20569+4122 LDS 2471

20^h 56^m 51.93^s +41° 22' 18.2" P.A. 43.00 sep 3.2 mag 18.30,19.50

Coord 2000	20569+4122	Discov num	LDS2471	Comp		Coord arcsec 2000	20 56 51.93 +41 22 18.2
Date first	1954	Date last	2015	Obs	3
Pa first	59	Pa last	42.6	P.A. Now (θ)	42.6°
Sep first	3.0	Sep last	3.238	Sep. Now (ρ)	3.238"
Mag pri	18.30	Mag sec	19.50	delta mag (ΔM)	1.2	Spectral class
Pri motion ra	+014	Sec motion ra
Pri motion dec	-027	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

2065624320118172288

WDS 20569+4122 LDS 2471 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
LDS		Luyten p.m. catalog (from additional DD list)	...................

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
20569+4122	LDS2471		1998	2	45	3.3	18.30	19.50		D	205651.93+412218.2
20569+4122	LDS2471		2015	3	43	3.2	18.30	19.50			205651.93+412218.2

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WDS 20569+4122 LDS 2471 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20569+4122 LDS 2471 : MEASURES

No records found.

WDS 20569+4122 : VIRTUAL EYEPIECE

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WDS 20569+4122 : ALADIN DSS IMAGE @ 20^h 56^m 51.93^s +41° 22' 18.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20569+4122 LDS 2471 : 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		20569+4122	LDS2471		43	3.2
Show		20572+4110	HDS2986		176	0.1	13
Show		20585+4121	BLL 53		352	169.0	18
Show		20555+4112	ES 1686		196	7.7	19
Show		20576+4058	A 400		69	1.9	26
Show		20542+4111	ES 1684		277	7.9	33
Show		20539+4115	KPP1503		94	11.3	34
Show		20539+4139	BRT2280		192	5.0	38
Show		20581+4043	COU2430	AB	254	0.4	42
Show		20581+4043	COU2430	AB,C	176	3.0	42
Show		20534+4139	ES 1574		158	1.4	43
Show		20546+4042	ES 1685	BC	74	2.8	48
Show		20546+4042	ES 1685	AB	73	24.2	48
Show		20544+4042	STT 420		2	5.8	50
Show		20525+4138	LDS2463		151	27.8	53
Show		20547+4211	CVR 233		235	61.5	55
Show		20553+4218	OSO 137	AB	116	10.8	59
Show		20553+4218	OSO 137	AC	225	11.6	59
Show		20553+4218	OSO 137	AD	276	14.3	59
Show		20553+4218	OSO 137	AE	295	14.9	59
Show		20553+4218	OSO 137	AF	137	16.8	59
Show		20553+4218	OSO 137	AG	346	25.0	59
Show		20519+4140	COU2428		113	0.7	59
Show		21027+4130	LDS2482		53	3.0	60
Show		20550+4219	LDS2467		193	20.0	61
Show		20534+4208	LDS2464		331	43.8	61
Show		20516+4106	ES 1683		205	5.2	62
Show		20514+4134	LDS2460		195	8.4	64
Show		21019+4055	TDT2704		316	1.1	64
Show		21023+4139	ROE 21		224	9.1	65
Show		20510+4125	COU2427		312	0.5	66
Show		20509+4123	LDS2458		123	14.1	67
Show		21002+4027	TDT2688		104	0.5	67
Show		21014+4037	HDS2995		97	0.1	69
Show		20508+4120	TDT2575		4	2.6	69
Show		20598+4225	CLZ 78		347	38.2	71
Show		20553+4231	STT 423		76	2.7	71
Show		20569+4233	GRV 399		6	64.8	71
Show		21032+4131	LDS2484		33	8.7	72
Show		20599+4016	HDS2989	Da,Db	143	0.1	73
Show		20599+4016	RAO 72	DE	118	19.8	73
Show		20511+4051	TDT2578		81	2.6	73
Show		20599+4016	COU2431	Aa,Ab	205	2.2	76
Show		20599+4016	ENG 79	AB	219	165.9	76
Show		20599+4016	LEP 98	AD	258	999.9	76
Show		20599+4016	BUP 221	AC	154	210.3	76
Show		20599+4016	LSC 1	Aa1,2	257	0.0	76
Show		20526+4024	GRV 391		144	59.5	76
Show		20599+4016	BUP 221	BC	107	203.7	77
Show		20599+4016	SEI1363	CR	37	8.7	79
Show		20556+4004	TDT2634		54	1.9	80

WDS 20569+4122 : COMPONENTS

	A
B	pa=34.6° sep=2.90"

20569+4122 A

Componente originario normalizzato	AB		Coord arcsec 2000	205651.93+412218.2		Mag	18.3		PmRA	14.00
PmDE	-27.0

20569+4122 B

Componente originario normalizzato	AB		Coord arcsec 2000	205652.08+412220.6		Mag	19.5		Calc delta mag	1.2
Calc coord	yes