12491+4213 ES 2643

12^h 49^m 07.52^s +42° 13' 25.4" P.A. 45.00 sep 45.1 mag 8.60,8.81 Sp G9III

Coord 2000	12491+4213	Discov num	ES 2643	Comp		Coord arcsec 2000	12 49 07.52 +42 13 25.4
Date first	1895	Date last	2018	Obs	28
Pa first	51	Pa last	45.3	P.A. Now (θ)	45.3°
Sep first	47.7	Sep last	45.11	Sep. Now (ρ)	45.11"
Mag pri	8.60	Mag sec	8.81	delta mag (ΔM)	0.21	Spectral class	G9III (yellow)
Pri motion ra	-021	Sec motion ra	-059
Pri motion dec	-028	Sec motion dec	-017
Notes	N (See Notes)

rPM=0.644

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Canes Venatici

Tycho2

3023-00256-1

Gaia DR2

1528289521586969856

BD+43 2262

WDS 12491+4213 ES 2643 : NOTES

discov_num	notes	refcode
ES 2643	B is BD+43@2262.

REFERENCES

refcode	metd	author	reference
Es_1901	Mb -	Espin, T.E.	1901AN....155..321E
Es_1901		AN 155, 321, 1901 (ES 1 - 39)
Es_1902a	Ma -	Espin, T.E.	1902AN....158..241E
Es_1902a	+Mb	AN 158, 241, 1902 (ES 40 - 112)
Es_1902b	Mb -	Espin, T.E.	1902MNRAS..62..528E
Es_1902b		MNRAS 62, 528, 1902
Es_1902c	Mb j	Espin, T.E.	1902MNRAS..62..402E
Es_1902c		MNRAS 62, 402, 1902
Es_1903	Mb -	Espin, T.E.	1903MNRAS..63..172E
Es_1903		MNRAS 63, 172, 1903 (ES 113 - 150)
Es_1904a	-	Espin, T.E.	1904MNRAS..64..238E
Es_1904a		MNRAS 64, 238, 1904 (data superceded by MNRAS 65, 710, 1905)	1905MNRAS..65..710E
Es_1904b	Mb -	Espin, T.E.	1904MNRAS..64..675E
Es_1904b		MNRAS 64, 675, 1904
Es_1905	Mb -	Espin, T.E.	1905MNRAS..65..710E
Es_1905		MNRAS 65, 710, 1905 (ES 151 - 221)
Es_1906a	Mb -	Espin, T.E.	1906MNRAS..66..141E
Es_1906a		MNRAS 66, 141, 1906 (ES 222 - 269)
Es_1906b	Mb -	Espin, T.E.	1906MNRAS..66..430E
Es_1906b		MNRAS 66, 430, 1906 (ES 270 - 311)
Es_1906C	Mb -	Espin, T.E.	1906QB821.B972.....
Es_1906C		cited in BDS (Burnham Double Star Cat.), 1906
Es_1906D	Mb -	Espin, T.E.	1906MmRAS..56....1L
Es_1906D		cited by Lewis (MemRAS 56, 1, 1906)
Es_1907a	Mb j	Espin, T.E.	1907MNRAS..67..190E
Es_1907a		MNRAS 67, 190, 1907 (ES 312 - 403)
Es_1907b	Mb -	Espin, T.E.	1907MNRAS..67..495E
Es_1907b		MNRAS 67, 495, 1907 (ES 404 - 442)
Es_1908a	Mb j	Espin, T.E.	1908MNRAS..68..202E
Es_1908a		MNRAS 68, 202, 1908 (ES 443 - 551)
Es_1908b	Mb -	Espin, T.E.	1908MNRAS..68..523E
Es_1908b		MNRAS 68, 523, 1908 (ES 552 - 609)
Es_1908c	-	Espin, T.E.	1908JRASC...2..248E
Es_1908c		JRASC 2, 248, 1908 (data also in MNRAS 69, 218, 1909)	1909MNRAS..69..218E
Es_1909a	Mb j	Espin, T.E.	1909MNRAS..69..218E
Es_1909a		MNRAS 69, 218, 1909 (ES 610 - 704)
Es_1909b	Mb j	Espin, T.E.	1909MNRAS..69..604E
Es_1909b		MNRAS 69, 604, 1909 (ES 705 - 743)
Es_1910a	Mb -	Espin, T.E.	1910MNRAS..70..237E
Es_1910a		MNRAS 70, 237, 1910 (ES 744 - 864)
Es_1910b	Mb -	Espin, T.E.	1910MNRAS..70..541E
Es_1910b		MNRAS 70, 541, 1910 (ES 865 - 927)
