17246-6434 HDS 2457 (HD 156887)

17^h 24^m 36.37^s -64° 34' 11.5" P.A. 16.00 sep 0.2 mag 9.23,10.09 Sp F7V dist. 117.23 pc (382.4 l.y.)

Coord 2000	17246-6434	Discov num	HDS2457	Comp		Coord arcsec 2000	17 24 36.37 -64 34 11.5
Date first	1991	Date last	2021	Obs	5
Pa first	323	Pa last	16.4	P.A. Now (θ)	16.4°
Sep first	0.2	Sep last	0.172	Sep. Now (ρ)	0.172"
Mag pri	9.23	Mag sec	10.09	delta mag (ΔM)	0.86	Spectral class	F7V (yellow-white)
Pri motion ra	-010	Sec motion ra
Pri motion dec	-082	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 156887	Constellation	Ara	HIP	85193	Tycho2	9060-03410-1
Gaia DR2	5814029166257860736	HD	156887	CP	CP-64 3627	Distance	117.23
Distance ly	382.4

WDS 17246-6434 HDS 2457 (HD 156887) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
HDS		Hipparcos Double Star (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
17246-6434	HDS2457		1991	1	323	0.2	9.23	10.09	F7V		172436.37-643411.5
17246-6434	HDS2457		2017	2	29	0.1	9.23	10.09	F7V		172436.37-643411.5
17246-6434	HDS2457		2018	3	26	0.2	9.23	10.09	F7V		172436.37-643411.5
17246-6434	HDS2457		2019	4	22	0.2	9.23	10.09	F7V		172436.37-643411.5
17246-6434	HDS2457		2021	5	16	0.2	9.23	10.09	F7V		172436.37-643411.5

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

WDS 17246-6434 HDS 2457 (HD 156887) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17246-6434 HDS 2457 (HD 156887) : MEASURES

No records found.

WDS 17246-6434 (HD 156887) : VIRTUAL EYEPIECE

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WDS 17246-6434 (HD 156887) : ALADIN DSS IMAGE @ 17^h 24^m 36.37^s -64° 34' 11.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17246-6434 HDS 2457 (HD 156887) : 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		17246-6434	HDS2457		16	0.2
Show		17267-6431	FIN 256		119	0.6	14
Show		17227-6502	TDS 863		9	0.9	31
Show		17224-6405	TDT 324		130	1.3	33
Show		17193-6435	RST5427		265	2.4	35
Show		17191-6441	KPP 719		292	6.3	36
Show		17174-6444	FIN 253		337	5.8	48
Show		17243-6523	UC 3336		113	32.8	50
Show		17324-6456	TDS 869		123	1.2	55
Show		17264-6338	RST 924		180	3.8	58
Show		17250-6334	UC 3338		167	44.3	61
Show		17342-6439	TDT 419		339	0.7	62
Show		17160-6356	TDS 859		44	1.4	68
Show		17301-6534	UC 3356		316	31.1	70
Show		17138-6421	TDT 273		34	0.6	72
Show		17341-6357	LDS 601		206	20.2	73
Show		17297-6329	KPP4041		202	41.9	73
Show		17359-6427	SWR 226		83	25.8	74
Show		17143-6402	KPP2407		35	20.8	75
Show		17124-6500	HDS2431		25	16.0	82
Show		17278-6314	UC 3347		281	48.9	84
Show		17315-6546	UC 3362		330	28.6	84
Show		17310-6547	TDS 868		106	1.8	84
Show		17156-6334	TDT 293		288	1.2	85
Show		17163-6545	RST 908		324	1.4	88
Show		17333-6547	TDT 407		178	1.7	91
Show		17206-6604	WFC 191		168	6.8	94
Show		17288-6609	HJ 4943		238	4.0	99
Show		17362-6331	LDS 604		211	105.9	100
Show		17213-6255	FGS 29		284	0.1	102
Show		17087-6454	TDT 230		78	9.9	104
Show		17406-6420	KPP2997		10	33.8	105
Show		17359-6553	I 376		215	2.2	107
Show		17193-6254	WIS 316		185	83.9	107
Show		17287-6250	TOI 907		52	3.7	108
Show		17123-6321	TDT 263		209	1.3	110
Show		17216-6622	LDS 591		226	160.9	110
Show		17085-6514	RST 894		204	1.1	111
Show		17413-6502	UC 3384		48	17.6	111
Show		17097-6335	TDT 239		79	0.7	115
Show		17274-6628	TDT 364		42	2.4	116
Show		17169-6250	HJ 4925		307	23.4	117
Show		17278-6238	JAW 43		302	21.3	119
Show		17288-6632	TDT 374		145	0.6	121
Show		17357-6257	HJ 4956	AB	108	5.1	122
Show		17357-6257	BAU 50	AC	164	33.3	122
Show		17357-6257	BAU 50	AD	191	34.4	122
Show		17434-6514	TDT 478		43	0.4	126
Show		17404-6553	MLO 76	AB	57	5.1	127
Show		17404-6553	BAU 51	AC	138	39.0	127
Show		17404-6553	BAU 51	AD	137	57.2	127

