WDS 18170+2937 UC 238

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18170+2937
UC 238

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

WDS 18170+2937 : COMPONENTS

	A
B	pa=63.1° sep=43.37"

18170+2937 A

Componente originario normalizzato	AB		Coord arcsec 2000	181702.81+293645.4		Mag	9.35		Spectral class	G0 (yellow)
PmRA	-38.00		PmDE	-44.0		Tycho2	2105-00343-1

Tycho2

Tycho2	2105-00343-1		Pflag			RAmdeg	274.26172272		DEmdeg	29.61260216
PmRA	-38.5		PmDE	-44.4		E RAmdeg	12		E DEmdeg	11
E pmRA	1.3		E pmDE	1.2		EpRAm	1990.02		EpDEm	1990.11
Num	9		Q RAmdeg	0.8		Q DEmdeg	0.8		Q pmRA	0.8
Q pmDE	0.8		BTmag	10.082		E BTmag	0.024		VTmag	9.355
E VTmag	0.017		Prox	485		TYC	T		HIP
CCDM			RAdeg	274.26182667		DEdeg	29.61270528		EpRA 1990	1.54
EpDE 1990	1.60		E RAdeg	11.5		E DEdeg	11.3		Posflg
Corr	0.0

18170+2937 B

Componente originario normalizzato	AB		Coord arcsec 2000	181705.78+293705.0		Mag	11.83		PmRA	-37.00
PmDE	-45.0		Tycho2	2105-00221-1		Calc delta mag	2.48		Calc coord	yes

Tycho2

Tycho2	2105-00221-1		Pflag			RAmdeg	274.27590544		DEmdeg	29.61803707
PmRA	-42.5		PmDE	-38.7		E RAmdeg	74		E DEmdeg	74
E pmRA	3.7		E pmDE	3.6		EpRAm	1987.03		EpDEm	1986.78
Num	2		Q RAmdeg			Q DEmdeg			Q pmRA
Q pmDE			BTmag	12.963		E BTmag	0.231		VTmag	11.827
E VTmag	0.135		Prox	485		TYC			HIP
CCDM			RAdeg	274.27602028		DEdeg	29.61812722		EpRA 1990	1.55
EpDE 1990	1.60		E RAdeg	76.0		E DEdeg	75.5		Posflg
Corr	-0.1