17349+1234 MCY 4 (Rasalhague)

Coord 2000	17349+1234		Discov num	MCY   4		Comp			Coord arcsec 2000	17 34 56.06 +12 33 36.1
Date first	1982		Date last	2023		Obs	29
Pa first	243		Pa last	248.2		P.A. Now (θ)	243.7°
Sep first	0.8		Sep last	0.692		Sep. Now (ρ)	0.786"
Mag pri	2.10		Mag sec	5.00		delta mag (ΔM)	2.9		Spectral class	A5III (white)
Pri motion ra	+110		Sec motion ra
Pri motion dec	-223		Sec motion dec
Notes	N O (See Notes, Orbital solution)

This double is physical.

Common name	Rasalhague		Var name	NSV9189 Oph		Constellation	Ophiuchus		SAO	102932
HIP	86032		Tycho2	1000-02508-1		Gaia DR2	4493746564376278400		HD	159561
HR	6556		GC	23837		BD	BD+12 3252		Bayer	Alpha Ophiuchi
Bayer name	Alp Oph		Flamsteed	55 Ophiuchi		Flamsteed name	55 Oph		FK5	656
Distance	14.9		Distance ly	48.6		Bayer greek	α Oph

Period (P)	3139.72d (8.6y)	± 0.28	Periastron (T)	56028.22d (2012.276y)	± 0.029	Semi-major axis (a)	409.8m	± 0.3
Eccentricity (e)	0.93912	± 0.00013	Inclination (i)	130.679°	± 0.067	Longitude of periastron (ω)	170.21°	± 0.23
Node (Ω)	236.86°	± 0.16	Notes	n		Reference	CIA2021c
Equinox	2000		Last observation	2019		Grade	2	(1=Definitive, 9=Indet.)

label theta rho 2000-01-01 241.7 0.780 2001-01-01 238.9 0.720 2002-01-01 235.3 0.590 2003-01-01 228.1 0.349 2004-01-01 269.0 0.185 2005-01-01 253.6 0.494 2006-01-01 248.9 0.663 2007-01-01 245.8 0.756 2008-01-01 243.2 0.788 2009-01-01 240.6 0.764 2010-01-01 237.6 0.677 2011-01-01 233.2 0.510 2012-01-01 218.6 0.185 2013-01-01 259.1 0.337 2014-01-01 251.4 0.574 2015-01-01 247.6 0.709 2016-01-01 244.8 0.776 2017-01-01 242.2 0.785 2018-01-01 239.5 0.737 2019-01-01 236.1 0.621 2020-01-01 230.2 0.408 2021-01-01 287.6 0.085 2022-01-01 255.0 0.449 2023-01-01 249.6 0.637 2024-01-01 246.4 0.743 2025-01-01 243.7 0.786 2026-01-01 241.1 0.773 2027-01-01 238.3 0.699 2028-01-01 234.3 0.550 2029-01-01 224.6 0.272 2030-01-01 262.4 0.271 2031-01-01 252.4 0.538 2032-01-01 248.2 0.688 2033-01-01 245.3 0.767 2034-01-01 242.7 0.788 2035-01-01 240.1 0.751 2036-01-01 236.9 0.650 2037-01-01 231.8 0.460 2038-01-01 186.9 0.052 2039-01-01 256.7 0.399 2040-01-01 250.4 0.609 2041-01-01 246.9 0.728 2042-01-01 244.2 0.782 2043-01-01 241.7 0.780 2044-01-01 238.9 0.718 2045-01-01 235.2 0.586 2046-01-01 227.8 0.343 2047-01-01 268.1 0.193 2048-01-01 253.5 0.498 2049-01-01 248.9 0.666 2050-01-01 245.8 0.757

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. Measures: green=micrometric, blue=interferometric, purple=photographic