Es_1911	Mb -	Espin, T.E.	1911MNRAS..71..217E
Es_1911		MNRAS 71, 217, 1911 (ES 928 - 1051)
Es_1912	Mb -	Espin, T.E.	1912MNRAS..72..191E
Es_1912		MNRAS 72, 191, 1912 (ES 1052 - 1125)
Es_1913	Mb j	Espin, T.E.	1913MNRAS..73..162E
Es_1913		MNRAS 73, 162, 1913 (ES 1126 - 1191)
Es_1914	Mb j	Espin, T.E.	1914MNRAS..74..244E
Es_1914		MNRAS 74, 244, 1914 (ES 1192 - 1293)
Es_1915a	Mb -	Espin, T.E.	1915MNRAS..75..203E
Es_1915a		MNRAS 75, 203, 1915 (ES 1294 - 1356)
Es_1915b	Mb -	Espin, T.E.	1915MNRAS..75..555E
Es_1915b		MNRAS 75, 555, 1915 (ES 1357 - 1405)
Es_1915c	Mb -	Espin, T.E.	1915MNRAS..76..210E
Es_1915c		MNRAS 76, 210, 1915 (ES 1406 - 1479)
Es_1917	Mb -	Espin, T.E.	1917MNRAS..77..236E
Es_1917		MNRAS 77, 236, 1917 (ES 1480 - 1600)
Es_1918	Mb j	Espin, T.E.	1918MNRAS..78..189E
Es_1918		MNRAS 78, 189, 1918 (ES 1601 - 1705, MLB 1 - 35)
Es_1919	Mb -	Espin, T.E.	1919MNRAS..79..211E
Es_1919		MNRAS 79, 211, 1919 (ES 1706 - 1768, MLB 36 - 106)
Es_1920	Mb -	Espin, T.E.	1920MNRAS..80..329E
Es_1920		MNRAS 80, 329, 1920 (ES 1769 - 1805, MLB 107 - 149)
Es_1921	Mb j	Espin, T.E.	1921MNRAS..81..232E
Es_1921		MNRAS 81, 232, 1921 (ES 1806 - 1864, MLB 150 - 182)
Es_1922	Mb -	Espin, T.E.	1922MNRAS..82..187E
Es_1922		MNRAS 82, 187, 1922 (ES 1865 - 1933, MLB 183 - 241)
Es_1923	Mb -	Espin, T.E.	1923MNRAS..83..154E
Es_1923		MNRAS 83, 154, 1923 (ES 1934 - 2006, MLB 242 - 275)
Es_1924	Mb -	Espin, T.E.	1924MNRAS..84..162E
Es_1924		MNRAS 84, 162, 1924 (ES 2007 - 2078, MLB 276 - 322)
Es_1925a	Mb -	Espin, T.E.	1925MNRAS..85..276E
Es_1925a		MNRAS 85, 276, 1925 (ES 2079 - 2137, MLB 323 - 376)
Es_1925b	Mb -	Espin, T.E.	1925MNRAS..86...79E
Es_1925b		MNRAS 86, 79, 1925
Es_1926	Mb -	Espin, T.E.	1926MNRAS..86..131E
Es_1926		MNRAS 86, 131, 1926 (ES 2138 - 2209, MLB 377 - 440)
Es_1927	Mb -	Espin, T.E.	1927MNRAS..87..215E
Es_1927		MNRAS 87, 215, 1927 (ES 2210 - 2273, MLB 441 - 510)
Es_1928	Mb -	Espin, T.E.	1928MNRAS..88..185E
Es_1928		MNRAS 88, 185, 1928 (ES 2274 - 2328, MLB 511 - 551)
Es_1929	Mb -	Espin, T.E.	1929MNRAS..89..268E
Es_1929		MNRAS 89, 268, 1929 (ES 2329 - 2362, MLB 552 - 591)
Es_1930	Mb -	Espin, T.E.	1930MNRAS..90..317E
Es_1930		MNRAS 90, 317, 1930 (ES 2363 - 2400, MLB 592 - 630)
Es_1931	Mb -	Espin, T.E.	1931MNRAS..91..294E
Es_1931		MNRAS 91, 294, 1931 (ES 2401 - 2444, MLB 631 - 673)
Es_1932a	Mb -	Espin, T.E.	1932MNRAS..92..214E
Es_1932a		MNRAS 92, 214, 1932 (ES 2445 - 2543, MLB 674 - 732)
Es_1932B	Mb -	Espin, T.E.	1932QB821.A43......
Es_1932B		cited in ADS (Aitken Double Star Cat.), 1932
Es_1933	Mb -	Espin, T.E.	1933MNRAS..93..192E
Es_1933		MNRAS 93, 192, 1933 (ES 2544 - 2575, MLB 733 - 806)
Es_1937A	Mb -	Espin, T.E.	1937AnLei..18....1S
Es_1937A		cited by Strand (Ann. Sterrew. Leiden 18, 1937)

