WDS 20452-0331 AHD 28

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20452-0331
AHD 28

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

WDS 20452-0331 : COMPONENTS

	A
B	pa=307.5° sep=37.33"

20452-0331 A

Componente originario normalizzato	AB		Coord arcsec 2000	204510.58-033121.5		Mag	10.1		Spectral class	F9V (yellow-white)
PmRA	22.00		PmDE	-23.0		Tycho2	5182-01026-1

Tycho2

Tycho2	5182-01026-1		Pflag			RAmdeg	311.29408351		DEmdeg	-3.52264495
PmRA	27.5		PmDE	-21.6		E RAmdeg	20		E DEmdeg	25
E pmRA	1.6		E pmDE	1.6		EpRAm	1989.92		EpDEm	1988.76
Num	4		Q RAmdeg	0.4		Q DEmdeg	0.7		Q pmRA	0.4
Q pmDE	0.7		BTmag	10.824		E BTmag	0.039		VTmag	10.227
E VTmag	0.033		Prox	374		TYC	T		HIP
CCDM			RAdeg	311.29401917		DEdeg	-3.52259250		EpRA 1990	1.60
EpDE 1990	1.25		E RAdeg	19.7		E DEdeg	25.0		Posflg
Corr	-0.1

20452-0331 B

Componente originario normalizzato	AB		Coord arcsec 2000	204508.60-033058.8		Mag	10.7		Spectral class	G2V (yellow)
PmRA	24.00		PmDE	-23.0		Tycho2	5182-01991-1		Calc delta mag	0.6
Calc coord	yes

Tycho2

Tycho2	5182-01991-1		Pflag			RAmdeg	311.28581414		DEmdeg	-3.51633344
PmRA	27.5		PmDE	-20.8		E RAmdeg	30		E DEmdeg	37
E pmRA	1.7		E pmDE	1.8		EpRAm	1988.54		EpDEm	1986.78
Num	4		Q RAmdeg	2.2		Q DEmdeg	1.0		Q pmRA	2.4
Q pmDE	1.0		BTmag	11.393		E BTmag	0.061		VTmag	10.708
E VTmag	0.050		Prox	374		TYC	T		HIP
CCDM			RAdeg	311.28574944		DEdeg	-3.51628278		EpRA 1990	1.59
EpDE 1990	1.24		E RAdeg	29.7		E DEdeg	38.1		Posflg
Corr	-0.1