discov_num	notes	refcode
MCY 4	alp Oph = Rasalhague.
	The companion has been detected by infrared speckle interferometry.	Mcy1983
	Kamper et al. derive a combined astrometric/spectroscopic solution.	Kpr1989
	Gatewood derives a weighted mean parallax of 68.12 +/- 0.75 mas from	Gat2005
	MAP and previous results. Masses resulting from solution are 2.842
	+/- 0.194 and 0.778 +/- 0.058 Msun; spectral types are A2V and K2V.
	This object was incorrectly identified as HD 159571 by Balega et al.	Bag1984b
	1999: Boccaletti et al. (2001) theta was flipped from 116.3 to 63.7,	Boc2001
	as noted by Gatewood (2005).	Gat2005
	Intensity Interferometer Limb-darkened diameter 1.63 +/- 0.13 mas.	HBr1974
	NPOI Limb-darkened diameter 1.855 +/- 0.012 mas, Sp = A4-7III,	NOI2018
	R = 2.97 +/- 0.05 \rsun, Teff = 7627 +/- 98 K, L = 26.9 +/- 1.6 \lsun,
	M = 1.93 +/- 0.03 \msun, Age = 0.91 +/- 0.03 Gyr.
	Orbital elements by Hinkley et al. (2011) gives a mass ratio of	Hnk2011
	2.76 +0.43/-0.27 and individual masses 2.40 +0.23/-0.37 and 0.85
	+0.06/-0.04 Msun, assuming a parallax of 69.1 mas.

refcode	metd	author	reference
Bag1984b	S j	Balega, Y.Y., Bonneau, D., & Foy, R	1984A&AS...57...31B
Bag1984b		A&AS 57, 31, 1984
Boc2001	As -	Boccaletti, A., Moutou, C., Mouillet, D., Lagrange, A.-M., & Augereau, J.-C.	2001A&A...367..371B
Boc2001	+C	A&A 367, 371, 2001
CIA2021c	Kc j	Gardner, T., Monnier, J.D., Fekel, F.C., Williamson, M., Baron, F., Hinkley, S.,	2021ApJ..921....41G
CIA2021c	+A
CIA2021c	+orb
CIA2021c
Gat2005	orb -	Gatewood, G.D.	2005AJ....130..809G
Gat2005		AJ 130, 809, 2005
HBr1974	-	Hanbury Brown, R., Davis, J., & Allen, L.R.	1974MNRAS.167..121H
HBr1974		MNRAS 167, 121, 1974
HBr1974
Hnk2011	orb j	Hinkley, S., Monnier, J.D., Oppenheimer, B.R., Roberts, L.C., Ireland, M.,	2011ApJ...726..104H
Hnk2011	+A	Zimmerman, N., Brenner, D., Parry, I.R., et al.
Hnk2011		ApJ 726:104, 2011
Kpr1989	Si j	Kamper, K.W., Legget, D., & McCarthy, D.W.	1989AJ.....98..686K
Kpr1989	+orb	AJ 98, 686, 1989
Mcy1983	Si -	McCarthy, D.W.	1983nssl.conf..107M
Mcy1983	+C	IAU Colloq 76, 107, 1983
NOI2018	not j	Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter,	2018AJ....155...30B
NOI2018
NOI2018		AJ 155, 30, 2018

