21138+4228 LDS 2497

21^h 13^m 39.29^s +42° 27' 37.7" P.A. 110.00 sep 36.7 mag 13.13,15.95

Coord 2000	21138+4228	Discov num	LDS2497	Comp		Coord arcsec 2000	21 13 39.29 +42 27 37.7
Date first	1954	Date last	2015	Obs	8
Pa first	110	Pa last	110.4	P.A. Now (θ)	110.4°
Sep first	36.0	Sep last	36.719	Sep. Now (ρ)	36.719"
Mag pri	13.13	Mag sec	15.95	delta mag (ΔM)	2.82	Spectral class
Pri motion ra	+016	Sec motion ra	+049
Pri motion dec	+021	Sec motion dec	+016
Notes

rPM=0.648

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1969806043594048768

WDS 21138+4228 LDS 2497 : 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
21138+4228	LDS2497		1998	2	111	36.5	14.40	16.70		D	211339.29+422737.7
21138+4228	LDS2497		2002	3	111	36.5	14.40	16.70		D	211339.29+422737.7
21138+4228	LDS2497		2010	4	111	36.5	13.13	15.95			211339.29+422737.7
21138+4228	LDS2497		2015	5	110	36.7	13.13	15.95			211339.29+422737.7

If you need more information about this double, apply for a data request form to the WDS.

WDS 21138+4228 LDS 2497 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21138+4228 LDS 2497 : MEASURES

No records found.

WDS 21138+4228 : VIRTUAL EYEPIECE

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WDS 21138+4228 : ALADIN DSS IMAGE @ 21^h 13^m 39.29^s +42° 27' 37.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21138+4228 LDS 2497 : 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		21138+4228	LDS2497		110	36.7
Show		21144+4219	ES 1581		50	4.6	12
Show		21151+4227	COU2228		28	0.5	17
Show		21142+4211	COU2226		120	0.3	18
Show		21133+4208	LDS2496		274	45.8	20
Show		21115+4233	COU2225		82	2.1	24
Show		21161+4224	ES 1582		134	3.5	28
Show		21155+4205	TDT2861		287	2.4	31
Show		21155+4202	HJL1106		183	459.8	33
Show		21151+4257	COU2300		263	0.3	34
Show		21119+4158	LDS2493		77	60.2	37
Show		21118+4259	STJ 91		271	1.0	38
Show		21108+4249	VKI 40		255	3.8	39
Show		21097+4230	GRV 428		142	40.9	43
Show		21104+4253	BRT1144	BC	309	3.3	44
Show		21104+4253	BRT1144	AB	19	2.9	45
Show		21104+4253	BRT1144	AC	341	5.1	45
Show		21171+4206	TDT2883		112	0.9	45
Show		21147+4143	POP1231		269	54.6	47
Show		21105+4300	VKI 39		236	1.3	48
Show		21099+4257	LDS2492		135	21.5	52
Show		21160+4313	LDS2503		131	4.0	53
Show		21183+4244	HJ 1634		143	28.9	54
Show		21178+4302	A 616		316	2.7	57
Show		21171+4312	A 401		318	0.4	58
Show		21157+4135	POP 170		75	1.4	59
Show		21092+4152	LDS2491		184	17.0	59
Show		21154+4325	LDS2502		172	67.0	60
Show		21169+4140	POP 186	AB	297	10.7	61
Show		21169+4140	POP 186	AC	130	60.7	61
Show		21169+4140	POP 186	CD	93	4.2	62
Show		21145+4329	J 610		26	3.3	62
Show		21158+4326	TDT2867		305	0.6	63
Show		21144+4124	LDS2499		320	6.2	65
Show		21121+4123	LDS2494		212	2.0	66
Show		21163+4129	ES 1688		147	5.3	66
Show		21197+4228	ES 1583	BC	77	6.0	67
Show		21197+4228	ES 1583	AB	238	13.0	67
Show		21197+4228	ABH 144	AD	112	64.4	67
Show		21197+4228	ABH 144	AE	219	27.2	67
Show		21197+4228	ABH 144	AF	245	62.8	67
Show		21197+4228	ABH 144	AG	238	82.9	67
Show		21197+4228	ABH 144	AH	22	41.7	67
Show		21197+4228	ABH 144	AI	117	69.6	67
Show		21197+4228	ABH 144	AJ	112	81.2	67
Show		21197+4228	ABH 144	AK	98	101.4	67
Show		21197+4228	ES 1583	AC	223	7.6	67
Show		21195+4253	FOX 259	AB	307	12.5	69
Show		21183+4140	COU2302	AB	63	1.3	71
Show		21183+4140	GII 30	AB,C	187	14.1	71
Show		21100+4326	ES 1453		67	5.3	71

WDS 21138+4228 : COMPONENTS

	A
B	pa=116.8° sep=28.43"

21138+4228 A

Componente originario normalizzato	AB		Coord arcsec 2000	211339.29+422737.7		Mag	13.13		PmRA	16.00
PmDE	21.0

21138+4228 B

Componente originario normalizzato	AB		Coord arcsec 2000	211341.58+422724.9		Mag	15.95		PmRA	49.00
PmDE	16.0		Calc delta mag	2.82		Calc coord	yes