20093+3529 STF 2639 AB (HD 191566)

20^h 09^m 14.32^s +35° 29' 01.9" P.A. 301.00 sep 5.8 mag 7.78,8.67 Sp B0.5IV dist. 387.6 pc (1264.35 l.y.)

Coord 2000	20093+3529	Discov num	STF2639	Comp	AB	Coord arcsec 2000	20 09 14.32 +35 29 01.9
Date first	1825	Date last	2018	Obs	57
Pa first	303	Pa last	301.1	P.A. Now (θ)	301.1°
Sep first	5.4	Sep last	5.783	Sep. Now (ρ)	5.783"
Mag pri	7.78	Mag sec	8.67	delta mag (ΔM)	0.89	Spectral class	B0.5IV (blue-white)
Pri motion ra	-003	Sec motion ra	+005
Pri motion dec	-005	Sec motion dec	-016
Notes

rPM=0.811

This double is not physical.

20093+3529 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 191566	69512	20 09 14 +35 29 02	STF 2639 AB	2018	57	301	5.8	7.78	8.67	0.89		<===
Show		69512	20 09 14 +35 29 02	SEI 923 AC	2016	13	93	37.4	7.78	11.26	3.48
Show			20 09 17 +35 28 60	SEI 924 CD	2016	16	207	27.8	11.26	11.61	0.35

Quadruple system
4 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 191566	Constellation	Cygnus	SAO	69512	HIP	99283
Tycho2	2679-00447-1	Gaia DR2	2058844907537751680	HD	191566	GC	27973
BD	BD+35 3994	Distance	387.6	Distance ly	1264.35

WDS 20093+3529 STF 2639 AB (HD 191566) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Sei1908	Pa -	Scheiner, J.	1908POPot..59.....S
Sei1908	+Po	Pub. Obs. Potsdam 20, #59, 1908
Sei1913A	Pa -	Scheiner, J.	1913QB811.B8.......
Sei1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A	Pa -	Scheiner, J.	1932QB821.A43......
Sei1932A		cited in ADS (Aitken Double Star Cat.), 1932
STFA		(F. Struve DD - Appendix list #1)	...................
STFB		(F. Struve DD - Appendix list #2)	...................
StF1833A	Ma -	Struve, F.G.W.	1833MmRAS...5...13H
StF1833A	+Mc	cited by Herschel (MemRAS 5, 13, 1833)
StF1833B	Ma -	Struve, F.G.W.	1833AN.....10..389B
StF1833B		cited by Bessel (AN 10, 389, 1833)
StF1837	Ma -	Struve, F.G.W.	1837AN.....14...249
StF1837		Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837		(Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A	Ma -	Struve, F.G.W.	1844QB43.S66.......
StF1844A		cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A	Ma -	Struve, F.G.W.	.
StF1852A		cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A	Ma -	Struve, F.G.W.	1865AN.....64...81E
StF1865A		cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A	Ma -	Struve, F.G.W.	1875AN.....85..323D
StF1875A		cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878	Ma -	Struve, F.G.W.	.
StF1878		Pulkova Observations 9, 1878
StF1878B	Ma -	Struve, F.G.W.	1878Obs.....2..239G
StF1878B		cited by Gledhill (Obs 2, 239, 1878)
StF1880A	Ma -	Struve, F.G.W.	1880Obs.....3..535G
StF1880A		cited by Gledhill (Obs 3, 535, 1880)
StF1906A	Ma -	Struve, F.G.W.	1906QB821.B972.....
StF1906A		cited in BDS (Burnham Double Star Cat.), 1906
StF1906B	Ma -	Struve, F.G.W.	1906MmRAS..56....1L
StF1906B		cited by Lewis (MemRAS 56, 1, 1906)
StF1922A	Ma -	Struve, F.G.W.	1922AN....216...49R
StF1922A		cited by Rabe (AN 216, 49, 1922)
StF1932A	Ma -	Struve, F.G.W.	1932QB821.A43......
StF1932A		cited in ADS (Aitken Double Star Cat.), 1932
StF2002	- -	Weis, J.
StF2002		F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002		USNO Library : QB 821 .S8 W49 2002
StF2022	- -	email note from Jan Weis: 6 July 2022
StF9999	Ma -	Struve, F.G.W.	...................
StF9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20093+3529	STF2639	AB	2007	48	302	5.9	7.78	8.67	B0.5IV	D	200914.32+352901.9
20093+3529	STF2639	AB	2012	51	301	5.7	7.78	8.67	B0.5IV	D	200914.32+352901.9
20093+3529	STF2639	AB	2016	53	300	5.5	7.78	8.67	B0.5IV		200914.32+352901.9
20093+3529	STF2639	AB	2018	55	302	5.8	7.78	8.67	B0.5IV		200914.32+352901.9

