18237+3821 HO 431 (HD 169617)

18^h 23^m 44.07^s +38° 20' 42.3" P.A. 4.00 sep 19.8 mag 6.91,12.30 Sp A0III dist. 167.5 pc (546.38 l.y.)

Coord 2000	18237+3821	Discov num	HO 431	Comp		Coord arcsec 2000	18 23 44.07 +38 20 42.3
Date first	1892	Date last	2015	Obs	12
Pa first	359	Pa last	3.6	P.A. Now (θ)	3.6°
Sep first	21.2	Sep last	19.78	Sep. Now (ρ)	19.78"
Mag pri	6.91	Mag sec	12.30	delta mag (ΔM)	5.39	Spectral class	A0III (white)
Pri motion ra	-010	Sec motion ra
Pri motion dec	+017	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 169617	Constellation	Lyra	SAO	66933	HIP	90140
Tycho2	3104-01010-1	Gaia DR2	2108224455757800832	HD	169617	GC	25129
BD	BD+38 3159	Distance	167.5	Distance ly	546.38

WDS 18237+3821 HO 431 (HD 169617) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Ho_1883	Ma j	Hough, G.W.	1883MNRAS..43..371H
Ho_1883		MNRAS 43, 371, 1883 (data also in Ho_1890)	1890AN....125....1H
Ho_1884	Ma j	Hough, G.W.	1884MNRAS..44..365H
Ho_1884		MNRAS 44, 365, 1884 (data also in Ho_1890)	1890AN....125....1H
Ho_1885	Ma j	Hough, G.W.	1885MNRAS..45..417H
Ho_1885		MNRAS 45, 417, 1885 (data also in Ho_1890)	1890AN....125....1H
Ho_1886	Ma j	Hough, G.W.	1886MNRAS..46..393H
Ho_1886		MNRAS 46, 393, 1886 (data also in Ho_1890)	1890AN....125....1H
Ho_1887	Ma j	Hough, G.W.	1887AN....116..273H
Ho_1887		AN 116, 273, 1887
Ho_1890	Ma j	Hough, G.W.	1890AN....125....1H
Ho_1890		AN 125, 1, 1890
Ho_1890b	Ma j	Hough, G.W.	1890AJ......9..177H
Ho_1890b		AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b)	1890AN....125....1H
Ho_1894a	Ma -	Hough, G.W.	1894MNRAS..54..251H
Ho_1894a		MNRAS 54, 251, 1894
Ho_1894b	Ma j	Hough, G.W. (HO 304 - 490)	1894AN....135..281H
Ho_1894b		AN 135, 281, 1894
Ho_1894c	Ma -	Hough, G.W. (measure by Dembowski, H.)	1894AN....135..281H
Ho_1894c		AN 135, 281, 1894
Ho_1899a	Ma j	Hough, G.W.	1899AN....149..65H
Ho_1899a		AN 149, 65, 1899
Ho_1899b	Ma -	Hough, G.W. (measure by Burnham, S.W.)	1899AN....149..65H
Ho_1899b		AN 149, 65, 1899
Ho_1907	Ma -	Hough, G.W.	1907PFAO....3c...1D
Ho_1907		Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle)
Ho_1932A	Ma -	Hough, G.W.	1932QB821.A43......
Ho_1932A		cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
18237+3821	HO 431		1998	4	5	20.0	6.80	12.30	A0III	D	182344.07+382042.3
18237+3821	HO 431		2002	5	5	20.3	6.80	12.30	A0III	D	182344.07+382042.3
18237+3821	HO 431		2010	6	5	19.2	6.91	12.30	A0III		182344.07+382042.3
18237+3821	HO 431		2015	7	4	19.8	6.91	12.30	A0III		182344.07+382042.3

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

WDS 18237+3821 HO 431 (HD 169617) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18237+3821 HO 431 (HD 169617) : MEASURES

No records found.

