21090+0643 STT 428 (HD 201364)

21^h 08^m 59.63^s +06° 43' 24.5" P.A. 256.00 sep 24.0 mag 8.41,9.93 Sp F0V+F6V dist. 401.61 pc (1310.05 l.y.)

Coord 2000	21090+0643	Discov num	STT 428	Comp		Coord arcsec 2000	21 08 59.63 +06 43 24.5
Date first	1843	Date last	2019	Obs	32
Pa first	257	Pa last	255.7	P.A. Now (θ)	255.7°
Sep first	23.0	Sep last	24.01	Sep. Now (ρ)	24.01"
Mag pri	8.41	Mag sec	9.93	delta mag (ΔM)	1.52	Spectral class	F0V+F6V (yellow-white/yellow-white)
Pri motion ra	-005	Sec motion ra	-046
Pri motion dec	+005	Sec motion dec	+008
Notes	Y (Parallax indicates components are non-physical)

rPM=0.88

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 201364	Constellation	Equuleus	SAO	126576	HIP	104397
Tycho2	0539-00714-1	Gaia DR2	1736844199947575040	HD	201364	BD	BD+06 4759
Distance	401.61	Distance ly	1310.05

WDS 21090+0643 STT 428 (HD 201364) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
STTA		(O. Struve DD - Appendix list)	...................
Stt1864	Ma -	Struve, O.	1864MNRAS..24..149S
Stt1864		MNRAS 24, 149, 1864
Stt1866	orb -	Struve, O.	.
Stt1866		Bull. Imp. Acad. Sci. St. Petersburg, 1866
Stt1874	orb -	Struve, O.	.
Stt1874		Compte Rendus 79, 1467, 1874
Stt1875	orb -	Struve, O.	1875MNRAS..35..367S
Stt1875		MNRAS 35, 367, 1875
Stt1878	Ma -	Struve, O.	1878ObPul...9....1S
Stt1878		Pulkova Observations 9, 1, 1878
Stt1879A	Ma -	Struve, O.	1879Obs.....2..304G
Stt1879A		cited by Gledhill (Obs 2, 304, 1879)
Stt1879B	Ma -	Struve, O.	1879Obs.....3..245G
Stt1879B		cited by Gledhill (Obs 3, 245, 1879)
Stt1879C	Ma -	Struve, O.	1879Obs.....2..344G
Stt1879C		cited by Gledhill (Obs 2, 344, 1879)
Stt1880A	Ma -	Struve, O.	1880Obs.....2..605H
Stt1880A		cited by Hunt (Obs. 3, 605, 1880)
Stt1880B	Ma -	Struve, O.	1880Obs.....3..535G
Stt1880B		cited by Gledhill (Obs 3, 535, 1880)
Stt1880C	Ma -	Struve, O.	1880MNRAS..40..497B
Stt1880C		cited by Burnham (MNRAS 40, 497, 1880)
Stt1884A	Ma -	Struve, O.	1884AReg...22..216S
Stt1884A		cited by Sadler (Astr. Register 22, 216, 1884)
Stt1893a	Ma j	Struve, O.	1893ObPul..10....1S
Stt1893a		Pulkova Obs. Observations 10, 1, 1893
Stt1906A	Ma -	Struve, O.	1906MmRAS..56....1L
Stt1906A		cited by Lewis (MemRAS 56, 1, 1906)
Stt1906B	Ma j	Struve, O.	1906QB821.B972.....
Stt1906B		cited in BDS (Burnham Double Star Cat., 1906)
Stt1908A	Ma -	Struve, O.	1908MNRAS..68..465B
Stt1908A		cited by Barnard (MNRAS 68, 465, 1908)
Stt1913A	Ma -	Struve, O.	1913QB811.B8.......
Stt1913A		cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Stt1914A	Ma -	Struve, O.	1914AN....198..107R
Stt1914A		cited by Rabe (AN 198, 107, 1914)
Stt1932A	Ma -	Struve, O.	1932QB821.A43......
Stt1932A		cited in ADS (Aitken Double Star Cat., 1932)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21090+0643	STT 428		2005	24	256	24.1	8.41	9.93	A5	D	210859.63+064324.5
21090+0643	STT 428		2013	26	255	24.4	8.41	9.93	A5		210859.63+064324.5
21090+0643	STT 428		2015	28	256	24.1	8.41	9.93	F0V+F6V	Y	210859.63+064324.5
21090+0643	STT 428		2019	32	256	24.0	8.41	9.93	F0V+F6V	Y	210859.63+064324.5

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

WDS 21090+0643 STT 428 (HD 201364) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21090+0643 STT 428 (HD 201364) : MEASURES

No records found.