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

WDS 20093+3529 STF 2639 AB (HD 191566) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20093+3529 STF 2639 AB (HD 191566) : MEASURES

No records found.

WDS 20093+3529 (HD 191566) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20093+3529 (HD 191566) : ALADIN DSS IMAGE @ 20^h 09^m 14.32^s +35° 29' 01.9"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20093+3529 STF 2639 AB (HD 191566) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20093+3529	STF2639	AB	301	5.8
Show		20093+3529	SEI 923	AC	93	37.4
Show		20093+3529	SEI 924	CD	207	27.8	1
Show		20096+3530	SEI 930	AB	101	22.5	5
Show		20096+3530	BKO 97	AC	178	24.1	5
Show		20096+3530	BKO 97	AE	107	70.4	5
Show		20096+3530	BKO 97	CD	11	8.7	5
Show		20089+3531	SEI 917		338	28.4	5
Show		20096+3532	SEI 931		81	16.0	5
Show		20095+3525	TDT2034		120	0.3	6
Show		20096+3530	BKO 97	EF	312	8.3	6
Show		20097+3535	BKO 98	CD	261	6.8	8
Show		20097+3535	SEI 935	AB	95	7.2	8
Show		20097+3535	SEI 934	AC	161	20.2	8
Show		20086+3529	TDS1046		341	1.2	9
Show		20087+3525	SEI 915		230	29.0	9
Show		20092+3520	ALI 184		228	13.2	10
Show		20092+3540	SEI 922		215	18.5	11
Show		20084+3528	ES 203		130	6.1	11
Show		20096+3519	COU2128		243	2.1	12
Show		20090+3516	SEI 919		118	5.5	15
Show		20083+3519	COU2127		227	0.2	16
Show		20080+3521	SEI 907		204	21.2	17
Show		20079+3522	ALI 182	AB	358	9.4	18
Show		20079+3522	BKO 95	AC	36	7.5	18
Show		20107+3529	RAO 427		126	0.5	19
Show		20077+3523	BKO 93	AB	75	3.5	20
Show		20077+3523	BKO 93	AC	223	6.5	20
Show		20078+3520	BKO 94	BC	46	13.5	20
Show		20078+3520	SEI 901	AB	86	15.6	20
Show		20097+3510	SEI 937		67	25.3	21
Show		20099+3509	BKO 99		67	7.3	22
Show		20075+3535	COU2126		158	0.7	23
Show		20096+3506	TOB 173		186	15.6	24
Show		20103+3511	SEI 941		156	27.5	24
Show		20073+3534	COU2125	Aa,Ab	69	0.1	25
Show		20073+3534	ES 2248	AB	30	5.9	25
Show		20073+3534	ES 2248	AC	222	50.6	25
Show		20073+3534	SEI 893	CD	119	27.4	25
Show		20074+3537	ALI 181		219	14.6	25
Show		20105+3550	SEI 944		90	17.2	25
Show		20072+3531	SEI 890	AB	94	15.3	25
Show		20072+3531	BKO 90	AC	52	13.8	25
Show		20113+3527	SEI 966		246	26.0	26
Show		20074+3543	STT 398	AB	82	1.0	27
Show		20074+3543	A 280	AC	133	5.7	27
Show		20114+3532	TDT2064		329	0.6	27
Show		20115+3539	SEI 968		127	5.6	29
Show		20081+3554	TDS1043		235	0.9	29
Show		20108+3552	SEI 954		314	4.8	30
Show		20096+3459	SEI 929		31	20.9	31

