20541+1306 STF 2734

20^h 54^m 03.68^s +13° 06' 14.8" P.A. 227.00 sep 24.4 mag 9.39,9.82 Sp G0

Coord 2000	20541+1306	Discov num	STF2734	Comp		Coord arcsec 2000	20 54 03.68 +13 06 14.8
Date first	1829	Date last	2015	Obs	54
Pa first	182	Pa last	227.2	P.A. Now (θ)	227.2°
Sep first	28.5	Sep last	24.37	Sep. Now (ρ)	24.37"
Mag pri	9.39	Mag sec	9.82	delta mag (ΔM)	0.43	Spectral class	G0 (yellow)
Pri motion ra	+048	Sec motion ra	-045
Pri motion dec	-007	Sec motion dec	+057
Notes	L (Linear solution)

rPM=1.555

This double is not physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Delphinus

Tycho2

1098-00695-1

Gaia DR2

1758089960053440000

WDS 20541+1306 STF 2734 : 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
20541+1306	STF2734		2007	40	225	23.9	9.39	9.82	G0	LD	205403.68+130614.8
20541+1306	STF2734		2008	41	225	24.0	9.39	9.82	G0	LD	205403.68+130614.8
20541+1306	STF2734		2010	44	226	24.0	9.39	9.82	G0	LD	205403.68+130614.8
20541+1306	STF2734		2015	46	227	24.4	9.39	9.82	G0	L	205403.68+130614.8

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

WDS 20541+1306 STF 2734 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 20541+1306 STF 2734 : MEASURES

No records found.

WDS 20541+1306 : VIRTUAL EYEPIECE

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

WDS 20541+1306 : ALADIN DSS IMAGE @ 20^h 54^m 03.68^s +13° 06' 14.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 20541+1306 STF 2734 : 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		20541+1306	STF2734		227	24.4
Show		20550+1259	BPM2293		25	100.2	15
Show		20523+1304	GRV 390		107	42.6	26
Show		20549+1236	BPM2292		143	61.9	33
Show		20553+1236	BPM2295		182	40.1	36
Show		20567+1300	STF2736		219	5.3	40
Show		20556+1234	HJ 1592	AB	15	34.4	40
Show		20556+1234	DRS 30	Aa,Ab	116	0.2	40
Show		20528+1351	UC 4315	AB	157	14.6	49
Show		20516+1340	TDT2583		98	0.6	50
Show		20524+1353	BPM2285		88	101.7	53
Show		20541+1402	J 846		155	3.6	56
Show		20503+1317	BPM2279		146	89.2	57
Show		20548+1403	BPM2291		100	25.7	58
Show		20499+1255	HJ 1577		245	9.4	62
Show		20498+1321	HJ 1578		311	11.5	63
Show		20502+1246	J 3277		326	4.1	63
Show		20578+1339	FMR 162		290	13.0	64
Show		20586+1313	TDT2669		119	0.4	67
Show		20496+1322	TDT2565		136	1.4	68
Show		20497+1331	BPM2277		190	94.4	69
Show		20562+1406	GRV 398		148	61.1	69
Show		20585+1239	BPM2304		343	79.8	70
Show		20524+1200	GWP3008		252	11.1	71
Show		20529+1415	GAI9015	AB	277	1.3	72
Show		20529+1415	GAI9015	AC	167	51.8	72
Show		20519+1203	J 3245		249	3.8	72
Show		20496+1233	BU 1495	AB	19	52.1	73
Show		20496+1233	BU 1495	AC	86	105.5	73
Show		20496+1233	BU 1495	AD	276	189.6	73
Show		20492+1243	GWP3001		126	94.3	76
Show		20577+1402	A 1685	AB	86	0.7	77
Show		20577+1402	A 1685	AC	126	14.6	77
Show		20550+1423	BPM2294		342	59.0	79
Show		20488+1248	GWP3000		280	24.1	80
Show		20573+1200	KPP3365		169	3.6	81
Show		20596+1305	TDT2680	AB	40	10.4	82
Show		20520+1422	BRT1956		197	6.4	83
Show		20572+1157	TDT2655		118	0.4	83
Show		20523+1144	BPM2284		252	115.9	86
Show		20594+1222	GWP3025		127	13.3	91
Show		20570+1426	UC 4340		2	31.5	91
Show		20486+1223	BPM2273		132	52.3	92
Show		20515+1432	GRV 388		239	51.4	94
Show		20554+1442	BPM2296		243	70.1	98
Show		20580+1426	BPM2302		340	14.3	98
Show		20487+1407	LIT 34		206	9.5	99
Show		20573+1434	BPM2301		61	73.1	100
Show		21010+1301	AG 412		233	10.1	102
Show		20471+1257	BPM2265		51	16.1	103
Show		20481+1404	UC 4293		5	14.4	104

