18472+3125 STF 2397 (HD 174022)

18^h 47^m 13.09^s +31° 24' 20.2" P.A. 269.00 sep 3.9 mag 7.47,9.08 Sp G3III dist. 271 pc (884 l.y.)

Coord 2000	18472+3125	Discov num	STF2397	Comp		Coord arcsec 2000	18 47 13.09 +31 24 20.2
Date first	1830	Date last	2017	Obs	35
Pa first	267	Pa last	269.2	P.A. Now (θ)	269.2°
Sep first	3.7	Sep last	3.887	Sep. Now (ρ)	3.887"
Mag pri	7.47	Mag sec	9.08	delta mag (ΔM)	1.61	Spectral class	G3III (yellow)
Pri motion ra	+001	Sec motion ra	+001
Pri motion dec	+016	Sec motion dec	+016
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 174022	Constellation	Lyra	SAO	67378	HIP	92178
Tycho2	2638-01560-1	Gaia DR2	2089893913299229056	HD	174022	GC	25750
BD	BD+31 3365	Distance	271	Distance ly	884

WDS 18472+3125 STF 2397 (HD 174022) : 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
18472+3125	STF2397		2005	27	267	3.9	7.47	9.08	G3III		184713.09+312420.2
18472+3125	STF2397		2009	29	267	3.9	7.47	9.08	G3III		184713.09+312420.2
18472+3125	STF2397		2011	32	266	3.9	7.47	9.08	G3III		184713.09+312420.2
18472+3125	STF2397		2015	32	267	3.9	7.47	9.08	G3III		184713.09+312420.2
18472+3125	STF2397		2017	33	269	3.9	7.47	9.08	G3III		184713.09+312420.2

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

WDS 18472+3125 STF 2397 (HD 174022) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 18472+3125 STF 2397 (HD 174022) : MEASURES

No records found.

WDS 18472+3125 (HD 174022) : VIRTUAL EYEPIECE

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Pass over with the mouse cursor to display the catalog designation.

WDS 18472+3125 (HD 174022) : ALADIN DSS IMAGE @ 18^h 47^m 13.09^s +31° 24' 20.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 18472+3125 STF 2397 (HD 174022) : 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		18472+3125	STF2397		269	3.9
Show		18464+3116	HJ 1345		169	11.7	15
Show		18486+3132	TDT1063	AB	106	0.1	20
Show		18486+3132	TDT1063	AC	142	1.1	20
Show		18458+3113	SLE 120		115	6.9	22
Show		18488+3136	LDS1015		301	110.3	24
Show		18475+3149	BRT 262		342	4.8	25
Show		18465+3055	A 254		48	2.3	31
Show		18468+3055	BRT 261		18	4.7	31
Show		18501+3149	A 256		60	2.9	44
Show		18466+3210	HU 935		153	3.1	47
Show		18437+3141	A 253		132	0.7	48
Show		18457+3218	SEI 574		263	18.7	58
Show		18432+3150	UC 3654		195	30.0	58
Show		18518+3105	COU1012		238	0.4	63
Show		18497+3223	J 131		179	2.7	67
Show		18434+3037	SLE 118		45	8.3	68
Show		18526+3131	SEI 576		297	16.0	70
Show		18486+3016	TDT1064		163	0.5	71
Show		18528+3125	A 257	EF	231	6.2	71
Show		18528+3125	A 257	CD,EF	225	28.0	71
Show		18528+3125	A 257	CD	262	0.7	71
Show		18490+3017	TDT1067		342	2.2	72
Show		18528+3125	A 257	AB	94	0.9	72
Show		18528+3125	A 257	A,CD	324	82.4	72
Show		18437+3024	STF2376	AB	63	22.3	76
Show		18437+3024	STF2376	AC	206	85.1	76
Show		18437+3024	SLE 112	AD	168	29.1	76
Show		18499+3233	HO 440		175	18.4	77
Show		18424+3036	LDS1014		13	49.3	78
Show		18530+3058	LEP 159		357	10.5	79
Show		18461+3242	SEI 575		263	28.6	79
Show		18447+3237	LDS4797		28	47.5	80
Show		18409+3132	HJ 1337		151	9.4	81
Show		18454+3005	SLE 119		177	6.6	83
Show		18476+3248	COU1154		57	0.6	84
Show		18405+3139	HO 437	AB	140	0.3	88
Show		18405+3139	HO 437	AC	272	39.9	88
Show		18405+3139	HO 437	AE	288	22.1	88
Show		18405+3139	HO 437	CD	347	4.5	88
Show		18425+3231	HJ 1340		79	15.4	89
Show		18469+3254	KPP4121		75	6.5	90
Show		18498+3249	H 5 40	CD	212	18.5	91
Show		18498+3249	H 5 40	AB	76	33.7	91
Show		18498+3249	H 5 40	AC	120	57.5	91
Show		18498+3249	WAL 95	AE	350	80.0	91
Show		18498+3249	WAL 95	AF	349	70.5	91
Show		18409+3044	SLE 114		145	4.3	91
Show		18541+3103	ES 2421		69	7.7	92
Show		18414+3032	TDT 998		315	0.8	92
Show		18442+3000	TDT1022		128	0.6	94

