20447+3146 TDT 2513

20^h 44^m 41.81^s +31° 46' 10.2" P.A. 329.00 sep 0.6 mag 11.78,11.97

Coord 2000	20447+3146	Discov num	TDT2513	Comp		Coord arcsec 2000	20 44 41.81 +31 46 10.2
Date first	1991	Date last	1991	Obs	1
Pa first	329	Pa last	329.2	P.A. Now (θ)	329.2°
Sep first	0.6	Sep last	0.57	Sep. Now (ρ)	0.57"
Mag pri	11.78	Mag sec	11.97	delta mag (ΔM)	0.19	Spectral class
Pri motion ra	-002	Sec motion ra	-002
Pri motion dec	-009	Sec motion dec	-009
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2687-00289-1

Gaia DR2

1859834333694811008

WDS 20447+3146 TDT 2513 : NOTES

No records found.

REFERENCES

No records found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20447+3146	TDT2513		1991	1	329	0.6	11.78	11.97			204441.81+314610.2

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WDS 20447+3146 TDT 2513 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20447+3146 TDT 2513 : MEASURES

No records found.

WDS 20447+3146 : VIRTUAL EYEPIECE

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WDS 20447+3146 : ALADIN DSS IMAGE @ 20^h 44^m 41.81^s +31° 46' 10.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20447+3146 TDT 2513 : 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		20447+3146	TDT2513		329	0.6
Show		20452+3146	ARY 86		22	78.4	7
Show		20437+3137	LDS2929		219	2.5	16
Show		20464+3155	TDT2532		127	1.8	24
Show		20435+3127	TDT2499		80	0.4	25
Show		20439+3119	ES 366		128	4.4	29
Show		20435+3212	KPP1637		224	12.6	31
Show		20470+3156	GYL 71		46	24.4	31
Show		20423+3202	TDT2482		314	0.7	34
Show		20471+3210	ARY 61		237	99.4	40
Show		20419+3210	TDT2479		316	1.1	44
Show		20455+3102	A 1211		242	3.6	46
Show		20416+3117	TDT2474		224	1.7	50
Show		20487+3159	ES 369		316	7.1	54
Show		20452+3240	TDT2517		144	1.6	55
Show		20487+3124	TDT2555		188	0.9	56
Show		20491+3148	ES 370		44	7.7	57
Show		20410+3218	BNU 7	Aa,Ab	19	0.2	57
Show		20410+3218	STF2716	AB	45	2.8	57
Show		20410+3218	STF2716	AC	93	67.1	57
Show		20437+3243	COU1633	Aa,Ab	239	1.9	58
Show		20437+3243	ES 2376	AB	124	7.6	58
Show		20408+3115	TDT2468		247	1.9	59
Show		20399+3154	TDT2456		18	0.7	62
Show		20419+3054	TDT2480		147	0.6	64
Show		20478+3057	ES 368		359	3.1	64
Show		20456+3043	STF2726		74	5.8	65
Show		20493+3217	LDS2931	AB	246	34.4	66
Show		20493+3217	HLA 28	AC	125	5.3	66
Show		20493+3113	TDS1101		231	1.2	68
Show		20492+3111	LDS2930		273	22.2	68
Show		20491+3230	GYL 70		188	61.2	72
Show		20414+3049	TDS1091		350	0.8	72
Show		20469+3252	ARG 93		87	10.9	72
Show		20503+3151	TDT2570		262	3.2	72
Show		20422+3254	RAO 441		43	3.2	75
Show		20484+3049	TDT2552		124	2.3	75
Show		20410+3047	TDT2470		181	2.5	76
Show		20483+3247	TDT2550		132	0.9	77
Show		20435+3302	GRV 372		109	17.3	78
Show		20477+3258	COU1634		61	0.4	82
Show		20391+3103	J 1238		18	3.6	83
Show		20460+3308	GYL 69		357	26.7	84
Show		20384+3215	TDT2445		224	2.5	85
Show		20448+3022	AG 410		187	19.0	85
Show		20401+3044	TDT2457	Aa,Ab	139	0.9	86
Show		20401+3044	ROE 15	AB	249	7.6	86
Show		20401+3044	ROE 15	AC	257	30.4	86
Show		20376+3138	COU1328		35	2.8	92
Show		20506+3055	BU 67	AB	311	1.5	92
Show		20506+3055	GII 293	Aa,Ab	137	0.1	92

WDS 20447+3146 : COMPONENTS

	A
B	pa=333.1° sep=0.55"

20447+3146 A

Componente originario normalizzato	AB		Coord arcsec 2000	204441.81+314610.2		Mag	11.78		PmRA	-2.00
PmDE	-9.0		Tycho2	2687-00289-1

Tycho2

Tycho2	2687-00289-1	Pflag		RAmdeg	311.17418146	DEmdeg	31.76953976
PmRA	-2.2	PmDE	-8.6	E RAmdeg	30	E DEmdeg	26
E pmRA	1.9	E pmDE	1.9	EpRAm	1988.53	EpDEm	1989.48
Num	4	Q RAmdeg	0.3	Q DEmdeg	0.9	Q pmRA	0.3
Q pmDE	0.9	BTmag	11.377	E BTmag	0.044	VTmag	11.139
E VTmag	0.054	Prox	999	TYC	T	HIP
CCDM		RAdeg	311.17418694	DEdeg	31.76955972	EpRA 1990	1.65
EpDE 1990	1.73	E RAdeg	31.4	E DEdeg	26.4	Posflg
Corr	0.3

20447+3146 B

Componente originario normalizzato	AB		Coord arcsec 2000	204441.79+314610.7		Mag	11.97		PmRA	-2.00
PmDE	-9.0		Calc delta mag	0.19		Calc coord	yes