discov	author
BAG	Balega, Y.Y. & Tikhonov, N.A.
BAG	Balega, I.I., Balega, Y.Y., Belkin, I.N., Maximov, A.F., Orlov, V.G., Pluzhnik,
BAG	E.A., Shkhagosheva, Z.U., & Vasyuk, V.A.
BAG	Balega, I.I., Balega, Yu.Yu., Falcke, H., Osterbart, R., Reinheimer, T., Scholler,
BAG	M., & Weigelt, G.
BAG	Balega, I.I., Balega, Yu.Yu., Hofmann, K.-H., Maksimov, A.F., Pluzhnik, E.A.,
BAG	Schertl, D., Shkhagosheva, Z.U., & Weigelt, G.
BAG	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Schertl, D.,
BAG	Shkhagosheva, Z.U., & Weigelt, G.
BAG	Balega, I.I., Balega, Y.Y., Hofmann, K.-H., Pluzhnik, E.A., Schertl, D.,
BAG	Shkhagosheva, Z.U., & Weigelt, G.
BAG	Balega, I.I., Balega, Y.Y., Hoffmann, K.-H., Malogolovets, E., Schertl, D.,
BAG	Shkhagosheva, Z.U., & Weigelt, G.
BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Pluzhnik, E.A.,
BAG	& Shkhagosheva, Z.
BAG	Balega, Y.Y., Beuzit, J.-L., Delfosse, X., Forveille, T., Perrier, C., Mayor, M.,
BAG	Segransan, D., Udry, S., et al.
BAG	Balega, I.I., Balega, Yu.Yu., Maksimov, A.F., Malogolovets, E.V., Rastegaev, D.A.,
BAG	Shkhagosheva, Z.U., & Weigelt, G.
BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
BAG	Rastegaev, D.A., & Romanyuk, I.I.
BAG	Balega, Yu.Yu., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E.V.,
BAG	Rastegaev, D.A., & Romanyuk, I.I.
BAG	Balega, I.I., Balega, Yu.Yu., Gasanova, L.T., Dyachenko, V.V., Maksimov, A.F.,
BAG	Malogolovets, E.V., Rastegaev, D.A., & Shkhagosheva, Z.U.
BOC	Boccaletti, A., Riaud, P., Baudoz, P., Baudrand, J., Rouan, D., Gratadour, D.,
BOC	Lacombe, F. & Lagrange, A.-M.
CIA	McAlister, H.A., ten Brummelaar, T.A., Gies, D.R., Huang, W., Bagnuolo, Jr., W.G.,
CIA	Shure, M.A., Sturmann, J., Sturmann, L., Turner, N.H., Taylor, S.F., Berger, D.H.,
CIA	Baines, E.K., Grundstrom, E. & Ogden, C.
CIA	Berger, D.H., Gies, D.R., McAlister, H.A., ten Brummelaar, T.A., Henry, T.J.,
CIA	Sturmann, J., Sturmann, L., Turner, N.H., Ridgway, S.T., Aufdenberg, J.P. &
CIA	Di Holco, E., Absil, O., Augereau, J.-C., Merand, A., Coude du Foresto, V.,
CIA	Thevenin, F., Defrere, D., Kervella, P., ten Brummelaar, T.A., McAlister, H.A.,
CIA	Ridgway, S.T., Sturmann, J., Sturmann, L. & Turner, N.H.
CIA	Zhao, M., Gies, D., Monnier, J.D., Thureau, N., Pedretti, E., Baron, F.,
CIA	Merand, A., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Turner, N.,
CIA	Sturmann, J., Sturmann, L., Farrington, C., & Goldfinger, P.J.
CIA	Baines, E.K., McAlister, H.A., ten Brummelaar, T.A., Turner, N.H., Sturmann, J.,
CIA	Sturmann, L., Goldfinger, P.J. & Ridgway, S.T.
CIA	Boyajian, T.S., McAlister, H.A., Baines, E.K., Gies, D.R., Henry, T., Jao, W.-C.,
CIA	O'Brien, D., Raghavan, D., Touhami, Y., ten Brummelaar, T.A., Farrington, C.,
CIA	Goldfinger, P.J., Sturmann, L., Sturmann, J., Turner, N.H. & Ridgway, S.
CIA	Kervella, P., Merand, A., Pichon, B., Thevenin, F., Heiter, U., Bigot, L.,
CIA	ten Brummelaar, T.A., McAlister, H.A., Ridgway, S.T., Turner, N., Sturmann, J.,
CIA	Sturmann, L., Goldfinger, P.J. & Farrington, C.
CIA	Baines, E.K., McAlister, H.A., ten Brummelaar, T.A., Sturmann, J., Sturmann, L.,
CIA	Turner, N.H. & Ridgway, S.T.
CIA	Boyajian, T.S., McAlister, H.A., Cantrell, J.R., Gies, D.R., ten Brummelaar, T.A.,
CIA	Farrington, C., Goldfinger, P.J., Sturmann, L., Sturmann, J., Turner, N.H. &
CIA	Farrington, C.D., ten Brummelaar, T.A., Mason, B.D., Hartkopf, W.I., McAlister,
CIA	H.A., Raghavan, D., Turner, N.H., Sturmann, L., Sturmann, J., & Ridgway, S.T.
CIA	Baines, E.K., Dollinger, M.P., Cusano, F., Guenther, E.W., Hatzes, A.P.,
