18454+3634 HDS 2659 (HD 173761)

18^h 45^m 21.71^s +36° 34' 02.1" P.A. 17.00 sep 0.2 mag 7.15,9.52 Sp B9 dist. 210.08 pc (685.28 l.y.)

Coord 2000	18454+3634	Discov num	HDS2659	Comp		Coord arcsec 2000	18 45 21.71 +36 34 02.1
Date first	1991	Date last	2014	Obs	5
Pa first	34	Pa last	17	P.A. Now (θ)	17°
Sep first	0.3	Sep last	0.199	Sep. Now (ρ)	0.199"
Mag pri	7.15	Mag sec	9.52	delta mag (ΔM)	2.37	Spectral class	B9 (blue-white)
Pri motion ra	-004	Sec motion ra
Pri motion dec	+002	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 173761	Constellation	Lyra	SAO	67334	HIP	92020
Tycho2	2650-00607-1	Gaia DR2	2096533795298529408	HD	173761	GC	25703
BD	BD+36 3256	Distance	210.08	Distance ly	685.28

WDS 18454+3634 HDS 2659 (HD 173761) : 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
18454+3634	HDS2659		2007	2	22	0.2	7.15	9.52	B9		184521.71+363402.1
18454+3634	HDS2659		2008	3	15	0.4	7.15	9.52	B9		184521.71+363402.1
18454+3634	HDS2659		2014	5	17	0.2	7.15	9.52	B9		184521.71+363402.1

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WDS 18454+3634 HDS 2659 (HD 173761) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18454+3634 HDS 2659 (HD 173761) : MEASURES

No records found.

WDS 18454+3634 (HD 173761) : VIRTUAL EYEPIECE

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WDS 18454+3634 (HD 173761) : ALADIN DSS IMAGE @ 18^h 45^m 21.71^s +36° 34' 02.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18454+3634 HDS 2659 (HD 173761) : 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		18454+3634	HDS2659		17	0.2
Show		18449+3651	ES 2483		89	5.7	20
Show		18459+3657	COU1309		175	0.5	24
Show		18475+3647	ES 2022		127	4.5	30
Show		18471+3656	COU1310		4	1.5	31
Show		18423+3616	A 1381		93	0.4	42
Show		18446+3715	UC 3660		258	29.3	42
Show		18419+3629	SLE 364		170	22.1	42
Show		18484+3612	ES 2023		245	6.5	43
Show		18477+3600	ALI 142		126	12.7	45
Show		18412+3627	TDT 993		164	0.4	51
Show		18445+3733	ES 2482		161	12.4	62
Show		18452+3532	STF2386	AB	18	21.1	62
Show		18452+3532	FOX 234	AC	75	56.7	62
Show		18448+3736	BU 968	AB	50	22.3	63
Show		18448+3736	BU 968	AC	270	48.9	63
Show		18448+3736	STFA 38	AD	150	43.7	63
Show		18448+3736	BU 968	AE	298	62.5	63
Show		18448+3736	FYM 42	AF	330	77.5	63
Show		18504+3614	ES 2024		351	6.4	65
Show		18434+3533	STF2378	AB	190	11.5	66
Show		18434+3533	SLE 688	AD	16	109.8	66
Show		18434+3533	STF2378	AC	243	210.2	66
Show		18434+3533	FYM 48	AE	270	110.9	66
Show		18434+3533	FYM 48	AF	134	66.7	66
Show		18434+3533	STF2378	BC	246	203.5	66
Show		18416+3541	KPP4116		252	1.7	71
Show		18463+3745	ES 2484		153	6.8	73
Show		18516+3648	ES 241		72	2.2	76
Show		18483+3741	UC 3677		338	64.3	76
Show		18389+3658	ALI 378		33	12.4	83
Show		18451+3756	ES 2020		343	3.2	83
Show		18384+3603	STF2362		187	4.4	90
Show		18380+3652	KPP1213		171	9.4	91
Show		18523+3713	COU1311		226	1.3	93
Show		18530+3621	HJ 1354	AB	5	10.2	93
Show		18527+3704	UC 3706		241	15.4	93
Show		18529+3614	A 1383		299	1.4	94
Show		18464+3500	SLE 367		290	18.5	96
Show		18532+3654	TDT1110		3	1.3	97
Show		18495+3512	POP 44		230	9.7	97
Show		18520+3731	ES 2026	AB	112	20.5	99
Show		18530+3603	ALI 143		60	13.0	99
Show		18520+3731	ES 2026	BC	334	4.6	99
Show		18511+3524	J 110		174	1.9	99
Show		18516+3739	ES 2025	AB	353	25.0	99
Show		18516+3739	ES 2025	AD	356	30.1	99
Show		18516+3739	FYM 39	AE	299	63.2	99
Show		18516+3739	FYM 39	AF	205	87.9	99
Show		18516+3739	FYM 39	AG	116	55.1	99
Show		18516+3739	ES 2025	BC	78	5.9	99

