21089+0741 GRV 424

21^h 08^m 58.14^s +07° 41' 48.0" P.A. 327.00 sep 12.1 mag 9.60,10.90

Coord 2000	21089+0741	Discov num	GRV 424	Comp		Coord arcsec 2000	21 08 58.14 +07 41 48.0
Date first	1908	Date last	2016	Obs	13
Pa first	326	Pa last	326.5	P.A. Now (θ)	326.5°
Sep first	11.9	Sep last	12.108	Sep. Now (ρ)	12.108"
Mag pri	9.60	Mag sec	10.90	delta mag (ΔM)	1.3	Spectral class
Pri motion ra	+011	Sec motion ra	+011
Pri motion dec	-019	Sec motion dec	-019
Notes	V (Proper motion indicates physical)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Equuleus

Tycho2

1104-00396-1

Gaia DR2

1742982223609864704

WDS 21089+0741 GRV 424 : 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
21089+0741	GRV 424		2000	5	327	12.1	9.60	10.90		D	210858.14+074148.0
21089+0741	GRV 424		2010	6	327	12.2	9.60	10.90		D	210858.14+074148.0
21089+0741	GRV 424		2015	8	327	12.1	9.60	10.90			210858.14+074148.0
21089+0741	GRV 424		2016	13	327	12.1	9.60	10.90		V	210858.14+074148.0

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

WDS 21089+0741 GRV 424 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21089+0741 GRV 424 : MEASURES

No records found.

WDS 21089+0741 : VIRTUAL EYEPIECE

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WDS 21089+0741 : ALADIN DSS IMAGE @ 21^h 08^m 58.14^s +07° 41' 48.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21089+0741 GRV 424 : 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		21089+0741	GRV 424		327	12.1	1
Show		21092+0728	KPP 485		7	5.0	15
Show		21068+0737	GRV 419		302	38.8	32
Show		21117+0715	UC 4399		32	82.7	49
Show		21059+0803	OSO 140		273	18.7	51
Show		21124+0745	J 576		236	2.3	52
Show		21119+0710	BRT2189		273	6.5	55
Show		21090+0643	STT 428		256	24.0	59
Show		21128+0729	UC 4405		272	36.1	59
Show		21051+0757	HDS3004	AB	252	0.3	59
Show		21051+0757	MET 90	AC	354	4.3	59
Show		21051+0757	MET 90	AD	166	9.8	59
Show		21046+0750	HJ 3008		80	27.0	66
Show		21045+0746	BU 269		239	1.2	66
Show		21053+0704	ENG 80	AB	240	64.6	66
Show		21053+0704	ENG 80	AC	106	169.4	66
Show		21124+0656	BRT2190		15	3.7	70
Show		21133+0714	UC 4410		319	95.7	70
Show		21061+0837	A 1217		193	2.0	70
Show		21137+0735	KPP 487		211	3.2	71
Show		21135+0713	BU 270	AB	342	0.4	73
Show		21135+0713	S 781	AB,D	172	184.1	73
Show		21135+0713	BU 270	AB,C	26	30.8	73
Show		21080+0630	SKF2741		40	1.9	73
Show		21141+0729	UC 4414		295	27.0	78
Show		21139+0715	UC 4413		227	26.9	79
Show		21126+0644	KPP 6		61	6.7	79
Show		21143+0725	UC 4415			69.1	82
Show		21093+0618	TDT2789		20	2.0	85
Show		21144+0807	TDT2847		255	1.9	85
Show		21143+0705	HJ 3015		264	16.3	88
Show		21151+0712	UC 4422		43	16.1	96
Show		21137+0846	UC 4412	AB	201	8.6	96
Show		21137+0846	RAO 449	Aa,Ab	322	0.4	96
Show		21101+0919	GWP3039		61	73.1	99
Show		21030+0650	GRV 406		287	10.5	102
Show		21158+0747	SKF1870		203	43.4	103
Show		21152+0829	SKF1869		302	67.9	104
Show		21022+0711	STF2742		213	3.0	106
Show		21018+0757	CVR 883		128	28.3	109
Show		21021+0703	WSP 90	AB	185	1.0	109
Show		21021+0703	WSP 90	AC	1	9.5	109
Show		21021+0703	WSP 90	AD	83	16.5	109
Show		21096+0550	TDT2793		354	0.5	113
Show		21167+0731	HDS3030		285	0.2	115
Show		21110+0933	STF2765	AB	82	2.9	116
Show		21110+0933	STF2765	AC	167	44.2	116
Show		21086+0938	J 159		246	4.0	117
Show		21054+0557	BUP 224		301	30.4	117
Show		21147+0907	CVR 890		3	29.1	120
Show		21131+0558	GWP3043	AB	300	81.7	122

WDS 21089+0741 : COMPONENTS

	A
B	pa=326.7° sep=12.07"

21089+0741 A

Componente originario normalizzato	AB		Coord arcsec 2000	210858.14+074148.0		Mag	9.6		PmRA	11.00
PmDE	-19.0		Tycho2	1104-00396-1

Tycho2

Tycho2	1104-00396-1	Pflag		RAmdeg	317.24224902	DEmdeg	7.69666702
PmRA	16.1	PmDE	-20.6	E RAmdeg	28	E DEmdeg	26
E pmRA	2.2	E pmDE	2.1	EpRAm	1989.20	EpDEm	1989.37
Num	5	Q RAmdeg	0.2	Q DEmdeg	0.6	Q pmRA	0.2
Q pmDE	0.6	BTmag	11.052	E BTmag	0.064	VTmag	9.870
E VTmag	0.036	Prox	999	TYC	T	HIP
CCDM		RAdeg	317.24221139	DEdeg	7.69671361	EpRA 1990	1.60
EpDE 1990	1.66	E RAdeg	29.0	E DEdeg	27.3	Posflg
Corr	-0.3

21089+0741 B

Componente originario normalizzato	AB		Coord arcsec 2000	210857.69+074158.1		Mag	10.9		PmRA	11.00
PmDE	-19.0		Calc delta mag	1.3		Calc coord	yes