18143-4309 SHY 740 (HD 166793)

18^h 14^m 19.50^s -43° 09' 15.4" P.A. 345.00 sep 999.9 mag 7.81,8.08 Sp F2V+F2/3 dist. 99.11 pc (323.3 l.y.)

Coord 2000	18143-4309	Discov num	SHY 740	Comp		Coord arcsec 2000	18 14 19.50 -43 09 15.4
Date first	1991	Date last	2016	Obs	5
Pa first	345	Pa last	345	P.A. Now (θ)	345°
Sep first	999.9	Sep last	3231	Sep. Now (ρ)	3231"
Mag pri	7.81	Mag sec	8.08	delta mag (ΔM)	0.27	Spectral class	F2V+F2/3 (yellow-white/yellow-white)
Pri motion ra	-002	Sec motion ra	-005
Pri motion dec	-052	Sec motion dec	-049
Notes	N V (See Notes, Proper motion indicates physical)

rPM=0.082 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 166793	Constellation	Corona Austrina	SAO	228832	HIP	89373
Tycho2	7912-00653-1	Gaia DR2	6721441784663730816	HD	166793	GC	24853
CD	CD-4312374	CP	CP-43 8507	Distance	99.11	Distance ly	323.3

WDS 18143-4309 SHY 740 (HD 166793) : NOTES

discov_num	notes	refcode
SHY 740	HIP 89373 + HIP 89274.

REFERENCES

refcode	metd	author	reference
Shy2011	-	Shaya, E.J. & Olling, R.	2011ApJS..192....2S
Shy2011		ApJS 192, 2, 2011
Shy2011		(Statistical analysis of probability that wide Hipparcos pairs are physical. Pairs
Shy2011		added to WDS only if probability 90% or greater.)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18143-4309	SHY 740		1999	3	345	999.9	7.81	8.08	F2V F2/3	NVD	181419.50-430915.4
18143-4309	SHY 740		2016	5	345	999.9	7.81	8.08	F2V+F2/3	NV	181419.50-430915.4

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

WDS 18143-4309 SHY 740 (HD 166793) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18143-4309 SHY 740 (HD 166793) : MEASURES

No records found.

WDS 18143-4309 (HD 166793) : VIRTUAL EYEPIECE

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WDS 18143-4309 (HD 166793) : ALADIN DSS IMAGE @ 18^h 14^m 19.50^s -43° 09' 15.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18143-4309 SHY 740 (HD 166793) : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		18143-4309	SHY 740		345	999.9
Show		18161-4316	I 1357		36	6.5	21
Show		18162-4304	LDS 631		274	16.1	22
Show		18171-4336	HDS2583		10	0.1	40
Show		18135-4230	BRT1033		91	2.8	41
Show		18128-4233	BRT1030		7	4.6	41
Show		18118-4238	I 1353		73	1.2	43
Show		18175-4245	CPO 579		256	3.0	43
Show		18161-4351	DAM 50		49	3.8	47
Show		18161-4353	CPO9261		25	5.2	48
Show		18133-4220	BRT1032		93	5.6	52
Show		18133-4410	BRT1031		274	6.9	62
Show		18096-4227	BRT1026		4	5.7	68
Show		18096-4400	KPP4087		355	1.1	73
Show		18105-4411	BRT1027		141	3.8	75
Show		18200-4354	HDS2591		27	0.3	77
Show		18112-4418	HDS2566		53	18.1	77
Show		18084-4225	CPO 573		25	4.9	80
Show		18195-4213	BRT1042		264	7.0	81
Show		18136-4430	I 1355		221	0.4	82
Show		18211-4344	BRT1045		74	4.3	82
Show		18135-4147	BRT1034		171	3.0	84
Show		18068-4325	HJ 5014			1.8	84
Show		18205-4219	DON 889		260	0.8	85
Show		18139-4140	BRT1035		89	5.2	89
Show		18105-4150	BRT1028		299	4.0	90
Show		18174-4434	SKF1021		11	46.2	91
Show		18176-4433	SKF1146		152	40.8	92
Show		18115-4435	DON 884		188	6.5	92
Show		18210-4406	DON 890		235	0.9	92
Show		18210-4407	TDT 813		145	2.1	93
Show		18228-4304	KPP3112		334	2.4	94
Show		18224-4232	TDT 820		237	2.1	96
Show		18086-4423	BRT1023		225	7.4	97
Show		18074-4409	B 2432		245	12.5	97
Show		18195-4428	CPO 580		51	3.3	97
Show		18213-4416	BRT1046		311	5.1	101
Show		18233-4247	COO 224		135	3.0	102
Show		18055-4238	CPO 572	AB	289	5.1	103
Show		18139-4126	BRT1036		194	6.1	103
Show		18060-4223	CPO9256		65	4.5	104
Show		18218-4413	I 1363		297	0.8	104
Show		18183-4444	BRT1041		175	3.5	104
Show		18081-4428	BRT1021		138	3.1	104
Show		18044-4306	DON 880		178	3.3	109
Show		18116-4125	I 1352		72	2.1	109
Show		18076-4431	BRT1019		3	4.2	110
Show		18155-4120	KPP2266		341	19.0	110
Show		18094-4445	BRT1024		233	5.7	110
Show		18117-4500	CPO 574	AC	189	3.9	115
Show		18117-4500	CPO 574	BC	57	7.5	115

