20251+4220 TDT 2252

20^h 25^m 05.26^s +42° 19' 34.7" P.A. 347.00 sep 1.8 mag 10.74,11.78

Coord 2000	20251+4220	Discov num	TDT2252	Comp		Coord arcsec 2000	20 25 05.26 +42 19 34.7
Date first	1991	Date last	1991	Obs	1
Pa first	347	Pa last	347.1	P.A. Now (θ)	347.1°
Sep first	1.8	Sep last	1.75	Sep. Now (ρ)	1.75"
Mag pri	10.74	Mag sec	11.78	delta mag (ΔM)	1.04	Spectral class
Pri motion ra	-003	Sec motion ra	-003
Pri motion dec	-007	Sec motion dec	-007
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3160-01797-1

Gaia DR2

2068866612412219264

WDS 20251+4220 TDT 2252 : 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
20251+4220	TDT2252		1991	1	347	1.8	10.74	11.78			202505.26+421934.7

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WDS 20251+4220 TDT 2252 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20251+4220 TDT 2252 : MEASURES

No records found.

WDS 20251+4220 : VIRTUAL EYEPIECE

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WDS 20251+4220 : ALADIN DSS IMAGE @ 20^h 25^m 05.26^s +42° 19' 34.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20251+4220 TDT 2252 : 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		20251+4220	TDT2252		347	1.8
Show		20248+4223	ES 1678		187	6.6	5
Show		20256+4155	ARG 92	AB	309	41.7	26
Show		20276+4202	HDS2928		15	0.2	34
Show		20269+4246	TDT2279		60	0.9	34
Show		20229+4243	A 289	AB	154	3.9	35
Show		20229+4243	A 289	AC	351	70.5	35
Show		20269+4152	A 293		119	1.4	35
Show		20238+4146	COU2641		279	1.0	36
Show		20273+4255	HDS2926		351	0.1	44
Show		20229+4259	STTA207	CD	162	56.1	46
Show		20229+4259	HO 128	AB	357	1.4	47
Show		20229+4259	STTA207	AC	65	85.8	47
Show		20256+4132	COU2643		108	0.5	47
Show		20213+4155	TDT2201		359	0.6	49
Show		20254+4129	COU2642		321	0.7	51
Show		20219+4257	BRT2262		129	2.5	52
Show		20276+4303	HDS2927		292	0.2	52
Show		20275+4307	TDT2289		346	2.0	55
Show		20264+4125	A 292		134	2.1	57
Show		20229+4311	L 34		174	4.5	58
Show		20302+4210	TDT2325		261	2.0	58
Show		20300+4149	J 130		265	2.5	63
Show		20298+4143	GRV 344		34	20.5	64
Show		20215+4127	TDT2203		225	0.7	67
Show		20197+4151	MMA 3		105	11.0	67
Show		20212+4128	A 287		132	1.5	68
Show		20189+4227	HJ 1503		73	16.9	69
Show		20311+4203	CAN 2	Aa,Ab	258	0.3	70
Show		20311+4203	CAN 25	AB	221	4.2	70
Show		20188+4244	HO 124		357	0.9	74
Show		20307+4137	CAN 1	Aa,Ab	91	0.3	76
Show		20307+4137	CAN 28	AB	336	2.6	76
Show		20307+4137	CAN 28	AC	342	6.0	76
Show		20307+4137	CAN 28	AD	168	7.0	76
Show		20307+4137	CAN 28	AE	337	7.8	76
Show		20307+4137	CAN 28	AF	20	8.2	76
Show		20307+4137	CAN 28	AG	158	9.0	76
Show		20307+4137	CAN 28	AH	284	9.2	76
Show		20307+4137	CAN 28	AI	44	10.1	76
Show		20307+4137	CAN 28	AJ	118	10.1	76
Show		20307+4137	CAN 28	AK	14	10.2	76
Show		20307+4137	CAN 28	AL	104	10.3	76
Show		20307+4137	CAN 28	AM	77	12.0	76
Show		20307+4137	CAN 28	AN	2	13.4	76
Show		20307+4137	CAN 28	AO	281	13.8	76
Show		20283+4113	TDT2305		227	0.7	76
Show		20210+4320	TDT2198		3	1.8	76
Show		20274+4107	TDT2288		181	2.5	78
Show		20195+4307	TDS1059		117	0.9	78
Show		20205+4122	LI 5	AB	145	8.8	78

WDS 20251+4220 : COMPONENTS

	A
B	pa=350.4° sep=1.73"

20251+4220 A

Componente originario normalizzato	AB		Coord arcsec 2000	202505.26+421934.7		Mag	10.74		PmRA	-3.00
PmDE	-7.0		Tycho2	3160-01797-1

Tycho2

Tycho2	3160-01797-1	Pflag		RAmdeg	306.27190189	DEmdeg	42.32630534
PmRA	-2.8	PmDE	-6.5	E RAmdeg	29	E DEmdeg	31
E pmRA	1.2	E pmDE	1.2	EpRAm	1985.82	EpDEm	1984.63
Num	4	Q RAmdeg	0.5	Q DEmdeg	1.1	Q pmRA	0.5
Q pmDE	1.1	BTmag	10.963	E BTmag	0.046	VTmag	10.839
E VTmag	0.063	Prox	999	TYC	T	HIP
CCDM		RAdeg	306.27191056	DEdeg	42.32632000	EpRA 1990	1.66
EpDE 1990	1.80	E RAdeg	30.3	E DEdeg	32.1	Posflg
Corr	0.0

20251+4220 B

Componente originario normalizzato	AB		Coord arcsec 2000	202505.23+421936.4		Mag	11.78		PmRA	-3.00
PmDE	-7.0		Calc delta mag	1.04		Calc coord	yes