WDS 18040-2529 HDO 148 (HD 164817)

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18040-2529
HDO 148
HD 164817

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

WDS 18040-2529 : COMPONENTS

	A
B	pa=13.5° sep=4.54"

18040-2529 A

Componente originario normalizzato	AB		Name	HD 164817		Coord arcsec 2000	180359.09-252838.4		Mag	10.18
Spectral class	B8II/III (blue-white)		PmRA	4.00		PmDE	-2.0		Tycho2	6846-00759-2
HD	164817

Tycho2

Tycho2	6846-00759-2		Pflag			RAmdeg	270.99620722		DEmdeg	-25.47733310
PmRA	4.1		PmDE	-0.8		E RAmdeg	19		E DEmdeg	27
E pmRA	3.6		E pmDE	3.2		EpRAm	1991.56		EpDEm	1991.06
Num	2		Q RAmdeg			Q DEmdeg			Q pmRA
Q pmDE			BTmag	10.217		E BTmag	0.033		VTmag	10.183
E VTmag	0.043		Prox	46		TYC	T		HIP
CCDM			RAdeg	270.99619694		DEdeg	-25.47733139		EpRA 1990	1.91
EpDE 1990	1.97		E RAdeg	19.0		E DEdeg	27.4		Posflg
Corr	-0.1

18040-2529 B

Componente originario normalizzato	AB		Coord arcsec 2000	180359.17-252834.0		Mag	10.24		PmRA	40.00
PmDE	57.0		Tycho2	6846-00759-1		Calc delta mag	0.06		Calc coord	yes

Tycho2

Tycho2	6846-00759-1		Pflag			RAmdeg	270.99656981		DEmdeg	-25.47609828
PmRA	0.4		PmDE	-1.1		E RAmdeg	20		E DEmdeg	29
E pmRA	3.6		E pmDE	3.2		EpRAm	1991.52		EpDEm	1990.93
Num	2		Q RAmdeg			Q DEmdeg			Q pmRA
Q pmDE			BTmag	10.254		E BTmag	0.035		VTmag	10.241
E VTmag	0.047		Prox	46		TYC	T		HIP
CCDM			RAdeg	270.99656889		DEdeg	-25.47609583		EpRA 1990	1.91
EpDE 1990	1.98		E RAdeg	20.0		E DEdeg	29.1		Posflg
Corr	-0.1