WDS 21158+0747 SKF 1870

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21158+0747
SKF 1870

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

WDS 21158+0747 : COMPONENTS

	A
B	pa=203.1° sep=43.30"

21158+0747 A

Componente originario normalizzato	AB		Coord arcsec 2000	211550.59+074630.4		Mag	9.44		Spectral class	K0 (yellow-orange)
PmRA	20.00		PmDE	5.0		Tycho2	1105-01715-1

Tycho2

Tycho2	1105-01715-1		Pflag			RAmdeg	318.96080099		DEmdeg	7.77509773
PmRA	19.5		PmDE	5.9		E RAmdeg	23		E DEmdeg	25
E pmRA	1.8		E pmDE	1.8		EpRAm	1987.45		EpDEm	1985.62
Num	7		Q RAmdeg	0.9		Q DEmdeg	1.2		Q pmRA	0.9
Q pmDE	1.2		BTmag	10.542		E BTmag	0.061		VTmag	9.435
E VTmag	0.034		Prox	435		TYC	T		HIP
CCDM			RAdeg	318.96075417		DEdeg	7.77508278		EpRA 1990	1.75
EpDE 1990	1.75		E RAdeg	26.1		E DEdeg	31.3		Posflg
Corr	-0.1

21158+0747 B

Componente originario normalizzato	AB		Coord arcsec 2000	211549.45+074550.6		Mag	11.19		PmRA	18.00
PmDE	4.0		Tycho2	1105-02050-1		Calc delta mag	1.75		Calc coord	yes

Tycho2

Tycho2	1105-02050-1		Pflag			RAmdeg	318.95600750		DEmdeg	7.76400528
PmRA	19.5		PmDE	1.9		E RAmdeg	54		E DEmdeg	42
E pmRA	2.8		E pmDE	2.7		EpRAm	1982.37		EpDEm	1980.82
Num	4		Q RAmdeg	0.4		Q DEmdeg	1.0		Q pmRA	0.5
Q pmDE	0.9		BTmag	11.278		E BTmag	0.111		VTmag	11.191
E VTmag	0.157		Prox	435		TYC			HIP
CCDM			RAdeg	318.95595722		DEdeg	7.76398611		EpRA 1990	1.77
EpDE 1990	1.81		E RAdeg	73.7		E DEdeg	86.8		Posflg
Corr	0.0