21237+3131 GRV 460

21^h 23^m 44.69^s +31° 31' 38.8" P.A. 185.00 sep 52.6 mag 10.20,11.45

Coord 2000	21237+3131	Discov num	GRV 460	Comp		Coord arcsec 2000	21 23 44.69 +31 31 38.8
Date first	1893	Date last	2014	Obs	8
Pa first	195	Pa last	185	P.A. Now (θ)	185°
Sep first	56.5	Sep last	52.55	Sep. Now (ρ)	52.55"
Mag pri	10.20	Mag sec	11.45	delta mag (ΔM)	1.25	Spectral class
Pri motion ra	+027	Sec motion ra	+021
Pri motion dec	-011	Sec motion dec	-012
Notes

rPM=0.209 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

2703-00014-1

Gaia DR2

1853473693272929152

WDS 21237+3131 GRV 460 : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
Grv2004	Eu -	Greaves, J.	2004MNRAS.355..585G
Grv2004		MNRAS 355, 585, 2004
Grv2005a	Es -	Greaves, J.	...................
Grv2005a	+C	Webb Soc., Double Star Circ. 13, 2005 (GRV 973 - 1147)
Grv2005a		(Note: RA for all WDS designations inadvertently truncated to integer minute)
Grv2005b	Pa -	Greaves, J.	...................
Grv2005b		private communication
Grv2005c	C -	Greaves, J.	2005JDSO....1...41G
Grv2005c		JDSO 1, 41, 2005
Grv2006	-	Greaves, J.	...................
Grv2006		private communication, 2006
Grv2006		(measures done using LSPM-north, see Vizier On-line Data Catalog I/298;
Grv2006		Lepine & Shara 2005)
Grv2006b	Es -	Greaves, J.	...................
Grv2006b		private Communication, 2006
Grv2006b		(Reduction of SDSS data. Calculated position is to J2000, but actual observation
Grv2006b		epoch is unknown and proper motion may or may not have been applied.)
Grv2006c	Ey -	Greaves, J.	...................
Grv2006c		private Communication, 2006
Grv2006c		(Reduction of SPM3.3 data. Calculated position is to 1991.25, but actual
Grv2006c		observation epoch is unknown and proper motion may or may not have been applied.)
Grv2008	Es -	Greaves, J.	...................
Grv2008		Webb Soc., Double Star Circ. 16, 2008
Grv2011	C -	Greaves, J.	...................
Grv2011		Webb Soc., Double Star Circ. 19, 2011
Grv2011		These carry a discovery designation of SPM and come from the SPM4 Catalog	2011AJ....142...15G
Grv2019a	Hg u	Greaves, J.	2019JDSO...15...59G
Grv2019a		JDSO 15, 59, 2019
Grv2019b	Hg u	Greaves, J.	2019JDSO...15...77G
Grv2019b		JDSO 15, 59, 2019
Grv2019c	Hg u	Greaves, J.	...................
Grv2019c		private communication, 2019 (17 April 2019 email)
Grv2019d	Hg -	Greaves, J.	.
Grv2019d		private communication, 2019 (4 Nov 2019 email)
Grv2020a	not -	Greaves, J.	.
Grv2020a		private communication, 2020 (14 Mar 2020 email)
Grv2020b	Hg j	Greaves, J.	.
Grv2020b		Webb Soc., Double Star Circ. 28, 23, 2020
Grv2020c	Hg j	Greaves, J.	.
Grv2020c		Webb Soc., Double Star Circ. 28, 35, 2020
Grv2020d	Hg j	Greaves, J.	.
Grv2020d		Webb Soc., Double Star Circ. 28, 39, 2020
Grv2020e	Hg u	Greaves, J.	2020JDSO...16..317G
Grv2020e		JDSO 16, 317, 2020
Grv2020f	Hg	Greaves, J.	2020JDSO...16..362G
Grv2020f		JDSO 16, 362, 2020
Grv2020g	Hg -	Greaves, J.	.
Grv2020g		private communication, 2020 (29 Nov 2020 email)
Grv2020h	Hg -	Greaves, J.	.
Grv2020h		private communication, 2020 (10 Dec 2020 email)
Grv2020i	Hg -	Greaves, J.	.
Grv2020i		private communication, 2020 (12 Dec 2020 email)
Grv2020j	Hg -	Greaves, J.	.
Grv2020j		private communication, 2020 (21 Dec 2020 email)
Grv2021a	not -	Greaves, J.	.
Grv2021a		private communication, 2021 (18 Feb 2021 email)
Grv2021b	not -	Greaves, J.	.
Grv2021b		private communication, 2021 (23 Feb 2021 email)
Grv2021c	Hg+ -	Greaves, J., Rica Romero, F.M. & Otero, S.	2021JDSO...17..137G
Grv2021c	+orb	JDSO 17, 137, 2021
Grv2021d	Hg -	Greaves, J.	.
Grv2021d		private communication, 2021 (23 Aug 2021 email)
Grv2021e	Hg -	Greaves, J.	.
Grv2021e		private communication, 2021 (24 Aug 2021 email)
Grv2022	Hg j	Greaves, J. .
Grv2022		Webb Soc., Double Star Circ. 30, 27, 2022
Grv2023a	Hg -	Greaves, J.	.
Grv2023a		private communication, 2023 (15 Feb 2023 email)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
21237+3131	GRV 460		2000	7	195	56.6	10.20	11.45		D	212344.69+313138.8
21237+3131	GRV 460		2002	8	195	56.6	10.20	11.45		D	212344.69+313138.8
21237+3131	GRV 460		2014	8	185	52.6	10.20	11.45			212344.69+313138.8

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

WDS 21237+3131 GRV 460 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21237+3131 GRV 460 : MEASURES

No records found.

