WDS 18428-1523 HLD 145 (HD 172812)

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18428-1523
HLD 145
HD 172812

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

WDS 18428-1523 : COMPONENTS

	A
B	pa=50.0° sep=1.47"

18428-1523 A

Componente originario normalizzato	AB		Name	HD 172812		Coord arcsec 2000	184245.37-152319.4		Mag	9.54
Spectral class	G8V (yellow)		PmRA	-19.00		PmDE	-12.0		Tycho2	6280-00370-1
HD	172812

Tycho2

Tycho2	6280-00370-1		Pflag	P		RAmdeg	280.68904702		DEmdeg	-15.38872134
PmRA	-19.1		PmDE	-11.7		E RAmdeg	20		E DEmdeg	23
E pmRA	2.1		E pmDE	2.1		EpRAm	1990.14		EpDEm	1989.70
Num	4		Q RAmdeg	2.2		Q DEmdeg	1.0		Q pmRA	2.2
Q pmDE	1.0		BTmag	10.370		E BTmag	0.039		VTmag	9.541
E VTmag	0.030		Prox	16		TYC	T		HIP
CCDM			RAdeg	280.68896583		DEdeg	-15.38879639		EpRA 1990	1.57
EpDE 1990	1.56		E RAdeg	21.1		E DEdeg	23.7		Posflg	D
Corr	0.1

18428-1523 B

Componente originario normalizzato	AB		Coord arcsec 2000	184245.45-152318.5		Mag	9.81		PmRA	-19.00
PmDE	-12.0		Tycho2	6280-00370-2		Calc delta mag	0.27		Calc coord	yes

Tycho2

Tycho2	6280-00370-2		Pflag	P		RAmdeg	280.68904702		DEmdeg	-15.38872134
PmRA	-19.1		PmDE	-11.7		E RAmdeg	20		E DEmdeg	23
E pmRA	2.1		E pmDE	2.1		EpRAm	1990.14		EpDEm	1989.70
Num	4		Q RAmdeg	2.2		Q DEmdeg	1.0		Q pmRA	2.2
Q pmDE	1.0		BTmag	10.716		E BTmag	0.054		VTmag	9.814
E VTmag	0.038		Prox	16		TYC	T		HIP
CCDM			RAdeg	280.68930806		DEdeg	-15.38851806		EpRA 1990	1.56
EpDE 1990	1.56		E RAdeg	27.9		E DEdeg	31.4		Posflg	D
Corr	0.1