20511+0623 STF 2730 (HD 198569)

20^h 51^m 03.77^s +06° 23' 14.1" P.A. 333.00 sep 3.3 mag 8.43,8.57 Sp K1III

Coord 2000	20511+0623	Discov num	STF2730	Comp		Coord arcsec 2000	20 51 03.77 +06 23 14.1
Date first	1825	Date last	2019	Obs	69
Pa first	340	Pa last	332.6	P.A. Now (θ)	332.6°
Sep first	4.0	Sep last	3.333	Sep. Now (ρ)	3.333"
Mag pri	8.43	Mag sec	8.57	delta mag (ΔM)	0.14	Spectral class	K1III (yellow-orange)
Pri motion ra	+004	Sec motion ra	+004
Pri motion dec	-006	Sec motion dec	-006
Notes

Nature of this double is uncertain.

OTHER CATALOGS AND DESIGNATIONS

Name	HD 198569		Constellation	Delphinus		SAO	126289		Tycho2	0524-01132-2
Gaia DR2	1735852131223393792		HD	198569		GC	29073

WDS 20511+0623 STF 2730 (HD 198569) : 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
20511+0623	STF2730		2000	70	334	2.7	8.43	8.57	K1III	D	205103.77+062314.1
20511+0623	STF2730		2010	71	334	3.2	8.43	8.57	K1III	D	205103.77+062314.1
20511+0623	STF2730		2013	74	333	3.3	8.43	8.57	K1III	D	205103.77+062314.1
20511+0623	STF2730		2016	68	334	3.4	8.43	8.57	K1III		205103.77+062314.1
20511+0623	STF2730		2019	69	333	3.3	8.43	8.57	K1III		205103.77+062314.1

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

WDS 20511+0623 STF 2730 (HD 198569) : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20511+0623 STF 2730 (HD 198569) : MEASURES

No records found.

WDS 20511+0623 (HD 198569) : 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 20511+0623 (HD 198569) : ALADIN DSS IMAGE @ 20^h 51^m 03.77^s +06° 23' 14.1"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20511+0623 STF 2730 (HD 198569) : 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		20511+0623	STF2730		333	3.3
Show		20533+0627	TDT2607		281	0.6	34
Show		20519+0544	A 613		324	0.7	41
Show		20539+0620	TDS1107		110	1.6	43
Show		20540+0614	TDT2616		100	0.4	45
Show		20533+0551	UC 4318		168	33.0	47
Show		20496+0538	GWP3002		247	57.2	50
Show		20500+0533	STTA210	AB	127	78.2	54
Show		20500+0533	STTA210	BC	222	12.4	54
Show		20478+0600	BU 65		200	1.5	54
Show		20546+0641	SLN 86		160	4.8	55
Show		20543+0650	TDT2621		4	1.7	56
Show		20487+0706	J 3223		307	2.7	57
Show		20478+0555	TDT2543		263	0.6	57
Show		20511+0526	GCB 59		238	10.1	59
Show		20514+0524	TOB 313		130	20.8	60
Show		20529+0529	GCB 60		152	6.5	62
Show		20527+0527	J 572		138	3.4	62
Show		20527+0720	STF2733		145	40.2	62
Show		20526+0517	GCB 75		101	3.3	69
Show		20464+0618	TDT2533		230	0.7	71
Show		20554+0653	BRT2188		46	4.2	71
Show		20516+0734	A 612		7	2.0	72
Show		20556+0649	TDT2635		259	0.8	72
Show		20559+0646	NSN 739		52	8.8	76
Show		20488+0512	J 2321	AB	151	6.6	79
Show		20488+0512	OSO 135	AC	158	16.6	79
Show		20539+0730	TDT2613		69	0.6	79
Show		20459+0607	TDT2523		80	1.7	80
Show		20516+0747	SKF1868		313	57.7	84
Show		20560+0708	GWP3020		179	6.7	86
Show		20492+0502	HDS2967		190	0.4	87
Show		20455+0553	HDS2954		298	1.0	89
Show		20566+0659	TDT2649		8	0.6	90
Show		20552+0729	GWP3017		96	132.1	90
Show		20561+0535	TDT2642		77	0.6	90
Show		20506+0453	BAL2974		42	3.7	92
Show		20457+0709	BU 834		134	2.4	93
Show		20468+0733	GAA 8		1	0.0	95
Show		20501+0802	GWP3003		228	21.2	100
Show		20562+0728	LDS4861		90	2.0	101
Show		20442+0648	SKF2552	BC	343	11.4	106
Show		20442+0648	SKF2552	AB	60	17.6	106
Show		20442+0648	SKF2552	AC	31	23.1	106
Show		20583+0654	KPP 481		233	3.8	112
Show		20516+0431	KPP1501		50	11.3	113
Show		20588+0600	UC 4347		31	40.4	118
Show		20504+0822	KPP4214		86	4.3	120
Show		20530+0427	TDT2603		281	1.7	121
Show		20484+0426	AG 267		260	6.1	124
Show		20478+0818	UC 4291		7	46.1	125

