Alkalurops

The object was found in the following catalogues:
  1. The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

  2. SKY2000 - Master Star Catalog

  3. Smithsonian Astrophysical Observatory Star Catalog

  4. The Washington Visual Double Star Catalog, 1996.0

  5. Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names Alkalurops, m1Boo, NSV 07063, 51 Boo, HR 5733, HD 137391, SAO 64686, FK5: 568, WDS 15245+3723A
other names Inkalunis, Icalurus, Clava, Venabulum
constellation Bootes

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)

note (category: star names): Alkalurops; Inkalunis; Icalurus; Clava; Venabulum.

position, motion, parallax:

position (J2000) RA: 15h 24min 29,4sec DEC: +37° 22' 38''
position (J1900) RA: 15h 20min 42,7sec DEC: +37° 43' 40''
proper motion (J2000) RA: -0,146 arcsec/a DEC: 0,087 arcsec/a
radial velocity -13 km/s
note: spectroscopic binaries
rotational velocity 84 km/s (uncertain) (variable)
trigonometric parallax 0,039 arcsec

magnitude

visual magnitude 4,31
(V on UBV Johnson system)

spectral / color information

spectral class F2IVa
B-V-magnitude 0,31
U-B-magnitude 0,07
R-I-magnitude 0,15

variability information

variable star identification 7063
note (category: variability): Delta Sct?

double/multiple star system information

number of components of multiple star system 3
separation 108,9 arcsec
mag difference (of double or brightest multiple) 2,2
component ID AxBC
note (category: double and multiple data): Probably binary with HR 5734, a close binary ADS 9626BC.
note (category: spectroscopic binaries): ADS 9626A, 298.75d.

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000) RA: 15h 24min 29,434sec DEC: +37° 22' 37,79'' ±0,06 arcsec source: 15
proper motion (J2000) RA: -0,0122 arcsec/a DEC: 0,087 arcsec/a source: 25
radial velocity -13 km/s source: 25
trigonometric parallax 0,039 ±0,004 arcsec source: 25
galactic coord. (B1950) longitude: 60,39° latitude: 56,31°
GCI unit vector (J2000) X: -0,498771 Y: -0,618633 Z: 0,607059

magnitude:

visual 4,31 (observed) source: 25
photovisual 4,5 source: 2

spectral information:

spectral class F0 source: 96
Morgan-Keenan F2IVa source: 25
B-magnitude 4,62 ±0,05 B-V-magnitude 0,31
U-magnitude 4,69 ±0,05 U-B-magnitude 0,07

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 0,1 arcsec
position angle 280 °

component magnitude spectral class catalogue(s)/name(s)
A 4,31 F0 Alkalurops, m1Bootis, 51 Boo, HR 5733, HD 137391, SAO 64686
B 6,5 K0 m2Bootis, 51 Boo, HR 5734, HD 137392, SAO 64687

sources:

2 HD and HDE Catalogs
Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University
15 FK5, FK5 Extension and FK5 Supplement
Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991
19 WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
25 Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
96 SAO or HD/HDE Catalog
Reference from Value 1 or Reference from Value 2

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (J1950) RA: 15h 22min 35,995sec DEC: +37° 33' 5,49'' ±0,005 arcsec
position (J2000) RA: 15h 24min 29,445sec DEC: +37° 22' 37,76''
proper motion J1950 (FK4) RA: -0,0124 arcsec/a DEC: 0,084 arcsec/a ±0,001 arcsec/a in RA
±0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0121 arcsec/a DEC: 0,087 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,5 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class F0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 568
Durchmusterung BD+37 2636
Boss General Catalogue 20724
Henry Draper Catalogue 137391

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000) RA: 15h 24,5min DEC: +37° 23'
proper motion (J2000) RA: -0,146 arcsec/a DEC: 0,087 arcsec/a

double/multiple star system information:

component year number of measures position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) discoverer code
Aa 1988 2 350° 0,1'' 4,31 - F2IVa CHR 181
1993 280° -
Aa-BC 1834 54 171° 108,4'' 4,31 6,5 F2IVa G0V STF 28
BC 1826 often 327° 1,3'' 7,2 7,8 G0V STF1938
1994 10° 2,1''

discoverer information:

discoverer code discoverer reference
CHR 181 - -
STF 28 Struve, F.G.W. -
STF1938 Struve, F.G.W. -

notes:

note Mu (1) Boo. A is a long-period spectroscopic binary. BC: Mu (2) Boo. P = 246yr., a = 1.40", motion retrograde.

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (J1950) RA: 15h 22min 36sec DEC: +37° 33' 5''

variability informations:

magnitute at max. brightness 4,29
magnitute at min. brightness 4,34
photometric system visual, photovisual or Johnson's V

spectral information

spectral class F2

references

to a study 631147D (designation: mu1 BOO)

miscanellous

There are notes in the published catalog (Kukarkin et al.(1982)).