19168+6742 STF 2514 AC

19^h 16^m 51.03^s +67° 41' 33.7" P.A. 255.00 sep 138.9 mag 9.60,10.83 Sp K0

Coord 2000	19168+6742	Discov num	STF2514	Comp	AC	Coord arcsec 2000	19 16 51.03 +67 41 33.7
Date first	1894	Date last	2020	Obs	14
Pa first	253	Pa last	254.9	P.A. Now (θ)	254.9°
Sep first	138.9	Sep last	138.888	Sep. Now (ρ)	138.888"
Mag pri	9.60	Mag sec	10.83	delta mag (ΔM)	1.23	Spectral class	K0 (yellow-orange)
Pri motion ra	+007	Sec motion ra	+002
Pri motion dec	-040	Sec motion dec	+015
Notes	N (See Notes)

rPM=1.36

This double is not physical.

19168+6742 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 181798	18265	19 16 51 +67 41 34	STF 2514 AB	2020	40	349	24.0	9.60	11.30	1.70
Show		18265	19 16 51 +67 41 34	STF 2514 AC	2020	14	255	138.9	9.60	10.83	1.23		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation	Draco		SAO	18265		Tycho2	4444-01778-1		Gaia DR2	2261161158764420992
HD	181798

WDS 19168+6742 STF 2514 AC : NOTES

discov_num	notes	refcode
STF2514	D is BD+67@1142. Delta(RA) +104"; delta(DEC) -162".

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
19168+6742	STF2514	AC	1999	7	255	138.1	9.60	10.83		N D	191651.03+674133.7
19168+6742	STF2514	AC	2003	8	255	138.1	9.60	10.83		N D	191651.03+674133.7
19168+6742	STF2514	AC	2015	9	255	137.9	9.60	10.83	K0	N	191651.03+674133.7
19168+6742	STF2514	AC	2020	14	255	138.9	9.60	10.83	K0	N	191651.03+674133.7

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

WDS 19168+6742 STF 2514 AC : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 19168+6742 STF 2514 AC : MEASURES

No records found.

WDS 19168+6742 : 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 19168+6742 : ALADIN DSS IMAGE @ 19^h 16^m 51.03^s +67° 41' 33.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 19168+6742 STF 2514 AC : 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		19168+6742	STF2514	AB	349	24.0
Show		19168+6742	STF2514	AC	255	138.9
Show		19173+6731	UC 3877		356	32.5	12
Show		19153+6750	HAU 3		237	6.6	14
Show		19146+6733	MLB 356		20	4.1	16
Show		19143+6754	STF2508		116	17.7	20
Show	Altais	19126+6740	BUP 186	AB	341	80.4	25
Show	Altais	19126+6740	BUP 186	AC	21	131.2	25
Show		19170+6808	MLR 88		210	0.6	27
Show		19106+6749	LDS2430	AB	38	18.6	38
Show		19106+6749	DAM1456	AC	19	8.8	38
Show		19141+6707	HDS2722		25	0.1	39
Show		19147+6830	TDT1314		50	0.5	50
Show		19079+6756	MLB1082		39	12.9	53
Show		19126+6829	LDS2431		148	9.4	54
Show		19106+6700	MLB 288		288	3.9	55
Show		19133+6647	MLR 98		286	0.5	58
Show		19255+6820	LDS2436		325	3.7	63
Show		19067+6716	LDS2760		220	23.5	65
Show		19107+6646	TDS 975		275	1.0	67
Show		19078+6658	UC 3809		108	62.4	69
Show		19131+6635	MLB 289	AB	285	32.0	70
Show		19131+6635	MLB 289	BC	359	5.7	70
Show		19263+6658	HU 944		356	1.5	71
Show		19257+6653	UC 3930		235	33.0	71
Show		19303+6719	LDS2441		159	9.9	81
Show		19138+6620	UC 3856	AB	259	42.3	84
Show		19138+6620	UC 3856	AC	299	45.4	84
Show		19138+6620	UC 3856	BC	3	30.4	85
Show		19014+6737	UC 3764		311	35.3	89
Show		19314+6712	TDT1519		84	0.4	89
Show		19244+6904	TDT1431		56	0.7	93
Show		19063+6632	TDT1225		96	2.4	93
Show		19022+6702	LDS2427		88	3.0	94
Show		19327+6811	LDS2444		175	11.9	95
Show		19128+6609	UC 3848		3	51.1	96
Show		19247+6907	LDS2435		24	10.8	97
Show		19256+6907	TOI1401		45	0.2	99
Show		19330+6819	LDS2445			43.0	99
Show		19286+6859	LDS2438		210	9.4	101
Show		19348+6748	MLB 290	AB	78	19.3	103
Show		19348+6748	MLB 290	BC	308	4.1	103
Show		19100+6606	LDS2429		136	54.4	104
Show		19324+6648	LDS2443		245	11.2	104
Show		19349+6804	MLB 291		170	3.9	105
Show		19300+6630	BU 1335	BC	24	2.2	105
Show		19300+6630	STF2546	AB	10	8.5	105
Show		19217+6600	TDS 985		159	0.9	106
Show		19320+6636	LDS2442		180	7.3	109
Show		19123+6928	TDT1292		59	2.4	110
Show		19361+6755	MLB1083		162	8.8	111

WDS 19168+6742 : COMPONENTS

	A	B
B	pa=355.9° sep=23.68"
C	pa=234.6° sep=62.46"	pa=219.4° sep=77.45"

19168+6742 A

Name	HD 181798	Coord arcsec 2000	191651.03+674133.7	Mag	9.6	Spectral class	K0 (yellow-orange)
PmRA	7.00	PmDE	-40.0	SAO	18265	Tycho2	4444-01778-1
HD	181798	GC	26640	DM	BD+67 1135

Tycho2

Tycho2	4444-01778-1	Pflag		RAmdeg	289.21262413	DEmdeg	67.69269249
PmRA	8.5	PmDE	-40.2	E RAmdeg	13	E DEmdeg	13
E pmRA	1.3	E pmDE	1.3	EpRAm	1990.28	EpDEm	1990.03
Num	9	Q RAmdeg	1.1	Q DEmdeg	1.8	Q pmRA	1.0
Q pmDE	1.7	BTmag	10.121	E BTmag	0.026	VTmag	9.599
E VTmag	0.021	Prox	999	TYC	T	HIP
CCDM		RAdeg	289.21257194	DEdeg	67.69278444	EpRA 1990	1.76
EpDE 1990	1.67	E RAdeg	13.6	E DEdeg	14.2	Posflg
Corr	0.0

SAO

SAO	18265	DelFlag		RA1950		PmRA1950	0.0022
DE1950		PmDE1950	-0.033	Vmag	9.4	SpType	K0
Double code		Source	70	CatNum	26640	DM	BD+67 1135
DMcomp		BDsup		HD	181798	M HD	0
GC	26640	RA1950rad	5.0476886	DE1950rad	1.17987002	PmRA2000	0.0031
PmDE2000	-0.035

19168+6742 B

Coord arcsec 2000	191650.74+674157.3		Mag	11.3		PmRA	30.00		PmDE	85.0
Calc delta mag	1.7		Calc coord	yes

19168+6742 C

Coord arcsec 2000	191642.09+674057.5		Mag	10.83		PmRA	2.00		PmDE	15.0
Calc delta mag	1.23		Calc coord	yes