20198+0716 GRV 331

20^h 19^m 52.45^s +07° 16' 57.6" P.A. 323.00 sep 47.5 mag 12.04,13.25

Coord 2000	20198+0716	Discov num	GRV 331	Comp		Coord arcsec 2000	20 19 52.45 +07 16 57.6
Date first	1919	Date last	2015	Obs	8
Pa first	324	Pa last	322.8	P.A. Now (θ)	322.8°
Sep first	47.6	Sep last	47.548	Sep. Now (ρ)	47.548"
Mag pri	12.04	Mag sec	13.25	delta mag (ΔM)	1.21	Spectral class
Pri motion ra	+012	Sec motion ra	+014
Pri motion dec	-026	Sec motion dec	-033
Notes

rPM=0.203 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Aquila

Tycho2

0508-00643-1

Gaia DR2

4250042973174601600

WDS 20198+0716 GRV 331 : 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
20198+0716	GRV 331		2000	3	323	47.6	12.00	13.20		D	201952.45+071657.6
20198+0716	GRV 331		2010	4	323	47.5	12.04	13.25			201952.45+071657.6
20198+0716	GRV 331		2015	5	323	47.5	12.04	13.25			201952.45+071657.6

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

WDS 20198+0716 GRV 331 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20198+0716 GRV 331 : MEASURES

No records found.

WDS 20198+0716 : VIRTUAL EYEPIECE

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

WDS 20198+0716 : ALADIN DSS IMAGE @ 20^h 19^m 52.45^s +07° 16' 57.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20198+0716 GRV 331 : 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		20198+0716	GRV 331		323	47.5
Show		20209+0727	UC 4153		201	23.7	18
Show		20186+0704	HJ 2945		55	10.1	24
Show		20185+0750	SKF1865		240	56.6	39
Show		20218+0635	TDT2207		258	0.9	51
Show		20183+0627	DAM 208	AB	8	4.9	55
Show		20183+0627	DAM 208	AC	298	5.3	55
Show		20213+0808	GRV 333		193	60.7	56
Show		20185+0626	J 2191		134	4.8	57
Show		20202+0815	DAM 210		321	3.9	59
Show		20158+0715	DAM 207		207	3.8	61
Show		20201+0820	HJ 2949	AB	302	7.5	62
Show		20201+0820	DAM 209	AC	224	12.7	62
Show		20230+0803	UC 4163		291	56.4	66
Show		20167+0802	CVR 222		285	97.6	66
Show		20157+0715	LDS1038		288	116.0	71
Show		20156+0749	STF2656		233	9.7	71
Show		20178+0612	AG 251	AB	185	7.3	73
Show		20178+0612	AG 251	AC	221	87.7	73
Show		20251+0728	UC 4173		359	42.9	79
Show		20211+0837	HJ 2953		260	26.3	82
Show		20254+0700	UC 4176		120	51.9	84
Show		20140+0713	CVR 220		238	101.7	88
Show		20156+0615	HJL 277		251	114.8	89
Show		20136+0717	TOB 308	BC	63	15.6	93
Show		20136+0717	TOB 308	AB	50	18.9	94
Show		20142+0635	S 740	AB	192	43.9	95
Show		20142+0635	TOK 627	AC	134	999.9	95
Show		20142+0635	TOK 627	AD	137	999.9	95
Show		20139+0641	GIC 164		331	101.5	95
Show		20142+0635	TOK 627	BC	132	999.9	96
Show		20142+0635	TOK 627	BD	136	999.9	96
Show		20143+0803	HDS2884		130	0.5	96
Show		20256+0801	LDS4842		218	101.0	97
Show		20264+0741	UC 4183		195	59.7	101
Show		20158+0555	UC 4129		89	48.4	102
Show		20130+0721	HJ 2938		146	20.0	103
Show		20140+0816	J 1295		94	4.0	105
Show		20150+0835	J 552		274	4.0	107
Show		20258+0818	UC 4178		267	86.2	108
Show		20154+0843	SKF2028		67	3.9	109
Show		20264+0810	GWP2947	AB		43.1	111
Show		20256+0604	UC 4177		278	14.3	113
Show		20264+0620	GWP2946		30	25.6	113
Show		20234+0535	WHC 19		178	2.0	114
Show		20233+0534	OPI 24		351	9.2	115
Show		20262+0827	UC 4180		303	9.7	117
Show		20133+0823	TDT2098		77	2.1	118
Show		20276+0745	J 1297		2	1.0	118
Show		20125+0754	J 2302		26	7.2	118
Show		20278+0734	GWP2954		290	50.4	120

WDS 20198+0716 : COMPONENTS

	A
B	pa=323.0° sep=47.41"

20198+0716 A

Componente originario normalizzato	AB		Coord arcsec 2000	201952.45+071657.6		Mag	12.04		PmRA	12.00
PmDE	-26.0		Tycho2	0508-00643-1

Tycho2

Tycho2	0508-00643-1	Pflag		RAmdeg	304.96859928	DEmdeg	7.28262485
PmRA	22.5	PmDE	-35.2	E RAmdeg	88	E DEmdeg	97
E pmRA	4.2	E pmDE	4.1	EpRAm	1984.88	EpDEm	1982.25
Num	2	Q RAmdeg		Q DEmdeg		Q pmRA
Q pmDE		BTmag	12.883	E BTmag	0.256	VTmag	12.171
E VTmag	0.190	Prox	999	TYC		HIP
CCDM		RAdeg	304.96854611	DEdeg	7.28270889	EpRA 1990	1.58
EpDE 1990	1.39	E RAdeg	92.0	E DEdeg	103.8	Posflg
Corr	-0.2

20198+0716 B

Componente originario normalizzato	AB		Coord arcsec 2000	201950.53+071735.5		Mag	13.25		PmRA	14.00
PmDE	-33.0		Calc delta mag	1.21		Calc coord	yes