WDS 18237+3821 (HD 169617) : VIRTUAL EYEPIECE

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

WDS 18237+3821 (HD 169617) : ALADIN DSS IMAGE @ 18^h 23^m 44.07^s +38° 20' 42.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18237+3821 HO 431 (HD 169617) : 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		18237+3821	HO 431		4	19.8
Show		18239+3824	HEI 803		284	3.4	4
Show		18217+3821	TDT 815		88	0.8	24
Show		18240+3844	HO 432	AB	285	17.2	24
Show		18240+3844	HO 432	AC	42	60.5	24
Show		18216+3842	LDS5861		140	4.7	32
Show		18272+3847	MLB 854		9	6.8	50
Show		18211+3917	COU1459		92	1.4	64
Show		18184+3814	RAO 387		107	2.0	64
Show		18212+3917	COU1460		342	0.5	64
Show		18213+3920	HJ 1321		75	9.5	66
Show		18210+3923	DAM 108		115	5.6	71
Show		18180+3846	GIC 151		277	9.8	72
Show		18196+3915	MLB 754		49	4.4	73
Show		18298+3803	HU 1189		210	1.4	74
Show		18189+3918	MLB1078		316	6.6	81
Show		18301+3746	UC 3595		211	45.6	83
Show		18309+3840	STF2338	CD	243	13.0	86
Show		18309+3840	STF2338	CE	69	60.7	86
Show		18309+3840	STF2338	AB	301	12.1	87
Show		18309+3840	STF2338	AC	206	76.4	87
Show		18309+3840	STF2338	AE	154	51.7	87
Show		18183+3920	ALI1101		176	7.6	87
Show		18256+3945	COU1461		245	0.8	88
Show		18163+3846	KPP1820		296	14.1	91
Show		18243+3650	CRB 125		161	11.9	92
Show		18310+3857	FYM 40	BE	210	11.3	93
Show		18310+3857	TDT 922	Aa,Ab	15	0.5	93
Show		18310+3857	SLE 187	AB	210	23.6	93
Show		18310+3857	FYM 40	AC	85	71.0	93
Show		18310+3857	FYM 40	AD	294	13.5	93
Show		18310+3857	FYM 40	AE	210	34.9	93
Show		18273+3944	TDT 881		4	0.8	94
Show		18156+3820	CBL 75		207	18.5	96
Show		18316+3846	COU1604		130	1.8	96
Show		18155+3822	ALI 870		242	8.8	97
Show		18297+3929	TDT 910		196	0.8	98
Show		18156+3842	ALI 871		181	12.9	98
Show		18154+3836	MLB 852		42	8.9	99
Show		18298+3930	SLE 182		252	11.4	100
Show		18177+3932	TDT 778		177	0.9	101
Show		18300+3710	BU 420	AB	274	1.8	103
Show		18300+3710	BU 420	AC	197	20.1	103
Show		18150+3840	LDS4781			2.5	104
Show		18208+3639	COU1306		42	0.5	108
Show		18169+3935	TDT 773		128	0.9	110
Show		18241+4010	ES 1652		150	6.0	110
Show		18172+3703	COU1305		186	1.8	110
Show		18329+3850	FYM 41	BN	87	41.9	111
Show		18329+3850	STTA171	AB	328	150.1	111
Show		18329+3850	SLE 200	AC	226	68.9	111

WDS 18237+3821 : COMPONENTS

	A
B	pa=2.8° sep=19.76"

18237+3821 A

Componente originario normalizzato	AB	Name	HD 169617	Coord arcsec 2000	182344.07+382042.3	Mag	6.91
Spectral class	A0III (white)	PmRA	-10.00	PmDE	17.0	SAO	66933
HIP	90140	Tycho2	3104-01010-1	HD	169617	GC	25129
BD	BD+38 3159

Tycho2

Tycho2	3104-01010-1	Pflag		RAmdeg	275.93358330	DEmdeg	38.34511490
PmRA	-10.6	PmDE	16.1	E RAmdeg	4	E DEmdeg	4
E pmRA	1.5	E pmDE	1.5	EpRAm	1991.44	EpDEm	1991.54
Num	10	Q RAmdeg	1.0	Q DEmdeg	0.8	Q pmRA	0.9
Q pmDE	0.7	BTmag	6.904	E BTmag	0.014	VTmag	6.911
E VTmag	0.010	Prox	999	TYC	T	HIP	90140
CCDM		RAdeg	275.93361500	DEdeg	38.34507778	EpRA 1990	1.59
EpDE 1990	1.70	E RAdeg	3.8	E DEdeg	3.7	Posflg
Corr	0.0

SAO

SAO	66933	DelFlag		RA1950		PmRA1950	-0.0004
DE1950		PmDE1950	0.003	Vmag	6.8	SpType	A0
Double code		Source	70	CatNum	25129	DM	BD+38 3159
DMcomp		BDsup		HD	169617	M HD	0
GC	25129	RA1950rad	4.80859268	DE1950rad	0.66875757	PmRA2000	0
PmDE2000	0.003

Hipparcos

Catalog	H	HIP	90140	Proxy		RAhms	18 23 44.07
DEdms	+38 20 42.3	Vmag	6.92	VarFlag		R Vmag	H
RAdeg	275.934	DEdeg	38.3451	AstroRef		Plx	6.15
CCDM	18237+3821	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	169617	BD	BD+38 3159
CD		CP		Dm number	+38 3159	VIred	0
SpType	A0	R SpType		Coord arcsec 2000	182344.07+382042.3

Hipparcos 2

HIP	90140	Sn	5	So	0	Nc	1
RArad	4.8159500983	DErad	0.669247796	Plx	5.97	PmRA	-9.61
PmDE	16.93	E RArad	0.29	E DErad	0.25	E Plx	0.35
E pmRA	0.33	E pmDE	0.33	Hpmag	6.926	E Hpmag	0.0011
SHp	0.008	VA	0	BV	-0.004	E BV	0.007
VI	0.02

CCDM

Ccdm	18237+3821	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.00	DDEs	-18.2
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	6.8	Sp	A0	PmNote	*
PmRA	-25	PmDE	8	Dm number	+38 3159	Cat1	BD
Name2	+38 1683	Cat2	AGK2/3	HD	169617	M HD
ADS BDS	A11317	M ADS BDS		N IDS		IDS	18204N3817A
HIC	90140

18237+3821 B

Componente originario normalizzato	AB		Coord arcsec 2000	182344.15+382102.0		Mag	12.3		Calc delta mag	5.39
Calc coord	yes

CCDM

Ccdm	18237+3821	RComp		Comp	B	Note1
Note2		Discov num	HO 431	DRAs		DDEs
R dRAs		Year	1892	Theta	360	Rho	21.2
Obs	3	Vmag	12.3	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A11317	M ADS BDS		N IDS		IDS	18204N3817B
HIC