WDS 20454+0952 HEI 589

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20454+0952
HEI 589

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

WDS 20454+0952 : COMPONENTS

	A
B	pa=257.0° sep=1.78"

20454+0952 A

Componente originario normalizzato	AB		Coord arcsec 2000	204524.08+095211.9		Mag	10.86		Spectral class	F8 (yellow-white)
PmRA	43.00		PmDE	-5.0		Tycho2	1093-02968-1

Tycho2

Tycho2	1093-02968-1		Pflag	P		RAmdeg	311.35031570		DEmdeg	9.86997983
PmRA	42.7		PmDE	-5.2		E RAmdeg	34		E DEmdeg	44
E pmRA	2.5		E pmDE	2.4		EpRAm	1989.49		EpDEm	1987.14
Num	3		Q RAmdeg	1.2		Q DEmdeg	0.9		Q pmRA	1.2
Q pmDE	0.9		BTmag	11.278		E BTmag	0.063		VTmag	10.859
E VTmag	0.067		Prox	17		TYC	T		HIP
CCDM			RAdeg	311.35032750		DEdeg	9.87001528		EpRA 1990	1.70
EpDE 1990	1.41		E RAdeg	34.0		E DEdeg	45.3		Posflg	D
Corr	-0.1

20454+0952 B

Componente originario normalizzato	AB		Coord arcsec 2000	204523.96+095211.5		Mag	11.59		PmRA	43.00
PmDE	-5.0		Tycho2	1093-02968-2		Calc delta mag	0.73		Calc coord	yes

Tycho2

Tycho2	1093-02968-2		Pflag	P		RAmdeg	311.35031570		DEmdeg	9.86997983
PmRA	42.7		PmDE	-5.2		E RAmdeg	34		E DEmdeg	44
E pmRA	2.5		E pmDE	2.4		EpRAm	1989.49		EpDEm	1987.14
Num	3		Q RAmdeg	1.2		Q DEmdeg	0.9		Q pmRA	1.2
Q pmDE	0.9		BTmag	12.116		E BTmag	0.142		VTmag	11.587
E VTmag	0.128		Prox	17		TYC			HIP
CCDM			RAdeg	311.34984722		DEdeg	9.86991417		EpRA 1990	1.69
EpDE 1990	1.40		E RAdeg	63.3		E DEdeg	85.1		Posflg	D
Corr	-0.1