19509-2638 B 452 (HD 187441)

19^h 50^m 56.30^s -26° 38' 19.1" P.A. 319.00 sep 0.4 mag 9.40,10.00 Sp A5III

Coord 2000	19509-2638	Discov num	B 452	Comp		Coord arcsec 2000	19 50 56.30 -26 38 19.1
Date first	1926	Date last	1991	Obs	7
Pa first	311	Pa last	319.1	P.A. Now (θ)	319.1°
Sep first	0.4	Sep last	0.411	Sep. Now (ρ)	0.411"
Mag pri	9.40	Mag sec	10.00	delta mag (ΔM)	0.6	Spectral class	A5III (white)
Pri motion ra	-001	Sec motion ra
Pri motion dec	-017	Sec motion dec
Notes	N (See Notes)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 187441		Constellation	Sagittarius		SAO	188623		Tycho2	6899-01807-1
Gaia DR2	6754927200811717504		HD	187441

WDS 19509-2638 B 452 (HD 187441) : NOTES

discov_num	notes	refcode
B 452	Primary is eclipsing binary of Beta Lyr -type, period 1.17154 d.	Zas2012

REFERENCES

refcode	metd	author	reference
Zas2012	-	Zasche, P.	...................
Zas2012		private communication, 2012

DISCOVERER

idgroup	discov	author
1	B	van den Bos, W.H.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19509-2638	B 452		1991	7	319	0.4	9.40	10.00	A5III		195056.30-263819.1

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WDS 19509-2638 B 452 (HD 187441) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 19509-2638 B 452 (HD 187441) : MEASURES

No records found.

WDS 19509-2638 (HD 187441) : VIRTUAL EYEPIECE

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WDS 19509-2638 (HD 187441) : ALADIN DSS IMAGE @ 19^h 50^m 56.30^s -26° 38' 19.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 19509-2638 B 452 (HD 187441) : 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		19509-2638	B 452		319	0.4	1
Show		19504-2647	LDS5886	AB	68	47.5	12
Show		19504-2647	LDS5886	AC	76	193.0	12
Show		19507-2610	OL 24		35	1.1	29
Show		19528-2653	SKF2081		165	9.0	30
Show		19513-2711	HJ 2901		155	6.5	33
Show		19483-2640	SEE 395		102	1.7	35
Show		19497-2727	UC 4032		162	22.9	52
Show		19513-2734	UC 4042		103	65.5	56
Show		19481-2554	OCC 123		-1	0.1	59
Show		19555-2649	UC 4053	AB	42	10.9	62
Show		19540-2729	RSS 535		107	9.4	66
Show		19559-2633	OCC 727		-1	0.1	67
Show		19558-2618	OCC 704		-1	0.0	69
Show		19531-2528	B 454		337	0.3	77
Show		19526-2751	LDS5889		87	417.3	78
Show		19508-2759	I 1405		59	0.3	82
Show		19467-2740	HJ 2893		54	9.4	85
Show		19443-2657	TDT1690		324	1.1	91
Show		19460-2532	HJ 5144		10	10.0	95
Show		19564-2531	UC 4056		215	47.0	100
Show		19582-2715	RSS 537		178	10.1	104
Show		19491-2825	RSS 534		90	11.4	110
Show		19458-2513	OCC 67		-1	0.1	110
Show		19456-2511	OCC 69	AB	-1	0.1	114
Show		19439-2535	LDS4814		208	13.3	115
Show		19594-2618	KPP4342	AB	123	2.0	116
Show		19594-2618	KPP4342	CB	169	46.5	116
Show		19477-2829	B 448		126	3.6	120
Show		19419-2646	BRT3086		208	5.4	121
Show		20000-2644	LDS5893		68	190.0	122
Show		19464-2453	SEE 394		286	1.2	122
Show		19549-2831	LDS5890		355	144.3	125
Show		19512-2843	LDS5888		90	105.0	126
Show		19421-2554	KPP 610		236	5.6	127
Show		19577-2808	LDS5892		83	190.5	128
Show		20006-2643	KPP 451		217	3.1	131
Show		19578-2507	TDT1881		29	1.6	131
Show		19589-2521	LDS4825		329	58.1	131
Show		19492-2847	I 1039		290	2.0	132
Show		19506-2427	HJ 2899		310	8.2	132
Show		19416-2724	TDT1638		55	0.5	133
Show		19434-2510	OCC 68		-1	0.1	135
Show		19541-2430	B 455		265	2.4	136
Show		19411-2607	RST2116		152	1.2	136
Show		20009-2711	HJ 5164		122	9.2	137
Show		20012-2636	RST1055		245	1.9	138
Show		19574-2448	OCC 169		-1	0.8	140
Show		19571-2834	LDS4823		45	4.0	142
Show		19453-2436	TDS1009		248	1.1	144
Show		20000-2512	KPP3122		355	1.7	150

WDS 19509-2638 : COMPONENTS

	A
B	pa=322.3° sep=0.39"

19509-2638 A

Componente originario normalizzato	AB	Name	HD 187441	Coord arcsec 2000	195056.30-263819.1	Mag	9.4
Spectral class	A5III (white)	PmRA	-1.00	PmDE	-17.0	SAO	188623
Tycho2	6899-01807-1	HD	187441	DM	CD-2614561

Tycho2

Tycho2	6899-01807-1	Pflag		RAmdeg	297.73459214	DEmdeg	-26.63866681
PmRA	1.3	PmDE	-16.9	E RAmdeg	12	E DEmdeg	13
E pmRA	1.6	E pmDE	1.5	EpRAm	1989.88	EpDEm	1989.04
Num	6	Q RAmdeg	0.5	Q DEmdeg	0.6	Q pmRA	0.5
Q pmDE	0.6	BTmag	9.626	E BTmag	0.024	VTmag	9.343
E VTmag	0.022	Prox	999	TYC	T	HIP
CCDM		RAdeg	297.73458889	DEdeg	-26.63862722	EpRA 1990	1.70
EpDE 1990	1.54	E RAdeg	11.5	E DEdeg	14.4	Posflg
Corr	-0.2

SAO

SAO	188623	DelFlag		RA1950		PmRA1950	0.0003
DE1950		PmDE1950	-0.007	Vmag	8.6	SpType	A2
Double code		Source	25	CatNum	13817	DM	CD-2614561
DMcomp		BDsup		HD	187441	M HD	0
GC		RA1950rad	5.18309472	DE1950rad	-0.46715903	PmRA2000	0.0002
PmDE2000	-0.008

CCDM

Ccdm	19509-2638	RComp		Comp	A	Note1
Note2		Discov num		DRAs	2.26	DDEs	-18.3
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.4	Sp	A2	PmNote	*
PmRA	4	PmDE	-7	Dm number	-2614561	Cat1	CD
Name2	188623	Cat2	SAO	HD	187441	M HD
ADS BDS	A13002	M ADS BDS		N IDS		IDS	19448S2653A
HIC

19509-2638 B

Componente originario normalizzato	AB		Coord arcsec 2000	195056.28-263818.8		Mag	10		Calc delta mag	0.6
Calc coord	yes

CCDM

Ccdm	19509-2638	RComp		Comp	B	Note1
Note2		Discov num	B 452	DRAs		DDEs
R dRAs		Year	1926	Theta	312	Rho	0.4
Obs	3	Vmag	10.0	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A13002	M ADS BDS		N IDS		IDS	19448S2653B
HIC