WDS 20541+1306 : COMPONENTS

	A
B	pa=226.4° sep=24.03"

20541+1306 A

Componente originario normalizzato	AB		Coord arcsec 2000	205403.68+130614.8		Mag	9.39		Spectral class	G0 (yellow)
PmRA	48.00		PmDE	-7.0		Tycho2	1098-00695-1

Tycho2

Tycho2	1098-00695-1	Pflag		RAmdeg	313.51533672	DEmdeg	13.10411233
PmRA	46.6	PmDE	-8.8	E RAmdeg	12	E DEmdeg	14
E pmRA	1.2	E pmDE	1.2	EpRAm	1989.74	EpDEm	1988.62
Num	9	Q RAmdeg	1.8	Q DEmdeg	0.6	Q pmRA	1.8
Q pmDE	0.6	BTmag	9.894	E BTmag	0.026	VTmag	9.393
E VTmag	0.022	Prox	201	TYC	T	HIP
CCDM		RAdeg	313.51522528	DEdeg	13.10413444	EpRA 1990	1.68
EpDE 1990	1.45	E RAdeg	12.9	E DEdeg	15.3	Posflg
Corr	0.0

CCDM

Ccdm	20541+1306	RComp		Comp	A	Note1
Note2		Discov num		DRAs	-2.32	DDEs	15.2
R dRAs	10	Year		Theta		Rho
Obs	2	Vmag	9.0	Sp	G0	PmNote	*
PmRA	45	PmDE	2	Dm number	+12 4494	Cat1	BD
Name2	+12 2410	Cat2	AGK2/3	HD		M HD
ADS BDS	B10595	M ADS BDS		N IDS		IDS	20493N1244A
HIC

20541+1306 B

Componente originario normalizzato	AB		Coord arcsec 2000	205402.49+130558.2		Mag	9.82		PmRA	-45.00
PmDE	57.0		Tycho2	1098-00989-1		Calc delta mag	0.43		Calc coord	yes

Tycho2

Tycho2	1098-00989-1	Pflag		RAmdeg	313.51070459	DEmdeg	13.09924697
PmRA	-43.2	PmDE	55.4	E RAmdeg	18	E DEmdeg	20
E pmRA	1.3	E pmDE	1.3	EpRAm	1987.57	EpDEm	1986.28
Num	7	Q RAmdeg	1.9	Q DEmdeg	1.4	Q pmRA	2.0
Q pmDE	1.3	BTmag	10.501	E BTmag	0.038	VTmag	9.822
E VTmag	0.029	Prox	82	TYC	T	HIP
CCDM		RAdeg	313.51080583	DEdeg	13.09911278	EpRA 1990	1.70
EpDE 1990	1.48	E RAdeg	19.6	E DEdeg	23.0	Posflg
Corr	0.0

CCDM

Ccdm	20541+1306	RComp		Comp	B	Note1
Note2		Discov num	STF2734	DRAs	-3.46	DDEs	-3.5
R dRAs	10	Year	1935	Theta	206	Rho	24.1
Obs	18	Vmag	9.5	Sp	G0	PmNote	*
PmRA	-55	PmDE	49	Dm number		Cat1
Name2	+12 2409	Cat2	AGK2/3	HD		M HD
ADS BDS	B10595	M ADS BDS		N IDS		IDS	20493N1244B
HIC