17122-4314 GAT 21 (Eta Sco)

17^h 12^m 09.20^s -43° 14' 21.1" P.A. 129.00 sep 591.8 mag 3.37,11.24 dist. 22.53 pc (73.49 l.y.)

Coord 2000	17122-4314	Discov num	GAT 21	Comp		Coord arcsec 2000	17 12 09.20 -43 14 21.1
Date first	1998	Date last	2016	Obs	5
Pa first	129	Pa last	128.6	P.A. Now (θ)	128.6°
Sep first	592.6	Sep last	591.833	Sep. Now (ρ)	591.833"
Mag pri	3.37	Mag sec	11.24	delta mag (ΔM)	7.87	Spectral class
Pri motion ra	+020	Sec motion ra	+024
Pri motion dec	-285	Sec motion dec	-288
Notes	T (Parallax indicates physical)

rPM=0.017 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	Eta Sco	Spectr	F3p	Constellation	Scorpius	SAO	227707
HIP	84143	Tycho2	7882-00569-1	HD	155203	HR	6380
GC	23180	GL	Gl 657	CD	CD-4311485	CP	CP-43 7912
Bayer	Eta Scorpii	Bayer name	Eta Sco	FK5	638	Distance	22.53
Distance ly	73.49	Bayer greek	η Sco

WDS 17122-4314 GAT 21 (Eta Sco) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Gat1973	orb -	Gatewood, G.D.	1973AJ.....78..777G
Gat1973		AJ 78, 777, 1973
Gat1975	orb -	Gatewood, G.D. & Behall, A.L.	1975AJ.....80.1065G
Gat1975		AJ 80, 1065, 1975
Gat1976	Po -	Russell, J., Gatewood, G., & Stein, J.W.	1976AJ.....81..545R
Gat1976		AJ 81, 545, 1976
Gat1978	-	Gatewood, G.D. & Gatewood, C.V.	1978ApJ...225..191G
Gat1978		ApJ 225, 191, 1978
Gat1995	-	Gatewood, G.D., de Jonge, J.K., & Heintz, W.D	1995AJ....109..434G
Gat1995		AJ 109, 434, 1995
Gat2001a	orb -	Gatewood, G., Han, I., & Black, D.	2001ApJ...548L..61G
Gat2001a		ApJ 548, L61, 2001
Gat2001b	orb -	Gatewood, G.D., Han, I., de Jonge, J.K., Reiland, C.T., & Pourbaix, D.	2001ApJ...549.1145G
Gat2001b		ApJ 549, 1145, 2001
Gat2003	orb -	Gatewood, G.D., Coban, L., & Han, I.	2003AJ....125.1530G
Gat2003		AJ 125, 1530, 2003
Gat2005	orb -	Gatewood, G.D.	2005AJ....130..809G
Gat2005		AJ 130, 809, 2005
Gat2009	-	Gatewood, G.D. & Coban, L.	2009AJ....137..402G
Gat2009		AJ 137, 402, 2009
Gat2012	C j	Gatewood, G. & Gatewood, C.	2012JDSO....8..335G
Gat2012		JDSO 8, 335, 2012
Gat2013	C -	Gatewood, G.	...................
Gat2013		private communication
Gat2013b	orb -	Gatewood, G. & Mason, B.D.	2013IAUDS.181....1H
Gat2013b		Inf. Circ. 181, 1, 2013
Gat2016	C j	Gatewood, G. & Gatewood, C.	2016JDSO...12..580G
Gat2016		JDSO 12, 580, 2016
Gat2019	Hg j	Gatewood, G. & Gatewood, C.	2019JDSO...15..403G
Gat2019		JDSO 15, 403, 2019

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17122-4314	GAT 21		2015	1	129	591.8	3.10	10.40		T	171209.20-431421.1
17122-4314	GAT 21		2016	5	129	591.8	3.37	11.24		T	171209.20-431421.1

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

WDS 17122-4314 GAT 21 (Eta Sco) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17122-4314 GAT 21 (Eta Sco) : MEASURES

No records found.

WDS 17122-4314 (Eta Sco) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 17122-4314 (Eta Sco) : ALADIN DSS IMAGE @ 17^h 12^m 09.20^s -43° 14' 21.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17122-4314 GAT 21 (Eta Sco) : NEIGHBORHOODS

