20258-0818 STF 2678 (HD 194425)

20^h 25^m 50.00^s -08° 18' 09.7" P.A. 310.00 sep 3.4 mag 9.85,10.22 Sp G5

Coord 2000	20258-0818	Discov num	STF2678	Comp		Coord arcsec 2000	20 25 50.00 -08 18 09.7
Date first	1831	Date last	2016	Obs	33
Pa first	321	Pa last	310.4	P.A. Now (θ)	310.4°
Sep first	3.5	Sep last	3.373	Sep. Now (ρ)	3.373"
Mag pri	9.85	Mag sec	10.22	delta mag (ΔM)	0.37	Spectral class	G5 (yellow)
Pri motion ra	+012	Sec motion ra	+010
Pri motion dec	-056	Sec motion dec	-060
Notes	V (Proper motion indicates physical)

rPM=0.074 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 194425		Constellation	Aquila		SAO	144413		Tycho2	5754-00091-1
Gaia DR2	6906039925703317248		HD	194425		GC	28409

WDS 20258-0818 STF 2678 (HD 194425) : 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
20258-0818	STF2678		2000	27	310	3.3	9.85	10.22	G5	D	202550.00-081809.7
20258-0818	STF2678		2011	28	311	3.1	9.85	10.22	G5	D	202550.00-081809.7
20258-0818	STF2678		2016	30	310	3.4	9.85	10.22	G5		202550.00-081809.7

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

WDS 20258-0818 STF 2678 (HD 194425) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20258-0818 STF 2678 (HD 194425) : MEASURES

No records found.

WDS 20258-0818 (HD 194425) : VIRTUAL EYEPIECE

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

WDS 20258-0818 (HD 194425) : ALADIN DSS IMAGE @ 20^h 25^m 50.00^s -08° 18' 09.7"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20258-0818 STF 2678 (HD 194425) : 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		20258-0818	STF2678		310	3.4	1
Show		20247-0846	RST4062		354	0.0	33
Show		20238-0839	KPP1896		157	14.8	38
Show		20275-0734	LDS5906		239	2.1	50
Show		20292-0759	UC 4197	AB	111	15.1	54
Show		20293-0802	HLD 38		298	2.3	54
Show		20270-0726	GWP2951		78	50.0	56
Show		20217-0745	HO 277		68	3.0	70
Show		20305-0745	J 2312		123	5.4	76
Show		20301-0906	J 1706		285	6.4	80
Show		20208-0745	SCJ 25		215	2.8	83
Show		20198-0827	LDS1468		31	9.0	91
Show		20249-0648	A 2998		338	0.5	92
Show		20289-0652	HJ 918		326	7.7	97
Show		20244-0638	WIS 338		224	13.3	103
Show		20296-0650	DOO 85		246	3.7	104
Show		20251-1004	LDS4840		298	5.5	106
Show		20280-0959	UC 4192		205	33.8	106
Show		20239-1001	UC 4165		312	15.4	107
Show		20328-0854	HLD 161		73	1.3	109
Show		20203-0935	GWP2940		264	408.2	113
Show		20182-0816	KPP4190		349	2.5	114
Show		20317-0940	J 1396	AB	118	6.8	121
Show		20317-0940	HEI9016	AC	44	8.3	121
Show		20286-0622	J 1390		348	8.1	125
Show		20293-0624	J 1392		317	3.4	125
Show		20326-0937	J 1398		359	6.1	128
Show		20187-0710	J 2309		323	6.1	128
Show		20261-1026	UC 4179		81	30.6	128
Show		20302-0621	J 1394		147	10.9	135
Show		20324-0951	BU 668	AB	48	1.2	135
Show		20324-0951	BU 668	AC	209	121.9	135
Show		20349-0822	UC 4221		312	17.5	135
Show		20246-0602	UC 4169		50	54.1	137
Show		20165-0817	UC 4134		79	46.5	140
Show		20196-0632	LDS4837		145	28.9	141
Show		20318-0629	J 1397		347	3.7	142
Show		20293-0605	GWP2960		285	262.4	143
Show		20255-1043	RST4664		295	2.0	145
Show		20348-0714	FAL 69		53	14.2	148
Show		20161-0744	HO 589	AB	329	15.7	148
Show		20161-0744	HO 589	AC	200	55.3	148
Show		20169-0712	J 2306		62	5.2	150
Show		20169-0710	UC 4136		79	55.4	150
Show		20165-0719	UC 4133		199	58.8	152
Show		20314-1023	J 1707		34	9.5	153
Show		20166-0712	JNN 125		273	0.2	153
Show		20251-0539	TDT2254		106	1.0	160
Show		20188-0614	RST4660		106	0.5	162
Show		20211-0549	UC 4155		346	52.8	166
Show		20189-0608	RST4661		282	2.1	166

WDS 20258-0818 : COMPONENTS

	A
B	pa=310.7° sep=3.35"

20258-0818 A

Componente originario normalizzato	AB	Name	HD 194425	Coord arcsec 2000	202550.00-081809.7	Mag	9.85
Spectral class	G5 (yellow)	PmRA	12.00	PmDE	-56.0	SAO	144413
Tycho2	5754-00091-1	HD	194425	GC	28409	DM	BD-08 5357

Tycho2

Tycho2	5754-00091-1	Pflag		RAmdeg	306.45832278	DEmdeg	-8.30269952
PmRA	26.7	PmDE	-64.7	E RAmdeg	22	E DEmdeg	27
E pmRA	1.6	E pmDE	1.6	EpRAm	1989.46	EpDEm	1988.30
Num	6	Q RAmdeg	1.2	Q DEmdeg	0.9	Q pmRA	1.2
Q pmDE	0.9	BTmag	10.687	E BTmag	0.045	VTmag	9.845
E VTmag	0.034	Prox	33	TYC	T	HIP
CCDM		RAdeg	306.45826028	DEdeg	-8.30254444	EpRA 1990	1.64
EpDE 1990	1.38	E RAdeg	22.1	E DEdeg	26.6	Posflg	D
Corr	-0.2

SAO

SAO	144413	DelFlag		RA1950		PmRA1950	0.0015
DE1950		PmDE1950	-0.041	Vmag	9.2	SpType	G5
Double code		Source	70	CatNum	28409	DM	BD-08 5357
DMcomp		BDsup		HD	194425	M HD	0
GC	28409	RA1950rad	5.33693233	DE1950rad	-0.14775318	PmRA2000	0.0017
PmDE2000	-0.042

CCDM

Ccdm	20258-0818	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.91	DDEs	-7.5
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.9	Sp	G5	PmNote	*
PmRA	23	PmDE	-41	Dm number	-08 5357	Cat1	BD
Name2	144413	Cat2	SAO	HD	194425	M HD
ADS BDS	A13836	M ADS BDS		N IDS		IDS	20204S0838A
HIC

20258-0818 B

Componente originario normalizzato	AB		Coord arcsec 2000	202549.83-081807.5		Mag	10.22		PmRA	10.00
PmDE	-60.0		Calc delta mag	0.37		Calc coord	yes

CCDM

Ccdm	20258-0818	RComp		Comp	B	Note1
Note2		Discov num	STF2678	DRAs		DDEs
R dRAs		Year	1937	Theta	311	Rho	3.6
Obs	9	Vmag	10.1	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A13836	M ADS BDS		N IDS		IDS	20204S0838B
HIC