12581+3810 GRV 859

12^h 58^m 07.74^s +38° 10' 50.6" P.A. 262.00 sep 32.9 mag 12.25,13.98

Coord 2000	12581+3810	Discov num	GRV 859	Comp		Coord arcsec 2000	12 58 07.74 +38 10 50.6
Date first	1950	Date last	2015	Obs	12
Pa first	262	Pa last	262.4	P.A. Now (θ)	262.4°
Sep first	32.3	Sep last	32.87	Sep. Now (ρ)	32.87"
Mag pri	12.25	Mag sec	13.98	delta mag (ΔM)	1.73	Spectral class
Pri motion ra	-011	Sec motion ra	-020
Pri motion dec	-013	Sec motion dec	-010
Notes

rPM=0.424

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Canes Venatici

Gaia DR2

1523642813648958848

WDS 12581+3810 GRV 859 : 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
12581+3810	GRV 859		2000	2	262	32.9	12.00	13.90		D	125807.74+381050.6
12581+3810	GRV 859		2002	3	262	32.8	12.00	13.90		D	125807.74+381050.6
12581+3810	GRV 859		2010	3	262	32.8	12.25	13.98			125807.74+381050.6
12581+3810	GRV 859		2015	4	262	32.9	12.25	13.98			125807.74+381050.6

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

WDS 12581+3810 GRV 859 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12581+3810 GRV 859 : MEASURES

No records found.

WDS 12581+3810 : VIRTUAL EYEPIECE

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

WDS 12581+3810 : ALADIN DSS IMAGE @ 12^h 58^m 07.74^s +38° 10' 50.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12581+3810 GRV 859 : 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		12581+3810	GRV 859		262	32.9
Show		12585+3817	STF1702	AB	83	35.9	8
Show	Cor Caroli	12560+3819	STF1692	AB	230	19.3	27
Show		12560+3819	TOK 562	BC	205	999.9	27
Show		13010+3810	UC 2453		252	75.6	34
Show		12560+3819	DAM2486	CD	293	0.9	35
Show		12562+3740	LDS4298		-1	1.0	39
Show		13004+3856	COU1131		243	3.4	53
Show		13012+3852	HU 1142		156	1.0	55
Show		12536+3758	STF1688	AB	344	14.1	56
Show		12536+3758	STF1688	AC	355	79.7	56
Show		12526+3830	SLW 789		294	116.5	69
Show		13039+3758	UC 2463		200	49.1	70
Show		13011+3709	TDS8644		257	0.9	72
Show		13042+3805	KZA 37		66	24.7	72
Show		12521+3755	SLW 786		207	16.7	73
Show		12523+3836	NI 30	AB	159	10.7	74
Show		12523+3836	SKF1029	AC	221	2.8	74
Show		12567+3652	TOK 285		211	130.2	81
Show		12576+3650	WRS 3		343	14.9	82
Show		13039+3724	TDS8673	AB	253	1.3	83
Show		13054+3748	KZA 39		234	32.1	90
Show		13044+3909	KZA 38		306	22.9	94
Show		12504+3847	HU 1139		286	4.8	98
Show		13058+3726	KZA 40		283	57.1	102
Show		12568+3956	CVR1479		213	3.2	107
Show		12512+3921	SKF2655		144	6.4	108
Show		13055+3708	HDS1830		323	0.5	108
Show		13032+3944	UC 2461		29	23.7	111
Show		13065+3716	LDS4314		249	56.7	113
Show		12599+3620	CBL 402		169	13.2	113
Show		12528+3949	ES 1405	AB	283	66.5	117
Show		12528+3949	ES 1405	BC	252	4.3	118
Show		12585+3613	HLG 1		46	61.6	119
Show		12586+4013	RDN 2		33	63.4	123
Show		13082+3844	STF1723		12	6.1	124
Show		12542+4008	UC 2425		328	93.6	126
Show		13089+3800	KZA 41		20	30.4	128
Show		12473+3811	SKF2596		100	6.6	129
Show		12535+3613	CBL 398		278	15.1	131
Show		13091+3858	KZA 42	AB	17	35.2	138
Show		13091+3858	KZA 42	AC	250	56.8	138
Show		13101+3830	BU 608	BC	269	1.3	138
Show		12568+4029	SKF2656		113	16.7	140
Show		12520+4011	ES 1404		30	2.9	141
Show		13094+3857	SLW 828		102	81.0	141
Show		13101+3830	STFA 24	AB	296	275.6	142
Show		12584+4033	HDS1819		195	0.2	143
Show		12517+3610	SLW 782		275	67.1	144
Show		12481+3940	TDS8528		298	1.0	148
Show		13104+3744	KZA 44	AB	209	76.7	148

WDS 12581+3810 : COMPONENTS

	A
B	pa=260.4° sep=25.98"

12581+3810 A

Componente originario normalizzato	AB		Coord arcsec 2000	125807.74+381050.6		Mag	12.25		PmRA	-11.00
PmDE	-13.0

12581+3810 B

Componente originario normalizzato	AB		Coord arcsec 2000	125805.57+381046.3		Mag	13.98		PmRA	-20.00
PmDE	-10.0		Calc delta mag	1.73		Calc coord	yes