12519+2540 STF 1684 (HD 111842)

12^h 51^m 54.04^s +25° 40' 29.4" P.A. 269.00 sep 30.7 mag 7.71,12.17 Sp K4III dist. 253.81 pc (827.93 l.y.)

Coord 2000	12519+2540	Discov num	STF1684	Comp		Coord arcsec 2000	12 51 54.04 +25 40 29.4
Date first	1896	Date last	2015	Obs	11
Pa first	265	Pa last	269	P.A. Now (θ)	269°
Sep first	29.3	Sep last	30.74	Sep. Now (ρ)	30.74"
Mag pri	7.71	Mag sec	12.17	delta mag (ΔM)	4.46	Spectral class	K4III (yellow-orange)
Pri motion ra	-003	Sec motion ra	-020
Pri motion dec	+002	Sec motion dec	+014
Notes

rPM=0.852

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 111842	Constellation	Coma Berenices	SAO	82539	HIP	62778
Tycho2	1993-02901-1	Gaia DR2	3958454104393291904	HD	111842	GC	17459
BD	BD+26 2399	Distance	253.81	Distance ly	827.93

WDS 12519+2540 STF 1684 (HD 111842) : NOTES

No records found.

REFERENCES

refcode	metd	author	reference
STFA		(F. Struve DD - Appendix list #1)	...................
STFB		(F. Struve DD - Appendix list #2)	...................
StF1833A	Ma -	Struve, F.G.W.	1833MmRAS...5...13H
StF1833A	+Mc	cited by Herschel (MemRAS 5, 13, 1833)
StF1833B	Ma -	Struve, F.G.W.	1833AN.....10..389B
StF1833B		cited by Bessel (AN 10, 389, 1833)
StF1837	Ma -	Struve, F.G.W.	1837AN.....14...249
StF1837		Stellarum duplicium et multiplicium mensurae micrometricae...
StF1837		(Dorpat, Academiae scientiarum caesareae petropolitaneifique), 1837
StF1844A	Ma -	Struve, F.G.W.	1844QB43.S66.......
StF1844A		cited by Smyth (Cycle of Celestial Objects 2, 1844)
StF1852A	Ma -	Struve, F.G.W.	.
StF1852A		cited by Bishop (Bishop Obs. Astron. Observations 1852)
StF1865A	Ma -	Struve, F.G.W.	1865AN.....64...81E
StF1865A		cited by Engelmann (AN 64, 81, #1518, 1865)
StF1875A	Ma -	Struve, F.G.W.	1875AN.....85..323D
StF1875A		cited by Doberck, 1875 (see Dob1875b,f,g,h)
StF1878	Ma -	Struve, F.G.W.	.
StF1878		Pulkova Observations 9, 1878
StF1878B	Ma -	Struve, F.G.W.	1878Obs.....2..239G
StF1878B		cited by Gledhill (Obs 2, 239, 1878)
StF1880A	Ma -	Struve, F.G.W.	1880Obs.....3..535G
StF1880A		cited by Gledhill (Obs 3, 535, 1880)
StF1906A	Ma -	Struve, F.G.W.	1906QB821.B972.....
StF1906A		cited in BDS (Burnham Double Star Cat.), 1906
StF1906B	Ma -	Struve, F.G.W.	1906MmRAS..56....1L
StF1906B		cited by Lewis (MemRAS 56, 1, 1906)
StF1922A	Ma -	Struve, F.G.W.	1922AN....216...49R
StF1922A		cited by Rabe (AN 216, 49, 1922)
StF1932A	Ma -	Struve, F.G.W.	1932QB821.A43......
StF1932A		cited in ADS (Aitken Double Star Cat.), 1932
StF2002	- -	Weis, J.
StF2002		F. G. W. Struve's double stars : the Dorpat catalogue; the Pulkovo catalogue
StF2002		USNO Library : QB 821 .S8 W49 2002
StF2022	- -	email note from Jan Weis: 6 July 2022
StF9999	Ma -	Struve, F.G.W.	...................
StF9999		Unpublished, manuscript or reference not found.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12519+2540	STF1684		1999	5	269	31.1	7.35	10.40	K4III		125154.04+254029.4
12519+2540	STF1684		2001	6	269	30.5	7.35	10.40	K4III		125154.04+254029.4
12519+2540	STF1684		2010	7	269	30.4	7.71	12.17	K4III		125154.04+254029.4
12519+2540	STF1684		2015	8	269	30.7	7.71	12.17	K4III		125154.04+254029.4

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

WDS 12519+2540 STF 1684 (HD 111842) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12519+2540 STF 1684 (HD 111842) : MEASURES

No records found.