WDS 18472+3125 : COMPONENTS

	A
B	pa=269.1° sep=3.32"

18472+3125 A

Componente originario normalizzato	AB	Name	HD 174022	Coord arcsec 2000	184713.09+312420.2	Mag	7.47
Spectral class	G3III (yellow)	PmRA	1.00	PmDE	16.0	SAO	67378
HIP	92178	Tycho2	2638-01560-1	HD	174022	GC	25750
BD	BD+31 3365

Tycho2

Tycho2	2638-01560-1	Pflag		RAmdeg	281.80455803	DEmdeg	31.40561423
PmRA	14.0	PmDE	19.6	E RAmdeg	6	E DEmdeg	5
E pmRA	1.6	E pmDE	1.6	EpRAm	1991.17	EpDEm	1991.47
Num	4	Q RAmdeg	1.3	Q DEmdeg	0.8	Q pmRA	1.3
Q pmDE	0.9	BTmag	8.584	E BTmag	0.017	VTmag	7.469
E VTmag	0.011	Prox	39	TYC	T	HIP	92178
CCDM	A	RAdeg	281.80451861	DEdeg	31.40556833	EpRA 1990	1.33
EpDE 1990	1.58	E RAdeg	5.8	E DEdeg	4.8	Posflg
Corr	0.1

SAO

SAO	67378	DelFlag		RA1950		PmRA1950	0.0004
DE1950		PmDE1950	0.016	Vmag	7.1	SpType	G5
Double code		Source	70	CatNum	25750	DM	BD+31 3365
DMcomp		BDsup		HD	174022	M HD	0
GC	25750	RA1950rad	4.91013622	DE1950rad	0.54715335	PmRA2000	0.0006
PmDE2000	0.016

Hipparcos

Catalog	H	HIP	92178	Proxy	H	RAhms	18 47 13.08
DEdms	+31 24 20.0	Vmag	7.22	VarFlag		R Vmag	G
RAdeg	281.805	DEdeg	31.4056	AstroRef	A	Plx	3.99
CCDM	18472+3124	N CCDM	I	Nsys	1	Ncomp	2
MultFlag	C	Source		Qual	A	M HIP	AB
Theta	267	Rho	3.909	HD	174022	BD	BD+31 3365
CD		CP		Dm number	+31 3365	VIred	0.87
SpType	G8II+...	R SpType		Coord arcsec 2000	184713.08+312420.0

Hipparcos 2

HIP	92178	Sn	15	So	3	Nc	2
RArad	4.9184167212	DErad	0.5481305623	Plx	3.69	PmRA	1.22
PmDE	15.73	E RArad	0.41	E DErad	0.44	E Plx	0.58
E pmRA	0.47	E pmDE	0.51	Hpmag	7.3603	E Hpmag	0.0011
SHp	0.01	VA	0	BV	0.89	E BV	0.015
VI	0.87

18472+3125 B

Componente originario normalizzato	AB		Coord arcsec 2000	184712.83+312420.1		Mag	9.08		PmRA	1.00
PmDE	16.0		Calc delta mag	1.61		Calc coord	yes