WDS 20333+3323 RAO 71 AE

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20333+3323
RAO 71 AE

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

WDS 20333+3323 RAO 71 AE : NOTES

discov_num	notes	refcode
HJ 1535	AB: A is SB1 (CfA: P=1342d = 3.67y) and astrometric binary (Goldin &	Gln2007
	Makarov 2007, P=1437d)	Tok2014d
	AC and AD: Optical pairs, based on study of relative motion of the
	components using the method of apparent motion parameters.	Kiy2008
	A new 2+2 quadruple system. The outer 17" binary HJ 1535 AB has been .
	known since 1828 (Herschel 1831). If B were a background star, the PM H	J_1831
	of A, 0".208/y, would have moved it by 38" in 185 yr. The pair AB is .
	therefore undoubtedly physical. The discrepant PM of B reported in .
	the WDS could be caused by the subsystem Ba,Bb discovered here. The A .
	component has an astrometric subsystem Aa,Ab with P = 3.9 yr (Goldin .
	& Makarov 2007), confirmed spectroscopically by D. Latham. The B G	ln2007
	component was tentatively resolved by Robo-AO, but was thought to be .
	too uncertain to publish in Riddle et al. (2015). Now Ba,Bb is R	AO2015
	clearly resolved at 0".17. Its estimated period is ~30 yr. The field .
	is extremely crowded and another faint star E is detected at 12".1 .
	from A by both Robo-AO and PALM-3000. Comparison with 2MASS shows .
	relative motion opposite to PM(A), so AE is optical. R	br2015d
RBR 30	Ba,Bb: incorrectly labelled RBR 29 in Table 1 of Roberts et al. R	br2015d
HJ 1535	AC: Rectilinear solution by Hurowitz et al. (2014).	USN2014b

REFERENCES

refcode	metd	author	reference
Gln2007	orb -	Goldin, A. & Makarov, V.V.	2007ApJS..173..137G
Gln2007		ApJS 173, 137, 2007
Gln2007		(Note: Astrometric orbits based on merged NDAC and FAST reductions of Hipparcos
Gln2007		data. Values of T0 are relative to 1991.25 = JD 2448349.0625)
Kiy2008	-	Kiyaeva, O.V., Kiselev, A.A. & Izmailov, I.S.	2008SvAL...32..405K
Kiy2008		SvAL 34, 405, 2008
Tok2014d	E2 -	Tokovinin, A.	2014AJ....147...86T
Tok2014d		AJ 147, 86, 2014
USN2014b	lin -	Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D.	2014IAUDS.183....1H
USN2014b		Inf. Circ. 183, 1, 2014

