17089-5034 HDS 2421 (HD 154575)

17^h 08^m 52.88^s -50° 33' 52.2" P.A. 121.00 sep 0.6 mag 9.04,10.65 Sp B9V dist. 255.75 pc (834.26 l.y.)

Coord 2000	17089-5034	Discov num	HDS2421	Comp		Coord arcsec 2000	17 08 52.88 -50 33 52.2
Date first	1991	Date last	2021	Obs	2
Pa first	119	Pa last	121.1	P.A. Now (θ)	121.1°
Sep first	0.6	Sep last	0.579	Sep. Now (ρ)	0.579"
Mag pri	9.04	Mag sec	10.65	delta mag (ΔM)	1.61	Spectral class	B9V (blue-white)
Pri motion ra	+000	Sec motion ra
Pri motion dec	-012	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 154575	Constellation	Ara	SAO	244463	HIP	83902
Tycho2	8336-00386-1	Gaia DR2	5926114786038289280	HD	154575	CD	CD-5011044
CP	CP-50 9861	Distance	255.75	Distance ly	834.26

WDS 17089-5034 HDS 2421 (HD 154575) : 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
17089-5034	HDS2421		1991	1	119	0.6	9.01	11.09	B9V	D	170852.88-503352.2
17089-5034	HDS2421		2021	2	121	0.6	9.04	10.65	B9V		170852.88-503352.2

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

WDS 17089-5034 HDS 2421 (HD 154575) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 17089-5034 HDS 2421 (HD 154575) : MEASURES

No records found.

WDS 17089-5034 (HD 154575) : VIRTUAL EYEPIECE

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

WDS 17089-5034 (HD 154575) : ALADIN DSS IMAGE @ 17^h 08^m 52.88^s -50° 33' 52.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 17089-5034 HDS 2421 (HD 154575) : 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		17089-5034	HDS2421		121	0.6
Show		17084-5055	BRT 946		203	5.6	22
Show		17065-5043	RST1933		3	3.6	25
Show		17098-5106	RST1937		308	2.1	33
Show		17053-5043	RST1931		290	0.3	36
Show		17124-5021	RST1938		102	0.9	36
Show		17087-4955	RST 900		145	1.6	40
Show		17116-4949	NSN 375		166	29.0	52
Show		17040-5105	DUN 212	AB	283	16.2	56
Show		17040-5105	R 289	AC	241	13.3	56
Show		17040-5105	R 289	AE	254	41.6	56
Show		17040-5105	R 289	AF	203	60.5	56
Show		17040-5105	R 289	AD	151	28.0	56
Show		17040-5105	R 289	BC	158	11.0	56
Show		17040-5105	R 289	BE	238	28.6	56
Show		17040-5105	R 289	BF	188	59.9	56
Show		17040-5105	R 289	CG	157	10.2	56
Show		17040-5105	R 289	CH	232	7.1	56
Show		17040-5105	R 289	ED	104	55.3	57
Show		17149-5032	SKF1414		195	18.7	58
Show		17151-5033	I 1000		168	1.1	60
Show		17094-5134	BRT 948		44	4.6	61
Show		17050-5122	RST5596		103	5.3	62
Show		17029-5010	COO 206	AB	233	8.0	63
Show		17029-5010	SIN 99	AC	129	57.8	63
Show		17029-5010	SIN 99	BC	122	60.5	63
Show		17034-5112	RST1928		48	2.4	65
Show		17061-5133	BRT 944		225	5.8	66
Show		17085-4928	HJ 4916		276	9.9	66
Show		17020-5011	COO 204		53	4.3	70
Show		17024-5111	I 1308		343	1.8	72
Show		17018-5108	I 1306		197	0.2	76
Show		17038-4935	LDS 581		316	8.5	77
Show		17004-5055	I 1305		103	1.1	83
Show		17111-4912	CPO 513		193	4.2	85
Show		17006-5106	KPP 387		187	3.9	86
Show		17125-5152	CPO 515	AB	218	10.3	86
Show		17125-5152	RST5597	BC	351	1.9	86
Show		17112-5156	RST3073		294	0.3	86
Show		17140-5144	RST3074		293	3.7	86
Show		17176-5010	I 1314		330	2.7	87
Show		16599-5049	RST1920		289	1.6	87
Show		17042-4919	HDS2415		225	0.2	88
Show		17043-5152	HDS2416		258	5.6	89
Show		17178-5108	HJ 4927		148	10.9	92
Show		17147-4921	RST 910		200	1.9	93
Show		17061-5203	RST1932		219	1.4	94
Show		16593-5110	RST1917		284	0.5	98
Show		17145-4913	RST 909	AB	196	0.6	98
Show		17145-4913	RST 909	AC	205	2.7	98
Show		17085-4850	RST 899		117	0.6	105

