20407+4321 STF 2719

20^h 40^m 43.40^s +43° 21' 00.2" P.A. 142.00 sep 14.2 mag 9.18,11.02 Sp G5

Coord 2000	20407+4321	Discov num	STF2719	Comp		Coord arcsec 2000	20 40 43.40 +43 21 00.2
Date first	1892	Date last	2016	Obs	17
Pa first	144	Pa last	141.7	P.A. Now (θ)	141.7°
Sep first	14.3	Sep last	14.16	Sep. Now (ρ)	14.16"
Mag pri	9.18	Mag sec	11.02	delta mag (ΔM)	1.84	Spectral class	G5 (yellow)
Pri motion ra	+146	Sec motion ra	+144
Pri motion dec	+071	Sec motion dec	+069
Notes	T (Parallax indicates physical)

rPM=0.017 (< 0.3, Physical double)

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Cygnus

Tycho2

3178-01204-1

Gaia DR2

2069600016724511104

WDS 20407+4321 STF 2719 : 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
20407+4321	STF2719		1998	7	141	14.1	9.18	11.02	G5	D	204043.40+432100.2
20407+4321	STF2719		2002	8	142	14.1	9.18	11.02	G5	D	204043.40+432100.2
20407+4321	STF2719		2014	9	141	14.1	9.18	11.02	G5		204043.40+432100.2
20407+4321	STF2719		2015	11	142	14.2	9.18	11.02	G5	W	204043.40+432100.2
20407+4321	STF2719		2016	17	142	14.2	9.18	11.02	G5	T	204043.40+432100.2

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

WDS 20407+4321 STF 2719 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20407+4321 STF 2719 : MEASURES

No records found.

WDS 20407+4321 : VIRTUAL EYEPIECE

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WDS 20407+4321 : ALADIN DSS IMAGE @ 20^h 40^m 43.40^s +43° 21' 00.2"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20407+4321 STF 2719 : NEIGHBORHOODS

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

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		20407+4321	STF2719		142	14.2
Show		20413+4314	BRT2270		207	4.4	10
Show		20394+4318	COU2539		64	0.4	16
Show		20393+4315	DAM 217		281	9.7	17
Show		20415+4336	BVD 270		76	26.0	18
Show		20405+4343	COU2540		117	0.4	23
Show		20404+4345	GII 99		220	3.6	25
Show		20429+4311	ES 1446		134	4.5	26
Show		20416+4350	ES 1445		180	6.2	31
Show		20437+4318	ES 1447		308	2.4	33
Show		20400+4405	KPP2366		145	20.3	45
Show		20449+4332	ES 1448		142	2.0	47
Show		20425+4235	GRV 369		26	24.8	50
Show		20408+4231	CBL 84		160	16.0	50
Show		20452+4337	ES 1449		57	6.7	52
Show		20455+4338	A 611		176	0.3	55
Show		20375+4233	A 398		22	1.7	60
Show		20399+4221	FMR 159		76	135.7	62
Show		20416+4424	COU2541		25	0.4	65
Show		20348+4334	ES 1444	AB	80	4.9	67
Show		20348+4334	ES 1444	AC	95	15.2	67
Show		20353+4251	A 397	AB	182	1.3	67
Show		20353+4251	A 397	AB,C	302	53.7	67
Show		20396+4215	GNS 11		182	3.7	68
Show		20373+4417	TDT2429		84	0.5	68
Show		20461+4353	GRV 378		135	35.3	68
Show		20470+4335	GRV 380	AB	16	21.4	71
Show		20470+4335	GRV 380	AC	312	44.6	71
Show		20342+4327	A 396	AB	140	1.7	71
Show		20342+4327	A 396	AC	115	34.2	71
Show		20342+4327	A 396	AD	219	33.4	71
Show		20474+4314	TDT2539		77	0.5	74
Show		20432+4431	COU2422		236	1.3	75
Show		20461+4410	BRT2275		10	2.8	76
Show		20473+4345	COU2425		58	0.2	76
Show		20449+4425	ES 1332		325	7.0	78
Show		20417+4202	ES 1570		118	4.7	79
Show		20340+4352	TDT2377		210	0.5	80
Show		20476+4347	CHN 28		57	5.0	80
Show		20396+4202	A 399		82	0.9	81
Show		20386+4438	ES 667		185	9.8	81
Show		20442+4206	ES 1572		141	5.8	86
Show		20345+4223	TDT2385		211	0.8	90
Show		20472+4225	STT 414	AB	95	9.9	91
Show		20472+4225	BOT 4	AC	16	104.9	91
Show		20349+4216	TDT2393		292	0.8	92
Show		20333+4236	ES 1569		273	3.0	94
Show		20472+4427	COU2424		255	0.5	97
Show		20322+4351	TDT2344		338	0.8	98
Show		20433+4456	ES 2699		296	40.1	99
Show		20432+4458	BKO 159		37	13.2	101

