WDS 19294-0703 TOK 4 Aa,Ab

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19294-0703
TOK 4 Aa,Ab

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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

WDS 19294-0703 TOK 4 Aa,Ab : NOTES

discov_num	notes	refcode
KUI 91	A is the Cepheid U Aql.
	Aa,Ab: ISM 3. Ismailov made three observations of U Aql, but listed	Ism1992
	one observation as 19279+0659 and the others as 19279-0659. This
	typographical error led to the inclusion of 19279+0659ISM 3 in
	the WDS.
GAA 17	Aa1,2 : Cepheid with a period of 7.02d. Distance = 592 +/- 19 pc.
	M_Aa, M_Ab = 6.2 +/- 0.8 , 2.2 +/- 0.2 /msun.
	Combined visual-spectroscopic orbit.	GaA2019b
	Masses are 5.7 and 2.3 Msun. Estimated period = 5.1y,
	a = 5.9au = 0.01".	Evs2013

REFERENCES

refcode	metd	author	reference
Evs2013	Hp j	Evans, N.R., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M., & Tingle, E.	2013AJ....146...93E
Evs2013	+X	AJ 146, 93, 2013
GaA2019b	Kv j	Gallenne, A., Kervella, P., Borgniet, S., Merand, A., Pietrzynski, G., Gieren, W.,	2019A&A...622A.164G
GaA2019b	+Kc	Monnier, J.D., Schaefer, G.H., Evans, N.R., Anderson,R.I., Baron, F.,
GaA2019b	+orb
GaA2019b		A&A 622, A164, 2019
Ism1992	Ig u	Ismailov, R.M.	1992A&AS...96..375I
Ism1992		A&AS 96, 375, 1992

DISCOVERER

discov	author
EVS	Udalski, A. & Evans, N.R.
EVS	Evans, N.R., Schaefer, G.H., Bond, H., Bono, G., Karovska, M., Nelan, E.,
EVS	Sasselov, D., & Mason, B.D.
EVS	Evans, N.R., Pillitteri, I., Wolk, S., Karovska, M., Tingle, E., Guinan, E.,
EVS	Engle, S., Bond, H.E., Schaefer, G.H., & Mason, B.D.
EVS	Evans, N.R., Karovska, M., Bond, H.E., Schaefer, G.H., Sahu, K.C., Mack, J.,
EVS	Nelan, E.P., Gallenne, A. & Tingle, E.D.
EVS	Evans, N.R., Pillitteri, I., Molnar, L., Szabados, L., Plachy, E., Szabo, R.,
EVS	Engle, S., Guinan, E., Wolk, S., Gunther, H.M., Neilson, H., Marengo, M., Matthews,
EVS	AJ 159, 121, 2020
EVS	Evans, N.R., Gunther, H.M., Bond, H.E., Schaefer, G.H., Mason, B.D., Karovska, M.,
EVS	Tingle, E., Wolk, S., Engle, S., Guinan, E., Pillitteri, I., Proffitt, C.,
EVS	ApJ 905, 81, 2020
EVS	Evans, N.R., Gallenne, A., Kervella, P., Gunther, H.M., Kuraszkiewicz, J.,
EVS	Anderson, R.I., Proffitt, C., Merand, A., Trahin, B., Viviani, G. & Shetye, S.
GAA	Gallenne, A., Merand, A., Kervella, P., Breitfelder, J., Le Bouquin, J.-B.,
GAA	Monnier,J.D., Gieren, W., Pilecki, B., & Pietryznski, G.
GAA	Gallenne, A., Merand, A., Kervella, P., Monnier, J.D., Schaefer, G.H., Baron, F.,
GAA	Breitfelder, J., Le Bouquin, J.-B., Roettenbacher, R.M., Gieren, W.,
GAA	Pietrzynski, G., McAlister, H., et al.
GAA	Gallenne, A., Pietrzynski, G., Graczyk, D., Konorski, P., Kervella, P.,
GAA	Merand, A., Gieren, W., Anderson, R.L., & Villanova, S.
GAA	Gallenne, A., Kervella, P., Evans, N.R., Proffitt, C.R., Monnier, J.D., Merand, A.,
GAA	Borgniet, S., Kraus, S., Roettenbacher, R.M., Baron, F., Pilecki, B., Taormina, M.,
GAA	ApJ 867, 121, 2018
GAA	Gallenne, A., Pietrzynski, G., Graczyk, D., Pilecki, B., Storm, J., Nardetto, N.,
GAA	Taormina, M., Gieren, W., Tkachenko, A., Kervella, P., Merand, A. & Weber, M.
GAA	Gallenne, A., Kervella, P., Borgniet, S., Merand, A., Pietrzynski, G., Gieren, W.,
GAA	Monnier, J.D., Schaefer, G.H., Evans, N.R., Anderson,R.I., Baron, F.,
GAA	A&A 622, A164, 2019
GAA	Gallenne, A., Evans, N.R., Kervella, P., Monnier, J.D., Proffitt, C.R., Schaefer,
GAA	A&A 693, A111, 2025
TOK	Tokovinin, A., Cantarutti, R., Tighe, R., Schurter, P., van der Bliek, N.,
TOK	Martinez, M., & Mondaca, E.
TOK	Tokovinin, A., Corbett, H., Fors, O., Howard, W., Law, N.M., Moe, M.,
TOK	Tokovinin, A. & Briceno, C.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
19294-0703	TOK 4	Aa,Ab	1990	3	174	0.0	6.37	7.60	F7-G1I-II	-07 4968	D	192921.36-070238.7
19294-0703	TOK 4	Aa,Ab	2016	6	202	0.0	4.60	4.90	F5I/II+A0	-07 4968	NO K	192921.36-070238.7

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