DISCOVERER

idgroup	discov	author
1	HJ	Herschel, J.F.W.
50	RAO	Robo AO (Palomar 60" AO project or KPNO 2.1m)
50	RAO	Law, N.M., Morton, T., Baranec, C., Riddle, R., Ravichandran, G., Ziegler, C.,
50	RAO	Johnson, J.A., Tendulkar, S.P., Bui, K., Burse, M.P., Das, H., Dekany, R., et al.
51	RAO	Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr.,
51	RAO	Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
51	RAO	Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
56	RAO	Baranec, C., Ziegler, C., Law, N.M., Morton, T., Riddle, R.L., Atkinson, D.,
56	RAO	Schonhut, J., & Crepp, J.
57	RAO	Ziegler, C., Law, N.M., Nicholas, M., Morton, T., Baranec, C., Riddle, R.L.,
57	RAO	Atkinson, D., Baker, A., Roberts, S., & Ciardi, D.R.
58	RAO	Schonhut-Stasik, J.S., Baranec, C., Huber, D., Ziegler, C., Atkinson, D., Gaidos,
58	RAO	E., Law, N.M., Riddle, R., Hagelberg, J., van der Marel, N., & Hodapp, K.W.
59	RAO	Hillenbrand, L.A., Zhang, C., Riddle, R.L., Baranec, C., Ziegler, C., Law, N.M. &
59	RAO	Stauffer, J.
61	RAO	Ziegler, C., Law, N.M., Baranec, C., Riddle, R., Duev, D.A., Howard, W.,
61	RAO	Jensen-Clem, R., Kulkarni, S.R., Morton, T. & Salama, M.
62	RAO	Ziegler, C., Law, N.M., Baranec, C., Morton, T., Riddle, R., De Lee, N., Huber, D.,
62	RAO	Mahadevan, S. & Pepper, J.
63	RAO	Bowler, B.P., Hinkley, S., Ziegler, C., Baranec, C., Gizis, J.E., Law, N.M., Liu,
63	RAO	M.C., Shah, V.S., Shkolnik, E.L., Riaz, B. & Riddle, R.
64	RAO	Schonhut-Stasik, J.S., Huber, D., Baranec, C., Lamman, C., Salama, M., Jensen-Clem,
64	RAO	R., Duev, D.A., Riddle, R., Kulkarni, S.R. & Law, N.M.
65	RAO	Lamman, C., Baranec, C., Berta-Thompson, Z.K., Law, N.M., Schonhut-Stasik, J.,
65	RAO	Ziegler, C., Salama, M., Jensen-Clem, R., Duev, D.A., Riddle, R., Kulkarni, S.R.,
65	RAO	Winters, J.G. & Irwin, J.M.
68	RAO	Salama, M., Ou, J., Barance, C., Liu, M.C., Bowler, B.P., Barnes, P., Bonnet, M.,
68	RAO	Chun, M., Duev, D.A., Goebel, S., Hall, D., Jacobson, S., Jensen-Clem, R., Law,
68	RAO	N.M., Lockhart, C., Riddle, R., Situ, H., Warmbier, E. & Zhang, Z.
69	RAO	Salama, M., Ziegler, C., Baranec, C., Liu, M.C., Law, N.M., Riddle, R., Henry,
69	RAO	T.J., Winters, J.G., Jao, W.-C., Ou, J. & Ruiz, A.H.
70	RBR	Roberts, L.C., Jr. & Neyman, C.R.
71	RBR	Roberts, L.C., Jr., Turner, N.H., Bradford, L.W., ten Brummelaar, T., Oppenheimer,
71	RBR	B., Kuhn, J., Whitman, K., Perrin, M., et al.
76	RBR	Roberts, L.C., Jr., Gies, D.R., Parks, J.R., Grundstrom, E.D., McSwain, M.,
76	RBR	Berger, D., Mason, B., ten Brummelaar, T. & Turner, N.
83	RBR	Roberts, L.C., Jr., Turner, N.H., ten Brummelaar, T.A., Mason, B.D., &
83	RBR	AJ 142, 175, 2011
83	RBR	Roberts, L.C., Jr., Rice, E.L., Beichman, C.A., Brenner, D., Burruss, R.,
83	RBR	Crepp, J.R., Dekany, R.G., Hillenbrand, L.A., Hinkley, S., Ligon, E.R.,
83	RBR	Lockhart, T.G., King, D., et al.
84	RBR	Roberts, L.C., Jr., Bouchez, A.H., Roberts, J.E., Burruss, R., Crepp, J.R., Mawet,
84	RBR	D., Ohara, C.M., Cromer, J.L., Dekany, R.G., Troy, M., Velur, V. & Li, J.
85	RBR	Roberts, L.C., Jr., Tokovinin, A., Mason, B.D., Riddle, R.L., Hartkopf, W.I.,
85	RBR	Law, N.M., & Baranec, Ch.
86	RBR	Roberts, L.C., Jr., Mason, B.D., Neyman, C.R., Wu, Y., Riddle, R.L., Shelton, J.,
86	RBR	Angione, J., Baranec, Ch., Bouchez, A., Bui, K., Burruss, R., Burse, M., et al.
87	RBR	Roberts, L.C., Jr., Oppenheimer, R., Crepp, J.R., Baranec, Ch., Beichman, C.A.,
87	RBR	Brenner, D., Burruss, R., Cady, E., Luszcz-Cook, S., Dekany, R.,
87	RBR	Hillenbrand, L.A., Hinkley, S., et al.
90	RBR	Roberts, L.C., Jr., Mason, B.D., Aguilar, J., Carson, J., Crepp, J., Beichman, C.,
90	RBR	Brenner, D., Burruss, R., Cady, E., Luszcz-Cook, S., Dekany, R., Hillenbrand, L.,
90	RBR	et al.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20333+3323	RAO 71	AE	2012	2	225	12.3	8.29	15.00	F5		203319.99+332323.6
20333+3323	RAO 71	AE	2013	4	226	12.1	8.29	15.00	F5		203319.99+332323.6
20333+3323	RAO 71	AE	2015	5	225	12.5	8.29	15.00	F5	N	203319.99+332323.6

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