2023RNAAS...7..198W

Query : 2023RNAAS...7..198W

2023RNAAS...7..198W - Research Notes of the AAS, 7, 198 (2023/September-0)

Photometric Update of δ Scuti Stars: ZZ Microscopium.

WADHWA S.S., DE HORTA A.Y., TOTHILL N.F.H. and FILIPOVIC M.D.

Abstract (from CDS):

Multi-color CCD photometric update of the bright high amplitude δ Scuti star ZZ Microscopium (ZZ Mic) is presented. We find that the B band has the highest amplitude at 0.47 mag while the V band amplitude is smaller at 0.38 mag. The revised pulsation period 0.06717850 day is similar to most recent previous estimates. We did not detect secondary mode pulsations. We find the temperature of the star varies by 720 K during pulsations and its radius changes by 0.1 R☉. We estimate the mass of ZZ Mic as 1.93 M☉ and surface gravity g as 4.19.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Delta Scuti variable stars

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 TYC 7973-953-1 * 21 00 01.4602545336 -42 37 51.919303980   12.01 11.30     ~ 1 0
2 HD 199709 * 21 00 24.9948415704 -42 43 12.221653368   10.68 10.17     F8/G0V 10 0
3 V* ZZ Mic dS* 21 00 35.1958990416 -42 39 20.297009304   9.64 9.43     A5/7IV 74 0

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