Results 91 to 100 of about 901,551 (242)

Variable Star T Cassiopeiæ [PDF]

Nature, 1892
FROM long-continued observations of the above star, irregularities in the ascending light curve may be expected about October or November next. I shall be happy to supply a diagram of the field to any one interested in the question.
openaire   +2 more sources

The Identification of RR Lyrae and Delta Scuti Stars from Variable GALEX Ultraviolet Sources [PDF]

, 2014
We identify the RR Lyrae and delta Scuti (DSCT) stars in three catalogs of GALEX variable sources. The NUV amplitude of RR Lyrae stars is about twice that in V-band, so we find a larger percentage of low amplitude variables than catalogs such as Abbas et al (2014).
arxiv   +1 more source

The slowly variable star FY Lacertae

, 2017
Photometric observations and analysis of FY Lac were performed in order to determine the variability characteristics, using measurements taken at Loiano site of Bologna Astronomical Observatory and AAVSO data.
Benna, Carlo, Courtial, Vittorio Augusto Zasa, Fucci, Alice, Gardiol, Daniele, Maldarella, Fabio, Pace, Davide, Pettiti, Giuseppe   +6 more
core  

Variable binaries and variables in binaries in the Binary Star Database BDB [PDF]

, 2018
The BDB, Binary star DataBase http://bdb.inasan.ru combines data of the catalogues of binary and multiple stars of all observational types. There is a number of ways for variable stars to form or to be a part of binary or multiple systems. We describe how such stars are represented in the database.
arxiv   +1 more source

PERIOD ANALYSIS AND MODE IDENTIFICATIONS OF RRab LYRAE STAR X ARIETIS

Odessa Astronomical Publications, 2007
On the base of Preston and Paczynski’s (1964) simultaneous photoelectric (U, B, V) and spectroscopic observ ations (358 U-B and 61 Radial Velocities from Lick Single-T rail Spectrograms) has been carried out the analysis of periods of RRab Lyr star X ...
V. P. Bezdenezhnyj
doaj   +1 more source

Variable Stars

, 2011
This is the triennial report of IAU Commission 27, mostly presenting a review of recent advances in the field.
Handler, G., Pollard, K. R., Cunha, M. S., Olah, K., Kolenberg, K., Jeffery, C. S., Catelan, M., Eyer, L., Bedding, T. R., Kepler, S. O., Mkrtichian, D., Griffin, E., Samus, N. N.   +12 more
openaire   +2 more sources

Statistical Studies of Long - Period Variable Stars in Odessa [PDF]

arXiv, 2014
The studies of pulsating variable stars are traditional subjects of astronomers in Odessa. In the last half of the 20th century, the studies of the physical variable stars were the topics of 15 PhD theses of the collaborators of the Odessa State (now National) University.
arxiv  

Variable Stars in M31 Stellar Clusters from the Panchromatic Hubble Andromeda Treasury

The Astrophysical Journal
Variable stars in stellar clusters can offer key constraints on stellar evolution and pulsation models, utilizing estimates of host cluster properties to constrain stellar physical parameters.
Richard Smith, Avi Patel, Monika D. Soraisam, Puragra Guhathakurta, Pranav Tadepalli, Sally Zhu, Joseph Liu, Léo Girardi, L. Clifton Johnson, Sagnick Mukherjee, Knut A. G. Olsen, Benjamin F. Williams   +11 more
doaj   +1 more source

A Note on the Variability of V538 Cassiopeiae

, 2012
CCD observations of V538 Cas have been made on nine nights during three weeks using the AAVSO Bright Star Monitor. No significant variations were found.Comment: To be published in The Journal of the American Association Of Variable Star Observers ...
Holmberg, Gustav
core  

NSV 05513 = 69 (Δ) UMA A LONG PERIODIC ECLIPSING VARIABLE?

Odessa Astronomical Publications, 2017
The star NSV 05513 is suggested to be an eclipsing variable with a period of 1030m - 1180m(1115m) and a range 3.m3-4.m3 V.
I. S. Bryukhanov, V. M. Askirko
doaj   +1 more source