12167+3936 STF 1624 AB (HD 106784)

12^h 16^m 42.19^s +39° 35' 34.5" P.A. 153.00 sep 5.9 mag 7.28,10.17 Sp A2.5V dist. 108.81 pc (354.94 l.y.)

Coord 2000	12167+3936	Discov num	STF1624	Comp	AB	Coord arcsec 2000	12 16 42.19 +39 35 34.5
Date first	1831	Date last	2016	Obs	24
Pa first	150	Pa last	153.4	P.A. Now (θ)	153.4°
Sep first	6.2	Sep last	5.902	Sep. Now (ρ)	5.902"
Mag pri	7.28	Mag sec	10.17	delta mag (ΔM)	2.89	Spectral class	A2.5V (white)
Pri motion ra	-019	Sec motion ra	-019
Pri motion dec	+017	Sec motion dec	+017
Notes

Nature of this double is uncertain.

12167+3936 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 106784	62930	12 16 42 +39 35 34	STF 1624 AB	2016	24	153	5.9	7.28	10.17	2.89		<===
Show		62930	12 16 42 +39 35 34	WAL 62 AC	2015	12	143	161.9	7.28	9.22	1.94

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Name	HD 106784	Constellation	Canes Venatici	SAO	62930	HIP	59868
Tycho2	3017-01019-1	Gaia DR2	1532879153702173184	HD	106784	GC	16758
BD	BD+40 2516	Distance	108.81	Distance ly	354.94

WDS 12167+3936 STF 1624 AB (HD 106784) : 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.
Wal1934	Ma j	Wallenquist, A.	1934AnBos...6....3W
Wal1934		Ann. Bosscha Obs. Lembang 6, Pt.2, 1934
Wal1944a	Zw -	Wallenquist, A.	1954MeUpp...85.....
Wal1944a		Medd. Uppsala Obs. #85, 1944
Wal1944a		(Visual measures with wedge photometer attached to 14-inch refractor. No dates
Wal1944a		given for measures; default date = decade of publication added.)
Wal1944b	Zw -	Wallenquist, A.	1954MeUpp...87.....
Wal1944b		Medd. Uppsala Obs. #87, 1944
Wal1944b		(Visual measures with wedge photometer attached to 14-inch refractor. No dates
Wal1944b		given for measures; default date = decade of publication added.)
Wal1947	Zw -	Wallenquist, A.	1947UppAn...2....2W
Wal1947		Ann. Uppsala Astron. Obs. 2, No.2, 1947
Wal1947		(A catalogue containing results of the two prior series, plus additional measures
Wal1947		with the 14-inch refractor and wedge photometer)
Wal1948	Zw -	Wallenquist, A.	1948UppAn...2....3W
Wal1948		Ann. Uppsala Astron Obs. 2, #3, 1948
Wal1948		(Visual measures of southern double stars made with 17-inch refractor of La Plata
Wal1948		and wedge photometer. No dates listed; default date = decade of publication added)
Wal1950	Zd -	Wallenquist, A.	1950MeUpp..103.....
Wal1950		Medd. Uppsala Obs. #103, 1950
Wal1954	Zw -	Wallenquist, A.	1954UppAn...4Q....W
Wal1954		Ann. Uppsala Astron Obs. 4, #2, 1954
Wal1954		("General Catalogue of Differences in Magnitude of Double Stars". Weighted mean
Wal1954		values from numerous sources)
Wal1958	Zw -	Wallenquist, A.	1958MeUpp..118.....
Wal1958		Medd. Uppsala Obs. #118, 1958

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
12167+3936	STF1624	AB	2005	18	153	5.9	7.28	10.17	A2.5V	D	121642.19+393534.5
12167+3936	STF1624	AB	2010	20	153	5.3	7.28	10.17	A2.5V		121642.19+393534.5
12167+3936	STF1624	AB	2015	20	153	5.9	7.28	10.17	A2.5V		121642.19+393534.5
12167+3936	STF1624	AB	2016	24	153	5.9	7.28	10.17	A2.5V		121642.19+393534.5

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

WDS 12167+3936 STF 1624 AB (HD 106784) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 12167+3936 STF 1624 AB (HD 106784) : MEASURES

No records found.

