Asterope

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. Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names Asterope, NSV 01283, 21 Tau, HR 1151, HD 23432, SAO 76159
other names Sterope I
constellation Taurus

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

note (category: star names): Asterope. Sterope I.

position, motion, parallax:

position (J2000) RA: 3h 45min 54,4sec DEC: +24° 33' 17''
position (J1900) RA: 3h 39min 56,8sec DEC: +24° 14' 32''
proper motion (J2000) RA: 0,011 arcsec/a DEC: -0,042 arcsec/a
radial velocity 9 km/s
note: spectroscopic binaries
rotational velocity 194 km/s (uncertain) (variable)

magnitude

visual magnitude 5,76
(V on UBV Johnson system)

spectral / color information

spectral class B8V
B-V-magnitude -0,04
U-B-magnitude -0,23
R-I-magnitude -0,04

variability information

variable star identification 1283

miscellaneous information

note (category: group membership): Pleiades cluster; Mel 22 #817.

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

position, motion, parallax:

position (J2000) RA: 3h 45min 54,423sec DEC: +24° 33' 16,02'' ±0,43 arcsec source: 16
proper motion (J2000) RA: 0,0004 arcsec/a DEC: -0,046 arcsec/a source: 25
radial velocity 9 km/s source: 25
galactic coord. (B1950) longitude: 166,05° latitude: -23,36°
GCI unit vector (J2000) X: 0,502331 Y: 0,758271 Z: 0,415558

magnitude:

visual 5,76 (observed) source: 25
photovisual 5,9 source: 2
photographic 5,8 source: 16

spectral information:

spectral class B8 source: 96
Morgan-Keenan B8V source: 25
B-magnitude 5,72 ±0,05 B-V-magnitude -0,04
U-magnitude 5,49 ±0,05 U-B-magnitude -0,23

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
16 PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
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: 3h 42min 55,37sec DEC: +24° 24' 0'' ±0,021 arcsec
position (J2000) RA: 3h 45min 54,404sec DEC: +24° 33' 16,76''
proper motion J1950 (FK4) RA: 0,0009 arcsec/a DEC: -0,039 arcsec/a ±0,004 arcsec/a in RA
±0,003 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0008 arcsec/a DEC: -0,042 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5,9 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class B8
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 4502
Durchmusterung BD+24 553
Boss General Catalogue 4502
Henry Draper Catalogue 23432

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

position:

position (J1950) RA: 3h 42min 55,4sec DEC: +24° 24' 0''

variability informations:

variability type -
magnitute at max. brightness 5,76
magnitute at min. brightness
photometric system visual, photovisual or Johnson's V

spectral information

spectral class B8

references

to a study 601122D (designation: 21K TAU)

miscanellous

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