2013JAVSO..41..214D

Query : 2013JAVSO..41..214D

2013JAVSO..41..214D - J. Am. Assoc. Variable star obs., 41, 214 (2013/December-0)

V784 Ophiuchi: an RR Lyrae star with multiple blazhko modulations.

DE PONTHIERE P., HAMBSCH F.-J., KRAJCI T. and MENZIES K.

Abstract (from CDS):

The results of an observation campaign of V784 Ophiuchi over a time span of two years have revealed a multi-periodic Blazhko effect. A Blazhko effect for V784 Oph has not been reported previously. From the observed light curves, 60 pulsation maxima have been measured. The Fourier analyses of the (O-C) values and of magnitudes at maximum light (Mmax) have revealed a main Blazhko period of 24.51 days but also two other secondary Blazhko modulations with periods of 34.29 and 31.07 days. A complete light curve Fourier analysis with period04 has shown triplet structures based on main and secondary Blazhko frequencies close to the reciprocal of Blazhko periods measured from the 60 pulsation maxima.

Abstract Copyright: ∼

Journal keyword(s): variable stars - RR Lyrae stars

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* V784 Oph	RR*	17 35 25.1886248592	+07 45 21.243852288		11.90	12.71			A1:	44	0

Query : 2013JAVSO..41..214D

Basic data :

V* V784 Oph -- RR Lyrae Variable

* (ALS,CSI,...), RR* (2006AJ), V* (AN,V*), RR? (2018yCat), Pu* (2018AJ), NIR (2MASS), Opt (ATO)

17 35 25.1886248592 +07 45 21.243852288 (Optical) [ 0.0103 0.0091 90 ] A 2020yCat.1350....0G

17 33 00.5431554383 +07 47 15.569408630 [ 0.0103 0.0091 90 ]

031.2797049900757 +20.4080269388248 [ 0.0103 0.0091 90 ]

-21.860 -36.518 [0.014 0.011 90] A 2020yCat.1350....0G

V(km/s) -167 [10] / z(~) -0.000557 [0.000033] / cz -166.95 [10.00] D 2000AJ....119.2866B

0.5199 [0.0138] A 2020yCat.1350....0G

A1: E 1970MitVS...5..105G

B 11.90 [~] V3 E ~

V 12.71 [~] V4 D 2006AJ....132.1202K

G 12.457065 [0.009830] C 2020yCat.1350....0G

J 11.525 [0.021] C 2003yCat.2246....0C

H 11.244 [0.027] C 2003yCat.2246....0C

K 11.195 [0.025] C 2003yCat.2246....0C

g 12.647 [~] D 2020ApJS..249...18C

r 12.481 [~] D 2020ApJS..249...18C

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*`SV P 4374`**	`CSI+07-17330`	`NSVS 13713760`	`Gaia DR2 4487364105534330112`
`ALS 9341`	`GSC 00992-01694`	`TIC 319251807`	`Gaia DR3 4487364105534330112`
`AN 72.1935`	`LS IV +07 1`	*`V V784 Oph`**
`ATO J263.8548+07.7557`	`2MASS J17352518+0745212`	`ZTF J173525.16+074520.6`

References (44 between 1850 and 2026) (Total 44)
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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`ALS 9341`	`GSC 00992-01694`	`LS IV +07 1`	`2MASS J17352518+0745212`	*`V V784 Oph`**
`Gaia DR2 4487364105534330112`	`Gaia DR3 4487364105534330112`

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