WDS 12167+3936 (HD 106784) : 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 12167+3936 (HD 106784) : ALADIN DSS IMAGE @ 12^h 16^m 42.19^s +39° 35' 34.5"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 12167+3936 STF 1624 AB (HD 106784) : 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		12167+3936	STF1624	AB	153	5.9
Show		12167+3936	WAL 62	AC	143	161.9
Show		12151+3915	LDS4196		49	32.5	29
Show		12154+4008	A 1999	AB	143	0.1	36
Show		12136+3944	SKF1737		45	1.5	38
Show		12131+3945	SKF2588		218	10.0	43
Show		12125+3940	HDS1727		334	0.5	49
Show		12136+3902	LDS4194		250	15.0	50
Show		12161+4040	STF1622		260	11.6	65
Show		12108+3953	STF1606		143	0.7	71
Show		12120+3850	LDS4188		9	18.5	72
Show		12119+3846	STF1610		331	29.6	75
Show		12110+3857	SKF2586		165	89.0	77
Show		12234+3920	FMR 105		293	9.1	79
Show		12163+4057	LDS4198	AB	76	244.8	82
Show		12163+4057	FMR 103	BC	166	29.4	83
Show		12098+3915	SHN 149		-1	0.1	83
Show		12195+4056	SKF2703		166	47.1	87
Show		12142+3802	KPP2233		8	18.5	99
Show		12174+4116	HJ 2606		161	13.3	102
Show		12095+3838	MET 8		353	9.6	103
Show		12209+4109	CVR 652		49	22.6	105
Show		12156+3749	UC 169	AB	156	45.9	108
Show		12202+3754	STF1632		192	10.1	110
Show		12074+3913	BAR 40		130	1.4	111
Show		12241+3827	KZA 30	AB	296	37.9	111
Show		12241+3827	KZA 30	AC	329	77.9	111
Show		12069+3921	SLW 684		20	8.3	115
Show		12265+3858	LDS4208		75	19.3	122
Show		12112+4121	ES 1248		76	1.9	123
Show		12082+3819	SKF2583		185	6.2	126
Show		12081+3820	ALI 855		121	14.5	127
Show		12061+3850	STF1601		298	2.0	132
Show		12054+3951	SLW 681		228	14.9	132
Show		12165+4149	HJ 1215		13	25.6	134
Show		12140+4146	LDS4195		27	9.4	134
Show		12247+4116	SKF2705		234	11.2	136
Show		12246+3756	KZA 32		38	38.8	136
Show		12273+3839	SKF2706		282	18.6	137
Show		12048+3958	LDS4176		198	233.3	138
Show		12162+4154	ES 124		118	7.7	139
Show		12052+3851	ES 307		354	4.5	141
Show		12091+4128	SKF2700		80	11.6	143
Show		12246+3744	STF1641	BC	210	93.4	145
Show		12246+3744	STF1641	AB	22	16.6	145
Show		12246+3744	STF1641	AC	212	76.4	145
Show		12066+3807	SLW 683		331	9.9	148
Show		12049+3842	HJ 2595		137	27.3	148
Show		12229+3726	SKF2590	AB	190	4.0	149
Show		12229+3726	LNA 1	Aa,Ab	49	0.4	149
Show		12035+3905	RAO 269		243	2.5	157

WDS 12167+3936 : COMPONENTS

	A	B
B	pa=158.9° sep=5.66"
C	pa=150.0° sep=149.60"	pa=149.7° sep=144.02"

12167+3936 A

Name	HD 106784	Coord arcsec 2000	121642.19+393534.5	Mag	7.28	Spectral class	A2.5V (white)
PmRA	-19.00	PmDE	17.0	SAO	62930	HIP	59868
Tycho2	3017-01019-1	HD	106784	GC	16758	BD	BD+40 2516