WDS 17246-6434 : COMPONENTS

	A
B	pa=7.2° sep=0.17"

17246-6434 A

Componente originario normalizzato	AB	Name	HD 156887	Coord arcsec 2000	172436.37-643411.5	Mag	9.23
Spectral class	F7V (yellow-white)	PmRA	-10.00	PmDE	-82.0	HIP	85193
Tycho2	9060-03410-1	HD	156887	CP	CP-64 3627

Tycho2

Tycho2	9060-03410-1	Pflag		RAmdeg	261.15148068	DEmdeg	-64.57008084
PmRA	-11.3	PmDE	-85.5	E RAmdeg	8	E DEmdeg	8
E pmRA	1.3	E pmDE	1.3	EpRAm	1990.38	EpDEm	1990.39
Num	12	Q RAmdeg	0.9	Q DEmdeg	0.5	Q pmRA	0.8
Q pmDE	0.5	BTmag	9.301	E BTmag	0.019	VTmag	8.758
E VTmag	0.014	Prox	691	TYC	T	HIP	85193
CCDM	AB	RAdeg	261.15154222	DEdeg	-64.56988194	EpRA 1990	1.72
EpDE 1990	1.63	E RAdeg	8.1	E DEdeg	8.1	Posflg	P
Corr	0.0

Hipparcos

Catalog	H	HIP	85193	Proxy	H	RAhms	17 24 36.37
DEdms	-64 34 11.5	Vmag	8.72	VarFlag		R Vmag	H
RAdeg	261.152	DEdeg	-64.5699	AstroRef	*	Plx	7.33
CCDM	17246-6434	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source	S	Qual	A	M HIP	AB
Theta	323	Rho	0.167	HD	156887	BD
CD		CP	CP-64 3627	Dm number	-64 3627	VIred	0.56
SpType	F7V	R SpType		Coord arcsec 2000	172436.37-643411.5

Hipparcos 2

HIP	85193	Sn	55	So	3	Nc	2
RArad	4.5579543049	DErad	-1.1269568356	Plx	8.53	PmRA	-9.67
PmDE	-82.42	E RArad	0.67	E DErad	0.76	E Plx	1.22
E pmRA	0.81	E pmDE	0.91	Hpmag	8.8261	E Hpmag	0.0018
SHp	0.019	VA	0	BV	0.505	E BV	0.016
VI	0.58

CCDM

Ccdm	17246-6434	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.37	DDEs	-12.3
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	9.2	Sp	F7	PmNote	*
PmRA	-10	PmDE	-82	Dm number	-64 3627	Cat1	CPD
Name2		Cat2		HD	156887	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	85193

17246-6434 B

Componente originario normalizzato	AB		Coord arcsec 2000	172436.37-643411.3		Mag	10.09		Calc delta mag	0.86
Calc coord	yes

CCDM

Ccdm	17246-6434	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	0.35	DDEs	-12.2
R dRAs	82	Year	1991	Theta	323	Rho	0.2
Obs	1	Vmag	10.1	Sp		PmNote	*
PmRA	-10	PmDE	-82	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	85193