WDS 18217+0521 TDS 918 (HD 168853)

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18217+0521
TDS 918
HD 168853

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

WDS 18217+0521 : COMPONENTS

	A
B	pa=138.3° sep=1.25"

18217+0521 A

Componente originario normalizzato	AB		Name	HD 168853		Coord arcsec 2000	182144.74+052038.5		Mag	9.71
Spectral class	A0 (white)		PmRA	-1.00		PmDE	-4.0		Tycho2	0440-03694-1
HD	168853

Tycho2

Tycho2	0440-03694-1		Pflag	P		RAmdeg	275.43641054		DEmdeg	5.34402421
PmRA	-1.3		PmDE	-4.0		E RAmdeg	14		E DEmdeg	17
E pmRA	2.6		E pmDE	2.5		EpRAm	1991.44		EpDEm	1991.13
Num	3		Q RAmdeg	0.9		Q DEmdeg	0.1		Q pmRA	1.0
Q pmDE	0.1		BTmag	9.814		E BTmag	0.026		VTmag	9.713
E VTmag	0.030		Prox	12		TYC	T		HIP
CCDM			RAdeg	275.43639278		DEdeg	5.34405583		EpRA 1990	1.80
EpDE 1990	1.74		E RAdeg	14.1		E DEdeg	17.0		Posflg	D
Corr	0.2

18217+0521 B

Componente originario normalizzato	AB		Coord arcsec 2000	182144.80+052037.6		Mag	11.23		PmRA	-1.00
PmDE	-4.0		Tycho2	0440-03694-2		Calc delta mag	1.52		Calc coord	yes

Tycho2

Tycho2	0440-03694-2		Pflag	P		RAmdeg	275.43641054		DEmdeg	5.34402421
PmRA	-1.3		PmDE	-4.0		E RAmdeg	14		E DEmdeg	17
E pmRA	2.6		E pmDE	2.5		EpRAm	1991.44		EpDEm	1991.13
Num	3		Q RAmdeg	0.9		Q DEmdeg	0.1		Q pmRA	1.0
Q pmDE	0.1		BTmag	11.699		E BTmag	0.091		VTmag	11.227
E VTmag	0.106		Prox	12		TYC			HIP
CCDM			RAdeg	275.43662944		DEdeg	5.34380361		EpRA 1990	1.80
EpDE 1990	1.74		E RAdeg	67.0		E DEdeg	82.0		Posflg	D
Corr	0.2