CIA	McAlister, H.A., ten Brummelaar, T.A., Turner, N.H., Sturmann, J., Sturmann, L.,
CIA	Goldfinger, P.J., Farrington, C.D. & Ridgway, S.T.
CIA	ten Brummelaar, T.A., O'Brien, D.P., Mason, B.D., Farrington, C.D.,
CIA	Fullerton, A.W., Gies, D.R., Grundstrom, E.D., Hartkopf, W.I., et al.
CIA	O'Brien, D.P., McAlister, H.A., Raghavan, D., Boyajian, T.S.,
CIA	ten Brummelaar, T.A., Sturmann, J., Sturmann, L., Turner, N.H., & Ridgway, S.
CIA	Monnier, J.D., Zhao, M., Pedretti, E., Millan-Gabet, R., Berger, J.-P., Traub, W.,
CIA	Schloerb, F.P., ten Brummelaar, T., McAlister, H., Ridgway, S., Sturmann, L.,
CIA	Sturmann, J., et al.
CIA	Raghavan, D., Farrington, C.D., ten Brummelaar, T.A., McAlister, H.A.,
CIA	Ridgway, S.T., Sturmann, L., Sturmann, J., & Turner, N.H.
CIA	Baron, F., Monnier, J., Pedretti, E., Zhao, M., Schaefer, G., Parks, R., Che, X.,
CIA	Thureau, N., ten Brummelaar, T.A., McAlister, H.A., Ridgway, S.T., Farrington, C.,
CIA	Sturmann, J., Sturmann, L., & Turner, N.
CIA	Che, X., Monnier, J.D., Tycner, C., Kraus, S., Zavala, R.T., Baron, F., Pedretti,
CIA	E., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Sturmann, J., Sturmann, L.,
CIA	& Turner, N.
CIA	Baines, E.K., White, R.J., Huber, D., Jones, J., Boyajian, T., McAlister, H.A.,
CIA	ten Brummelaar, T.A., Turner, N.H., Sturmann, J., Sturmann, L., Goldfinger, P.J.,
CIA	Farrington, C.D., Riedel, A.R., Ireland, M., von Braun, K. & Ridgway, S.T.
CIA	Boyajian, T.S., McAlister, H.A., van Belle, G., Gies, D.R., ten Brummelaar, T.A.,
CIA	von Braun, K., Farrington, C., Goldfinger, P.J., O'Brien, D., Parks, J.R.,
CIA	Richardson, N.D., Ridgway, S., Schaefer, G., Sturmann, L., Sturmann, J., Touhami,
CIA	Y., Turner, N.H. & White, R.
CIA	Boyajian, T.S., von Braun, K., van Belle, G., McAlister, H.A., ten Brummelaar,
CIA	T.A., Kane, S.R., Muirhead, P.S., Jones, J., White, R., Schaefer, G., Ciardi, D.,
CIA	Henry, T., Lopez-Morales, M., Ridgway, S., Gies, D., Jao, W.-C., Rojas-Ayala, B.,
CIA	Parks, J.R., Sturmann, L., Sturmann, J., Turner, N.H., Farrington, C., Goldfinger,
CIA	ApJ 757, 112, 2012
CIA	Gallenne, A., Monnier, J., Merand, A., Kervella, P., Kraus, S., Schaefer, G.H.,
CIA	Gieren, W., Pietrzynski, G., Szabados, L., Che, X., Baron, F., Pedretti,E., et al.
CIA	Absil, O., Defrere, D., Coude du Foresto, V., Di Folco, E., Merand, A., Augereau,
CIA	J.-C., Ertel, S., Hanot, C., Kervella, P., Mollier, B., Scott, N., Che, X. et al.
CIA	Boyajian, T.S., von Braun, K., van Belle, G., Farrington, C., Schaefer, G., Jones,
CIA	J., White, R., McAlister, H.A., ten Brummelaar, T.A., Ridgway, S., Gies, D.R.,
CIA	Sturmann, L., Sturmann, J., Turner, N.H., Goldfinger, P.J. & Vargas, N.
CIA	Farrington, C.D., ten Brummelaar, T.A., Mason, B.D., Hartkopf, W.I., Mourard, D.,
CIA	Moravveji, E., McAlister, H.A., Turner, N.H., Sturmann, L., & Sturmann, J.
CIA	von Braun, K., Boyajian, T.S., van Belle, G.T., Kane, S.R., Jones, J., Farrington,
CIA	C., Schaefer, G., Vargas, N., Scott, N., ten Brummelaar, T.A., Kephart, M., Gies,
CIA	D.R., Ciardi, D.R., Lopez-Morales, M., Mazingue, C., McAlister, H.A., Ridgway, S.,
CIA	Goldfinger, P.J., Turner, N.H. & Sturmann, L.
CIA	Mourard, D., Monnier, J., Meilland, A., Gies, D., Millour, F., Benisty, M.,
CIA	Che, X., Grundstrom, E.D., Ligi, R., Schaefer, G., Baron, F., Kraus, S.,
CIA	Zhao, M., Pedretti, E., Berio, P., Clausse, J.M., Nardetto, N., Perraut, K.,
CIA	Spang, A., Stee, P., Tallon-Bose, I., McAlister, H., ten Brummelaar, T.,