WDS 20511+0623 : COMPONENTS

	A
B	pa=332.7° sep=3.33"

20511+0623 A

Componente originario normalizzato	AB		Name	HD 198569		Coord arcsec 2000	205103.77+062314.1		Mag	8.43
Spectral class	K1III (yellow-orange)		PmRA	4.00		PmDE	-6.0		Tycho2	0524-01132-2

Tycho2

Tycho2	0524-01132-2	Pflag	P	RAmdeg	312.76570312	DEmdeg	6.38724838
PmRA	3.6	PmDE	-5.6	E RAmdeg	8	E DEmdeg	11
E pmRA	1.8	E pmDE	1.7	EpRAm	1991.46	EpDEm	1990.92
Num	5	Q RAmdeg	0.8	Q DEmdeg	0.7	Q pmRA	0.8
Q pmDE	0.7	BTmag	9.812	E BTmag	0.024	VTmag	8.430
E VTmag	0.014	Prox	34	TYC	T	HIP
CCDM		RAdeg	312.76591444	DEdeg	6.38681417	EpRA 1990	1.74
EpDE 1990	1.51	E RAdeg	7.6	E DEdeg	10.4	Posflg	D
Corr	0.0

CCDM

Ccdm	20511+0623	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.21	DDEs	13.7
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	8.6	Sp	K0	PmNote	*
PmRA	10	PmDE	-8	Dm number	+05 4632	Cat1	BD
Name2	+06 2832	Cat2	AGK2/3	HD	198569	M HD
ADS BDS	A14359	M ADS BDS		N IDS		IDS	20461N0601A
HIC

20511+0623 B

Componente originario normalizzato	AB	Coord arcsec 2000	205103.67+062317.1	Mag	8.57	PmRA	4.00
PmDE	-6.0	SAO	126289	Tycho2	0524-01132-1	HD	198569
GC	29073	DM	BD+05 4632	Calc delta mag	0.14	Calc coord	yes

Tycho2

Tycho2	0524-01132-1	Pflag	P	RAmdeg	312.76570312	DEmdeg	6.38724838
PmRA	3.6	PmDE	-5.6	E RAmdeg	8	E DEmdeg	11
E pmRA	1.8	E pmDE	1.7	EpRAm	1991.46	EpDEm	1990.92
Num	5	Q RAmdeg	0.8	Q DEmdeg	0.7	Q pmRA	0.8
Q pmDE	0.7	BTmag	9.753	E BTmag	0.023	VTmag	8.565
E VTmag	0.015	Prox	34	TYC	T	HIP
CCDM		RAdeg	312.76549806	DEdeg	6.38766389	EpRA 1990	1.71
EpDE 1990	1.44	E RAdeg	7.8	E DEdeg	10.9	Posflg	D
Corr	0.0

SAO

SAO	126289	DelFlag		RA1950		PmRA1950	-0.001
DE1950		PmDE1950	0.001	Vmag	7.9	SpType	K0
Double code		Source	70	CatNum	29073	DM	BD+05 4632
DMcomp		BDsup		HD	198569	M HD	0
GC	29073	RA1950rad	5.44799766	DE1950rad	0.10819972	PmRA2000	-0.0008
PmDE2000	-0.003

CCDM

Ccdm	20511+0623	RComp		Comp	B	Note1
Note2		Discov num	STF2730	DRAs		DDEs
R dRAs		Year	1830	Theta	335	Rho	3.4
Obs	99	Vmag	8.7	Sp		PmNote
PmRA		PmDE		Dm number		Cat1
Name2		Cat2		HD		M HD
ADS BDS	A14359	M ADS BDS		N IDS		IDS	20461N0601B
HIC