WDS 20577+2624 RAO 24 (HD 199598)

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20577+2624
RAO 24
HD 199598

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

WDS 20577+2624 RAO 24 (HD 199598) : NOTES

discov_num	notes	refcode
RAO 24	A new 0".6 binary detected by Robo-AO. It was targeted because of its .
	variable velocity (Nordstrom et al. 2004) and astrometric N	rd2004
	acceleration (Makarov & Kaplan 2005). The binary is confirmed here, M	kr2005
	helped by the large PM of the primary. Our photometry places B above .
	the MS. According to Guillout et al. (2009 A&A 504, 829), the target .
	is young, so its companion could indeed be a PMS star. The object was .
	already targeted by Metchev & Hillenbrand (2009) in their survey of M	et2009
	young stars, but the binary was not detected. After learning of our .
	discovery, Metchev was able to extract a measurement of the star from .
	the archival data (S. Metchev 2015, private communication). R	br2015d

REFERENCES

refcode	metd	author	reference
Rbr2017a	A j	Roberts, L.C., Jr., Tokovinin, A., Mason, B.D., & Marinan, A.D.	2017AJ....153..100R
Rbr2017a	+Ag	AJ 153, 100, 2017

DISCOVERER

idgroup	discov	author
1	RAO	Robo AO (Palomar 60" AO project or KPNO 2.1m)
1	RAO	Law, N.M., Morton, T., Baranec, C., Riddle, R., Ravichandran, G., Ziegler, C.,
1	RAO	Johnson, J.A., Tendulkar, S.P., Bui, K., Burse, M.P., Das, H., Dekany, R., et al.
2	RAO	Riddle, R.L., Tokovinin, A., Mason, B.D., Hartkopf, W.I., Roberts, L.C., Jr.,
2	RAO	Baranec, C., Law, N.M., Bui, K., Burse, M.P., Das, H.K., Dekany, R.G.,
2	RAO	Kulkarni, S., Punnadi, S., Ramaprakash, A.N., & Tendulkar, S.P.
7	RAO	Baranec, C., Ziegler, C., Law, N.M., Morton, T., Riddle, R.L., Atkinson, D.,
7	RAO	Schonhut, J., & Crepp, J.
8	RAO	Ziegler, C., Law, N.M., Nicholas, M., Morton, T., Baranec, C., Riddle, R.L.,
8	RAO	Atkinson, D., Baker, A., Roberts, S., & Ciardi, D.R.
9	RAO	Schonhut-Stasik, J.S., Baranec, C., Huber, D., Ziegler, C., Atkinson, D., Gaidos,
9	RAO	E., Law, N.M., Riddle, R., Hagelberg, J., van der Marel, N., & Hodapp, K.W.
10	RAO	Hillenbrand, L.A., Zhang, C., Riddle, R.L., Baranec, C., Ziegler, C., Law, N.M. &
10	RAO	Stauffer, J.
12	RAO	Ziegler, C., Law, N.M., Baranec, C., Riddle, R., Duev, D.A., Howard, W.,
12	RAO	Jensen-Clem, R., Kulkarni, S.R., Morton, T. & Salama, M.
13	RAO	Ziegler, C., Law, N.M., Baranec, C., Morton, T., Riddle, R., De Lee, N., Huber, D.,
13	RAO	Mahadevan, S. & Pepper, J.
14	RAO	Bowler, B.P., Hinkley, S., Ziegler, C., Baranec, C., Gizis, J.E., Law, N.M., Liu,
14	RAO	M.C., Shah, V.S., Shkolnik, E.L., Riaz, B. & Riddle, R.
15	RAO	Schonhut-Stasik, J.S., Huber, D., Baranec, C., Lamman, C., Salama, M., Jensen-Clem,
15	RAO	R., Duev, D.A., Riddle, R., Kulkarni, S.R. & Law, N.M.
16	RAO	Lamman, C., Baranec, C., Berta-Thompson, Z.K., Law, N.M., Schonhut-Stasik, J.,
16	RAO	Ziegler, C., Salama, M., Jensen-Clem, R., Duev, D.A., Riddle, R., Kulkarni, S.R.,
16	RAO	Winters, J.G. & Irwin, J.M.
19	RAO	Salama, M., Ou, J., Barance, C., Liu, M.C., Bowler, B.P., Barnes, P., Bonnet, M.,
19	RAO	Chun, M., Duev, D.A., Goebel, S., Hall, D., Jacobson, S., Jensen-Clem, R., Law,
19	RAO	N.M., Lockhart, C., Riddle, R., Situ, H., Warmbier, E. & Zhang, Z.
20	RAO	Salama, M., Ziegler, C., Baranec, C., Liu, M.C., Law, N.M., Riddle, R., Henry,
20	RAO	T.J., Winters, J.G., Jao, W.-C., Ou, J. & Ruiz, A.H.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20577+2624	RAO 24		2012	1	103	0.6	6.90	11.40	G0V		205739.68+262418.3
20577+2624	RAO 24		2013	2	100	0.6	7.01	11.00	F9V		205739.67+262418.2
20577+2624	RAO 24		2015	6	94	0.7	7.01	11.00	F9V	NO	205739.67+262418.2
20577+2624	RAO 24		2018	7	88	0.8	7.01	11.00	F9V	NO	205739.67+262418.2

If you need more information about this double, apply for a data request form to the WDS.