21080+3116 LDS 2940

21^h 08^m 02.26^s +31° 16' 14.5" P.A. 222.00 sep 7.6 mag 15.90,19.70

Coord 2000	21080+3116	Discov num	LDS2940	Comp		Coord arcsec 2000	21 08 02.26 +31 16 14.5
Date first	1953	Date last	2016	Obs	14
Pa first	219	Pa last	221.6	P.A. Now (θ)	221.6°
Sep first	7.5	Sep last	7.617	Sep. Now (ρ)	7.617"
Mag pri	15.90	Mag sec	19.70	delta mag (ΔM)	3.8	Spectral class
Pri motion ra	+290	Sec motion ra
Pri motion dec	+127	Sec motion dec
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1852982692622465920

WDS 21080+3116 LDS 2940 : 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
21080+3116	LDS2940		1999	2	199	8.6	15.90	19.70		D	210803.19+311615.1
21080+3116	LDS2940		2015	5	222	7.6	15.90	19.70			210802.26+311614.5
21080+3116	LDS2940		2016	14	222	7.6	15.90	19.70			210802.26+311614.5

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

WDS 21080+3116 LDS 2940 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21080+3116 LDS 2940 : MEASURES

No records found.

WDS 21080+3116 : VIRTUAL EYEPIECE

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WDS 21080+3116 : ALADIN DSS IMAGE @ 21^h 08^m 02.26^s +31° 16' 14.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21080+3116 LDS 2940 : 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		21080+3116	LDS2940		222	7.6
Show		21079+3123	GRV 421		185	14.6	8
Show		21088+3102	ES 375		42	4.5	19
Show		21086+3135	J 2337		349	6.2	20
Show		21093+3131	COU1333		258	0.6	22
Show		21099+3100	HJ 1616	AB	315	10.3	28
Show		21099+3100	GRV 431	AC	16	22.5	28
Show		21073+3048	TDT2766		193	1.9	30
Show		21098+3143	ES 2440		202	5.0	36
Show		21052+3127	GRV 412		265	42.4	38
Show		21074+3038	TDT2767		173	10.5	40
Show		21047+3109	DAM 226		16	4.3	43
Show		21102+3151	SEI1423		226	13.5	45
Show		21046+3116	J 2336		40	9.1	45
Show		21086+3201	KPP 830		310	7.1	46
Show		21050+3109	J 3124		208	4.5	46
Show		21056+3043	TDT2737		322	6.3	46
Show		21064+3031	TDT2751		148	2.4	50
Show		21077+3022	UC 256		67	48.1	55
Show		21092+3023	CBL 90		113	54.5	55
Show		21101+3027	KPP4225		236	2.2	57
Show		21103+3027	TDT2801		237	0.9	58
Show		21037+3130	TDT2721		43	2.1	58
Show		21037+3104	STT 427		153	4.1	58
Show		21078+3214	TDT2773		212	3.3	59
Show		21068+3215	WFC 259		118	10.8	61
Show		21117+3038	J 1235		184	2.8	62
Show		21115+3033	ALD 5		153	3.7	63
Show		21069+3218	TDT2761		236	0.4	64
Show		21068+3222	ES 2439		164	4.3	65
Show		21086+3012	STF2762	AB	303	3.3	65
Show		21086+3012	STF2762	AC	229	59.3	65
Show		21086+3012	STF2762	AD	66	73.1	65
Show		21057+3215	KU 130		57	19.4	66
Show		21104+3215	SEI1425	AB	34	21.4	67
Show		21104+3215	TOB 212	AC	79	24.2	67
Show		21077+3009	KPP1031		334	8.3	68
Show		21133+3100	BRT 286		250	6.6	70
Show		21112+3214	SEI1433		297	9.6	71
Show		21118+3211	SEI1438		93	22.5	73
Show		21025+3146	CRB 15	BD	241	5.6	73
Show		21025+3146	ES 374	BC	203	4.5	73
Show		21031+3039	GRV 407		221	59.2	74
Show		21025+3146	ES 374	AB	137	26.8	74
Show		21065+3227	STF2759		334	19.0	74
Show		21070+3001	J 1319		206	1.7	77
Show		21091+3232	UC 257		38	9.6	78
Show		21020+3107	TDT2706		204	0.6	78
Show		21119+3216	SEI1440		110	17.0	78
Show		21034+3025	SMA 123		145	7.2	78
Show		21026+3041	COU1182		180	1.0	79

WDS 21080+3116 : COMPONENTS

	A
B	pa=217.2° sep=7.15"

21080+3116 A

Componente originario normalizzato	AB		Coord arcsec 2000	210802.26+311614.5		Mag	15.9		PmRA	290.00
PmDE	127.0

21080+3116 B

Componente originario normalizzato	AB		Coord arcsec 2000	210801.92+311608.8		Mag	19.7		Calc delta mag	3.8
Calc coord	yes