20344-0029 STF 2697 (HD 195945)

20^h 34^m 23.12^s -00° 28' 43.6" P.A. 358.00 sep 29.8 mag 7.82,10.07 Sp K2 dist. 460.83 pc (1503.23 l.y.)

Coord 2000	20344-0029	Discov num	STF2697	Comp		Coord arcsec 2000	20 34 23.12 -00 28 43.6
Date first	1848	Date last	2015	Obs	18
Pa first	2	Pa last	357.5	P.A. Now (θ)	357.5°
Sep first	32.1	Sep last	29.776	Sep. Now (ρ)	29.776"
Mag pri	7.82	Mag sec	10.07	delta mag (ΔM)	2.25	Spectral class	K2 (yellow-orange)
Pri motion ra	+012	Sec motion ra	-007
Pri motion dec	-003	Sec motion dec	-009
Notes	Z (Parallax indicates components are physical)

rPM=1.611

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 195945	Constellation	Aquila	SAO	144577	HIP	101520
Tycho2	5176-00909-1	HD	195945	GC	28623	BD	BD-00 4043
Distance	460.83	Distance ly	1503.23

WDS 20344-0029 STF 2697 (HD 195945) : 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
20344-0029	STF2697		2008	13	357	29.6	7.82	10.07	K2	ZD	203423.12-002843.6
20344-0029	STF2697		2010	15	357	29.9	7.82	10.07	K2	Z	203423.12-002843.6
20344-0029	STF2697		2015	16	358	29.8	7.82	10.07	K2	Z	203423.12-002843.6

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

WDS 20344-0029 STF 2697 (HD 195945) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20344-0029 STF 2697 (HD 195945) : MEASURES

No records found.

WDS 20344-0029 (HD 195945) : 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 20344-0029 (HD 195945) : ALADIN DSS IMAGE @ 20^h 34^m 23.12^s -00° 28' 43.6"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20344-0029 STF 2697 (HD 195945) : 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		20344-0029	STF2697		358	29.8
Show		20350+0033	J 1399		276	2.2	9
Show		20352+0019	RST5157		293	1.8	16
Show		20342-0045	BAL 613		145	6.4	18
Show		20354-0057	BAL 614		80	18.2	33
Show		20323+0049	UC 4207		297	31.1	37
Show		20322+0012	GWP2965		69	27.8	38
Show		20373+0041	UC 4236		284	17.8	46
Show		20313+0020	BAL 923		146	3.5	47
Show		20373-0039	J 2317		120	6.1	47
Show		20329+0113	BAL1216		157	15.1	51
Show		20300+0023	JNN 283		354	0.4	66
Show		20384+0000	J 2318	AB	150	5.6	68
Show		20384+0000	J 2318	AC	119	14.9	68
Show		20390-0035	BVD 131		133	30.3	70
Show		20367+0132	GRV 361		103	28.0	73
Show		20394+0029	HJ 2984	AB	225	65.0	76
Show		20394+0029	HJ 2984	AC	30	65.9	76
Show		20394+0029	FYM 187	AE	118	35.2	76
Show		20394+0029	FYM 187	CD	122	20.2	77
Show		20396+0025	UC 4246		52	20.8	78
Show		20372+0135	J 2574		158	5.0	78
Show		20373+0134	GWP2973		106	21.3	79
Show		20366+0123	HJ 5513	AB	93	11.9	82
Show		20366+0123	HJ 5513	AC	284	28.7	82
Show		20366+0123	HJ 5513	AD	89	42.5	82
Show		20289-0016	RST5156		329	1.2	84
Show		20393+0112	BAL1217		2	7.9	86
Show		20401-0009	GRV1232		144	24.2	88
Show		20403+0041	A 2284		287	4.8	90
Show		20389+0128	KPP3420		241	6.3	90
Show		20405-0023	SKF1768		18	1.5	93
Show		20283+0052	FSM 2		118	0.0	94
Show		20351+0202	BAL1564		268	4.8	95
Show		20330+0201	TDT2361		37	0.5	95
Show		20377+0152	J 3255		327	3.7	97
Show		20406-0002	SLW1226		226	166.7	98
Show		20280-0009	HJ 916	AB	260	14.8	98
Show		20409-0036	A 874		345	1.9	98
Show		20280-0009	SHY 333	BC	149	999.9	98
Show		20400+0118	A 2283	AB	350	2.3	99
Show		20368-0102	J 567		308	2.2	99
Show		20293+0132	BAL1561		8	15.8	99
Show		20291+0135	GWP2956	AB	250	16.5	103
Show		20291+0135	GWP2957	AC	258	172.4	103
Show		20387+0156	J 569		316	3.0	106
Show		20302+0156	BAL1562		308	9.0	108
Show		20416+0017	UC 4258	AB	3	46.5	109
Show		20275+0107	J 560		188	4.2	110
Show		20351+0218	UC 4224		220	16.1	111
Show		20414+0105	GWP2985		352	30.4	112

