WDS 18281-2048 RSS 32 (HD 169991)

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18281-2048
RSS 32
HD 169991

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

WDS 18281-2048 : COMPONENTS

	A
B	pa=221.2° sep=44.29"

18281-2048 A

Componente originario normalizzato	AB		Name	HD 170015		Coord arcsec 2000	182808.47-204806.8		Mag	8.94
Spectral class	B9II (blue-white)		PmRA	-3.00		PmDE	-7.0		HIP	90515
Tycho2	6278-01671-1		HD	170015		BD	BD-20 5147

Tycho2

Tycho2	6278-01671-1		Pflag			RAmdeg	277.03530001		DEmdeg	-20.80189579
PmRA	-4.8		PmDE	-7.1		E RAmdeg	10		E DEmdeg	12
E pmRA	1.5		E pmDE	1.5		EpRAm	1989.71		EpDEm	1989.24
Num	8		Q RAmdeg	0.8		Q DEmdeg	1.0		Q pmRA	0.7
Q pmDE	1.0		BTmag	9.062		E BTmag	0.021		VTmag	8.938
E VTmag	0.021		Prox	457		TYC	T		HIP	90515
CCDM			RAdeg	277.03531111		DEdeg	-20.80187861		EpRA 1990	1.65
EpDE 1990	1.59		E RAdeg	10.5		E DEdeg	12.7		Posflg
Corr	0.1

Hipparcos

Catalog	H		HIP	90515		Proxy			RAhms	18 28 08.48
DEdms	-20 48 06.8		Vmag	8.9		VarFlag			R Vmag	H
RAdeg	277.035		DEdeg	-20.8019		AstroRef			Plx	1.92
CCDM	18281-2048		N CCDM	I		Nsys	2		Ncomp	1
MultFlag			Source			Qual			M HIP
Theta			Rho			HD	170015		BD	BD-20 5147
CD			CP			Dm number	-20 5147		VIred	0.09
SpType	B9II		R SpType			Coord arcsec 2000	182808.48-204806.8

Hipparcos 2

HIP	90515		Sn	5		So	0		Nc	1
RArad	4.8351783687		DErad	-0.3630612287		Plx	3.43		PmRA	-2.35
PmDE	-9.29		E RArad	1.65		E DErad	1.07		E Plx	1.65
E pmRA	2.07		E pmDE	1.38		Hpmag	8.9453		E Hpmag	0.0049
SHp	0.025		VA	0		BV	0.134		E BV	0.038
VI	0.15

CCDM

Ccdm	18281-2048		RComp			Comp	A		Note1
Note2			Discov num			DRAs	2.48		DDEs	-6.9
R dRAs	40		Year			Theta			Rho
Obs	2		Vmag	8.9		Sp	B9		PmNote
PmRA			PmDE			Dm number	-20 5147		Cat1	BD
Name2			Cat2			HD	170015		M HD
ADS BDS			M ADS BDS			N IDS	*		IDS	18222S2052A
HIC	90515

18281-2048 B

Componente originario normalizzato	AB		Coord arcsec 2000	182806.39-204840.1		Mag	9.85		PmRA	-1.00
PmDE	-3.0		SAO	186850		HIP	90508		Tycho2	6278-01733-1
HD	169991		BD	BD-20 5146		Calc delta mag	0.91		Calc coord	yes

Tycho2

Tycho2	6278-01733-1		Pflag			RAmdeg	277.02598870		DEmdeg	-20.81112421
PmRA	-2.4		PmDE	-4.0		E RAmdeg	20		E DEmdeg	23
E pmRA	1.8		E pmDE	1.7		EpRAm	1987.58		EpDEm	1984.21
Num	6		Q RAmdeg	0.8		Q DEmdeg	0.8		Q pmRA	0.7
Q pmDE	0.8		BTmag	10.032		E BTmag	0.037		VTmag	9.851
E VTmag	0.043		Prox	457		TYC	T		HIP	90508
CCDM			RAdeg	277.02599611		DEdeg	-20.81111444		EpRA 1990	1.68
EpDE 1990	1.61		E RAdeg	22.3		E DEdeg	27.7		Posflg
Corr	0.2

SAO

SAO	186850		DelFlag			RA1950			PmRA1950	-0.0011
DE1950			PmDE1950	0.002		Vmag	8.9		SpType	A
Double code			Source	23		CatNum	7709		DM	BD-20 5146
DMcomp			BDsup			HD	169991		M HD	0
GC			RA1950rad	4.82199359		DE1950rad	-0.36378467		PmRA2000	-0.0011
PmDE2000	0.003

Hipparcos

Catalog	H		HIP	90508		Proxy			RAhms	18 28 06.24
DEdms	-20 48 40.0		Vmag	9.84		VarFlag			R Vmag	H
RAdeg	277.026		DEdeg	-20.8111		AstroRef			Plx	-1.64
CCDM	18281-2048		N CCDM	I		Nsys	2		Ncomp	1
MultFlag			Source			Qual			M HIP
Theta			Rho			HD	169991		BD	BD-20 5146
CD			CP			Dm number	-20 5146		VIred	0.67
SpType	B8/B9II/III		R SpType			Coord arcsec 2000	182806.24-204840.0

Hipparcos 2

HIP	90508		Sn	5		So	0		Nc	1
RArad	4.8350156193		DErad	-0.3632225056		Plx	-0.36		PmRA	-6.35
PmDE	-5.56		E RArad	2.39		E DErad	1.53		E Plx	2.43
E pmRA	3.19		E pmDE	2.21		Hpmag	9.892		E Hpmag	0.0064
SHp	0.034		VA	0		BV	0.156		E BV	0.072
VI	0.17

CCDM

Ccdm	18281-2048		RComp			Comp	B		Note1
Note2			Discov num	RSU		DRAs	0.18		DDEs	-39.9
R dRAs	40		Year	1977		Theta	224		Rho	45.7
Obs	1		Vmag	9.4		Sp	A		PmNote	*
PmRA	-15		PmDE	2		Dm number	-20 5146		Cat1	BD
Name2	186850		Cat2	SAO		HD	169991		M HD
ADS BDS			M ADS BDS			N IDS	*		IDS	18222S2052B
HIC	90508