WDS 21090+0643 (HD 201364) : VIRTUAL EYEPIECE

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

WDS 21090+0643 (HD 201364) : ALADIN DSS IMAGE @ 21^h 08^m 59.63^s +06° 43' 24.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21090+0643 STT 428 (HD 201364) : 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		21090+0643	STT 428		256	24.0
Show		21080+0630	SKF2741		40	1.9	20
Show		21093+0618	TDT2789		20	2.0	26
Show		21092+0728	KPP 485		7	5.0	45
Show		21119+0710	BRT2189		273	6.5	51
Show		21117+0715	UC 4399		32	82.7	52
Show		21124+0656	BRT2190		15	3.7	53
Show		21126+0644	KPP 6		61	6.7	54
Show		21096+0550	TDT2793		354	0.5	55
Show		21053+0704	ENG 80	AB	240	64.6	59
Show		21053+0704	ENG 80	AC	106	169.4	59
Show		21089+0741	GRV 424		327	12.1	59
Show		21068+0737	GRV 419		302	38.8	63
Show		21080+0539	HJ 3011	AB	273	10.6	67
Show		21080+0539	BU 9018	AC	252	139.3	67
Show		21080+0539	BU 9018	CD	340	6.0	68
Show		21054+0557	BUP 224		301	30.4	71
Show		21133+0714	UC 4410		319	95.7	71
Show		21135+0713	BU 270	AB	342	0.4	73
Show		21135+0713	S 781	AB,D	172	184.1	73
Show		21135+0713	BU 270	AB,C	26	30.8	73
Show		21128+0729	UC 4405		272	36.1	74
Show		21131+0558	GWP3043	AB	300	81.7	77
Show		21131+0558	GWP3044	AC	139	96.7	77
Show		21139+0715	UC 4413		227	26.9	80
Show		21124+0745	J 576		236	2.3	81
Show		21143+0705	HJ 3015		264	16.3	81
Show		21137+0735	KPP 487		211	3.2	87
Show		21030+0650	GRV 406		287	10.5	89
Show		21141+0729	UC 4414		295	27.0	90
Show		21143+0725	UC 4415			69.1	90
Show		21045+0746	BU 269		239	1.2	91
Show		21059+0803	OSO 140		273	18.7	92
Show		21138+0545	KPP3367		245	1.8	92
Show		21051+0757	HDS3004	AB	252	0.3	94
Show		21051+0757	MET 90	AC	354	4.3	94
Show		21051+0757	MET 90	AD	166	9.8	94
Show		21046+0750	HJ 3008		80	27.0	94
Show		21151+0712	UC 4422		43	16.1	95
Show		21080+0509	STT 527		114	0.4	96
Show		21046+0530	BUP 223		252	82.5	99
Show		21024+0625	TDT2708		27	0.8	101
Show		21094+0502	STT 429		-1	-1.0	102
Show		21021+0703	WSP 90	AB	185	1.0	105
Show		21021+0703	WSP 90	AC	1	9.5	105
Show		21021+0703	WSP 90	AD	83	16.5	105
Show		21022+0711	STF2742		213	3.0	105
Show		21069+0458	UC 4382		272	53.5	111
Show		21144+0807	TDT2847		255	1.9	116
Show		21158+0747	SKF1870		203	43.4	120
Show		21010+0704	HEI 821		90	2.9	121

WDS 21090+0643 : COMPONENTS

	A
B	pa=255.6° sep=23.86"

21090+0643 A

Componente originario normalizzato	AB	Name	HD 201364	Coord arcsec 2000	210859.63+064324.5	Mag	8.41
Spectral class	F0V (yellow-white)	PmRA	-5.00	PmDE	5.0	SAO	126576
HIP	104399	Tycho2	0539-00714-1	HD	201364	BD	BD+06 4759

Tycho2

Tycho2	0539-00714-1	Pflag		RAmdeg	317.24846954	DEmdeg	6.72347426
PmRA	-3.6	PmDE	4.9	E RAmdeg	8	E DEmdeg	9
E pmRA	2.8	E pmDE	2.7	EpRAm	1991.62	EpDEm	1991.50
Num	4	Q RAmdeg	0.9	Q DEmdeg	0.9	Q pmRA	0.9
Q pmDE	0.9	BTmag	8.809	E BTmag	0.020	VTmag	8.413
E VTmag	0.016	Prox	242	TYC	T	HIP	104399
CCDM	A	RAdeg	317.24847778	DEdeg	6.72346306	EpRA 1990	1.73
EpDE 1990	1.64	E RAdeg	7.9	E DEdeg	9.4	Posflg
Corr	0.1

