WDS 17146+1423 AGC 16 AC

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

WDS 17146+1423 AGC 16 AC : NOTES

discov_num	notes	refcode
STF2140	alp Her = Rasalgethi. Star A is an irregular variable, and B is an
	SB1, P = 51.58 d. Spectrum composite; G5III+F2V. Radial velocity
	measures by Smith (1988 private comm.) for alp Her A since 1984
	have shown an increase in velocity by about 11 km/sec during a
	three-year interval, then an apparent turnover in velocity during
	the fourth year. This suggests a component with a period of the
	order of a decade; it now appears that this system may have at least
	5 physical components. Measure of 1927.43 made by triangulation of
	multiple measures.
	The 1779.66 measure by Herschel was corrected.	H__1804
	Mk III Limb-darkened diameter 36.026 +/- 0.439 mas.	MkT2003
CHR 139	Aa,Ab: A premature orbit has been computed.
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d
	Radial velocity measures by Smith (1988 private communication) for alp
	Her A since 1984 have shown an increase in velocity by about 11 km/sec
	during a three-year interval, then an apparent turnover in velocity
	during the fourth year. This suggests a component with a period of
	the order of a decade; it now appears that this system may have at
	least five physical components.
	Aa,Ab: Resolved 3 times 1986-1991 at separations 0.16-0.19"
	separations, but unresolved by Balega at the 6-m in 1997 and 10 times	Bag1999a
	1985-1997 at 4m and 2.5m telescopes	Hrt2009
STF2140	AB: H 2 2.	MEv2010

REFERENCES

refcode	metd	author	reference
Bag1999a	S j	Balega, I.I., Balega, Y.Y., Maksimov, A.F., Pluzhnik, E.A., Shkhagosheva, Z.U., &	1999A&AS..140..287B
Bag1999a		Vasyuk, V.A.
Bag1999a		A&AS 140, 287, 1999
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
H__1804	Mb -	Herschel, W.	1804RSPT...94..353H
H__1804		Phil. Trans. R. Soc. 94, 353, 1804
Hrt2009	Su j	Hartkopf, W.I. & Mason, B.D.	2009AJ....138..813H
Hrt2009	+orb	AJ 138, 813, 2009
MEv2010	-	MacEvoy, B.	...................
MEv2010		private communication, 2010 (see http://www.handprint.com/ASTRO/index.html)
MkT2003	Km -	Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A.,	2003AJ....126.2502M
MkT2003	+not	Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MkT2003		AJ 126, 2502, 2003

DISCOVERER

discov	author
AGC	Clark, A.G.
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.
HRT	Hartkopf, W.I., McAlister, H.A., Mason, B.D., ten Brummelaar, T.A., Roberts, J.C.,
HRT	Jr., Turner, N.H., & Wilson, J.W.
HRT	Hartkopf, W.I., W.I., Mason, B.D., Gies, D.R., ten Brummelaar, T.,
HRT	McAlister, H.A., Moffat, A.F.J., Shara, M.M., & Wallace, D.J.
HRT	Mason, B.D., Martin, C., Hartkopf, W.I., Barry, D.J., Germain, M.E.,
HRT	Douglass, G.G., Worley, C.E., ten Brummelaar, T.A., et al.
HRT	Hartkopf, W.I., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., Turner, N.H.,
HRT	ten Brummelaar, T.A., Prieto, C.M., Ling, J.F., & Franz, O.G.
HRT	Mason, B.D., Henry, T.J., Soderblom. D.R., Hartkopf, W.I., Holdenreid, E.R.,
HRT	Rafferty, T.J., & Urban, S.E.
MKT	Shao, M., Colavita, M.M., Hines, B.E., Staelin, D.H., Hutter, D.J., Johnston, K.J.,
MKT	Mozurkewich, D., Simon, R.S., Hershey, J.L., Hughes, J.A. & Kaplan, G.H.
MKT	Hutter, D.J., Johnston, K.J., Mozurkewich, D., Simon, R.S., Colavita, M.M., Pan,
MKT	X.P., Shao, M., Hines, B.E., Staelin, D.H., Hershey, J.L., Hughes, J.A. & Kaplan,
MKT	G.H.
MKT	Mozurkewich, D., Johnston, K.J., Simon, R.S., Bowers, P.F., Gaume, R., Hutter,
MKT	D.J., Colavita, M.M., Shao, M. & Pan, X.P.
MKT	Pan, X.P., Shao, M., Colavita, M.M., Armstrong, J.T., Mozurkewich, D.,
MKT	Vivekanand, M., Denison, C.S., Simon, R.S., et al.
MKT	Armstrong, J.T., Mozurkewich, D., Vivekanand, M., Simon, R.S., Denison, C.S.,
MKT	Johnston, K.J., Pan, X.-P., Shao, M., et al.
MKT	Armstrong, J.T., Hummel, C.A., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
MKT	Vivekanand, M., Simon, R.S., Denison, C.S., et al.
MKT	Hummel, C.A., Armstrong, J.T., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
MKT	Simon, R.S., & Johnston, K.J.
MKT	Hummel, C.A., Armstrong, J.T., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
MKT	Elias, N.M., & Wilson, R.E.
MKT	Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A.,
MKT	Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MKT	Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
MKT	Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.

WDS HISTORIC DATA

coord_2000

discov_num

comp

epoch

obs

sep

mag_pri

mag_sec

spectr

dm_number

notes

coord_arcsec_2000

17146+1423

AGC 16

1995

297

19.9

3.48

15.50

M5Ib-II

+14 3207

171438.86+142324.9