21161+4444 MCN 2

21^h 16^m 06.80^s +44° 44' 07.2" P.A. 303.00 sep 16.0 mag 12.70,13.50 Sp M2.5V+M0V

Coord 2000	21161+4444	Discov num	MCN 2	Comp		Coord arcsec 2000	21 16 06.80 +44 44 07.2
Date first	1954	Date last	2010	Obs	6
Pa first	309	Pa last	303.1	P.A. Now (θ)	303.1°
Sep first	16.8	Sep last	16	Sep. Now (ρ)	16"
Mag pri	12.70	Mag sec	13.50	delta mag (ΔM)	0.8	Spectral class	M2.5V+M0V (red/red)
Pri motion ra	-009	Sec motion ra	-009
Pri motion dec	+000	Sec motion dec	-002
Notes	V (Proper motion indicates physical)

rPM=0.217 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

WDS 21161+4444 MCN 2 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Mcn2015	C j	Maccarini, L.	.
Mcn2015		Il Bollettino Delle Stelle Doppie 13, 4, 2015
Mcn2015b	C j	Maccarini, L.	.
Mcn2015b		Il Bollettino Delle Stelle Doppie 14, 5, 2015
Mcn2015c	C j	Maccarini, L.	.
Mcn2015c		Il Bollettino Delle Stelle Doppie 15, 5, 2015
Mcn2016	C -	Maccarini, L.	.
Mcn2016	+Pp	Il Bollettino Delle Stelle Doppie 16, 26, 2016
Mcn2016b	C j	Maccarini, L.	.
Mcn2016b		Il Bollettino Delle Stelle Doppie 17, 11, 2016
Mcn2016c	C j	Maccarini, L.	.
Mcn2016c		Il Bollettino Delle Stelle Doppie 18, 4, 2016
Mcn2017a	P -	Maccarini, L.	.
Mcn2017a	+E+	Il Bollettino Delle Stelle Doppie 20, 4, 2017
Mcn2017a	+Hw
Mcn2017b	C j	Maccarini, L.	.
Mcn2017b		Il Bollettino Delle Stelle Doppie 21, 13, 2017
Mcn2018a	C j	Maccarini, L.	.
Mcn2018a		Il Bollettino Delle Stelle Doppie 25, 4, 2018
Mcn2019a	Ag j	Maccarini, L., Scardia, M., Sordiglioni, G. & Zavala, R.T.	2019Obs...139..198M
Mcn2019a		Observatory 139, 198, 2019

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21161+4444	MCN 2		2010	6	303	16.0	12.70	13.50	M2.5V+M0V	V	211606.80+444407.2

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WDS 21161+4444 MCN 2 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21161+4444 MCN 2 : MEASURES

No records found.

WDS 21161+4444 : VIRTUAL EYEPIECE

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WDS 21161+4444 : ALADIN DSS IMAGE @ 21^h 16^m 06.80^s +44° 44' 07.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21161+4444 MCN 2 : 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		21161+4444	MCN 2		303	16.0
Show		21166+4448	ES 97		290	7.5	7
Show		21169+4456	A 885		153	3.9	15
Show		21139+4438	TDT2839		352	1.2	24
Show		21187+4428	LDS2507		182	3.0	28
Show		21136+4433	ES 1333		296	1.6	30
Show		21137+4453	LDS2498		316	13.0	33
Show		21148+4518	TDT2855		1	0.5	37
Show		21183+4514	TDT2893		234	0.6	38
Show		21166+4357	BRT1147			2.6	48
Show		21139+4400	COU2299		33	0.4	50
Show		21120+4419	TDT2816		89	0.3	51
Show		21207+4455	GRV 451		184	52.1	51
Show		21202+4509	LDS2510		345	20.4	52
Show		21185+4357	TRN 32		81	3.8	54
Show		21118+4417	TDT2812		258	0.5	54
Show		21212+4449	ES 1334	AB	307	5.3	55
Show		21154+4539	TDT2860		243	5.6	55
Show		21171+4350	TDT2882		334	0.6	56
Show		21176+4350	COU2301		69	0.5	58
Show		21145+4542	COU2436		266	5.0	61
Show		21217+4434	GRV 455		132	28.9	62
Show		21189+4351	COU2438		254	1.4	62
Show		21108+4417	A 882		228	2.6	63
Show		21205+4528	KRV 9		123	21.2	65
Show		21152+4339	LDS2501		274	11.3	66
Show		21111+4530	BRT1146		344	2.6	71
Show		21099+4422	STF2772		224	12.4	71
Show		21165+4554	HDS3027		48	0.4	71
Show		21121+4543	ES 9005	BD	84	22.3	71
Show		21121+4543	BU 160	BC	115	6.4	71
Show		21121+4543	BU 160	AB	155	57.1	72
Show		21220+4408	HJ 1639		102	10.7	75
Show		21196+4549	TDS1123	AB	63	1.5	75
Show		21142+4556	TDT2846		227	0.5	75
Show		21103+4359	STF2773	AB	112	3.3	78
Show		21103+4359	STF2773	AC	64	20.3	78
Show		21103+4359	STF2773	AD	262	29.4	78
Show		21103+4359	STF2773	AE	149	52.2	78
Show		21103+4359	STF2773	EF	41	10.7	78
Show		21145+4329	J 610		26	3.3	78
Show		21125+4552	ES 1273	AB	295	23.1	78
Show		21125+4552	ES 1273	AC	7	37.7	78
Show		21225+4409	HJ 1640		35	7.4	78
Show		21125+4552	ES 1273	CD	69	3.7	79
Show		21112+4346	ES 1454	BC	285	3.2	79
Show		21122+4549	ES 1272		53	3.8	79
Show		21112+4346	ES 1454	AB	111	66.8	79
Show		21158+4326	TDT2867		305	0.6	79
Show		21101+4359	HJ 1618	AB	174	21.7	79
Show		21101+4359	HJ 1618	BC	132	2.9	79

WDS 21161+4444 : COMPONENTS

	A
B	pa=312.5° sep=12.92"

21161+4444 A

Componente originario normalizzato	AB		Coord arcsec 2000	211606.80+444407.2		Mag	12.7		Spectral class	M2.5V (red)
PmRA	-9.00		PmDE	0.0

21161+4444 B

Componente originario normalizzato	AB		Coord arcsec 2000	211605.91+444415.9		Mag	13.5		Spectral class	M0V (red)
PmRA	-9.00		PmDE	-2.0		Calc delta mag	0.8		Calc coord	yes