Tycho2

Tycho2	3017-01019-1	Pflag		RAmdeg	184.17570894	DEmdeg	39.59299211
PmRA	-22.8	PmDE	36.0	E RAmdeg	4	E DEmdeg	4
E pmRA	2.7	E pmDE	2.8	EpRAm	1991.70	EpDEm	1991.59
Num	4	Q RAmdeg	3.8	Q DEmdeg	7.2	Q pmRA	3.8
Q pmDE	7.3	BTmag	7.464	E BTmag	0.015	VTmag	7.281
E VTmag	0.011	Prox	59	TYC	T	HIP	59868
CCDM	A	RAdeg	184.17577639	DEdeg	39.59290972	EpRA 1990	1.77
EpDE 1990	1.67	E RAdeg	4.1	E DEdeg	4.4	Posflg
Corr	0.1

SAO

SAO	62930	DelFlag		RA1950		PmRA1950	-0.0019
DE1950		PmDE1950	0.002	Vmag	7.1	SpType	A2
Double code		Source	70	CatNum	16758	DM	BD+40 2516
DMcomp		BDsup		HD	106784	M HD	0
GC	16758	RA1950rad	3.20356734	DE1950rad	0.69586556	PmRA2000	-0.0017
PmDE2000	0.007

Hipparcos

Catalog	H	HIP	59868	Proxy	H	RAhms	12 16 42.19
DEdms	+39 35 34.5	Vmag	7.21	VarFlag		R Vmag	G
RAdeg	184.176	DEdeg	39.5929	AstroRef	A	Plx	10.53
CCDM	12167+3936	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	153	Rho	5.939	HD	106784	BD	BD+40 2516
CD		CP		Dm number	+40 2516	VIred	0.22
SpType	A3IV	R SpType		Coord arcsec 2000	121642.19+393534.5

Hipparcos 2

HIP	59868	Sn	15	So	3	Nc	2
RArad	3.2144737684	DErad	0.6910266307	Plx	9.19	PmRA	-19.58
PmDE	15.91	E RArad	0.54	E DErad	0.45	E Plx	0.72
E pmRA	0.66	E pmDE	0.57	Hpmag	7.2531	E Hpmag	0.0013
SHp	0.011	VA	0	BV	0.197	E BV	0.02
VI	0.22

CCDM

Ccdm	12167+3936	RComp		Comp	A	Note1
Note2		Discov num		DRAs	0.13	DDEs	-26.9
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	7.2	Sp	A2	PmNote	*
PmRA	-22	PmDE	3	Dm number	+40 2516	Cat1	BD
Name2	62930	Cat2	SAO	HD	106784	M HD
ADS BDS	A 8495	M ADS BDS		N IDS		IDS	12117N4009A
HIC	59868

12167+3936 B

Coord arcsec 2000	121642.37+393529.2		Mag	10.17		PmRA	-19.00		PmDE	17.0
Calc delta mag	2.89		Calc coord	yes

CCDM

Ccdm	12167+3936	RComp		Comp	B	Note1
Note2		Discov num	STF1624	DRAs		DDEs
R dRAs		Year	1831	Theta	150	Rho	6.1
Obs	7	Vmag	10.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A 8495	M ADS BDS		N IDS		IDS	12117N4009B
HIC	59868

12167+3936 C

Coord arcsec 2000	121648.65+393324.9		Mag	9.22		PmRA	-30.00		PmDE	-27.0
Tycho2	3017-01257-1		Calc delta mag	1.94		Calc coord	yes

Tycho2

Tycho2	3017-01257-1	Pflag		RAmdeg	184.21069921	DEmdeg	39.55711388
PmRA	-29.3	PmDE	-27.4	E RAmdeg	11	E DEmdeg	11
E pmRA	1.2	E pmDE	1.2	EpRAm	1990.44	EpDEm	1989.98
Num	7	Q RAmdeg	0.7	Q DEmdeg	0.6	Q pmRA	0.8
Q pmDE	0.7	BTmag	9.783	E BTmag	0.024	VTmag	9.221
E VTmag	0.018	Prox	999	TYC	T	HIP
CCDM		RAdeg	184.21078611	DEdeg	39.55717694	EpRA 1990	1.78
EpDE 1990	1.60	E RAdeg	10.6	E DEdeg	12.2	Posflg
Corr	0.0