13568+1426 STF 1791 (HD 121712)

13^h 56^m 49.22^s +14° 25' 58.6" P.A. 159.00 sep 21.0 mag 9.39,10.73 Sp F7V+G1IV

Coord 2000	13568+1426	Discov num	STF1791	Comp		Coord arcsec 2000	13 56 49.22 +14 25 58.6
Date first	1829	Date last	2016	Obs	28
Pa first	160	Pa last	158.7	P.A. Now (θ)	158.7°
Sep first	20.5	Sep last	21.002	Sep. Now (ρ)	21.002"
Mag pri	9.39	Mag sec	10.73	delta mag (ΔM)	1.34	Spectral class	F7V+G1IV (yellow-white/yellow)
Pri motion ra	-031	Sec motion ra	-031
Pri motion dec	+000	Sec motion dec	-002
Notes	Y (Parallax indicates components are non-physical)

rPM=0.064 (< 0.3, Physical double)

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 121712		Constellation	Bootes		SAO	100783		Tycho2	0906-01125-1
Gaia DR2	1230933645599526528		HD	121712		GC	18852

WDS 13568+1426 STF 1791 (HD 121712) : 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
13568+1426	STF1791		1999	19	159	21.1	9.39	10.73	G5	D	135649.22+142558.6
13568+1426	STF1791		2009	20	159	21.2	9.39	10.73	G5	D	135649.22+142558.6
13568+1426	STF1791		2010	23	159	20.9	9.39	10.73	F7V+G1IV	Y	135649.22+142558.6
13568+1426	STF1791		2016	24	159	21.0	9.39	10.73	F7V+G1IV	Y	135649.22+142558.6

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

WDS 13568+1426 STF 1791 (HD 121712) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 13568+1426 STF 1791 (HD 121712) : MEASURES

No records found.

WDS 13568+1426 (HD 121712) : 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 13568+1426 (HD 121712) : ALADIN DSS IMAGE @ 13^h 56^m 49.22^s +14° 25' 58.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 13568+1426 STF 1791 (HD 121712) : 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		13568+1426	STF1791		159	21.0
Show		13585+1409	TDS9050		264	9.9	31
Show		13588+1434	BPM 609		197	86.1	31
Show		13573+1513	SKF2800	AB	262	12.7	48
Show		13573+1513	SKF2800	AC	98	105.9	48
Show		13527+1429	LDS4416		206	197.1	61
Show		13526+1425	JOD 7			1.2	62
Show		13593+1334	CBL 437		207	22.4	63
Show		14013+1436	GWP2180		243	6.1	66
Show		13566+1320	GRV1205		343	18.2	66
Show		14013+1355	GWP2181		325	643.2	73
Show		13549+1546	LDS1398		187	13.4	85
Show		14028+1417	HEI 65		94	0.3	89
Show		13595+1551	WFC 143		357	9.6	94
Show		13525+1318	LDS 950		212	11.0	96
Show		13540+1258	CVR 713		40	9.6	97
Show		14025+1521	LDS1402		312	6.8	99
Show		14019+1530	ALD 112		340	1.6	99
Show		14037+1441	CBL 438		359	54.7	101
Show		13535+1257	BEU 18		356	0.3	102
Show		13565+1241	RAO 307		204	0.3	106
Show		13590+1610	HEI 232		64	1.9	108
Show		13531+1251	HEI 524		147	3.1	111
Show		13593+1238	TDS9057		272	0.6	114
Show		13537+1241	UC 185		145	20.8	115
Show		13571+1227	STF1792		291	2.3	119
Show		14047+1345	BPM 612		259	22.3	123
Show		14031+1550	LDS1404		56	30.7	124
Show		14040+1318	BPM 611		336	15.7	126
Show		14022+1608	BPM 610		127	91.9	129
Show		13541+1631	CBL 433		9	36.2	132
Show		13496+1301	SHY 635		153	999.9	136
Show		14031+1609	GWP2194		96	293.5	138
Show		13509+1615	GWP2101		26	14.9	140
Show		14024+1232	HEI 525		352	0.2	141
Show		14013+1218	GRV1256		199	1.6	144
Show		13550+1203	GWP2137		139	395.9	146
Show		14057+1537	BPM 613		340	49.0	148
Show		13564+1654	BPM 608		162	79.0	148
Show		13465+1456	SLW 928		49	10.9	153
Show		13488+1244	LDS 949		29	16.7	155
Show		13572+1151	HJ 233		133	20.4	156
Show		13478+1300	GWP2090		192	22.4	158
Show		14036+1223	NSN 651		72	2.5	158
Show		13563+1148	UC 186		127	45.5	159
Show		13465+1522	CBL 430		235	12.0	160
Show		13464+1322	UC 2611		61	31.4	165
Show		14073+1321	SLW 966		71	21.4	167
Show		14069+1547	LAW 21	Ba,Bb	79	0.1	167
Show		13587+1711	COU 58		2	1.4	167
Show		14069+1547	LAW 21	AB	216	33.2	168

