21121+4123 LDS 2494

21^h 12^m 60.00^s +41° 23' 00.0" P.A. 212.00 sep 2.0 mag 15.50,16.50

Coord 2000	21121+4123	Discov num	LDS2494	Comp		Coord arcsec 2000	21 12 60.00 +41 23 00.0
Date first	1954	Date last	1954	Obs	1
Pa first	212	Pa last	212	P.A. Now (θ)	212°
Sep first	2.0	Sep last	2	Sep. Now (ρ)	2"
Mag pri	15.50	Mag sec	16.50	delta mag (ΔM)	1	Spectral class
Pri motion ra	+082	Sec motion ra
Pri motion dec	+050	Sec motion dec
Notes	X (Dubious double)

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Coordinate calcolate

Coordinate calculated

yes

WDS 21121+4123 LDS 2494 : 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
21121+4123	LDS2494		1954	1	212	2.0	15.50	16.50		X

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WDS 21121+4123 LDS 2494 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21121+4123 LDS 2494 : MEASURES

No records found.

WDS 21121+4123 : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 21121+4123 : ALADIN DSS IMAGE @ 21^h 12^m 60.00^s +41° 23' 00.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21121+4123 LDS 2494 : 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		21121+4123	LDS2494		212	2.0
Show		21144+4124	LDS2499		320	6.2	16
Show		21115+4115	STT 431	BC	354	57.1	19
Show		21115+4115	STT 431	AB	127	2.6	19
Show		21115+4115	STT 431	AC	356	55.4	19
Show		21143+4109	STT 432		115	1.3	21
Show		21147+4143	POP1231		269	54.6	28
Show		21157+4135	POP 170		75	1.4	34
Show		21140+4051	KPP1300		32	9.9	34
Show		21119+4158	LDS2493		77	60.2	37
Show		21163+4129	ES 1688		147	5.3	38
Show		21164+4110	ES 1689		136	3.3	42
Show		21161+4101	COU2229		278	0.8	42
Show		21139+4042	TDT2840		235	0.7	43
Show		21133+4208	LDS2496		274	45.8	46
Show		21155+4202	HJL1106		183	459.8	48
Show		21169+4140	POP 186	AB	297	10.7	48
Show		21169+4140	POP 186	AC	130	60.7	48
Show		21169+4140	POP 186	CD	93	4.2	49
Show		21092+4152	LDS2491		184	17.0	49
Show		21145+4036	COU2227		193	1.2	50
Show		21129+4033	ES 256		281	4.5	50
Show		21142+4211	COU2226		120	0.3	50
Show		21155+4205	TDT2861		287	2.4	51
Show		21165+4046	ES 1690		101	3.8	54
Show		21109+4034	ES 255		34	4.6	56
Show		21144+4219	ES 1581		50	4.6	59
Show		21082+4055	AG 414		108	5.3	62
Show		21183+4140	COU2302	AB	63	1.3	63
Show		21183+4140	GII 30	AB,C	187	14.1	63
Show		21076+4137	BVD 159		49	4.3	63
Show		21171+4206	TDT2883		112	0.9	64
Show		21138+4228	LDS2497		110	36.7	66
Show		21070+4125	BU 988	AB	223	1.2	68
Show		21070+4125	BU 988	AC	5	9.3	68
Show		21071+4134	HJ 1613		5	16.4	68
Show		21151+4227	COU2228		28	0.5	69
Show		21189+4102	HO 601	AB	176	17.1	70
Show		21189+4102	HO 601	AC	82	56.7	70
Show		21161+4224	ES 1582		134	3.5	71
Show		21153+4017	A 1440		213	1.2	72
Show		21115+4233	COU2225		82	2.1	72
Show		21193+4108	TDT2901		306	0.5	73
Show		21192+4102	HO 602		27	4.2	74
Show		21097+4230	GRV 428		142	40.9	77
Show		21168+4019	TOB 219		212	35.0	77
Show		21170+4020	SEI1487		238	21.2	78
Show		21176+4023	LDS2505		23	4.3	78
Show		21099+4013	COU1968		104	0.2	79
Show		21174+4020	SEI1492		246	24.6	81
Show		21129+4003	LDS2495		173	5.0	81

WDS 21121+4123 : COMPONENTS

	A
B	pa=205.1° sep=1.87"

21121+4123 A

Componente originario normalizzato	AB		Coord arcsec 2000	211260.00+412300.0		Mag	15.5		PmRA	82.00
PmDE	50.0		Calc coord	yes

21121+4123 B

Componente originario normalizzato	AB		Coord arcsec 2000	211259.93+412258.3		Mag	16.5		Calc delta mag	1
Calc coord	yes