20459+0211 GRV 377

20^h 45^m 55.90^s +02° 11' 58.6" P.A. 354.00 sep 27.3 mag 12.23,12.05

Coord 2000	20459+0211	Discov num	GRV 377	Comp		Coord arcsec 2000	20 45 55.90 +02 11 58.6
Date first	1909	Date last	2015	Obs	7
Pa first	336	Pa last	353.7	P.A. Now (θ)	353.7°
Sep first	27.8	Sep last	27.28	Sep. Now (ρ)	27.28"
Mag pri	12.23	Mag sec	12.05	delta mag (ΔM)	0.18	Spectral class
Pri motion ra	-023	Sec motion ra	-024
Pri motion dec	-019	Sec motion dec	-020
Notes	V (Proper motion indicates physical)

rPM=0.045 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Aquarius

Tycho2

0516-00701-1

Gaia DR2

4231863677983037952

WDS 20459+0211 GRV 377 : 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
20459+0211	GRV 377		2000	4	336	27.2	11.80	11.90		D	204555.90+021158.6
20459+0211	GRV 377		2010	5	336	27.3	12.23	12.05			204555.90+021158.6
20459+0211	GRV 377		2015	6	336	27.3	12.23	12.05			204555.90+021158.6

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

WDS 20459+0211 GRV 377 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20459+0211 GRV 377 : MEASURES

No records found.

WDS 20459+0211 : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 20459+0211 : ALADIN DSS IMAGE @ 20^h 45^m 55.90^s +02° 11' 58.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20459+0211 GRV 377 : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20459+0211	GRV 377		354	27.3
Show		20455+0201	BAL1571		307	6.8	13
Show		20481+0224	BAL2035		304	12.9	35
Show		20434+0204	GWP2989		131	44.7	39
Show		20472+0247	UC 4286		114	31.3	41
Show		20471+0253	TDT2536		352	1.6	45
Show		20485+0143	RST5471		14	0.6	48
Show		20427+0217	GRV 370		313	25.4	48
Show		20493+0156	OSO 136		109	12.8	54
Show		20431+0253	AG 262		94	5.7	60
Show		20419+0218	UC 252		164	62.6	61
Show		20418+0156	GWP2986		350	16.1	64
Show		20504+0222	GWP3004		12	15.6	68
Show		20413+0216	BAL1569		62	11.2	71
Show		20475+0105	BAL1220		193	21.1	72
Show		20414+0147	BAL1570		12	5.1	73
Show		20424+0304	KPP3360		234	1.5	75
Show		20510+0211	BAL1573		225	5.6	75
Show		20510+0210	BAL1574		21	18.3	75
Show		20419+0258	HJ 2988		142	23.2	76
Show		20414+0244	GWP2984		263	182.0	76
Show		20440+0049	HJ 923		62	7.0	77
Show		20510+0227	BAL2037		2	6.4	78
Show		20433+0059	SLN 39		233	19.0	84
Show		20481+0053	CVR 873		324	12.3	86
Show		20486-0055	BAL 616		206	2.4	87
Show		20409+0128	BAL1568		346	8.8	88
Show		20425+0100	TDT2487		302	1.1	89
Show		20460+0344	BAL2544		14	16.7	92
Show		20441+0044	BAL1218		229	3.4	93
Show		20466+0344	BAL2545		281	11.8	93
Show		20521+0225	TDT2592		183	1.5	93
Show		20521+0205	A 2286	AB	5	0.0	94
Show		20521+0205	A 2286	AB,C	48	1.1	94
Show		20414+0105	GWP2985		352	30.4	95
Show		20393+0219	BAL1567		205	19.3	101
Show		20452+0352	UC 4280		255	36.1	101
Show		20509+0101	TDT2577	Aa,Ab	104	0.5	103
Show		20509+0101	RST5472	AB	77	3.7	103
Show		20400+0118	A 2283	AB	350	2.3	104
Show		20445+0029	BAL1219		214	17.3	106
Show		20525+0130	BAL1575		175	16.6	107
Show		20388+0202	HJ 920		213	14.1	107
Show		20454+0023	A 876		68	0.6	109
Show		20412+0338	BAL2543		33	6.5	113
Show		20472+0021	CBL 529		43	49.8	113
Show		20403+0326	STT 409	AB	84	16.8	113
Show		20403+0326	STT 409	AC	330	62.8	113
Show		20387+0156	J 569		316	3.0	114
Show		20525+0310	GWP3009		237	76.6	115
Show		20389+0128	KPP3420		241	6.3	115

WDS 20459+0211 : COMPONENTS

	A
B	pa=353.7° sep=27.28"

20459+0211 A

Componente originario normalizzato	AB		Coord arcsec 2000	204555.90+021158.6		Mag	12.23		PmRA	-23.00
PmDE	-19.0		Tycho2	0516-00701-1

Tycho2

Tycho2	0516-00701-1	Pflag		RAmdeg	311.48291687	DEmdeg	2.19953873
PmRA	-23.5	PmDE	-23.4	E RAmdeg	81	E DEmdeg	95
E pmRA	2.1	E pmDE	2.3	EpRAm	1962.07	EpDEm	1948.61
Num	3	Q RAmdeg	1.1	Q DEmdeg	0.4	Q pmRA	1.1
Q pmDE	0.3	BTmag	13.032	E BTmag	0.335	VTmag	12.222
E VTmag	0.223	Prox	999	TYC		HIP
CCDM		RAdeg	311.48297222	DEdeg	2.19959528	EpRA 1990	1.67
EpDE 1990	1.29	E RAdeg	101.2	E DEdeg	136.6	Posflg
Corr	-0.1

20459+0211 B

Componente originario normalizzato	AB		Coord arcsec 2000	204555.70+021225.7		Mag	12.05		PmRA	-24.00
PmDE	-20.0		Calc delta mag	0.18		Calc coord	yes