WDS	Disc	Text	RefCode
11182+3132	STF1523	xi UMa = 53 UMa = Alula Australis. A is known to have an unseen
	STF1523	companion, P = 1.83y. B is a spectroscopic binary. The first binary
	STF1523	star orbit was computed by Savary, a "librarian-observer" at Paris	Sav1830
	STF1523	Observatory giving courses in "social arithmetic," i.e., statistics.
	STF1523	Spectral types and masses of components assigned by ten Brummelaar et
	STF1523	al., based on adaptive optics observations.	TtB2000
	STF1523	Preliminary Keplerian AB 2-orbit model by Soderhjelm (1999) gives	Sod1999
	STF1523	good solution (failure in HIP).
	STF1523	Many-body perturbations observable but not yet studied. Cf. Aa,Bb
	STF1523	analysis in Mason et al. (1995)	Msn1995
	STF1523	Both orbits are visual and spectroscopic. The orbit of the visible
	STF1523	AB pair includes the secular perturbations in inclination, node,
	STF1523	longitude of periastron, and K. Star B is also SB1, P = 3.98 d.
	STF1523	The short-period pair has been resolved by infrared speckle
	STF1523	interferometry	Mcy1983
	STF1523	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	STF1523	HR 4375 (A component of STF1523) was misidentified as HR 4374 (B
	STF1523	component) in McAlister (1978).	McA1978c
	STF1523	An orbital analysis of xi UMa, including the AB pair, the astrometric
	STF1523	companion, and the newly-discovered Bc companion, has been published
	STF1523	by Mason et al. (1995).	Msn1995
	STF1523	AB: H 1 2.	MEv2010
	CHR 178	Bb. Abt & Biggs (1972) note variable RV.	AbH1972
	CHR 178	Given the typical lack of accuracy associated with astrometric orbits	Tok2010b
	CHR 178	it is possible that in the doubling of peaks CHR 178 is actually the
	CHR 178	known Aa,Ab observing when the faint Ab was flaring. In this
	CHR 178	interpretation, the second elongated observation of CHR 178 is assumed
	CHR 178	to be false.
	WTE 1	AD: Faint T8.5 brown dwarf companion at separation ∼4000au exhibits
	WTE 1	common proper motion. IR luminosity and color suggest that mass of
	WTE 1	companion 14 and 38 Mjup for system ages 2 and 8 Gyr, respectively.	WtE2013