LQ Andromedae (shortened asLQ And, also known asHR 9070 in theBright Star Catalogue) is a variable star in theconstellationAndromeda. Its maximumapparent visual magnitude is 6.5, placing it at the limit of the visibility to the naked eye. The brightness, however, drops down to 6.66 with a periodic cycle of roughly 7.44 hours.[3]
LQ Andromedae is also aspectroscopic binary with an orbital period of 7.413 days. Not much is known about the secondary component, but it is likely a low-mass companion (M<0.5M☉). A circumstellar disk is also present in the system.[9]
^Harmanec, P.; Matthews, J. M.; Božić, H.; Pavlovski, K.; Huang, L.; Guo, Z. H.; Percy, J. R.; Plume, R.; Ružić, Ž.; Wehlau, W. H.; Bohlender, D. A.; Horn, J.; Koubský, P.; Walker, G. A. H.; Yang, S. (February 1991). "Properties and Nature of Be Stars. 15. Light Variations of LQ And and Its Check Stars Revisited".Bulletin of the Astronomical Institute of Czechoslovakia.42: 1.Bibcode:1991BAICz..42....1H.
^abcdLQ And, database entry, Combined General Catalog of Variable Stars (GCVS4.2, 2004 Ed.), N. N. Samus, O. V. Durlevich, et al.,CDS IDII/250 Accessed on line 2018-10-17.
^abHøg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars".Astronomy & Astrophysics.355:L27 –L30.Bibcode:2000A&A...355L..27H.
^abcCutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003)."VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)".CDS/ADC Collection of Electronic Catalogues.2246: II/246.Bibcode:2003yCat.2246....0C.
^abcZorec, J.; Frémat, Y.; Domiciano de Souza, A.; Royer, F.; Cidal, L.; Hubert, A. -M.; Seemann, T.; Martayan, C.; Cochetti, Y. R.; Arias, M. L.; Aidelman, Y.; Stee, P. (2017). "Critical study of the distribution of rotational velocities of Be stars. I. Deconvolution methods, effects due to gravity darkening, macroturbulence, and binarity".Astronomy & Astrophysics.595: 26 pp.arXiv:1702.07684.Bibcode:2016A&A...595A.132Z.doi:10.1051/0004-6361/201628760.