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12491+4213	ES 2643		2008	19	46	45.4	8.60	8.81	G9III	N D	124907.52+421325.4
12491+4213	ES 2643		2010	22	46	45.1	8.60	8.81	G9III	N	124907.52+421325.4
12491+4213	ES 2643		2017	23	46	44.7	8.60	8.81	G9III	N	124907.52+421325.4
12491+4213	ES 2643		2018	28	45	45.1	8.60	8.81	G9III	N	124907.52+421325.4

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

WDS 12491+4213 ES 2643 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12491+4213 ES 2643 : MEASURES

No records found.

WDS 12491+4213 : VIRTUAL EYEPIECE

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

WDS 12491+4213 : ALADIN DSS IMAGE @ 12^h 49^m 07.52^s +42° 13' 25.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12491+4213 ES 2643 : 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		12491+4213	ES 2643		45	45.1
Show		12468+4125	HJ 2620		293	14.4	55
Show		12533+4246	COU1579		141	0.3	57
Show		12450+4248	CBL 395		70	22.6	58
Show		12532+4255	CVR 670		338	22.3	62
Show		12544+4248	HJ 2622	AB	325	29.9	68
Show		12544+4248	SIN 76	AC	329	93.5	68
Show		12544+4251	TDS8577		9	0.9	70
Show		12550+4236	ES 2644	AB	75	39.7	70
Show		12550+4236	COU1580	Ba,Bb	109	0.4	71
Show		12546+4253	HJ 2623		146	23.6	72
Show		12428+4154	BWL 34		32	12.3	73
Show		12469+4052	LDS4266		94	2.8	85
Show		12465+4054	HDS1792		106	0.3	85
Show		12449+4326	A 1783		214	1.8	86
Show		12543+4108	HJL1075		106	119.5	88
Show		12571+4223	STF1697		217	28.3	90
Show		12563+4300	A 2000		47	1.0	93
Show		12548+4105	KPP1796		238	13.9	94
Show		12430+4109	SKF2653		259	17.7	94
Show		12414+4306	BVD 223		48	18.6	100
Show		12582+4153	LDS5766		152	29.1	103
Show		12584+4156	DAM 712	AB	35	4.9	105
Show		12584+4156	SKF2657	AC	136	23.9	105
Show		12548+4049	JNN 81		33	0.6	107
Show		12411+4316	UR 7		359	5.1	109
Show		12416+4105	LDS5757		150	150.3	109
Show		12494+4023	UC 2409	AC	185	17.1	111
Show		12505+4021	LDS4281		112	101.5	113
Show		12566+4333	BU 925		209	6.5	115
Show		12593+4245	HJ 1223	AB	189	18.3	117