WDS 18143-4309 : COMPONENTS

	A
B	pa=348.9° sep=3180.80"

18143-4309 A

Componente originario normalizzato	AB	Name	HD 166793	Coord arcsec 2000	181419.50-430915.4	Mag	7.81
Spectral class	F2V (yellow-white)	PmRA	-2.00	PmDE	-52.0	SAO	228832
HIP	89373	Tycho2	7912-00653-1	HD	166793	GC	24853
CD	CD-4312374	CP	CP-43 8507

Tycho2

Tycho2	7912-00653-1	Pflag		RAmdeg	273.58128661	DEmdeg	-43.15428255
PmRA	0.1	PmDE	-53.5	E RAmdeg	5	E DEmdeg	6
E pmRA	1.1	E pmDE	1.1	EpRAm	1991.32	EpDEm	1991.06
Num	10	Q RAmdeg	1.0	Q DEmdeg	0.7	Q pmRA	0.9
Q pmDE	0.6	BTmag	8.245	E BTmag	0.016	VTmag	7.806
E VTmag	0.011	Prox	999	TYC	T	HIP	89373
CCDM		RAdeg	273.58128639	DEdeg	-43.15416111	EpRA 1990	1.85
EpDE 1990	1.82	E RAdeg	4.7	E DEdeg	5.7	Posflg
Corr	0.3

SAO

SAO	228832	DelFlag		RA1950		PmRA1950	0.0012
DE1950		PmDE1950	-0.061	Vmag	7.8	SpType	F2
Double code		Source	70	CatNum	24853	DM	CD-4312374
DMcomp		BDsup		HD	166793	M HD	0
GC	24853	RA1950rad	4.75916195	DE1950rad	-0.75343838	PmRA2000	0.0012
PmDE2000	-0.062

Hipparcos

Catalog	H	HIP	89373	Proxy		RAhms	18 14 19.51
DEdms	-43 09 14.9	Vmag	7.79	VarFlag		R Vmag	G
RAdeg	273.581	DEdeg	-43.1542	AstroRef		Plx	10.2
CCDM		N CCDM		Nsys		Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	166793	BD
CD	CD-4312374	CP	CP-43 8507	Dm number	-4312374	VIred	0.48
SpType	F2V	R SpType		Coord arcsec 2000	181419.51-430914.9

Hipparcos 2

HIP	89373	Sn	5	So	0	Nc	1
RArad	4.7748942773	DErad	-0.7531820442	Plx	10.09	PmRA	-2.65
PmDE	-53.24	E RArad	0.7	E DErad	0.44	E Plx	0.8
E pmRA	1	E pmDE	0.62	Hpmag	7.8743	E Hpmag	0.0013
SHp	0.011	VA	0	BV	0.415	E BV	0.015
VI	0.48

18143-4309 B

Componente originario normalizzato	AB		Coord arcsec 2000	181323.75-421714.5		Mag	8.08		Spectral class	F2/3 (yellow-white)
PmRA	-5.00		PmDE	-49.0		Calc delta mag	0.27		Calc coord	yes