21173+3457 TDT 2886

21^h 17^m 17.83^s +34° 57' 04.3" P.A. 82.00 sep 0.5 mag 11.41,11.59

Coord 2000	21173+3457	Discov num	TDT2886	Comp		Coord arcsec 2000	21 17 17.83 +34 57 04.3
Date first	1991	Date last	1991	Obs	1
Pa first	82	Pa last	81.7	P.A. Now (θ)	81.7°
Sep first	0.5	Sep last	0.48	Sep. Now (ρ)	0.48"
Mag pri	11.41	Mag sec	11.59	delta mag (ΔM)	0.18	Spectral class
Pri motion ra	-001	Sec motion ra	-001
Pri motion dec	-008	Sec motion dec	-008
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2710-00750-1

Gaia DR2

1867363067761296512

WDS 21173+3457 TDT 2886 : 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
21173+3457	TDT2886		1991	1	82	0.5	11.41	11.59			211717.83+345704.3

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WDS 21173+3457 TDT 2886 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21173+3457 TDT 2886 : MEASURES

No records found.

WDS 21173+3457 : VIRTUAL EYEPIECE

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WDS 21173+3457 : ALADIN DSS IMAGE @ 21^h 17^m 17.83^s +34° 57' 04.3"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21173+3457 TDT 2886 : 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		21173+3457	TDT2886		82	0.5
Show		21179+3454	STT 433	BC	141	13.2	9
Show		21179+3454	STT 433	AB	219	15.2	9
Show		21179+3454	SLE 382	AD	307	57.1	9
Show		21179+3454	STT 433	AC	184	22.1	9
Show		21179+3454	BU 9011	AE	67	34.4	9
Show		21181+3500	SLE 383		58	15.1	11
Show		21183+3456	FYM 142	GH	69	7.9	12
Show		21183+3456	FYM 142	DF	268	8.6	13
Show		21183+3456	BU 289	AB	128	0.8	13
Show		21183+3456	BU 289	AC	251	13.0	13
Show		21183+3456	SLE 384	AD	189	43.3	13
Show		21183+3456	FYM 142	AE	94	36.7	13
Show		21183+3456	FYM 142	AG	272	68.8	13
Show		21183+3456	FYM 142	AF	200	45.9	13
Show		21183+3456	FYM 142	AH	274	61.5	13
Show		21183+3456	FYM 142	EI	273	9.1	14
Show		21156+3512	TDT2863		205	2.5	26
Show		21186+3430	HU 769		178	0.9	32
Show		21171+3530	SLE 378		27	11.3	34
Show		21159+3428	SLE 377		50	8.7	34
Show		21177+3423	SLE 381		279	9.6	35
Show		21197+3518	SLE 386	AB	113	11.8	37
Show		21197+3518	SLE 386	AC	298	15.0	37
Show		21197+3518	SLE 386	AD	310	35.1	37
Show		21145+3437	HU 768		120	1.5	40
Show		21140+3504	ES 2258		178	3.0	42
Show		21138+3500	J 3128	AB	51	5.0	44
Show		21138+3500	J 3128	AC	93	15.0	44
Show		21190+3418	COU 131		195	3.9	45
Show		21139+3513	TDT2841		302	1.9	46
Show		21147+3529	TDT2852		79	1.4	46
Show		21146+3423	SLE 374		2	5.2	48
Show		21171+3546	BU 162	AB	253	1.2	50
Show		21171+3546	BU 162	AC	131	15.6	50
Show		21192+3411	SLE 385		175	12.8	53
Show		21203+3535	TDT2911		102	1.5	53
Show		21161+3548	SEI1483		206	10.2	54
Show		21180+3405	RAO 621		293	1.1	54
Show		21152+3544	SEI1475		266	5.5	54
Show		21143+3418	STTA216		47	102.4	54
Show		21214+3517	GRV 454		168	48.6	55
Show		21206+3420	JNN 129		213	0.1	56
Show		21149+3546	SEI1467		129	4.9	58
Show		21130+3430	TDT2831		37	0.8	60
Show		21149+3407	J 3129	AB	323	4.7	61
Show		21149+3407	J 3129	AC	149	11.5	61
Show		21217+3436	COU1334		148	0.8	61
Show		21123+3453	SLE 370	AB	266	9.8	62
Show		21123+3453	SLE 370	AC	199	16.2	62
Show		21218+3528	TDT2923		79	1.4	64

WDS 21173+3457 : COMPONENTS

	A
B	pa=79.9° sep=0.40"

21173+3457 A

Componente originario normalizzato	AB		Coord arcsec 2000	211717.83+345704.3		Mag	11.41		PmRA	-1.00
PmDE	-8.0		Tycho2	2710-00750-1

Tycho2

Tycho2	2710-00750-1	Pflag		RAmdeg	319.32434820	DEmdeg	34.95120080
PmRA	-1.1	PmDE	-8.2	E RAmdeg	25	E DEmdeg	24
E pmRA	3.6	E pmDE	3.9	EpRAm	1988.54	EpDEm	1988.98
Num	5	Q RAmdeg	1.2	Q DEmdeg	0.9	Q pmRA	1.2
Q pmDE	0.9	BTmag	11.417	E BTmag	0.048	VTmag	10.823
E VTmag	0.045	Prox	999	TYC	T	HIP
CCDM		RAdeg	319.32434278	DEdeg	34.95122056	EpRA 1990	1.67
EpDE 1990	1.65	E RAdeg	29.6	E DEdeg	27.6	Posflg
Corr	0.1

21173+3457 B

Componente originario normalizzato	AB		Coord arcsec 2000	211717.86+345704.4		Mag	11.59		PmRA	-1.00
PmDE	-8.0		Calc delta mag	0.18		Calc coord	yes