WDS 20423+7915 SKF 1247

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20423+7915
SKF 1247

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Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

WDS 20423+7915 : COMPONENTS

	A
B	pa=355.8° sep=16.09"

20423+7915 A

Componente originario normalizzato	AB		Coord arcsec 2000	204216.81+791502.9		Mag	10.9		Spectral class	F8 (yellow-white)
PmRA	6.00		PmDE	26.0		Tycho2	4594-01134-1

Tycho2

Tycho2	4594-01134-1		Pflag			RAmdeg	310.57010114		DEmdeg	79.25081831
PmRA	3.9		PmDE	26.8		E RAmdeg	29		E DEmdeg	32
E pmRA	1.9		E pmDE	2.1		EpRAm	1986.23		EpDEm	1987.47
Num	4		Q RAmdeg	2.5		Q DEmdeg	0.8		Q pmRA	2.5
Q pmDE	0.8		BTmag	11.645		E BTmag	0.066		VTmag	10.895
E VTmag	0.058		Prox	171		TYC	T		HIP
CCDM			RAdeg	310.57000222		DEdeg	79.25075417		EpRA 1990	1.59
EpDE 1990	1.77		E RAdeg	40.2		E DEdeg	37.5		Posflg
Corr	-0.1

20423+7915 B

Componente originario normalizzato	AB		Coord arcsec 2000	204216.39+791518.9		Mag	11.41		PmRA	4.00
PmDE	26.0		Tycho2	4594-00738-1		Calc delta mag	0.51		Calc coord	yes

Tycho2

Tycho2	4594-00738-1		Pflag			RAmdeg	310.56072814		DEmdeg	79.25524446
PmRA	7.5		PmDE	26.7		E RAmdeg	56		E DEmdeg	54
E pmRA	2.0		E pmDE	2.2		EpRAm	1982.71		EpDEm	1984.54
Num	3		Q RAmdeg	1.1		Q DEmdeg	1.1		Q pmRA	1.1
Q pmDE	1.0		BTmag	12.103		E BTmag	0.119		VTmag	11.410
E VTmag	0.089		Prox	171		TYC	T		HIP
CCDM			RAdeg	310.56063556		DEdeg	79.25518333		EpRA 1990	1.63
EpDE 1990	1.76		E RAdeg	59.4		E DEdeg	55.7		Posflg
Corr	-0.1