CIA	Ridgway, S.T., Sturmann, J., Sturmann, L., Turner, N. & Farrington, C.
CIA	Roettenbacher, R.M., Monnier, J., Henry, G.W., Fekel, F.C., Williamson, M.H.,
CIA	Pourbaix, D., Latham, D.W., Latham, C.A., Torres, G., Baron, F., Che, X.,
CIA	Kraus, S., et al.
CIA	Roettenbacher, R.M., Monnier, J., Fekel, F.C., Henry, G.W., Korhonen, H.,
CIA	Latham, D.W., Muterspaugh, M.W., Williamson, M.H., Baron, F.,
CIA	ten Brummelaar, T.A., Che, X., Harmon, R.O., et al.
CIA	Boyajian, T., von Braun, K., Feiden, G.A., Huber, D., Basu, S., Demarque, P.,
CIA	Fischer, D.A., Schaefer, G., Mann, A.W., White, T.T., Maestro, V., Brewer, J.,
CIA	Lamell, C.B., Spada, F., Lopez-Morales, M., Ireland, M., Farrington, C., van Belle,
CIA	G.T., Kane, S.R., Jones, J., ten Brummelaar, T.A., Ciardi, D.R., McAlister, H.A.,
CIA	Ridgway, S., Goldfinger, P.J., Turner, N.H. & Sturmann, L.
CIA	Gallenne, A., Merand, A., Kervella, P., Monnier, J., Schaefer, G.H.,
CIA	Roettenbacher, R.M., Gieren, W., Pietrzynski, G., McAlister, H.A.,
CIA	ten Brummelaar, T.A., Sturmann, J., Sturmann, L., Turner, N.H., & Anderson, R.I.
CIA	Richardson, N.D., Shenar, T., Roy-Loubier, O., Schaefer, G., Moffat, A.F.J.,
CIA	St-Louis, N., Gies, D.R., Farrington, C., Hill, G.M., Williams, P.M.,
CIA	Gordon, K., Pablo, H., & Ramiaramanantsoa, T.
CIA	Schaefer, G.H., Hummel, C.A., Gies, D.R., Zavala, R.T., Monnier, J.D.,
CIA	Walter, F.M., Turner, N.H., Baron, F., ten Brummelaar, T., Che, X.,
CIA	Farrington, C.D., Kraus, S., Sturmann, J., & Sturmann, L.
CIA	Gardner, T., Monnier, J.D., Fekel, F.C., Williamson, M., Duncan, D.K., White, T.R.,
CIA	Ireland, M., Adams, F.C., Barman, T., Baron, F., ten Brummelaar, T., Che, X.,
CIA	Huber, D., Kraus, S., Roettenbacher, R.M., Schaefer, G., Sturmann, J., Sturmann, L.,
CIA	ApJ 855, 1, 2018
CIA	Schaefer, G.H., White, R.J., Baines, E.K., Boyajian, T.S., ten Brummelaar, T.A.,
CIA	White, T.R., Huber, D., Mann, A.W., Casagrande, L., Grunblatt, S.K., Justesen,
CIA	Farrington, C.D., Fekel, F.C., Schaefer, G.H. & ten Brummelaar, T.A.
CIA	Lester, K.V., Gies, D.R., Schaefer, G.H., Farrington, C.D., Monnier, J.D.,
CIA	Lester, K.V., Gies, D.R., Schaefer, G.H., Farrington, C.D., Guo, Z., Matson, R.A.,
CIA	Lester, K.V., Fekel, F.C., Muterspaugh, M., Gies, D.R., Schaefer, G.H., Farrington,
CIA	Thomas, J.D., Richardson, N.D., Eldridge, J.J., Schaefer, G., Monnier, J.D.,
CIA	Sana, H., Moffat, A.F.J., Williams, P., Corcoran, M.F., Stevens, I.R., Weigelt, G.,
CIA	Zainol, F.D., Anugu, N., Le Bouquin, J.-B., ten Brumelaar, T.A., Campos, F., et al.
CIA	Klement, R., Hadrava, P., Rivinius, T., Baade, D., Cabezas, M., Heida, M.,
CIA	Schaefer, G.H., Gardner, T., Gies, D.R., Anugu, N., Lanthermann, C., Davies, C.L.,
CIA	Anderson, M.D., Monnier, J.D., Ennis, J., Labdon, A., Setterholm, B.R., Kraus, S.,
CIA	ten Brummelaar, T.A. & Le Bouquin, J.-B.
CIA	Gardner, T., Monnier, J.D., Fekel, F.C., Williamson, M., Baron, F., Hinkley, S.,
CIA	Gardner, T., Monnier, J.D., Fekel, F.C., Schaefer, G., Johnson, K.J.C., Le Bouquin,
CIA	Richardson, N.D., Lee, L., Schaefer, G., Shenar, T., Sander, A.A.C., Hill, G.M.,
CIA	Klement, R., Schaefer, G.H., Gies, D.R., Wang, L., Baade, D., Rivinius, T.,
CIA	Schaefer, G., Anugu, N., ten Brummelaar, T., Farrington, C., Gies, D., Jones, J.,
CIA	Morales, L.M., Sandquist, E.L., Schaefer, G.H., Farrington, C.D., Klement, R.,
CIA	Torres, G., Schaefer, G.H., Monnier, J.D., Anugu, N., Davies, C.L., Ennis, J.,
CIA	Farrington, C.D., Gardner, T., Klement, R., Kraus, S., Labdon, A., Lanthermann, C.,
