WDS 17572+2400 MCA 50 (HD 163840)

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

WDS 17572+2400 MCA 50 (HD 163840) : NOTES

discov_num	notes	refcode
MCA 50	A close pair of solar-type stars, astrometric binary
	Balega et al. (1984) derive probable period of 940 days	Bag1984a
	Culver et al. (1980 BAAS 12, 250) report this to be a spectroscopic
	binary with a period of 2.6 years.	Bla1987
	Determination of these two old measures resulted from new reduction
	techniques developed over the past year; these data were reanalysed
	for a joint spectroscopic/speckle analysis of this system.	Hrt1992b
	All our CCD speckle data for this close system have been reprocessed
	and examined. In addition, we have listed 7 negative measures dating
	from observations made at the KPNO 2.1-m in the 1970's.
	Hartkopf et al. (1994) derive a combined spectroscopic/interferometric	Hrt1994
	solution.
	Hipparcos astrometric solution adopted some elements from the orbit of	HIP1997d
	McAlister et al. (1995).	McA1995
	Pourbaix gives combined solution for this resolved SB2, yielding	Pbx2000b
	orbital parallaxes and component masses.
	Orbit determined by fitting revised Hipparcos intermediate astrometric
	data. Derived component masses 1.12 +/- 0.17 and 0.72 +/- 0.11 Msun.	Ren2010
	Malkov et al. (2012) derive dynamical, photometric, and spectroscopic
	masses of 2.29 +/- 0.27, 2.15, and 1.79 Msun, respectively.	Mlk2012
	Kiefer et al. (2016) generates a combined spectroscopic/astrometric
	orbit, yielding masses 1.132 +/- 0.014 and 0.7421 +/- 0.0073 Msun, and
	a parallax 36.35 +/- 0.20 mas.	Kie2016

REFERENCES

refcode	metd	author	reference
Bag1984a	S j	Balega, Y.Y. & Ryadchenko, V.P.	1984SvAL...10...95B
Bag1984a		SvAL 10, 95, 1984
Bla1987	S j	Blazit, A. Bonneau, D., & Foy, R.	1987A&AS...71...57B
Bla1987		A&AS 71, 57, 1987
HIP1997d	orb -	Hipparcos	1997yCat.1239....0E
HIP1997d		Hipparcos Catalog, ESA SP-1200, 1997
HIP1997d		(DMSA/O Orbital Solutions)
Hrt1992b	Sc j	Hartkopf, W.I., McAlister, H.A., & Franz, O.G.	1992AJ....104..810H
Hrt1992b		AJ 104, 810, 1992
Hrt1994	Sc j	Hartkopf, W.I., McAlister,H.A., Mason, B.D., Barry, D.J., Turner, N., & Fu, H.-H.	1994AJ....108.2299H
Hrt1994		AJ 108, 2299, 1994
Kie2016	orb -	Kiefer, F., Halbwachs, J.-L., Arenou, F., Pourbaix, D., Famaey, B., Guillout, P.,	2016MNRAS.458.3272K
Kie2016		Lebreton, Y., Nebot Gomez-Moran, A., Mazeh, T., Salomon, J.-B., Soubiran, C., &
Kie2016		Tal-Or, L.
Kie2016		MNRAS 458, 3272, 2016
McA1995	orb -	McAlister, H.A., Hartkopf, W.I., & Mason, B.D.	1995AJ....110..366M
McA1995		AJ 110, 366, 1995
Mlk2012	not -	Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A.	2012A&A...546A..69M
Mlk2012		A&A 546, A69, 2012
Pbx2000b	orb -	Pourbaix, D.	2000A&AS..145..215P
Pbx2000b		A&AS 145, 215, 2000
Ren2010	orb -	Ren, S. & Fu, Y.	2010AJ....139.1975R
Ren2010		AJ 139, 1975, 2010

