20257+3609 TDT 2260

20^h 25^m 44.17^s +36° 08' 31.2" P.A. 3.00 sep 2.7 mag 11.50,12.41

Coord 2000	20257+3609	Discov num	TDT2260	Comp		Coord arcsec 2000	20 25 44.17 +36 08 31.2
Date first	1991	Date last	1991	Obs	1
Pa first	3	Pa last	2.9	P.A. Now (θ)	2.9°
Sep first	2.7	Sep last	2.67	Sep. Now (ρ)	2.67"
Mag pri	11.50	Mag sec	12.41	delta mag (ΔM)	0.91	Spectral class
Pri motion ra	-013	Sec motion ra	-013
Pri motion dec	-025	Sec motion dec	-025
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2697-00258-1

Gaia DR2

2057606926149093504

WDS 20257+3609 TDT 2260 : 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
20257+3609	TDT2260		1991	1	3	2.7	11.50	12.41			202544.17+360831.2

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WDS 20257+3609 TDT 2260 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20257+3609 TDT 2260 : MEASURES

No records found.

WDS 20257+3609 : VIRTUAL EYEPIECE

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WDS 20257+3609 : ALADIN DSS IMAGE @ 20^h 25^m 44.17^s +36° 08' 31.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20257+3609 TDT 2260 : 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		20257+3609	TDT2260		3	2.7
Show		20255+3553	A 47		176	1.6	16
Show		20252+3554	SEI1119		212	7.0	17
Show		20260+3549	HDS2922		143	0.6	21
Show		20262+3547	COU2130	Aa,Ab	61	0.5	22
Show		20262+3547	SEI1125	AB	250	19.2	22
Show		20277+3605	ES 2193	AB	334	4.9	25
Show		20277+3605	ES 2193	AC	231	7.4	25
Show		20277+3605	ES 2193	AD	33	12.7	25
Show		20248+3545	BU 432		196	1.5	26
Show		20236+3605	SEI1110		156	11.8	26
Show		20237+3553	SEI1113		341	13.9	29
Show		20235+3618	ES 2191		181	1.9	29
Show		20235+3540	FYM 176	BC	34	8.4	40
Show		20235+3540	SEI1109	AB	111	27.6	40
Show		20232+3542	HJ 1506	AB	204	9.2	42
Show		20232+3542	HJ 1506	AC	194	35.5	42
Show		20232+3542	FYM 177	AD	125	28.9	42
Show		20232+3542	FYM 177	EF	123	9.0	42
Show		20288+3628	COU1958		105	0.5	42
Show		20238+3531	SEI1114		55	18.1	45
Show		20291+3550	HO 594	AB	212	15.9	45
Show		20291+3550	GRF 16	AC	163	104.0	45
Show		20289+3634	SEI1132		226	15.1	47
Show		20247+3523	SEI1117		127	13.1	47
Show		20288+3541	SEI1130		26	11.3	48
Show		20252+3522	SEI1120		217	27.3	48
Show		20251+3522	SEI1118		150	9.4	48
Show		20290+3535	COU1959		323	0.4	52
Show		20228+3647	KPP 4		176	8.5	52
Show		20288+3650	SEI1129		23	29.0	55
Show		20242+3516	ES 2303	AB	23	5.3	55
Show		20242+3516	POP1230	AC	147	45.9	55
Show		20260+3512	COU2129		163	0.1	57
Show		20227+3651	ES 2190		187	1.5	58
Show		20301+3636	SKF2852	BC	83	1.0	60
Show		20255+3708	DAM1041		256	2.8	60
Show		20257+3709	ES 2192		79	2.8	60
Show		20301+3636	KPP4204	AB	213	7.1	60
Show		20301+3636	SKF2852	AC	206	6.5	60
Show		20308+3619	TDS1078		294	1.2	62
Show		20226+3656	ES 2506		150	5.7	62
Show		20243+3507	POP 80		328	2.9	63
Show		20212+3537	ES 28		251	21.6	64
Show		20262+3712	HO 130		289	1.9	64
Show		20305+3540	SEI1142		78	21.7	65
Show		20258+3504	TDT2264		59	1.2	65
Show		20218+3525	TDT2205		351	0.5	65
Show		20205+3623	SEI1092		14	27.3	66
Show		20217+3657	SEI1099		288	6.7	69
Show		20200+3616	BU 431		208	0.5	71

WDS 20257+3609 : COMPONENTS

	A
B	pa=2.3° sep=2.67"

20257+3609 A

Componente originario normalizzato	AB		Coord arcsec 2000	202544.17+360831.2		Mag	11.5		PmRA	-13.00
PmDE	-25.0		Tycho2	2697-00258-1

Tycho2

Tycho2	2697-00258-1	Pflag		RAmdeg	306.43406732	DEmdeg	36.14199451
PmRA	-13.3	PmDE	-24.9	E RAmdeg	40	E DEmdeg	50
E pmRA	6.8	E pmDE	7.5	EpRAm	1984.14	EpDEm	1985.94
Num	3	Q RAmdeg	1.1	Q DEmdeg	0.5	Q pmRA	1.1
Q pmDE	0.5	BTmag	13.141	E BTmag	0.298	VTmag	11.591
E VTmag	0.117	Prox	999	TYC		HIP
CCDM		RAdeg	306.43407917	DEdeg	36.14204611	EpRA 1990	1.59
EpDE 1990	1.67	E RAdeg	92.7	E DEdeg	78.9	Posflg
Corr	0.0

20257+3609 B

Componente originario normalizzato	AB		Coord arcsec 2000	202544.18+360833.9		Mag	12.41		PmRA	-13.00
PmDE	-25.0		Calc delta mag	0.91		Calc coord	yes