WDS 20093+3529 : COMPONENTS

	A	B	C
B	pa=306.5° sep=5.02"
C	pa=93.0° sep=38.04"	pa=96.8° sep=42.31"
D	pa=134.0° sep=38.49"	pa=133.2° sep=43.47"	pa=202.6° sep=26.81"

20093+3529 A

Name	HD 191566	Coord arcsec 2000	200914.32+352901.9	Mag	7.78	Spectral class	B0.5IV (blue-white)
PmRA	-3.00	PmDE	-5.0	SAO	69512	HIP	99283
Tycho2	2679-00447-1	HD	191566	GC	27973	BD	BD+35 3994

Tycho2

Tycho2	2679-00447-1	Pflag		RAmdeg	302.30966579	DEmdeg	35.48385943
PmRA	-5.5	PmDE	-5.1	E RAmdeg	6	E DEmdeg	5
E pmRA	1.4	E pmDE	1.5	EpRAm	1991.31	EpDEm	1991.62
Num	10	Q RAmdeg	1.8	Q DEmdeg	1.6	Q pmRA	1.9
Q pmDE	1.6	BTmag	7.902	E BTmag	0.015	VTmag	7.783
E VTmag	0.012	Prox	58	TYC	T	HIP	99283
CCDM	A	RAdeg	302.30968167	DEdeg	35.48387111	EpRA 1990	1.58
EpDE 1990	1.79	E RAdeg	5.6	E DEdeg	4.8	Posflg
Corr	-0.2

SAO

SAO	69512	DelFlag		RA1950		PmRA1950	0.0005
DE1950		PmDE1950	0.005	Vmag	7.5	SpType	B3p
Double code		Source	70	CatNum	27973	DM	BD+35 3994
DMcomp		BDsup		HD	191566	M HD	0
GC	27973	RA1950rad	5.26804432	DE1950rad	0.61673395	PmRA2000	0.0008
PmDE2000	0.003

Hipparcos

Catalog	H	HIP	99283	Proxy	H	RAhms	20 09 14.32
DEdms	+35 29 01.9	Vmag	7.38	VarFlag		R Vmag	H
RAdeg	302.31	DEdeg	35.4839	AstroRef	A	Plx	1.5
CCDM	20092+3529	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	301	Rho	5.746	HD	191566	BD	BD+35 3994
CD		CP		Dm number	+35 3994	VIred	0.18
SpType	B0.5IV	R SpType		Coord arcsec 2000	200914.32+352901.9

Hipparcos 2

HIP	99283	Sn	15	So	3	Nc	2
RArad	5.2762991893	DErad	0.6193103182	Plx	2.58	PmRA	-1.65
PmDE	-7.37	E RArad	0.66	E DErad	0.72	E Plx	0.94
E pmRA	0.82	E pmDE	0.97	Hpmag	7.4214	E Hpmag	0.0013
SHp	0.014	VA	0	BV	0.126	E BV	0.01
VI	0.14

20093+3529 B

Coord arcsec 2000	200913.99+352904.9		Mag	8.67		PmRA	5.00		PmDE	-16.0
Calc delta mag	0.89		Calc coord	yes

20093+3529 C

Coord arcsec 2000	200917.43+352859.9		Coord calc	200917.43+352859.9		Mag	11.26		PmRA	-2.00
PmDE	-7.0		Calc delta mag	3.48

20093+3529 D

Coord arcsec 2000	200916.59+352835.2		Mag	11.61		PmRA	-3.00		PmDE	-6.0
Calc delta mag	3.83		Calc coord	yes