21125+3306 GRV 436

21^h 12^m 35.24^s +33° 06' 18.2" P.A. 182.00 sep 54.7 mag 12.85,13.98

Coord 2000	21125+3306	Discov num	GRV 436	Comp		Coord arcsec 2000	21 12 35.24 +33 06 18.2
Date first	1998	Date last	2015	Obs	7
Pa first	182	Pa last	181.8	P.A. Now (θ)	181.8°
Sep first	54.9	Sep last	54.668	Sep. Now (ρ)	54.668"
Mag pri	12.85	Mag sec	13.98	delta mag (ΔM)	1.13	Spectral class
Pri motion ra	-008	Sec motion ra	-005
Pri motion dec	-019	Sec motion dec	-006
Notes

rPM=0.647

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Gaia DR2

1854743934146870144

WDS 21125+3306 GRV 436 : 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
21125+3306	GRV 436		2000	2	182	54.9	12.70	13.50		D	211235.24+330618.2
21125+3306	GRV 436		2002	3	182	54.9	12.70	13.50		D	211235.24+330618.2
21125+3306	GRV 436		2010	3	182	54.7	12.85	13.98			211235.24+330618.2
21125+3306	GRV 436		2015	4	182	54.7	12.85	13.98			211235.24+330618.2

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

WDS 21125+3306 GRV 436 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 21125+3306 GRV 436 : MEASURES

No records found.

WDS 21125+3306 : VIRTUAL EYEPIECE

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

WDS 21125+3306 : ALADIN DSS IMAGE @ 21^h 12^m 35.24^s +33° 06' 18.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 21125+3306 GRV 436 : 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		21125+3306	GRV 436		182	54.7
Show		21120+3252	TDT2819		235	2.5	16
Show		21131+3249	SEI1446		155	8.7	19
Show		21133+3248	KPP2620		346	24.1	21
Show		21111+3256	TDT2809		52	1.9	22
Show		21136+3249	TDT2837		93	0.7	22
Show		21110+3320	VKI 41		309	1.2	24
Show		21107+3306	TDT2805		201	0.5	24
Show		21112+3332	VKI 48		310	1.6	30
Show		21151+3313	TOB 217		268	16.4	33
Show		21145+3330	TDT2849		204	2.2	34
Show		21139+3336	TDT2842		185	1.8	34
Show		21143+3332	ES 2316			5.0	35
Show		21152+3251	HEI 284	AB	26	4.3	38
Show		21152+3251	HEI 284	AC	224	8.7	38
Show		21155+3313	TOB 215		232	16.2	38
Show		21156+3314	GYL 51		102	43.1	38
Show		21149+3240	HJ 1627		182	2.5	39
Show		21156+3315	TOB 216		135	14.2	39
Show		21132+3228	SEI1451		250	27.7	39
Show		21123+3345	TDT2824		26	0.5	40
Show		21148+3238	TOB 218		295	21.8	40
Show		21159+3319	COU1478		175	1.4	43
Show		21138+3225	DAM1261		339	19.4	44
Show		21150+3340	TDT2857		288	0.5	46
Show		21157+3235	HJ 1628		252	15.1	46
Show		21120+3352	WFC 235		14	4.7	47
Show		21125+3217	SEI1443		139	25.6	49
Show		21096+3340	TDT2792		318	0.4	51
Show		21119+3216	SEI1440		110	17.0	51
Show		21159+3340	GYL 52		62	29.0	54
Show		21091+3232	UC 257		38	9.6	56
Show		21112+3214	SEI1433		297	9.6	56
Show		21118+3211	SEI1438		93	22.5	57
Show		21163+3339	ES 2317		310	10.7	57
Show		21128+3210	TDT2827		297	2.5	57
Show		21148+3216	SEI1463		127	26.6	58
Show		21104+3215	SEI1425	AB	34	21.4	58
Show		21104+3215	TOB 212	AC	79	24.2	58
Show		21134+3404	SLE 371		270	12.6	59
Show		21143+3402	GYL 49		148	16.7	60
Show		21079+3324	TRN 31		221	6.1	62
Show		21077+3255	COU1330		222	0.4	63
Show		21084+3344	GRV 422		323	11.1	65
Show		21132+3202	J 3127	AB	159	1.6	66
Show		21132+3202	J 3127	AC	194	12.3	66
Show		21149+3407	J 3129	AB	323	4.7	66
Show		21149+3407	J 3129	AC	149	11.5	66
Show		21160+3217	SEI1482		197	19.9	66
Show		21085+3355	J 3126		348	6.1	72
Show		21069+3313	TDT2760		150	4.1	72

WDS 21125+3306 : COMPONENTS

	A
B	pa=181.5° sep=54.66"

21125+3306 A

Componente originario normalizzato	AB		Coord arcsec 2000	211235.24+330618.2		Mag	12.85		PmRA	-8.00
PmDE	-19.0

21125+3306 B

Componente originario normalizzato	AB		Coord arcsec 2000	211235.13+330523.6		Mag	13.98		PmRA	-5.00
PmDE	-6.0		Calc delta mag	1.13		Calc coord	yes