WDS 20344-0029 : COMPONENTS

	A
B	pa=357.5° sep=29.78"

20344-0029 A

Componente originario normalizzato	AB	Name	HD 195945	Coord arcsec 2000	203423.12-002843.6	Mag	7.82
Spectral class	K2 (yellow-orange)	PmRA	12.00	PmDE	-3.0	SAO	144577
HIP	101520	Tycho2	5176-00909-1	HD	195945	GC	28623
BD	BD-00 4043

Tycho2

Tycho2	5176-00909-1	Pflag		RAmdeg	308.59633224	DEmdeg	-0.47876745
PmRA	10.2	PmDE	-3.8	E RAmdeg	6	E DEmdeg	7
E pmRA	0.8	E pmDE	0.9	EpRAm	1990.24	EpDEm	1989.78
Num	18	Q RAmdeg	0.8	Q DEmdeg	1.0	Q pmRA	0.9
Q pmDE	1.0	BTmag	9.703	E BTmag	0.024	VTmag	7.820
E VTmag	0.012	Prox	301	TYC	T	HIP	101520
CCDM		RAdeg	308.59630833	DEdeg	-0.47875833	EpRA 1990	1.54
EpDE 1990	1.23	E RAdeg	6.0	E DEdeg	7.4	Posflg
Corr	-0.2

SAO

SAO	144577	DelFlag		RA1950		PmRA1950	0.0009
DE1950		PmDE1950	-0.002	Vmag	7.9	SpType	K2
Double code		Source	70	CatNum	28623	DM	BD-00 4043
DMcomp		BDsup		HD	195945	M HD	0
GC	28623	RA1950rad	5.3747995	DE1950rad	-0.01136486	PmRA2000	0.0011
PmDE2000	-0.005

Hipparcos

Catalog	H	HIP	101520	Proxy		RAhms	20 34 23.11
DEdms	-00 28 43.5	Vmag	7.77	VarFlag		R Vmag	G
RAdeg	308.596	DEdeg	-0.478759	AstroRef		Plx	3.89
CCDM	20344-0029	N CCDM	I	Nsys	2	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	195945	BD	BD-00 4043
CD		CP		Dm number	-00 4043	VIred	1.49
SpType	K2	R SpType		Coord arcsec 2000	203423.11-002843.5

Hipparcos 2

HIP	101520	Sn	5	So	0	Nc	1
RArad	5.3860216951	DErad	-0.0083559134	Plx	2.17	PmRA	11.53
PmDE	-2.62	E RArad	0.83	E DErad	0.77	E Plx	1.01
E pmRA	1.32	E pmDE	1.05	Hpmag	7.7693	E Hpmag	0.0016
SHp	0.012	VA	0	BV	1.245	E BV	0.197
VI	1.49

CCDM

Ccdm	20344-0029	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-0.89	DDEs	16.7
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.1	Sp	K2	PmNote	*
PmRA	7	PmDE	4	Dm number	-00 4043	Cat1	BD
Name2	-00 2659	Cat2	AGK2/3	HD	195945	M HD
ADS BDS	B10320	M ADS BDS		N IDS		IDS	20292S0049A
HIC	101520

20344-0029 B

Componente originario normalizzato	AB		Coord arcsec 2000	203423.03+002913.3		Mag	10.07		PmRA	-7.00
PmDE	-9.0		Calc delta mag	2.25		Calc coord	yes

CCDM

Ccdm	20344-0029	RComp		Comp	B	Note1
Note2		Discov num	STF2697	DRAs		DDEs
R dRAs		Year	1848	Theta	002	Rho	30.4
Obs	6	Vmag	10.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	B10320	M ADS BDS	N	N IDS		IDS	20292S0049B
HIC	101521