WDS 13568+1426 : COMPONENTS

	A
B	pa=159.3° sep=20.92"

13568+1426 A

Componente originario normalizzato	AB	Name	HD 121712	Coord arcsec 2000	135649.22+142558.6	Mag	9.39
Spectral class	F7V (yellow-white)	PmRA	-31.00	PmDE	0.0	SAO	100783
Tycho2	0906-01125-1	HD	121712	GC	18852	DM	BD+15 2646

Tycho2

Tycho2	0906-01125-1	Pflag		RAmdeg	209.20506658	DEmdeg	14.43295203
PmRA	-31.7	PmDE	1.3	E RAmdeg	12	E DEmdeg	14
E pmRA	1.0	E pmDE	1.0	EpRAm	1988.89	EpDEm	1987.92
Num	12	Q RAmdeg	1.0	Q DEmdeg	0.4	Q pmRA	1.0
Q pmDE	0.4	BTmag	9.999	E BTmag	0.026	VTmag	9.387
E VTmag	0.021	Prox	211	TYC	T	HIP
CCDM		RAdeg	209.20514278	DEdeg	14.43294861	EpRA 1990	1.44
EpDE 1990	1.39	E RAdeg	13.0	E DEdeg	14.5	Posflg
Corr	0.2

SAO

SAO	100783	DelFlag		RA1950		PmRA1950	-0.0015
DE1950		PmDE1950	-0.002	Vmag	8.9	SpType	G5
Double code		Source	70	CatNum	18852	DM	BD+15 2646
DMcomp		BDsup		HD	121712	M HD	0
GC	18852	RA1950rad	3.64075623	DE1950rad	0.25615576	PmRA2000	-0.0014
PmDE2000	0.003

CCDM

Ccdm	13568+1426	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.22	DDEs	-1.3
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.3	Sp	G5	PmNote	*
PmRA	-32	PmDE	-3	Dm number	+15 2646	Cat1	BD
Name2	+14 1414	Cat2	AGK2/3	HD	121712	M HD
ADS BDS	B 6680	M ADS BDS		N IDS		IDS	13520N1455A
HIC

13568+1426 B

Componente originario normalizzato	AB	Coord arcsec 2000	135649.73+142539.0	Mag	10.73	Spectral class	G1IV (yellow)
PmRA	-31.00	PmDE	-2.0	Tycho2	0906-00067-1	Calc delta mag	1.34
Calc coord	yes

Tycho2

Tycho2	0906-00067-1	Pflag		RAmdeg	209.20725930	DEmdeg	14.42747474
PmRA	-30.2	PmDE	-3.6	E RAmdeg	37	E DEmdeg	47
E pmRA	1.5	E pmDE	1.4	EpRAm	1983.19	EpDEm	1975.58
Num	4	Q RAmdeg	1.0	Q DEmdeg	0.8	Q pmRA	1.0
Q pmDE	0.9	BTmag	11.478	E BTmag	0.080	VTmag	10.731
E VTmag	0.066	Prox	211	TYC	T	HIP
CCDM		RAdeg	209.20733306	DEdeg	14.42748361	EpRA 1990	1.52
EpDE 1990	1.28	E RAdeg	39.0	E DEdeg	51.7	Posflg
Corr	0.1

CCDM

Ccdm	13568+1426	RComp		Comp	B	Note1
Note2		Discov num	STF1791	DRAs	1.77	DDEs	-21.6
R dRAs	91	Year	1829	Theta	159	Rho	21.0
Obs	7	Vmag	10.1	Sp		PmNote	*
PmRA	-30	PmDE	-9	Dm number		Cat1
Name2	+14 1415	Cat2	AGK2/3	HD		M HD
ADS BDS	B 6680	M ADS BDS		N IDS		IDS	13520N1455B
HIC