Acubens


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 Acubens, a Cnc, NSV 04327, 65 Cnc, HR 3572, HD 76756, SAO 98267, FK5: 337, WDS 08585+1151
other names Sertan, Sartan
constellation Cancer

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

note (category: star names): Acubens; Sertan; Sartan.

position, motion, parallax:

position (J2000) RA: 8h 58min 29,2sec DEC: +11 51' 28''
position (J1900) RA: 8h 53min 1,1sec DEC: +12 14' 42''
proper motion (J2000) RA: 0,034 arcsec/a DEC: -0,031 arcsec/a
radial velocity -14 km/s
note: spectroscopic binaries
rotational velocity 68 km/s (uncertain) (variable)
trigonometric parallax 0,024 arcsec
note (category: dynamical parallaxes): 0.029".

magnitude

visual magnitude 4,25
(V on UBV Johnson system)

spectral / color information

spectral class A5m
B-V-magnitude 0,14
U-B-magnitude 0,15
R-I-magnitude 0,04
note (category: spectra): Spectrum shows phosphorus.

variability information

variable star identification 4327

double/multiple star system information

number of components of multiple star system 3
separation 0,1 arcsec
mag difference (of double or brightest multiple) 0
note (category: double and multiple data): ADS 7115A is questioned close double. Combined mag., colors, 5.0, 5.0v, sep. 0.1". B is 10.8v at 11", binary.

miscellaneous information

note (category: group membership): Sirius group?

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

position, motion, parallax:

position (J2000) RA: 8h 58min 29,224sec DEC: +11 51' 27,79'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0023 arcsec/a DEC: -0,031 arcsec/a source: 25
radial velocity -14 km/s source: 25
trigonometric parallax 0,024 0,002 arcsec source: 25
galactic coord. (B1950) longitude: 216,52 latitude: 33,52
GCI unit vector (J2000) X: -0,687434 Y: 0,696571 Z: 0,205482

magnitude:

visual 4,25 (observed) source: 25
photovisual 4,3 source: 2

spectral information:

spectral class A3 source: 96
Morgan-Keenan A5m source: 25
B-magnitude 4,39 0,05 B-V-magnitude 0,14
U-magnitude 4,54 0,05 U-B-magnitude 0,15

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 10,9 arcsec
magnitude difference between brightest and second brightest component 7,6
position angle 322

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: 8h 55min 45,247sec DEC: +12 3' 9,07'' 0,004 arcsec
position (J2000) RA: 8h 58min 29,238sec DEC: +11 51' 27,85''
proper motion J1950 (FK4) RA: 0,0024 arcsec/a DEC: -0,034 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0024 arcsec/a DEC: -0,031 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,3 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class A3
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 337
Durchmusterung BD+12 1948
Boss General Catalogue 12406
Henry Draper Catalogue 76756

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

position and proper motion:

position (J2000) RA: 8h 58,5min DEC: +11 51'
proper motion (J2000) RA: 0,034 arcsec/a DEC: -0,031 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
- 1836 12 325 11,3'' 4,25 11,8 A5m HJ 110
1962 322 10,9''

discoverer information:

discoverer code discoverer reference
HJ 110 Herschel, J. -

notes:

note Alpha Cnc. A is an occultation double.

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

position:

position (J1950) RA: 8h 55min 45,2sec DEC: +12 3' 9''

variability informations:

magnitute at max. brightness 4,2
magnitute at min. brightness 4,27
photometric system visual, photovisual or Johnson's V

spectral information

spectral class AM

references

to a study 731201D (designation: HD 76756)

miscanellous

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