DISCOVERER

idgroup	discov	author
1	BAG	Balega, Y.Y. & Tikhonov, N.A.
26	BAG	Balega, I.I., Balega, Y.Y., Belkin, I.N., Maximov, A.F., Orlov, V.G., Pluzhnik,
26	BAG	E.A., Shkhagosheva, Z.U., & Vasyuk, V.A.
27	BAG	Balega, I.I., Balega, Yu.Yu., Falcke, H., Osterbart, R., Reinheimer, T., Scholler,
27	BAG	M., & Weigelt, G.
40	BAG	Balega, I.I., Balega, Yu.Yu., Hofmann, K.-H., Maksimov, A.F., Pluzhnik, E.A.,
40	BAG	Schertl, D., Shkhagosheva, Z.U., & Weigelt, G.
43	BAG	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Schertl, D.,
43	BAG	Shkhagosheva, Z.U., & Weigelt, G.
46	BAG	Balega, I.I., Balega, Y.Y., Hofmann, K.-H., Pluzhnik, E.A., Schertl, D.,
46	BAG	Shkhagosheva, Z.U., & Weigelt, G.
49	BAG	Balega, I.I., Balega, Y.Y., Hoffmann, K.-H., Malogolovets, E., Schertl, D.,
49	BAG	Shkhagosheva, Z.U., & Weigelt, G.
51	BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Pluzhnik, E.A.,
51	BAG	& Shkhagosheva, Z.
52	BAG	Balega, Y.Y., Beuzit, J.-L., Delfosse, X., Forveille, T., Perrier, C., Mayor, M.,
52	BAG	Segransan, D., Udry, S., et al.
53	BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Rastegaev, D.A.,
53	BAG	Shkhagosheva, Z.U., & Weigelt, G.
60	BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
60	BAG	Rastegaev, D.A., & Romanyuk, I.I.
61	BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
61	BAG	Rastegaev, D.A., & Romanyuk, I.I.
62	BAG	Balega, I.I., Balega, Yu.Yu., Gasanova, L.T., Dyachenko, V.V., Maksimov, A.F.,
62	BAG	Malogolovets, E.V., Rastegaev, D.A., & Shkhagosheva, Z.U.
87	HIP	(non-component double star solution: G = acceleration solution,
87	HIP	O = orbit solution, V = variability-induced mover, X = stochastic solution)
113	HRT	Hartkopf, W.I., McAlister, H.A., Mason, B.D., ten Brummelaar, T.A., Roberts, J.C.,
113	HRT	Jr., Turner, N.H., & Wilson, J.W.
114	HRT	Hartkopf, W.I., W.I., Mason, B.D., Gies, D.R., ten Brummelaar, T.,
114	HRT	McAlister, H.A., Moffat, A.F.J., Shara, M.M., & Wallace, D.J.
119	HRT	Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E.,
119	HRT	Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al.
120	HRT	Hartkopf, W.I., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., Turner, N.H.,
120	HRT	ten Brummelaar, T.A., Prieto, C.M., Ling, J.F., & Franz, O.G.
160	HRT	Mason, B.D., Henry, T.J., Soderblom. D.R., Hartkopf, W.I., Holdenreid, E.R.,
160	HRT	Rafferty, T.J., & Urban, S.E.
179	KIE	Kiefer, F., Halbwachs, J.-L., Arenou, F., Pourbaix, D., Famaey, B., Guillout, P.,
179	KIE	Lebreton, Y., Nebot Gomez-Moran, A., Mazeh, T., Salomon, J.-B., Soubiran, C., &
181	KIE	Kiefer, F., Halbwachs, J.-L., Lebreton, Y., Soubiran, C., Arenou, F., Pourbaix, D.,
181	KIE	Famaey, B., Guillout, P., Ibata, R. & Mazeh, T.
265	PBX	Pourbaix, D., Nidever, D., McCarthy, C., Butler, R.P., Tinney, C.G., Marcy, G.W.,
265	PBX	Jones, H.R.A., Penny, A.J., et al.
266	PBX	Pourbaix, D., Tokovinin, A.A., & Batten, A.H., Fekel, F.C., Hartkopf, W.I.,
266	PBX	Levato, H., Morrell, N.I., Torres, G., & Udry, S.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17572+2400	MCA 50		2003	22	180	0.1	6.30	7.90	G2V+K2V	NOD	175714.34+235944.6
17572+2400	MCA 50		2007	23	157	0.1	6.30	7.90	G2V+K2V	NOD	175714.34+235944.6
17572+2400	MCA 50		2012	29	163	0.1	6.30	7.90	G2V+K2V	NO	175714.34+235944.6

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