Show		12593+4245	SIN 77	AC	277	90.8	117
Show		12593+4245	SIN 77	AD	248	115.7	117
Show		12418+4343	KPP3258		64	4.8	121
Show		12388+4138	COU1908		77	2.6	121
Show		12382+4212	SKF2652		126	125.8	122
Show		12381+4155	SKF2651		257	6.9	124
Show		12400+4102	SMH 17		210	12.1	125
Show		12540+4406	LDS4292		67	3.3	126
Show		12520+4011	ES 1404		30	2.9	126
Show		13008+4213	SKF 276	AB	43	3.2	130
Show		13008+4213	DEA 49	AC	24	134.1	130
Show		12437+4015	ES 1403	AB	215	2.9	135
Show		12437+4015	LNA 3	Aa,Ab	55	0.2	135
Show		12433+4015	SKF2654		253	64.6	136
Show		12568+4029	SKF2656		113	16.7	136
Show		12412+4359	A 1850		50	2.9	137
Show		12542+4008	UC 2425		328	93.6	139
Show		12430+4008	COU1425		355	0.8	143
Show		12584+4033	HDS1819		195	0.2	145
Show		13020+4241	JNN 84		248	2.9	146

WDS 12491+4213 : COMPONENTS

	A
B	pa=36.8° sep=39.63"

12491+4213 A

Componente originario normalizzato	AB		Coord arcsec 2000	124907.52+421325.4		Mag	8.6		Spectral class	G9III (yellow)
PmRA	-21.00		PmDE	-28.0		Tycho2	3023-00256-1		DM	BD+43 2261

Tycho2

Tycho2	3023-00256-1	Pflag		RAmdeg	192.28132100	DEmdeg	42.22371981
PmRA	-21.8	PmDE	-29.0	E RAmdeg	8	E DEmdeg	7
E pmRA	1.0	E pmDE	1.0	EpRAm	1990.48	EpDEm	1990.73
Num	9	Q RAmdeg	0.5	Q DEmdeg	0.7	Q pmRA	0.5
Q pmDE	0.7	BTmag	9.718	E BTmag	0.020	VTmag	8.597
E VTmag	0.012	Prox	455	TYC	T	HIP
CCDM		RAdeg	192.28139111	DEdeg	42.22378861	EpRA 1990	1.46
EpDE 1990	1.47	E RAdeg	7.5	E DEdeg	7.2	Posflg
Corr	-0.1

12491+4213 B

Componente originario normalizzato	AB	Coord arcsec 2000	124909.66+421357.1	Mag	8.81	PmRA	-59.00
PmDE	-17.0	Tycho2	3023-00411-1	DM	BD+43 2262	Calc delta mag	0.21
Calc coord	yes

Tycho2

Tycho2	3023-00411-1	Pflag		RAmdeg	192.29364065	DEmdeg	42.23239871
PmRA	-58.9	PmDE	-16.8	E RAmdeg	8	E DEmdeg	7
E pmRA	0.9	E pmDE	0.9	EpRAm	1990.52	EpDEm	1990.67
Num	9	Q RAmdeg	1.8	Q DEmdeg	1.3	Q pmRA	1.9
Q pmDE	1.3	BTmag	9.275	E BTmag	0.018	VTmag	8.805
E VTmag	0.014	Prox	455	TYC	T	HIP
CCDM		RAdeg	192.29382944	DEdeg	42.23243917	EpRA 1990	1.46
EpDE 1990	1.47	E RAdeg	7.5	E DEdeg	7.2	Posflg
Corr	-0.1