2023JAVSO..51..120R

Query : 2023JAVSO..51..120R

2023JAVSO..51..120R - J. Am. Assoc. Variable star obs., 51, 120 (2023)

Infrared Photometric Distance to WZ Hya.

RITTERBY C. and ALLEN M.L.

Abstract (from CDS):

A distance to the RR Lyrae star WZ Hya was determined to test how well period-luminosity-metallicity (PLZ) relations agree with current parallax measurements from Gaia. We obtained 120 photometric observations in the B, V, ip, and zs filters from 16 February to 28 May 2022. Fluxes were extracted using six-aperture photometry methods. The period found for WZ Hya was 0.5377 ± 0.0005 day. Using the theoretical PLZ relations, a weighted average distance of 872 ± 47 parsecs was determined for the V, ip, and zs filters with a minimization technique. This distance is compared to the distances found using color excess values found in the literature, which distances were 942 ± 51 and 931 ± 50 parsecs, respectively. The Gaia Data Release 3 (DR3) parallax distance is 999 ± 16 parsecs. The distances determined using the PLZ relation are consistent with the parallax-determined value from Gaia within 1-2 standard deviations.

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Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 1

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Number of rows : 1

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	V* WZ Hya	RR*	10 13 24.1278993288	-13 08 17.397051972		10.47	10.27			kA8.5hF6	97	0

Query : 2023JAVSO..51..120R

Basic data :

V* WZ Hya -- RR Lyrae Variable

* (BD,GCRV,...), RR* (2006AJ), V* (AN,ASAS,...), NIR (2MASS)

10 13 24.1278993288 -13 08 17.397051972 (Optical) [ 0.0134 0.0139 90 ] A 2020yCat.1350....0G

10 10 57.4019746867 -12 53 23.026572651 [ 0.0134 0.0139 90 ]

254.2634542352190 +34.4043725644743 [ 0.0134 0.0139 90 ]

-5.310 -19.553 [0.016 0.016 90] A 2020yCat.1350....0G

V(km/s) 290.76 [6.72] / z(spectroscopic) 0.000970 [0.000022] / cz 290.90 [6.72] (Opt) D 2022yCat.1355....0G

1.0008 [0.0157] A 2020yCat.1350....0G

kA8.5hF6 D 1992PASP..104..111K

B 10.47 [~] E ~

V 10.27 [~] E ~

G 10.826389 [0.013167] C 2022yCat.1355....0G

J 9.885 [0.027] C 2003yCat.2246....0C

H 9.595 [0.023] C 2003yCat.2246....0C

K 9.534 [0.019] C 2003yCat.2246....0C

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`BD-12 3114`	`GEN# -0.01203114`	`NPM1-12.1166`	*`V WZ Hya`**
`AN 215.1932`	`HIC 50073`	`NSVS 15781328`	`WEB 9206`
`ASAS J101324-1308.3`	`HIP 50073`	`TIC 101184036`	`Gaia DR2 3765574712337027456`
`GCRV 6451`	`2MASS J10132412-1308173`	`TYC 5496-429-1`	`Gaia DR3 3765574712337027456`

References (97 between 1850 and 2026) (Total 97)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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`BD-12 3114`	`HIC 50073`	`HIP 50073`	`2MASS J10132412-1308173`	`TYC 5496-429-1`
*`V WZ Hya`**	`Gaia DR2 3765574712337027456`	`Gaia DR3 3765574712337027456`

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