WDS 11551+4629 BAG 46 Da,Db

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

WDS 11551+4629 BAG 46 Da,Db : NOTES

discov_num	notes	refcode
A 1777	65 UMa. The primary is the eclipsing binary DN UMa,
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	Discrepant 1995.3159 speckle measure found not due to a typographical	Hrt1997
	error in theta, following reexamination of original data by authors.
	Presumably there was an identification error while pointing telescope,
	although no probable match to known close pairs in the vicinity has
	been found.
65 UMa	After subtracting out the effects of the 118y AB pair, Zasche et al.
	(2012) find a 640d variation, which they attribute to a closer Aa,Ab
	pair. The 1.7d eclipsing pair DN UMa, then, is assumed to be Aa1,Aa2.
	Their analysis determines a distance 234 +/- 29 pc to the system
	(compared with 212 +/- 30 pc from the revised Hipparcos reduction of
	van Leeuwen 2007), a and total mass of 8.25 +/- 1.85 Msun. Derived	vlF2007
	spectral types, masses, and radii of the components are as follows:
	Aa1 A7 1.74 +/- 0.06 Msun 1.86 +/- 0.08 Rsun
	Aa2 A7 1.71 0.06 1.81 0.08
	Ab A1 2.4 0.4
	B 2.4 2.0	Zas2012b
STF1579	STTA113 = STFA 20.
	AB,C: H 1 72.	MEv2010
	May be a physical septuple: the 1.7d eclipsing pair (2), the 640d
	spectroscopic component (+1), the 118y resolved pair A 1777 (+1)
	and the wider cpm pair (+1) STF1579AB,D. STF1579AB,C also has similar
	proper motion and may be physical and the D component has been split
	interferometrically (BAG 46Da,Db).

REFERENCES

refcode	metd	author	reference
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Hrt1997	Sc j	Hartkopf, W.I., McAlister, H.A., Mason, B.D., ten Brummelaar, T.A., Roberts, J.C.,	1997AJ....114.1639H
Hrt1997		Jr., Turner, N.H., & Wilson, J.W.
Hrt1997		AJ 114, 1639, 1997
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
VlF2007	-	van Leeuwen, F.	2007A&A...474..653V
VlF2007		A&A 474, 653, 2007
Zas2012b	orb -	Zasche, P., Uhlar, R., Slechta, M., Wolf, M., Harmanec, P., Nemravova, J.A., &	2012A&A...542A..78Z
Zas2012b		Korcakova, D.
Zas2012b		A&A 542, A78, 2012

DISCOVERER

idgroup	discov	author
1	A	Aitken, R.G.
312	BAG	Balega, Y.Y. & Tikhonov, N.A.
335	BAG	Balega, I.I., Balega, Y.Y., Belkin, I.N., Maximov, A.F., Orlov, V.G., Pluzhnik,
335	BAG	E.A., Shkhagosheva, Z.U., & Vasyuk, V.A.
336	BAG	Balega, I.I., Balega, Yu.Yu., Falcke, H., Osterbart, R., Reinheimer, T., Scholler,
336	BAG	M., & Weigelt, G.
341	BAG	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Shkhagosheva, Z.U., &
341	BAG	Vasyuk, V.A.
346	BAG	Balega, I.I., Balega, Yu.Yu., Hofmann, K.-H., Maksimov, A.F., Pluzhnik, E.A.,
346	BAG	Schertl, D., Shkhagosheva, Z.U., & Weigelt, G.
349	BAG	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Schertl, D.,
349	BAG	Shkhagosheva, Z.U., & Weigelt, G.
352	BAG	Balega, I.I., Balega, Y.Y., Hofmann, K.-H., Pluzhnik, E.A., Schertl, D.,
352	BAG	Shkhagosheva, Z.U., & Weigelt, G.
355	BAG	Balega, I.I., Balega, Y.Y., Hoffmann, K.-H., Malogolovets, E., Schertl, D.,
355	BAG	Shkhagosheva, Z.U., & Weigelt, G.
357	BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Pluzhnik, E.A.,
357	BAG	& Shkhagosheva, Z.
358	BAG	Balega, Y.Y., Beuzit, J.-L., Delfosse, X., Forveille, T., Perrier, C., Mayor, M.,
358	BAG	Segransan, D., Udry, S., et al.
359	BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Rastegaev, D.A.,
359	BAG	Shkhagosheva, Z.U., & Weigelt, G.
366	BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
366	BAG	Rastegaev, D.A., & Romanyuk, I.I.
367	BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
367	BAG	Rastegaev, D.A., & Romanyuk, I.I.
368	BAG	Balega, I.I., Balega, Yu.Yu., Gasanova, L.T., Dyachenko, V.V., Maksimov, A.F.,
368	BAG	Malogolovets, E.V., Rastegaev, D.A., & Shkhagosheva, Z.U.
371	STF	Struve, F.G.W.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
11551+4629	BAG 46	Da,Db	2009	2	334	0.1	7.10	9.20	A1p F		115511.33+462811.2
11551+4629	BAG 46	Da,Db	2018	4	326	0.1	7.10	9.20	A1p+F	N	115511.33+462811.2

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