WDS 20407+4321 : COMPONENTS

	A
B	pa=150.1° sep=12.81"

20407+4321 A

Componente originario normalizzato	AB		Coord arcsec 2000	204043.40+432100.2		Mag	9.18		Spectral class	G5 (yellow)
PmRA	146.00		PmDE	71.0		Tycho2	3178-01204-1		DM	BD+42 3827

Tycho2

Tycho2	3178-01204-1	Pflag		RAmdeg	310.18083364	DEmdeg	43.35004345
PmRA	146.8	PmDE	70.2	E RAmdeg	11	E DEmdeg	12
E pmRA	1.0	E pmDE	1.0	EpRAm	1990.05	EpDEm	1989.88
Num	7	Q RAmdeg	0.6	Q DEmdeg	1.3	Q pmRA	0.7
Q pmDE	1.4	BTmag	9.992	E BTmag	0.025	VTmag	9.182
E VTmag	0.017	Prox	141	TYC	T	HIP
CCDM		RAdeg	310.18036222	DEdeg	43.34987944	EpRA 1990	1.61
EpDE 1990	1.57	E RAdeg	11.3	E DEdeg	12.1	Posflg
Corr	0.0

CCDM

Ccdm	20407+4321	RComp		Comp	A	Note1
Note2		Discov num		DRAs	1.26	DDEs	-0.5
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.1	Sp		PmNote	*
PmRA	130	PmDE	62	Dm number	+42 3827	Cat1	BD
Name2	+43 1870	Cat2	AGK2/3	HD		M HD
ADS BDS	B10438	M ADS BDS		N IDS		IDS	20372N4300A
HIC

20407+4321 B

Componente originario normalizzato	AB		Coord arcsec 2000	204043.99+432049.1		Mag	11.02		PmRA	144.00
PmDE	69.0		Tycho2	3178-01214-1		Calc delta mag	1.84		Calc coord	yes

Tycho2

Tycho2	3178-01214-1	Pflag		RAmdeg	310.18415906	DEmdeg	43.34696202
PmRA	144.5	PmDE	67.9	E RAmdeg	49	E DEmdeg	54
E pmRA	1.5	E pmDE	1.4	EpRAm	1979.27	EpDEm	1974.45
Num	4	Q RAmdeg	1.3	Q DEmdeg	1.3	Q pmRA	1.3
Q pmDE	1.3	BTmag	12.043	E BTmag	0.128	VTmag	11.018
E VTmag	0.075	Prox	141	TYC	T	HIP
CCDM		RAdeg	310.18369722	DEdeg	43.34680278	EpRA 1990	1.63
EpDE 1990	1.56	E RAdeg	51.7	E DEdeg	59.2	Posflg
Corr	-0.2

CCDM

Ccdm	20407+4321	RComp		Comp	B	Note1
Note2		Discov num	STF2719	DRAs		DDEs
R dRAs		Year	1906	Theta	141	Rho	14.1
Obs	1	Vmag	10.5	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	B10438	M ADS BDS	N	N IDS		IDS	20372N4300B
HIC