WDS 21237+3131 : VIRTUAL EYEPIECE

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

WDS 21237+3131 : ALADIN DSS IMAGE @ 21^h 23^m 44.69^s +31° 31' 38.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21237+3131 GRV 460 : 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		21237+3131	GRV 460		185	52.6
Show		21231+3144	HDS3046	AB	329	4.8	15
Show		21231+3144	DAM 229	AC	22	14.2	15
Show		21229+3142	GRV 458		123	43.4	16
Show		21234+3115	A 1218		15	4.1	17
Show		21225+3123	KPP1063		321	8.4	18
Show		21252+3129	A 1220		160	1.6	19
Show		21223+3139	ES 377	AB	291	48.7	20
Show		21229+3149	J 2344		227	6.7	20
Show		21223+3139	ES 377	BC	211	2.2	20
Show		21226+3158	HJ 1637	AB	104	13.4	31
Show		21226+3158	DAL 15	AC	142	8.3	31
Show		21230+3202	HO 157		26	3.6	32
Show		21220+3106	KPP3368		41	8.9	34
Show		21219+3104	CRB 141		22	28.8	37
Show		21222+3056	ES 376		221	9.2	41
Show		21205+3107	J 3135		97	4.0	50
Show		21198+3138	GRV 445		278	36.2	51
Show		21275+3158	TDT2977		120	0.5	55
Show		21212+3044	TDT2914		17	2.0	58
Show		21268+3050	A 1221		74	1.2	58
Show		21207+3226	POP 201		203	7.1	67
Show		21208+3227	STT 437	AB	19	2.5	67
Show		21208+3227	STT 437	AC	144	79.6	67
Show		21218+3230	HLM 40		23	15.5	69
Show		21228+3026	RAO 453		291	0.3	70
Show		21281+3214	SOZ 26		11	12.3	70
Show		21257+3241	GYL 55		163	5.8	74
Show		21291+3102	BRT 288		96	4.8	74
Show		21245+3015	A 1219	AB	312	1.5	77
Show		21235+3012	UC 260	AB	243	33.4	80
Show		21203+3240	GRV 449		327	64.2	81
Show		21294+3049	ES 2442		251	6.7	83
Show		21185+3037	FYM 538	AB	192	7.0	84
Show		21185+3037	FYM 538	BC	218	5.7	84
Show		21262+3249	GRV 467		338	60.2	85
Show		21290+3224	ES 378	AB	203	9.5	85
Show		21290+3224	WAL 139	AC	251	41.6	85
Show		21180+3049	COU1183		16	0.3	86
Show		21216+3253	GYL 54		137	22.2	87
Show		21307+3107	J 2351		347	4.7	87
Show		21174+3203	HJ 931		356	9.9	88
Show		21182+3227	GRV 444		250	36.1	90
Show		21171+3203	FOX9054		358	6.1	91
Show		21182+3035	HO 154	AB	211	3.6	91
Show		21182+3035	POP 228	AC	139	9.0	91
Show		21182+3035	NOV 1	AD	162	21.4	91
Show		21182+3035	POP 228	AN	262	64.2	91
Show		21182+3035	NOV 1	AX	142	186.7	91
Show		21182+3035	NOV 1	XL	89	32.2	92
Show		21182+3035	NOV 1	XQ	134	29.2	92

WDS 21237+3131 : COMPONENTS

	A
B	pa=184.3° sep=52.50"

21237+3131 A

Componente originario normalizzato	AB		Coord arcsec 2000	212344.69+313138.8		Mag	10.2		PmRA	27.00
PmDE	-11.0		Tycho2	2703-00014-1

Tycho2

Tycho2	2703-00014-1	Pflag		RAmdeg	320.93619319	DEmdeg	31.52745020
PmRA	24.7	PmDE	-11.9	E RAmdeg	17	E DEmdeg	18
E pmRA	1.5	E pmDE	1.5	EpRAm	1988.67	EpDEm	1988.41
Num	6	Q RAmdeg	1.5	Q DEmdeg	0.9	Q pmRA	1.4
Q pmDE	0.9	BTmag	10.822	E BTmag	0.035	VTmag	10.203
E VTmag	0.028	Prox	566	TYC	T	HIP
CCDM		RAdeg	320.93612472	DEdeg	31.52748083	EpRA 1990	1.58
EpDE 1990	1.55	E RAdeg	18.6	E DEdeg	19.6	Posflg
Corr	0.1

21237+3131 B

Componente originario normalizzato	AB		Coord arcsec 2000	212344.38+313046.4		Mag	11.45		PmRA	21.00
PmDE	-12.0		Tycho2	2703-00111-1		Calc delta mag	1.25		Calc coord	yes

Tycho2

Tycho2	2703-00111-1	Pflag		RAmdeg	320.93126634	DEmdeg	31.51231085
PmRA	19.1	PmDE	-10.6	E RAmdeg	45	E DEmdeg	46
E pmRA	1.8	E pmDE	1.8	EpRAm	1983.81	EpDEm	1982.84
Num	5	Q RAmdeg	0.6	Q DEmdeg	0.5	Q pmRA	0.6
Q pmDE	0.4	BTmag	11.974	E BTmag	0.081	VTmag	11.454
E VTmag	0.077	Prox	566	TYC		HIP
CCDM		RAdeg	320.93121472	DEdeg	31.51233611	EpRA 1990	1.57
EpDE 1990	1.56	E RAdeg	47.3	E DEdeg	49.2	Posflg
Corr	0.1