WDS 04271+2542 THB 1 (DF Tau)

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04271+2542
THB 1
DF Tau

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

WDS 04271+2542 : COMPONENTS

	A
B	pa=182.3° sep=0.09"

04271+2542 A

Componente originario normalizzato	AB		Name	DF Tau		Coord arcsec 2000	042702.79+254222.6		Mag	12.62
Spectral class	M2.0 (red)		PmRA	6.00		PmDE	-20.0		HIP	20777

Hipparcos

Catalog	H		HIP	20777		Proxy			RAhms	04 27 02.79
DEdms	+25 42 22.6		Vmag	11.96		VarFlag	3		R Vmag	H
RAdeg	66.7616		DEdeg	25.7063		AstroRef	*		Plx	25.72
CCDM			N CCDM			Nsys			Ncomp	1
MultFlag	V		Source			Qual			M HIP
Theta			Rho			HD			BD
CD			CP			Dm number			VIred	1.6
SpType	M0-M3Ve(T)		R SpType			Coord arcsec 2000	042702.79+254222.6

Hipparcos 2

HIP	20777		Sn	5		So	5		Nc	1
RArad	1.1652098711		DErad	0.4486590044		Plx	21.79		PmRA	12.82
PmDE	-19.09		E RArad	5.98		E DErad	4.27		E Plx	6.8
E pmRA	6.56		E pmDE	4.98		Hpmag	12.0807		E Hpmag	0.0498
SHp	0.338		VA	2		BV	1.47		E BV	0.51
VI	1.6

04271+2542 B

Componente originario normalizzato	AB		Coord arcsec 2000	042702.79+254222.5		Mag	13.51		Spectral class	M2.5 (red)
Calc delta mag	0.89		Calc coord	yes