. L. Tadross, R. Bendary
The astrophysical parameters of four unstudied open star cluster candidates - Harvard 9, Ivanov 2, Ivanov 7, and Ivanov 9 - have been estimated for the first time using the PPMXL database. The stellar density distributions and color-magnitude diagram
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f332614243fff1976808abcd82d8744
Publikováno v:
NRIAG Journal of Astronomy and Geophysics, Vol 3, Iss 2, Pp 205-209 (2014)
Here we have obtained the {\it BVRI CCD} photometry down to a limiting magnitude of $V \sim$ 20 for the southern poorly studied open cluster NGC 6631. It is observed from the {\it 1.88 m} Telescope of Kottamia Observatory in Egypt. About 3300 stars h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::faa1c359f6fd62393b15050285d97ac2
Akademický článek
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