21171+4002 GRV 443

21^h 17^m 08.00^s +40° 02' 16.2" P.A. 333.00 sep 16.6 mag 11.60,15.09

Coord 2000	21171+4002	Discov num	GRV 443	Comp		Coord arcsec 2000	21 17 08.00 +40 02 16.2
Date first	1998	Date last	2015	Obs	7
Pa first	333	Pa last	332.7	P.A. Now (θ)	332.7°
Sep first	16.6	Sep last	16.561	Sep. Now (ρ)	16.561"
Mag pri	11.60	Mag sec	15.09	delta mag (ΔM)	3.49	Spectral class
Pri motion ra	-013	Sec motion ra	-020
Pri motion dec	-016	Sec motion dec	-021
Notes

rPM=0.297 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1965253030355712256

WDS 21171+4002 GRV 443 : 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
21171+4002	GRV 443		2000	2	333	16.7	11.40	13.70		D	211708.00+400216.2
21171+4002	GRV 443		2002	3	333	16.6	11.40	13.70		D	211708.00+400216.2
21171+4002	GRV 443		2010	3	333	16.6	11.60	15.09			211708.00+400216.2
21171+4002	GRV 443		2015	4	333	16.6	11.60	15.09			211708.00+400216.2

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WDS 21171+4002 GRV 443 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21171+4002 GRV 443 : MEASURES

No records found.

WDS 21171+4002 : VIRTUAL EYEPIECE

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

WDS 21171+4002 : ALADIN DSS IMAGE @ 21^h 17^m 08.00^s +40° 02' 16.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21171+4002 GRV 443 : 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		21171+4002	GRV 443		333	16.6	1
Show		21171+4001	A 1441	AB	273	0.2	2
Show		21171+4001	SEI1489	AC	102	16.4	2
Show		21169+4009	COU1972		145	0.2	8
Show		21165+3959	SEI1484		7	4.2	8
Show		21180+4003	LDS2506		161	14.1	10
Show		21175+3950	SEI1493		142	24.1	13
Show		21168+4019	TOB 219		212	35.0	18
Show		21170+4020	SEI1487		238	21.2	18
Show		21174+4020	SEI1492		246	24.6	18
Show		21176+3945	STF2785		234	2.9	19
Show		21176+4023	LDS2505		23	4.3	23
Show		21184+3943	SEI1497		213	10.0	24
Show		21191+3954	SEI1502		274	13.1	25
Show		21153+4017	A 1440		213	1.2	26
Show		21172+3936	SEI1490	AB	95	20.1	26
Show		21172+3936	LDS2504	BC	67	23.5	26
Show		21190+3945	STT 434	AB	122	24.4	28
Show		21190+3945	ARY 5	AC	317	97.2	28
Show		21191+3944	SEI1501		240	29.7	30
Show		21196+3948	SEI1503	AB	278	9.7	32
Show		21196+3948	SEI1504	AC	66	22.5	32
Show		21196+3948	ABH 143	AD	119	104.7	32
Show		21196+3948	ABH 143	AE	161	54.4	32
Show		21196+3948	ABH 143	AF	229	50.9	32
Show		21196+3948	ABH 143	AG	45	111.9	32
Show		21196+3948	ABH 143	AH	66	86.5	32
Show		21196+3948	ABH 143	AI	74	124.3	32
Show		21199+3957	SEI1506		60	7.8	33
Show		21192+4026	LDS2508	AB	357	7.8	34
Show		21146+3947	LDS2500		355	14.5	34
Show		21181+3929	MLB 895		182	5.7	35
Show		21199+3948	SEI1507		146	11.6	36
Show		21184+3930	SEI1496		352	19.5	36
Show		21204+4017	RAO 451		116	2.8	41
Show		21209+4002	LDS2512		30	85.1	44
Show		21209+4010	UC 259	AB	110	55.0	44
Show		21175+3919	MLB 959		291	7.8	44
Show		21165+4046	ES 1690		101	3.8	45
Show		21145+4036	COU2227		193	1.2	47
Show		21212+4003	COU2230		81	0.4	48
Show		21129+4003	LDS2495		173	5.0	50
Show		21215+4002	SEI1511		283	28.5	51
Show		21154+3912	MLB 894		200	3.1	54
Show		21195+4048	TDT2903		9	0.4	54
Show		21139+4042	TDT2840		235	0.7	55
Show		21221+4011	ES 2518		247	2.7	56
Show		21189+3909	AG 270		112	5.8	57
Show		21169+3906	SEI1486		318	23.9	57
Show		21129+4033	ES 256		281	4.5	59
Show		21120+4000	TDT2817		335	0.6	60

WDS 21171+4002 : COMPONENTS

	A
B	pa=338.4° sep=15.82"

21171+4002 A

Componente originario normalizzato	AB		Coord arcsec 2000	211708.00+400216.2		Mag	11.6		PmRA	-13.00
PmDE	-16.0

21171+4002 B

Componente originario normalizzato	AB		Coord arcsec 2000	211707.49+400230.9		Mag	15.09		PmRA	-20.00
PmDE	-21.0		Calc delta mag	3.49		Calc coord	yes