CIA	Lester, K.V., Schaefer, G.H., Fekel, F.C., Gies, D.R., Henry, T.J., Jao, W.-C.,
CIA	Gardner, T., Monnier, J.D., Fekel, F.C., Le Bouquin, J.-B., Scovera, A., Schaefer,
CIA	Klement, R., Baade, D., Rivinius, T., Gies, D.R., Wang, L., Labadie-Bartz, J.,
CIA	De Furio, M., Gardner, T., Monnier, J., Meyer, M.R., Kratter, K., Schaefer, G.,
CIA	Lanthermann, C., Le Bouquin, J.-B., Sana, H., Merand, A., Monnier, J.D., Perrault,
CIA	K., Frost, A.J., Mahy, L., Gosset, E., De Becker, M., Kraus, S., Aruga, N. et al.
CIA	Lam, R., Sandquist, E.L., Schaefer, G.H., Farrington, C.D., Monnier, J.D., Anugu,
CIA	AJ 166, 29, 2023
CIA	Klement, R., Rivinius, T., Gies, D.R., Baade, D., Merand, A., Monnier, J.D.,
CIA	Echeverri, D., Xuan, J.W., Monnier, J.D., Delorme, J.-R., Wang, J.J., Jovanovic,
CIA	Evans, N.R., Schaefer, G.H., Gallenne, A., Torres, G., Horch, E.P., Anderson, R.I.,
CIA	Torres, G., Schaefer, G.H., Stefanik, R.P., Latham, D.W., Boden, A.F., Anugu, N.,
CIA	Evans, N.R., Gallenne, A., Kervella, P., Merand, A., Monnier, J., Anderson, R.I.,
CIA	Kuraszkiewicz, J., Anugu, N., Roettenbacher, R.M., Lanthermann, C., Gutierrez, M.,
CIA	Richardson, N.D., Schaefer, G.H., Eldridge, J.J., Spejcher, R., Holdsworth, A.,
CIA	Holdsworth, A., Richardson, N.D., Schaefer, G.H., Eldridge, J.J., Hill, G.M.,
CIA	Shepard, K., Gies, D.R., Schaefer, G.H., Anugu, N., Baron, F.R., Lanthermann, C.,
GAT	Gatewood, G.D.
HNK	Hinkley, S., Oppenheimer, B.R., Brenner, D., Zimmerman, N., Roberts, L.C., Jr.,
HNK	Parry, I.R., Soummer, R., Sivaramakrishnan, A., et al.
HNK	Hinkley, S., Monnier, J.D., Oppenheimer, B.R., Roberts, L.C., Ireland, M.,
HNK	Zimmerman, N., Brenner, D., Parry, I.R., et al.
HNK	Hinkley, S., Pueyo, L., Faherty, J.K., Oppenheimer, B.R., Mamajek, E.E.,
HNK	Kraus, A.L., Rice, E.L., Ireland, M.J., David, T., Hillenbrand, L.A., Vasisht, G.,
HNK	Cady, E. et al.
HNK	Hinkley, S., Kraus, A.L., Ireland, M.J., Cheetham, A., Carpenter, J.M.,
HNK	Tuthill, P., Lacour, S., Evans, T.M., & Hauboas, X.
MCY	McCarthy, D.W., Jr., Hancock, T., Freeman, J., McLeod, B., Lloyd-Hart, M.,
MCY	Colucci, D., Wizinowich, P., Clampin, M., et al.
NOI	Benson, J.A., Hutter, D.J., Elias, N.M., Bowers, P.F., Johnston, K.J.,
NOI	Hajian, A.R., Armstrong, J.T., Mozurkewich, D., et al.
NOI	Nordgren, T.E., Germain, M.E., Benson, J.A., Mozurkewich, D., Sudol, J.J., Elias,
NOI	II, N.M., Hajian, A.R., White, N.M., Hutter, D.J., Johnston, K.J., Gauss, F.S.,
NOI	Armstrong, J.T., Pauls, T.A. & Rickard, L.J.
NOI	Armstrong, J.T., Nordgren, T.E., Germain, M.E., Hajian, A.R., Hindsley, R.B.,
NOI	Hummel, C.A., Mozurkewich, D. & Thessin, R.N.
NOI	Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
NOI	Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.
NOI	Koubsky, P., Hummel, C.A., Harmanec, P., Tycner, C., van Leeuwen, F., Yang, S.,
NOI	Slechta, M., Bozic, H., Zavala, R.T., Ruzdjak, D., & Sudar, D.
NOI	Che, X., Monnier, J.D., Tycner, C., Kraus, S., Zavala, R.T., Baron, F., Pedretti,
NOI	E., ten Brummelaar, T., McAlister, H., Ridgway, S.T., Sturmann, J., Sturmann, L.,
NOI	& Turner, N.
NOI	Hutter, D.J., Zavala, R.T., Tycner, C., Benson, J.A., Hummel, C.A., Sanborn, J.,
NOI	Franz, O.G., & Johnston, K.J.
NOI	Schaefer, G.H., Hummel, C.A., Gies, D.R., Zavala, R.T., Monnier, J.D.,
NOI	Walter, F.M., Turner, N.H., Baron, F., ten Brummelaar, T., Che, X.,
NOI	Farrington, C.D., Kraus, S., Sturmann, J., & Sturmann, L.
NOI	Baines, E.K., Armstrong, J.T., Schmitt, H.R., Zavala, R.T., Benson, J.A., Hutter,
NOI	AJ 155, 30, 2018