WDS 18454+3634 : COMPONENTS

	A
B	pa=13.8° sep=0.20"

18454+3634 A

Componente originario normalizzato	AB	Name	HD 173761	Coord arcsec 2000	184521.71+363402.1	Mag	7.15
Spectral class	B9 (blue-white)	PmRA	-4.00	PmDE	2.0	SAO	67334
HIP	92020	Tycho2	2650-00607-1	HD	173761	GC	25703
BD	BD+36 3256

Tycho2

Tycho2	2650-00607-1	Pflag		RAmdeg	281.34042288	DEmdeg	36.56724747
PmRA	-7.6	PmDE	-1.9	E RAmdeg	4	E DEmdeg	4
E pmRA	1.6	E pmDE	1.6	EpRAm	1991.41	EpDEm	1991.43
Num	11	Q RAmdeg	0.8	Q DEmdeg	1.2	Q pmRA	0.8
Q pmDE	1.1	BTmag	7.008	E BTmag	0.015	VTmag	7.033
E VTmag	0.010	Prox	999	TYC	T	HIP	92020
CCDM	AB	RAdeg	281.34044500	DEdeg	36.56725194	EpRA 1990	1.57
EpDE 1990	1.59	E RAdeg	3.9	E DEdeg	3.8	Posflg	P
Corr	0.1

SAO

SAO	67334	DelFlag		RA1950		PmRA1950	-0.0014
DE1950		PmDE1950	0.015	Vmag	6.9	SpType	B9
Double code		Source	70	CatNum	25703	DM	BD+36 3256
DMcomp		BDsup		HD	173761	M HD	0
GC	25703	RA1950rad	4.90266462	DE1950rad	0.63728538	PmRA2000	-0.0011
PmDE2000	0.015

Hipparcos

Catalog	H	HIP	92020	Proxy	H	RAhms	18 45 21.71
DEdms	+36 34 02.1	Vmag	7.03	VarFlag		R Vmag	H
RAdeg	281.34	DEdeg	36.5673	AstroRef	*	Plx	4.7
CCDM	18454+3634	N CCDM	H	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	34	Rho	0.292	HD	173761	BD	BD+36 3256
CD		CP		Dm number	+36 3256	VIred	0
SpType	B9	R SpType		Coord arcsec 2000	184521.71+363402.1

Hipparcos 2

HIP	92020	Sn	55	So	3	Nc	2
RArad	4.9103171556	DErad	0.6382189837	Plx	4.76	PmRA	-4.63
PmDE	2.76	E RArad	0.34	E DErad	0.4	E Plx	0.44
E pmRA	0.34	E pmDE	0.56	Hpmag	7.0357	E Hpmag	0.001
SHp	0.008	VA	0	BV	-0.021	E BV	0.005
VI	0

CCDM

Ccdm	18454+3634	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.30	DDEs	2.1
R dRAs	82	Year		Theta		Rho
Obs	2	Vmag	7.2	Sp	B9	PmNote	*
PmRA	-4	PmDE	2	Dm number	+36 3256	Cat1	BD
Name2	+36 1683	Cat2	AGK2/3	HD	173761	M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	92020

18454+3634 B

Componente originario normalizzato	AB		Coord arcsec 2000	184521.71+363402.3		Mag	9.52		Calc delta mag	2.37
Calc coord	yes

CCDM

Ccdm	18454+3634	RComp		Comp	B	Note1
Note2		Discov num	HDS	DRAs	-2.29	DDEs	2.3
R dRAs	82	Year	1991	Theta	34	Rho	0.3
Obs	1	Vmag	9.5	Sp		PmNote	*
PmRA	-4	PmDE	2	Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS		M ADS BDS		N IDS		IDS
HIC	92020