Inf. Bull. Variable Stars 49-48
December 2021

2021IBVS...49..121E
V963 Persei as a Contact Binary
Eaton, J. A.; Steffens, G.W.; Odell, A. P.
2021IBVS...49..130R
Discovery of Romanov V20, an Algol-Type Eclipsing Binary in the Constellation Centaurus, by Means of Data Mining
Romanov, F.D.
2021IBVS...49..135K
The Long-term Period Changes of the Cepheid Variable SV Monocerotis
Karmakar, P.; Samolyk, G.
2021IBVS...49..138S
Binaries with Mass Ratios Near Unity: The First BVRI Observations, Analysis and Period Studies of TX Canis Minoris and DW Canis Minoris
Samec, R.G.; Caton, D.; Ray, J.; Waddell, R.; Gentry, D.; Faulkner, D.
2021IBVS...49..149M
An Analysis of X-Ray Hardness Ratios between Asynchronous and Non-Asynchronous Polars
Masington, E.; Maccarone, T.J.; Sandoval, L.R.; Heinke, C.; Bahramian, A.; Shaw, A.W.
2021IBVS...49..151T
High Cadence Millimagnitude Photometric Observation of V1112 Persei (Nova Per 2020)
Thomas, N.; Ziegler, K.; Liu, P.
2021IBVS...49..157B
Spectroscopic and Photometric Study of the Mira Stars SU Camelopardalis and RY Cephei
Boyd, D.
2021IBVS...49..170A
CCD Photometry, Light Curve Modeling, and Period Study of V573 Serpentis, a Totally Eclipsing Overcontact Binary System
Alton, K.B.; Wiley, E.O.
2021IBVS...49..178P
Distances for the RR Lyrae Stars UU Ceti, UW Gruis, and W Tucanae
Parker, R. ; Parker, L.; Parker, H.; Uddin, F.; Banks, T.
2021IBVS...49..186M
25 New Light Curves and Updated Ephemeris through Analysis of Exoplanet WASP-50 b with EXOTIC
Mizrachi, R.; Ly, D. ; Bewersdorff, L.; Tock, K.
2021IBVS...49..192H
Characterization of NGC 5272, NGC 1904, NGC 3201, and Terzan 3
Hamrick, P.; Bansal, A.; Tock, K.
2021IBVS...49..197A
Retraction of and Re-analysis of the Data from "HD 121620: A Previously Unreported Variable Star with Unusual Properties"
Axelsen, R.A.
2021IBVS...49..201A
CCD Photometry, Light Curve Modeling and Period Study of V1073 Herculis, a Totally Eclipsing Overcontact Binary System
Alton, K.B.; Downing, J.C.
2021IBVS...49..209P
Pulsating Red Giants in a Globular Cluster: 47 Tucanae
Percy, J.R.; Gupta, P.
2021IBVS...49..214A
CCD Photometry, Light Curve Modeling, and Period Study of GSC 2624-0941, a Totally Eclipsing Overcontact Binary System
Alton, K.B.; Downing, J.C.
2021IBVS...49..221M
A Photometric Study of the Eclipsing Binary LO Ursae Majoris
Michaels, E.J.
2021IBVS...49..232S
Photometric Observations of the Dwarf Nova AH Herculis
Spogli, C. ; Rocchi, G. ; Ciprini, S.; Vergari, D.; Rosati, J.
2021IBVS...49..247L
Photometric Determination of the Distance to the RR Lyrae Star YZ Capricorni
Lester, J.; Joignant, R. ; Meier, M.
2021IBVS...49..251R
Southern Eclipsing Binary Minima and Light Elements in 2020
Richards, T.; Axelsen, R.A. ; Blackford, M.; Jenkins, R.; Moriarty, D.J.W.
2021IBVS...49..257S
The Photometric Period of V1674 Herculis (Nova Her 2021)
Schmidt, R.E.; Shugarov, S.Y.; Afonina, M.D.
2021IBVS...49..261S
The Photometric Period of V606 Vulpeculae (Nova Vul 2021)
Schmidt, R.E.
2021IBVS...49..265S
Recent Minima of 218 Eclipsing Binary Stars
Samolyk, G.
2021IBVS...49..269N
Daylight Photometry of Bright Stars–Observations of Betelgeuse at Solar Conjunction
Nickel, O. ; Calderwood, T.
2021IBVS...49..276B
Erratum: Four New Variable Stars in the Field of KELT-16
Brossard, D.J. ; Kaitchuck, R.H.
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