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	dm_number	notes	coord_arcsec_2000
17349+1234	MCY 4		1999	2	64	0.8	2.10	5.00		+12 3252	N D	173456.00+123338.1
17349+1234	MCY 4		2009	10	238	0.7	2.10	5.00		+12 3252	N D	173456.00+123338.1
17349+1234	MCY 4		2010	11	236	0.6	2.10	5.00	A5III	+12 3252	N D	173456.00+123338.1
17349+1234	MCY 4		2014	13	250	0.6	2.10	5.00	A5III	+12 3252	NO	173456.00+123338.1
17349+1234	MCY 4		2015	15	246	0.8	2.10	5.00	A5III	+12 3252	NO	173456.00+123338.1
17349+1234	MCY 4		2016	16	235	0.5	2.10	5.00	A5III	+12 3252	NO	173456.06+123336.1
17349+1234	MCY 4		2018	17	238	0.7	2.10	5.00	A5III	+12 3252	NO	173456.06+123336.1
17349+1234	MCY 4		2021	27	260	0.3	2.10	5.00	A5III	+12 3252	NO	173456.06+123336.1
17349+1234	MCY 4		2022	28	253	0.5	2.10	5.00	A5III	+12 3252	NO	173456.06+123336.1

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No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

FoV: 30" 1' 5' 15' 30' 1° 2° 4° 5° 8° Limit: 2 3 4 5 10 15 20 25 30 50 100 Primaries only
Click on the map to see the double of your interest. Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(') Show Rasalhague 17349+1234 MCY 4 248 0.7 0 Show 17343+1210 UC 3371 286 45.6 26 Show 17366+1220 UC 3376 36 33.0 28 Show 17347+1304 HEI 549 24 0.7 31 Show 17374+1233 BU 1121 192 0.5 37 Show 17344+1310 STF2184 AB 65 22.8 38 Show 17344+1310 STF2184 AC 293 127.8 38 Show 17326+1204 UC 3365 74 32.7 45 Show 17325+1201 BPM 686 83 107.9 49 Show 17354+1322 A 1879 115 0.6 49 Show 17319+1305 GWP2721 269 62.3 55 Show 17368+1147 BPM 689 25 104.9 55 Show 17322+1156 ISO 4 141 0.2 55 Show 17323+1313 OL 88 285 2.8 56 Show 17386+1153 BRT1287 AB 122 4.1 68 Show 17386+1153 BRT1287 BC 164 3.7 68 Show 17366+1344 UC 3375 24 41.5 75 Show 17400+1253 ROE 96 66 7.2 78 Show 17325+1346 BPM 685 165 76.5 82 Show 17407+1237 BPM 693 106 8.4 85 Show 17317+1111 AG 354 52 2.5 96 Show 17307+1120 GWP2717 AB 150 2.9 97 Show 17307+1120 GWP2717 AC 19 19.8 97 Show 17342+1411 UC 3370 207 51.5 99 Show 17334+1053 GKM9377 Aa,Ab 48 0.4 104 Show 17394+1107 TDT 453 205 0.6 109 Show 17286+1333 NSN 60 116 8.2 111 Show 17286+1132 BPM 682 62 21.1 112 Show 17340+1042 LDS4754 310 13.2 113 Show 17373+1042 GKM9379 Ba,Bb 241 0.1 117 Show 17308+1052 LDS4747 353 24.7 119 Show 17430+1215 HU 1283 7 0.5 120 Show 17430+1213 BPM 694 190 109.8 120 Show 17278+1137 BRT1285 13 2.8 120 Show 17267+1232 HEI 548 76 2.9 121 Show 17368+1034 STT 333 154 0.2 123 Show 17318+1040 AG 355 333 22.4 124 Show 17339+1031 BRT1286 196 4.3 124 Show 17279+1123 STF2166 282 27.0 126 Show 17436+1257 HU 1284 71 1.0 130 Show 17339+1446 A 1877 62 0.6 134 Show 17269+1340 UC 3342 36 60.8 135 Show 17321+1024 CLL 11 209 56.7 137 Show 17337+1451 WSI 3 AB 32 0.5 139 Show 17337+1451 GII 249 Aa,Ab 151 0.1 139 Show 17263+1137 KPP1265 324 9.7 139 Show 17311+1027 STF2176 AB 17 16.8 139 Show 17311+1027 GUI 19 AC 71 89.8 139 Show 17443+1155 BRT1943 183 2.6 143 Show 17403+1030 BRT1288 155 3.9 147 Show 17294+1032 UC 3352 90 37.4 147