WDS 17089-5034 : COMPONENTS

	A
B	pa=133.5° sep=0.43"

17089-5034 A

Componente originario normalizzato	AB	Name	HD 154575	Coord arcsec 2000	170852.88-503352.2	Mag	9.04
Spectral class	B9V (blue-white)	PmRA	0.00	PmDE	-12.0	SAO	244463
HIP	83902	Tycho2	8336-00386-1	HD	154575	CD	CD-5011044
CP	CP-50 9861

Tycho2

Tycho2	8336-00386-1	Pflag		RAmdeg	257.22035012	DEmdeg	-50.56454438
PmRA	-2.0	PmDE	-12.0	E RAmdeg	9	E DEmdeg	10
E pmRA	1.7	E pmDE	1.6	EpRAm	1991.09	EpDEm	1990.92
Num	6	Q RAmdeg	1.0	Q DEmdeg	0.3	Q pmRA	0.9
Q pmDE	0.3	BTmag	8.992	E BTmag	0.019	VTmag	8.815
E VTmag	0.018	Prox	751	TYC	T	HIP	83902
CCDM	AB	RAdeg	257.22035806	DEdeg	-50.56451639	EpRA 1990	1.54
EpDE 1990	1.55	E RAdeg	8.9	E DEdeg	10.0	Posflg	P
Corr	0.0

SAO

SAO	244463	DelFlag		RA1950		PmRA1950	0.0006
DE1950		PmDE1950	-0.006	Vmag	8.5	SpType	A0
Double code		Source	48	CatNum	15808	DM	CP-50 9861
DMcomp		BDsup		HD	154575	M HD	0
GC		RA1950rad	4.47241411	DE1950rad	-0.88139781	PmRA2000	0.0004
PmDE2000	-0.007

Hipparcos

Catalog	H	HIP	83902	Proxy	H	RAhms	17 08 52.88
DEdms	-50 33 52.2	Vmag	8.82	VarFlag		R Vmag	G
RAdeg	257.22	DEdeg	-50.5645	AstroRef	A	Plx	4.45
CCDM	17089-5034	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	119	Rho	0.56	HD	154575	BD
CD	CD-5011044	CP	CP-50 9861	Dm number	-5011044	VIred	0.15
SpType	B9V	R SpType		Coord arcsec 2000	170852.88-503352.2

Hipparcos 2

HIP	83902	Sn	15	So	3	Nc	2
RArad	4.4893418168	DErad	-0.8825171402	Plx	3.91	PmRA	-1.84
PmDE	-12.37	E RArad	1.18	E DErad	0.94	E Plx	1.4
E pmRA	1.56	E pmDE	1.1	Hpmag	8.8618	E Hpmag	0.0023
SHp	0.017	VA	0	BV	0.133	E BV	0.015
VI	0.15

CCDM

Ccdm	17089-5034	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-1.12	DDEs	7.7
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	9.0	Sp	B9	PmNote	*
PmRA	0	PmDE	-12	Dm number	-5011044	Cat1	CD
Name2	244463	Cat2	SAO	HD	154575	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	83902

17089-5034 B

Componente originario normalizzato	AB		Coord arcsec 2000	170852.91-503352.5		Mag	10.65		Calc delta mag	1.61
Calc coord	yes

CCDM

Ccdm	17089-5034	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-1.07	DDEs	7.4
R dRAs	82	Year	1991	Theta	119	Rho	0.6
Obs	1	Vmag	11.1	Sp		PmNote	*
PmRA	0	PmDE	-12	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	83902