WDS 12519+2540 (HD 111842) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 12519+2540 (HD 111842) : ALADIN DSS IMAGE @ 12^h 51^m 54.04^s +25° 40' 29.4"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12519+2540 STF 1684 (HD 111842) : 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		12519+2540	STF1684		269	30.7
Show		12516+2531	HJL1074	AC	120	372.5	11
Show		12537+2536	CVR1475		34	4.4	25
Show		12505+2602	SKF1481		63	1.3	29
Show		12496+2551	CVR1470	AB	208	3.8	33
Show		12544+2552	SDK 161	AB	113	15.2	35
Show		12544+2552	SDK 161	AC	88	7.6	35
Show		12544+2552	SDK 161	BC	314	8.9	35
Show		12506+2612	LDS3062		247	29.1	37
Show		12514+2616	LDS4284		350	16.7	37
Show		12553+2618	LDS1342		354	5.3	59
Show		12558+2516	KPP1658		323	12.7	59
Show		12519+2647	HDS1805		184	0.5	67
Show		12548+2636	WIS 208		5	794.2	68
Show		12556+2628	CBL 399		178	22.0	69
Show		12539+2438	YSC 47		325	0.1	69
Show		12499+2642	LDS4280		282	15.1	69
Show		12475+2617	LDS4270		234	166.2	70
Show		12508+2649	KPP 825		341	7.0	71
Show		12486+2446	COU 395		70	2.2	72
Show		12486+2636	KPP3260		228	4.4	72
Show		12466+2625	BRT 160		15	4.6	85
Show		12575+2457	COU 397		61	0.8	88
Show		12585+2555	LDS2893		285	88.2	90
Show		12515+2714	ES 439		67	2.1	94
Show		12501+2408	A 563		180	0.4	96
Show		12448+2530	COU 393		187	3.3	97
Show		12556+2704	SKF2541	AB	202	10.1	97
Show		12445+2551	SLW 766		352	13.1	100
Show		12584+2630	SDK 178		297	15.5	101
Show		12587+2626	COU 479		156	0.9	103
Show		12496+2721	LDS4279		95	55.7	107
Show		12490+2401	CVR 665		155	28.0	107
Show		12454+2643	LDS4262		6	4.8	108
Show		12582+2431	COU 398		48	0.8	111
Show		12554+2359	SKF1482		111	1.3	113
Show		12440+2622	LDS4258		22	30.5	115
Show		12437+2620	LDS4257		87	81.2	117
Show		12465+2409	ENG 48		15	184.5	118
Show		12493+2733	CHR 179	Aa,Ab	7	0.3	118
Show		12493+2733	HJ 522	AB	26	42.5	118
Show		13003+2508	SLW 808		210	90.4	119
Show		12526+2342	COU 396		315	0.9	119
Show		12429+2555	ES 438		285	5.7	123
Show		12538+2742	LDS1340		32	97.6	125
Show		13008+2615	LDS1354		195	9.8	126
Show		12587+2707	STF1700		84	7.4	127
Show		12434+2643	KPP1667		336	12.8	130
Show		12445+2705	LAS 33		203	6.5	130
Show		12508+2327	CVR1472		47	4.8	135
Show		12444+2713	COU 597		102	0.3	137

WDS 12519+2540 : COMPONENTS

	A
B	pa=268.9° sep=27.71"

12519+2540 A

Componente originario normalizzato	AB	Name	HD 111842	Coord arcsec 2000	125154.04+254029.4	Mag	7.71
Spectral class	K4III (yellow-orange)	PmRA	-3.00	PmDE	2.0	SAO	82539
HIP	62778	Tycho2	1993-02901-1	HD	111842	GC	17459
BD	BD+26 2399

Tycho2

Tycho2	1993-02901-1	Pflag		RAmdeg	192.97516308	DEmdeg	25.67483291
PmRA	-4.2	PmDE	0.2	E RAmdeg	6	E DEmdeg	6
E pmRA	0.9	E pmDE	0.9	EpRAm	1990.77	EpDEm	1990.81
Num	13	Q RAmdeg	0.7	Q DEmdeg	1.0	Q pmRA	0.7
Q pmDE	0.9	BTmag	9.490	E BTmag	0.020	VTmag	7.705
E VTmag	0.011	Prox	999	TYC	T	HIP	62778
CCDM		RAdeg	192.97517389	DEdeg	25.67483222	EpRA 1990	1.74
EpDE 1990	1.68	E RAdeg	6.0	E DEdeg	6.0	Posflg
Corr	0.0

SAO

SAO	82539	DelFlag		RA1950		PmRA1950	0
DE1950		PmDE1950	0	Vmag	7.6	SpType	K5
Double code		Source	70	CatNum	17459	DM	BD+26 2399
DMcomp		BDsup		HD	111842	M HD	0
GC	17459	RA1950rad	3.35738849	DE1950rad	0.45285094	PmRA2000	0
PmDE2000	0.004

Hipparcos

Catalog	H	HIP	62778	Proxy		RAhms	12 51 54.04
DEdms	+25 40 29.4	Vmag	7.55	VarFlag		R Vmag	G
RAdeg	192.975	DEdeg	25.6748	AstroRef		Plx	2.23
CCDM	12519+2540	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	111842	BD	BD+26 2399
CD		CP		Dm number	+26 2399	VIred	1.47
SpType	K4III	R SpType		Coord arcsec 2000	125154.04+254029.4

Hipparcos 2

HIP	62778	Sn	5	So	0	Nc	1
RArad	3.3680522024	DErad	0.4481103584	Plx	3.94	PmRA	-3.06
PmDE	2.29	E RArad	0.6	E DErad	0.49	E Plx	0.7
E pmRA	0.69	E pmDE	0.56	Hpmag	7.6717	E Hpmag	0.0013
SHp	0.012	VA	0	BV	1.464	E BV	0.016
VI	1.47

CCDM

Ccdm	12519+2540	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.02	DDEs	29.5
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.7	Sp	K5	PmNote	*
PmRA	-7	PmDE	0	Dm number	+26 2399	Cat1	BD
Name2	+25 1368	Cat2	AGK2/3	HD	111842	M HD
ADS BDS	B 6290	M ADS BDS		N IDS		IDS	12470N2613A
HIC	62778

12519+2540 B

Componente originario normalizzato	AB		Coord arcsec 2000	125151.99+254028.9		Mag	12.17		PmRA	-20.00
PmDE	14.0		Calc delta mag	4.46		Calc coord	yes

CCDM

Ccdm	12519+2540	RComp		Comp	B	Note1
Note2		Discov num	STF1684	DRAs		DDEs
R dRAs		Year	1905	Theta	268	Rho	29.2
Obs	1	Vmag	10.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	B 6290	M ADS BDS	N	N IDS		IDS	12470N2613B
HIC