	A
B	pa=248.2° sep=0.69"

Common name	Rasalhague		Coord arcsec 2000	173456.06+123336.1		Mag	2.1		Spectral class	A5III (white)
PmRA	110.00		PmDE	-223.0		SAO	102932		HIP	86032
Tycho2	1000-02508-1		HD	159561		HR	6556		GC	23837
BD	BD+12 3252		Bayer	Alpha Ophiuchi		Bayer name	alp Oph		Flamsteed	55 Ophiuchi
Flamsteed name	55 Oph		FK5	656

SAO	102932		DelFlag			RA1950			PmRA1950	0.008
DE1950			PmDE1950	-0.227		Vmag	2.1		SpType	A5
Double code			Source	74		CatNum	656		DM	BD+12 3252
DMcomp			BDsup			HD	159561		M HD	0
GC	23837		RA1950rad	4.59288454		DE1950rad	0.21982384		PmRA2000	0.0082
PmDE2000	-0.226

Catalog	H		HIP	86032		Proxy			RAhms	17 34 56.00
DEdms	+12 33 38.1		Vmag	2.08		VarFlag			R Vmag	G
RAdeg	263.733		DEdeg	12.5606		AstroRef			Plx	69.84
CCDM	110.08 -		N CCDM	I		Nsys	1		Ncomp	1
MultFlag	G		Source			Qual			M HIP
Theta			Rho			HD			BD	BD+12 3252
CD			CP			Dm number	+12 3252		VIred	0.17
SpType	A5III		R SpType			Coord arcsec 2000	173456.00+123338.1

HIP	86032		Sn	1		So	1		Nc	1
RArad	4.6030153679		DErad	0.2192234059		Plx	67.13		PmRA	108.07
PmDE	-221.57		E RArad	0.87		E DErad	0.71		E Plx	1.06
E pmRA	0.87		E pmDE	0.8		Hpmag			E Hpmag	0.0005
SHp	0.003		VA	0		BV	0.155		E BV	0.003
VI	0.17

Ccdm	17349+1234		RComp			Comp	A		Note1
Note2	@		Discov num			DRAs	2.08		DDEs	-23.9
R dRAs	5		Year			Theta			Rho
Obs	1		Vmag	2.1		Sp	A5		PmNote
PmRA	120		PmDE	-226		Dm number	+12 3252		Cat1	BD
Name2	102932		Cat2	SAO		HD	159561		M HD
ADS BDS			M ADS BDS			N IDS	*		IDS	17303N1238
HIC	86032

Coord arcsec 2000

173456.02+123335.8

Mag

5

Delta magnitude

2.9

Coordinate calculated

yes