SAO

SAO	126576	DelFlag		RA1950		PmRA1950	-0.0023
DE1950		PmDE1950	0.015	Vmag	8.3	SpType	A5
Double code		Source	32	CatNum	10594	DM	BD+06 4759
DMcomp		BDsup		HD	201364	M HD	0
GC		RA1950rad	5.52623275	DE1950rad	0.11379474	PmRA2000	-0.0022
PmDE2000	0.011

Hipparcos

Catalog	H	HIP	104399	Proxy		RAhms	21 08 59.64
DEdms	+06 43 24.5	Vmag	8.43	VarFlag		R Vmag	G
RAdeg	317.249	DEdeg	6.72346	AstroRef	A	Plx	23.67
CCDM	21090+0643	N CCDM	I	Nsys	2	Ncomp	1
MultFlag	C	Source	P	Qual	A	M HIP
Theta		Rho		HD	201364	BD	BD+06 4759
CD		CP		Dm number	+06 4759	VIred	0.46
SpType	A5	R SpType		Coord arcsec 2000	210859.64+064324.5

Hipparcos 2

HIP	104399	Sn	95	So	3	Nc	1
RArad	5.537030462	DErad	0.1173465377	Plx	7.02	PmRA	-10.51
PmDE	2.9	E RArad	1.05	E DErad	1.09	E Plx	1.38
E pmRA	1.46	E pmDE	1.1	Hpmag	8.5006	E Hpmag	0.0294
SHp	0.025	VA	0	BV	0.393	E BV	0.015
VI	0.46

CCDM

Ccdm	21090+0643	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.39	DDEs	25.1
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.5	Sp	A5	PmNote	*
PmRA	-9	PmDE	18	Dm number	+06 4759	Cat1	BD
Name2	+06 2893	Cat2	AGK2/3	HD	201364	M HD
ADS BDS	B10766	M ADS BDS		N IDS		IDS	21041N0618A
HIC	104399

21090+0643 B

Componente originario normalizzato	AB	Coord arcsec 2000	210858.08+064318.6	Mag	9.93	Spectral class	F6V (yellow-white)
PmRA	-46.00	PmDE	8.0	HIP	104397	Tycho2	0539-00708-1
Calc delta mag	1.52	Calc coord	yes

Tycho2

Tycho2	0539-00708-1	Pflag		RAmdeg	317.24189768	DEmdeg	6.72182058
PmRA	-7.6	PmDE	4.7	E RAmdeg	29	E DEmdeg	30
E pmRA	2.2	E pmDE	2.1	EpRAm	1989.49	EpDEm	1989.06
Num	4	Q RAmdeg	0.7	Q DEmdeg	0.8	Q pmRA	0.7
Q pmDE	0.8	BTmag	10.482	E BTmag	0.050	VTmag	9.926
E VTmag	0.043	Prox	242	TYC		HIP	104397
CCDM	B	RAdeg	317.24191528	DEdeg	6.72181000	EpRA 1990	1.68
EpDE 1990	1.79	E RAdeg	28.7	E DEdeg	31.4	Posflg	D
Corr	0.1

Hipparcos

Catalog	H	HIP	104397	Proxy		RAhms	21 08 58.07
DEdms	+06 43 18.5	Vmag	10.28	VarFlag		R Vmag	H
RAdeg	317.242	DEdeg	6.7218	AstroRef	B	Plx	17.48
CCDM	21090+0643	N CCDM	I	Nsys	2	Ncomp	1
MultFlag	C	Source	I	Qual	A	M HIP
Theta		Rho		HD		BD
CD		CP		Dm number		VIred	0.64
SpType	F8	R SpType		Coord arcsec 2000	210858.07+064318.5

Hipparcos 2

HIP	104397	Sn	95	So	3	Nc	1
RArad	5.5369163071	DErad	0.1173176623	Plx	-2.49	PmRA	1.68
PmDE	-2.92	E RArad	12.27	E DErad	11.18	E Plx	16.33
E pmRA	16.05	E pmDE	11.65	Hpmag	10.2136	E Hpmag	0.108
SHp	0	VA	0	BV	0.572	E BV	0.072
VI	0.64

CCDM

Ccdm	21090+0643	RComp		Comp	B	Note1
Note2		Discov num	STT 428	DRAs	-2.02	DDEs	18.7
R dRAs	10	Year	1866	Theta	256	Rho	24.2
Obs	7	Vmag	10.0	Sp		PmNote	*
PmRA	-26	PmDE	13	Dm number		Cat1
Name2	+06 2892	Cat2	AGK2/3	HD		M HD
ADS BDS	B10766	M ADS BDS	N	N IDS		IDS	21041N0618B
HIC	104397