20213+3035 WJD 1

20^h 21^m 17.50^s +30° 34' 41.2" P.A. 262.00 sep 8.8 mag 11.06,13.50 Sp M4III

Coord 2000	20213+3035	Discov num	WJD 1	Comp		Coord arcsec 2000	20 21 17.50 +30 34 41.2
Date first	2000	Date last	2015	Obs	8
Pa first	264	Pa last	261.9	P.A. Now (θ)	261.9°
Sep first	9.2	Sep last	8.834	Sep. Now (ρ)	8.834"
Mag pri	11.06	Mag sec	13.50	delta mag (ΔM)	2.44	Spectral class	M4III (red)
Pri motion ra	+004	Sec motion ra
Pri motion dec	+000	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2672-01449-1

Gaia DR2

1861588020387732992

WDS 20213+3035 WJD 1 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
WJD2001a	C -	West, J.D.	...................
WJD2001a		Webb Soc., Double Star Circ. 9, 2001
WJD2001b	C u	West, J.D.	2001DSO.....7....3W
WJD2001b		Double Star Observer 7, #3, 2001
WJD2002a	C -	West, J.D.	2002DSO.....8....1W
WJD2002a		Double Star Observer 8, #1, 2002
WJD2002b	C -	West, J.D.	...................
WJD2002b		Webb Soc., Double Star Circ. 10, 2002
WJD2003a	C u	West, J.D.	2003DSO.....9...26W
WJD2003a	+Po	Double Star Observer 9, #3, 26, 2003
WJD2003b	C u	West, J.D.	...................
WJD2003b		Webb Soc., Double Star Circ. 11, 2003
WJD2004	C u	West, J.D.	...................
WJD2004		Webb Soc., Double Star Circ. 12, 2004

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20213+3035	WJD 1		2002	2	255	8.1	11.06	13.50			202117.50+303441.2
20213+3035	WJD 1		2009	3	262	8.3	11.06	13.50			202117.50+303441.2
20213+3035	WJD 1		2015	8	262	8.8	11.06	13.50	M4III		202117.50+303441.2

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

WDS 20213+3035 WJD 1 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20213+3035 WJD 1 : MEASURES

No records found.

WDS 20213+3035 : VIRTUAL EYEPIECE

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

WDS 20213+3035 : ALADIN DSS IMAGE @ 20^h 21^m 17.50^s +30° 34' 41.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20213+3035 WJD 1 : 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		20213+3035	WJD 1		262	8.8
Show		20215+3035	BU 1259	Ba,Bb	191	0.2	2
Show		20215+3035	BU 1259	BC	356	10.3	2
Show		20215+3035	ARY 4	AB	287	134.9	3
Show		20219+3017	TDT2209		51	1.7	20
Show		20231+3036	ES 362	BC	270	5.1	24
Show		20231+3036	ES 362	AB	232	10.8	24
Show		20211+3104	TDT2200		55	1.2	30
Show		20222+3105	TDT2211		354	2.4	33
Show		20234+3053	ARG 91		175	20.8	33
Show		20225+3004	TDT2216		133	0.5	34
Show		20223+3110	BRT1954		278	4.8	39
Show		20217+3112	BRT 279		125	3.8	40
Show		20234+3007	J 1772		98	2.4	40
Show		20222+3115	A 1208		161	0.2	43
Show		20188+3102	HDS2902		296	1.7	43
Show		20196+2956	A 1207		351	0.6	45
Show		20222+3118	RAO 430		289	2.6	45
Show		20248+3033	ES 363		277	3.1	46
Show		20250+3034	HDS2921		358	0.8	49
Show		20223+2946	TDT2213		229	1.0	51
Show		20242+2958	HDS2916	Aa,Ab	223	0.2	53
Show		20242+2958	FMR 87	AB	50	1.4	53
Show		20242+2958	FMR 87	AC	117	7.8	53
Show		20257+3022	COU1324		202	3.0	58
Show		20245+3120	TDT2244		281	0.4	62
Show		20179+2945	TDT2149		316	0.8	66
Show		20227+2930	TDT2218		292	0.4	68
Show		20240+2935	TDT2237		155	0.8	70
Show		20176+3130	SEI1066		312	8.3	73
Show		20176+3132	TDS1057		339	1.7	75
Show		20169+3130	HO 588	AB	297	50.8	80
Show		20265+3117	TDT2272		352	2.3	80
Show		20169+3130	HO 588	BC	30	8.7	80
Show		20244+2923	HO 457	AB	61	2.0	83
Show		20244+2923	HO 457	AC	268	28.0	83
Show		20251+3141	ES 2434		287	4.3	83
Show		20152+3006	TDT2121		11	2.0	84
Show		20191+2915	COU1477		102	0.6	85
Show		20190+3155	TDT2162		269	1.8	86
Show		20279+3047	RAO 520		-1	0.2	86
Show		20269+3121	TDT2280		334	0.5	86
Show		20173+2926	TDT2142		316	1.0	86
Show		20177+2922	TDT2145		186	0.7	87
Show		20167+2932	OSO 121	AB	165	13.2	88
Show		20167+2932	OSO 121	AC	283	15.2	88
Show		20167+2932	OSO 121	AD	190	18.9	88
Show		20167+2932	OSO 121	AE	259	25.2	88
Show		20200+3201	SEI1085		105	11.0	88
Show		20198+3203	TDS1060		230	1.0	91
Show		20282+3024	HJ 1517		105	13.1	91

WDS 20213+3035 : COMPONENTS

	A
B	pa=260.6° sep=7.63"

20213+3035 A

Componente originario normalizzato	AB		Coord arcsec 2000	202117.50+303441.2		Mag	11.06		Spectral class	M4III (red)
PmRA	4.00		PmDE	0.0		Tycho2	2672-01449-1

Tycho2

Tycho2	2672-01449-1	Pflag		RAmdeg	305.32293034	DEmdeg	30.57811720
PmRA	0.1	PmDE	0.5	E RAmdeg	70	E DEmdeg	56
E pmRA	2.6	E pmDE	2.5	EpRAm	1981.92	EpDEm	1985.24
Num	4	Q RAmdeg	1.0	Q DEmdeg	0.7	Q pmRA	1.0
Q pmDE	0.7	BTmag	12.372	E BTmag	0.176	VTmag	11.064
E VTmag	0.074	Prox	865	TYC		HIP
CCDM		RAdeg	305.32293611	DEdeg	30.57812000	EpRA 1990	1.55
EpDE 1990	1.78	E RAdeg	79.1	E DEdeg	60.9	Posflg
Corr	0.2

20213+3035 B

Componente originario normalizzato	AB		Coord arcsec 2000	202116.92+303440.0		Mag	13.5		Calc delta mag	2.44
Calc coord	yes