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		17122-4314	GAT 21		129	591.8
Show		17118-4314	I 587		143	5.5	4
Show		17123-4330	SKF1413		198	6.9	16
Show		17106-4331	B 1849		223	2.3	25
Show		17145-4329	DON 829		348	1.8	30
Show		17096-4302	B 1848		98	0.2	31
Show		17087-4242	HJ 4918		291	13.2	51
Show		17076-4255	CPO 511		117	3.1	53
Show		17164-4240	FGS 28		-1	-1.0	59
Show		17112-4416	CPO 514	AB	133	5.7	63
Show		17112-4416	SIN 101	AC		12.5	63
Show		17073-4352	TDT 221		312	0.8	65
Show		17067-4351	TDT 216		9	1.3	70
Show		17067-4350	B 1844		224	0.9	70
Show		17163-4220	I 408		178	1.7	71
Show		17184-4256	TDS 861		354	1.7	71
Show		17118-4200	CPO 72	AB	30	11.5	75
Show		17188-4254	SNA 68		20	6.4	76
Show		17107-4433	I 1312		125	13.0	81
Show		17046-4300	BRT 943		176	3.3	84
Show		17162-4426	SKF1415		26	4.9	85
Show		17074-4427	COO 208		137	5.0	89
Show		17079-4157	I 406		95	2.0	91
Show		17149-4441	HDS2438		187	10.0	92
Show		17135-4447	DON 828		84	0.5	94
Show		17045-4402	DON 822		58	1.9	96
Show		17103-4450	CPO 512		165	6.0	98
Show		17204-4352	TDT 313		96	1.3	98
Show		17084-4443	CPO 71		348	9.7	98
Show		17043-4403	DON 821		26	1.8	99
Show		17194-4413	HDO 269		233	0.1	99
Show		17030-4300	B 1842		338	0.3	101
Show		17099-4453	BRT 949		33	5.0	102
Show		17208-4240	I 410		279	2.9	102
Show		17081-4143	NSN 381		327	4.6	102
Show		17067-4443	TDT 217		97	1.1	107
Show		17081-4137	I 407		239	0.1	108
Show		17173-4140	CPO 73		313	18.6	110
Show		17187-4446	BRT 955	AB	290	3.1	116
Show		17187-4446	BRT 955	AC	149	5.6	116
Show		17157-4504	BRT 953		304	6.5	116
Show		17193-4441	CPO 518		253	3.3	117
Show		17195-4443	TDT 305		320	0.5	119
Show		17028-4215	I 583		119	4.0	120
Show		17210-4206	HDS2450		31	0.7	120
Show		17101-4112	TDT 243		269	0.4	125
Show		17207-4443	CPO 519		223	5.7	128
Show		17186-4128	KPP 395		181	4.9	128
Show		17016-4221	TDT 183		85	0.6	129
Show		17215-4154	BRT 960		231	2.4	131
Show		17192-4129	RST1950		280	1.4	131

WDS 17122-4314 : COMPONENTS

	A
B	pa=137.6° sep=499.68"

17122-4314 A

Componente originario normalizzato	AB	Name	Eta Sco	Coord arcsec 2000	171209.20-431421.1	Mag	3.37
Spectral class	F3p (yellow-white)	PmRA	20.00	PmDE	-285.0	SAO	227707
HIP	84143	Tycho2	7882-00569-1	HD	155203	HR	6380
GC	23180	CD	CD-4311485	CP	CP-43 7912	Bayer	Eta
Bayer name	Eta	FK5	638

Tycho2

Tycho2	7882-00569-1	Pflag		RAmdeg	258.03830303	DEmdeg	-43.23919120
PmRA	21.2	PmDE	-288.5	E RAmdeg	3	E DEmdeg	3
E pmRA	0.7	E pmDE	0.7	EpRAm	1991.43	EpDEm	1990.95
Num	16	Q RAmdeg	0.7	Q DEmdeg	1.3	Q pmRA	0.7
Q pmDE	1.3	BTmag	3.807	E BTmag	0.014	VTmag	3.359
E VTmag	0.009	Prox	999	TYC	T	HIP	84143
CCDM		RAdeg	258.03823639	DEdeg	-43.23848889	EpRA 1990	1.73
EpDE 1990	1.24	E RAdeg	3.2	E DEdeg	3.4	Posflg
Corr	0.0

SAO

SAO	227707	DelFlag		RA1950		PmRA1950	0.0021
DE1950		PmDE1950	-0.285	Vmag	3.4	SpType	F2
Double code		Source	74	CatNum	638	DM	CD-4311485
DMcomp		BDsup		HD	155203	M HD	0
GC	23180	RA1950rad	4.4879698	DE1950rad	-0.75355124	PmRA2000	0.0023
PmDE2000	-0.285

Hipparcos

Catalog	H	HIP	84143	Proxy		RAhms	17 12 09.18
DEdms	-43 14 18.6	Vmag	3.32	VarFlag		R Vmag	G
RAdeg	258.038	DEdeg	-43.2385	AstroRef		Plx	45.56
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	155203	BD
CD	CD-4311485	CP	CP-43 7912	Dm number	-4311485	VIred	0.47
SpType	F3p	R SpType		Coord arcsec 2000	171209.18-431418.6

Hipparcos 2

HIP	84143	Sn	5	So	0	Nc	1
RArad	4.503616772	DErad	-0.7546540224	Plx	44.39	PmRA	24.47
PmDE	-288.55	E RArad	0.14	E DErad	0.08	E Plx	0.16
E pmRA	0.15	E pmDE	0.08	Hpmag	3.4149	E Hpmag	0.0004
SHp	0.004	VA	0	BV	0.441	E BV	0.003
VI	0.47

17122-4314 B

Componente originario normalizzato	AB		Coord arcsec 2000	171240.04-432030.3		Mag	11.24		PmRA	24.00
PmDE	-288.0		Calc delta mag	7.87		Calc coord	yes