WDS 16294-2626 GNT 1 (Antares)

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

WDS 16294-2626 GNT 1 (Antares) : NOTES

discov_num	notes	refcode
GNT 1	alp Sco = 21 Sco = Antares. The primary is variable: irregular or
	semiregular with a trace of a 5.8 yr period.	B__1953a
	Mk III Limb-darkened diameter 39.759 +/- 0.399 mas.	MkT2003
	Duplicity of Antares discovered by a lunar occultation observed at
	Vienna by Johann Tobias Burg 13 April 1819.	Dnh2015
	Composite spectrum; M1.5Iab-Ib+B4Ve.
	Parabolic orbit by Hopmann (1957).	Hop1957b
	sigma = areal constant in the true orbit = 0.04448 arcsec^2/yr
	q = periastron distance in the true orbit = 2".2055
	See Baize & Petit (1989) catalog of doubles with variable component.	Baz1989d

REFERENCES

refcode	metd	author	reference
B__1953a	Ma -	van den Bos, W.H.	1953CiUO..113..185V
B__1953a		Union Obs. Johannesburg Circ. 113, 185, 1953
Baz1989d	-	Baize, P. & Petit, M.	1989A&AS...77..497B
Baz1989d		A&AS 77, 497, 1989
Dnh2015	O -	Dunham, D.W., George, A., Loader, B., Herald, D. & Richichi, A.	.
Dnh2015		IAU GA Division G poster 1.11, 2015
Hop1957b	orb -	Hopmann, J.	1957MiWie...9..135H
Hop1957b		Mitt. Sternw. Wien 9, 135-142, 1957
Izm2019	orb u	Izmailov, I.S.	2019AstL...45...30I
Izm2019		Ast. Lett. 45, 30, 2019
Izm2019		(Orbital elements from weighted solutions used when available (Table 2),
Izm2019		unweighted elements (Table 1) used for remaining 29 systems.)
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

idgroup	discov	author
1	B	van den Bos, W.H.
545	IZM	Izmailov, I.S., Khovricheva, M.L., Khovrichev, M. Yu., Kiyaeva, O.V., Khrutskaya,
545	IZM	E.V., Romanenko, L.G., Grosheva, E.A., Maslennikov, K.L. & Kalinichenko, O.A.
550	IZM	(Orbital elements from weighted solutions used when available (Table 2),
550	IZM	unweighted elements (Table 1) used for remaining 29 systems.)
553	MKT	Shao, M., Colavita, M.M., Hines, B.E., Staelin, D.H., Hutter, D.J., Johnston, K.J.,
553	MKT	Mozurkewich, D., Simon, R.S., Hershey, J.L., Hughes, J.A. & Kaplan, G.H.
554	MKT	Hutter, D.J., Johnston, K.J., Mozurkewich, D., Simon, R.S., Colavita, M.M., Pan,
554	MKT	X.P., Shao, M., Hines, B.E., Staelin, D.H., Hershey, J.L., Hughes, J.A. & Kaplan,
554	MKT	G.H.
557	MKT	Mozurkewich, D., Johnston, K.J., Simon, R.S., Bowers, P.F., Gaume, R., Hutter,
557	MKT	D.J., Colavita, M.M., Shao, M. & Pan, X.P.
558	MKT	Pan, X.P., Shao, M., Colavita, M.M., Armstrong, J.T., Mozurkewich, D.,
558	MKT	Vivekanand, M., Denison, C.S., Simon, R.S., et al.
559	MKT	Armstrong, J.T., Mozurkewich, D., Vivekanand, M., Simon, R.S., Denison, C.S.,
559	MKT	Johnston, K.J., Pan, X.-P., Shao, M., et al.
560	MKT	Armstrong, J.T., Hummel, C.A., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
560	MKT	Vivekanand, M., Simon, R.S., Denison, C.S., et al.
569	MKT	Hummel, C.A., Armstrong, J.T., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
569	MKT	Simon, R.S., & Johnston, K.J.
570	MKT	Hummel, C.A., Armstrong, J.T., Quirrenbach, A., Buscher, D.F., Mozurkewich, D.,
570	MKT	Elias, N.M., & Wilson, R.E.
583	MKT	Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A.,
583	MKT	Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
586	MKT	Armstrong, J.T., Mozurkewich, D., Hajian, A.R., Johnston, K.J., Thessin, R.N.,
586	MKT	Peterson, D.M., Hummel, C.A., & Gilbreath, G.C.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
16294-2626	GNT 1		1997	140	274	2.5	0.96	5.40	M1	NOD	162924.47-262555.0
16294-2626	GNT 1		2014	142	277	2.6	0.96	5.40	M1	NOD	162924.47-262555.0
16294-2626	GNT 1		2016	145	276	3.2	0.96	5.40	M1	NO	162924.47-262555.0
16294-2626	GNT 1		2019	146	275	2.8	0.96	5.40	M1	NO	162924.47-262555.0

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