WDS 18087-1756 TDT 706 Aa,Ab

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18087-1756
TDT 706 Aa,Ab

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

WDS 18087-1756 : COMPONENTS

	A	Ab
Ab	pa=98.2° sep=0.79"
B	pa=126.4° sep=11.48"	pa=128.3° sep=10.79"

18087-1756 A

Name	HD 312621		Coord arcsec 2000	180840.05-175559.9		Mag	10.73		Spectral class	G0 (yellow)
PmRA	-2.00		PmDE	3.0		Tycho2	6268-00716-1		HD	312621

Tycho2

Tycho2	6268-00716-1		Pflag			RAmdeg	272.16692875		DEmdeg	-17.93330539
PmRA	0.0		PmDE	0.9		E RAmdeg	41		E DEmdeg	34
E pmRA	2.4		E pmDE	2.5		EpRAm	1986.93		EpDEm	1981.85
Num	5		Q RAmdeg	2.7		Q DEmdeg	1.6		Q pmRA	2.7
Q pmDE	1.6		BTmag	11.860		E BTmag	0.099		VTmag	10.725
E VTmag	0.066		Prox	938		TYC			HIP
CCDM			RAdeg	272.16691639		DEdeg	-17.93331083		EpRA 1990	1.86
EpDE 1990	1.80		E RAdeg	44.0		E DEdeg	55.8		Posflg
Corr	0.0

CCDM

Ccdm	18087-1756		RComp			Comp	A		Note1
Note2			Discov num			DRAs	-2.06		DDEs	-0.3
R dRAs	56		Year			Theta			Rho
Obs	2		Vmag	11.7		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS			M ADS BDS			N IDS			IDS	18028S1757A
HIC

18087-1756 Ab

Coord arcsec 2000	180840.10-175600.0		Mag	11.82		PmRA	0.00		PmDE	1.0
Calc delta mag	0.66		Calc coord	yes

18087-1756 B

Coord arcsec 2000	180840.70-175606.7		Mag	12.2		PmRA	-1.00		PmDE	-4.0
Calc delta mag	1.04		Calc coord	yes

CCDM

Ccdm	18087-1756		RComp			Comp	B		Note1
Note2			Discov num	ARA 266		DRAs	-1.38		DDEs	-7.2
R dRAs	56		Year	1916		Theta	121		Rho	11.9
Obs	1		Vmag	13.2		Sp			PmNote
PmRA			PmDE			Dm number			Cat1
Name2			Cat2			HD			M HD
ADS BDS			M ADS BDS			N IDS			IDS	18028S1757B
HIC