WDS 21109+3830 ES 254

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21109+3830
ES 254

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

WDS 21109+3830 : COMPONENTS

	A
B	pa=331.3° sep=2.05"

21109+3830 A

Componente originario normalizzato	AB		Coord arcsec 2000	211057.08+383033.4		Mag	10.46		Spectral class	A1IV (white)
PmRA	-1.00		PmDE	-2.0		Tycho2	3169-01864-1

Tycho2

Tycho2	3169-01864-1		Pflag	P		RAmdeg	317.73783968		DEmdeg	38.50927158
PmRA	-0.8		PmDE	-1.6		E RAmdeg	26		E DEmdeg	23
E pmRA	2.6		E pmDE	2.3		EpRAm	1990.35		EpDEm	1990.54
Num	4		Q RAmdeg	0.8		Q DEmdeg	1.2		Q pmRA	0.8
Q pmDE	1.3		BTmag	10.751		E BTmag	0.039		VTmag	10.455
E VTmag	0.039		Prox	21		TYC	T		HIP
CCDM			RAdeg	317.73804694		DEdeg	38.50904000		EpRA 1990	1.60
EpDE 1990	1.78		E RAdeg	26.2		E DEdeg	22.9		Posflg	D
Corr	0.1

21109+3830 B

Componente originario normalizzato	AB		Coord arcsec 2000	211057.00+383035.2		Mag	10.59		PmRA	-1.00
PmDE	-2.0		Tycho2	3169-01864-2		Calc delta mag	0.13		Calc coord	yes

Tycho2

Tycho2	3169-01864-2		Pflag	P		RAmdeg	317.73783968		DEmdeg	38.50927158
PmRA	-0.8		PmDE	-1.6		E RAmdeg	26		E DEmdeg	23
E pmRA	2.6		E pmDE	2.3		EpRAm	1990.35		EpDEm	1990.54
Num	4		Q RAmdeg	0.8		Q DEmdeg	1.2		Q pmRA	0.8
Q pmDE	1.3		BTmag	10.799		E BTmag	0.041		VTmag	10.592
E VTmag	0.046		Prox	21		TYC	T		HIP
CCDM			RAdeg	317.73761750		DEdeg	38.50953333		EpRA 1990	1.59
EpDE 1990	1.78		E RAdeg	28.7		E DEdeg	24.8		Posflg	D
Corr	0.1