21512+4050 GRV 515

21^h 51^m 13.68^s +40° 50' 02.0" P.A. 313.00 sep 28.2 mag 11.16,14.20

Coord 2000	21512+4050	Discov num	GRV 515	Comp		Coord arcsec 2000	21 51 13.68 +40 50 02.0
Date first	1998	Date last	2015	Obs	6
Pa first	313	Pa last	312.8	P.A. Now (θ)	312.8°
Sep first	28.2	Sep last	28.22	Sep. Now (ρ)	28.22"
Mag pri	11.16	Mag sec	14.20	delta mag (ΔM)	3.04	Spectral class
Pri motion ra	-011	Sec motion ra	-006
Pri motion dec	-011	Sec motion dec	-005
Notes

rPM=0.502

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1960221119689943424

WDS 21512+4050 GRV 515 : 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
21512+4050	GRV 515		2000	2	313	28.2	10.40	13.80		D	215113.68+405002.0
21512+4050	GRV 515		2002	3	313	28.2	10.40	13.80		D	215113.68+405002.0
21512+4050	GRV 515		2010	3	313	27.4	11.16	14.20			215113.68+405002.0
21512+4050	GRV 515		2015	3	313	28.2	11.16	14.20			215113.68+405002.0

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

WDS 21512+4050 GRV 515 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21512+4050 GRV 515 : MEASURES

No records found.

WDS 21512+4050 : VIRTUAL EYEPIECE

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

WDS 21512+4050 : ALADIN DSS IMAGE @ 21^h 51^m 13.68^s +40° 50' 02.0"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21512+4050 GRV 515 : 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		21512+4050	GRV 515		313	28.2
Show		21494+4058	TDT3178		251	0.6	22
Show		21498+4033	TDT3183		55	0.8	24
Show		21523+4025	ES 261		165	5.1	27
Show		21518+4022	TDT3199		341	3.9	30
Show		21538+4041	COU1980		247	1.5	31
Show		21506+4017	SEI1539		260	27.0	34
Show		21545+4052	TDT3230		222	2.0	38
Show		21530+4121	GRV 516		151	14.3	38
Show		21518+4128	KPP4253		269	4.3	39
Show		21505+4135	TDS1149		285	0.7	46
Show		21540+4125	TDT3223		123	0.9	48
Show		21552+4110	TDT3242		200	2.3	49
Show		21556+4059	LDS5937		141	6.3	52
Show		21532+4141	DAM 241		311	8.0	57
Show		21533+4144	J 3152		238	4.6	59
Show		21458+4029	ES 1693		34	7.4	66
Show		21505+3944	ES 211	AB	197	2.5	67
Show		21505+3944	ES 211	AC	178	10.1	67
Show		21505+3944	ES 211	AD	102	21.1	67
Show		21542+3953	HJ 1703		82	8.9	67
Show		21456+4110	TDT3144		193	2.2	68
Show		21512+3941	TDT3192		118	0.5	70
Show		21574+4042	ES 1694		66	1.7	72
Show		21513+3938	TDT3196		234	2.1	73
Show		21473+4148	A 404	AB	100	3.8	74
Show		21473+4148	A 404	AC	294	14.0	74
Show		21493+3937	SEI1536		147	28.1	77
Show		21461+4143	TDT3148		18	0.4	79
Show		21511+4209	COU1822	AB	19	0.2	79
Show		21504+3927	HO 170		256	0.3	84
Show		21576+4004	SEI1546		212	29.0	87
Show		21454+3955	SEI1534		189	27.8	87
Show		21589+4109	TDT3272		9	1.2	89
Show		21478+4212	TDT3158		230	2.7	91
Show		21459+3943	SEI1535		229	8.5	91
Show		21592+4102	OSO 164	AB	15	11.9	91
Show		21592+4102	OSO 164	AC	178	16.1	91
Show		21592+4102	OSO 164	AD	95	18.4	91
Show		21519+4221	HO 172	AB	82	10.7	91
Show		21519+4221	HO 172	AC	40	89.7	91
Show		21519+4221	HO 172	AD	61	480.9	91
Show		21519+4221	FYM 113	AE	20	64.4	91
Show		21519+4221	JOD 22	BF	48	2.1	91
Show		21509+3918	MLB 788		52	4.9	92
Show		21458+3945	MLB 902		327	5.6	93
Show		21456+4202	TDT3143		34	0.5	96
Show		21431+4122	COU1978		87	0.2	97
Show		21431+4021	TDT3121		157	1.7	98
Show		21450+3942	GRV 499		170	67.4	98
Show		21426+4103	BU 688	AB	198	0.4	100

WDS 21512+4050 : COMPONENTS

	A
B	pa=320.7° sep=24.76"

21512+4050 A

Componente originario normalizzato	AB		Coord arcsec 2000	215113.68+405002.0		Mag	11.16		PmRA	-11.00
PmDE	-11.0

21512+4050 B

Componente originario normalizzato	AB		Coord arcsec 2000	215112.30+405021.2		Mag	14.2		PmRA	-6.00
PmDE	-5.0		Calc delta mag	3.04		Calc coord	yes