Adhafera


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 Adhafera, z Leo, NSV 04804, 36 Leo, HR 4031, HD 89025, SAO 81265, FK5: 384, WDS 10167+2325A
constellation Leo

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

note (category: star names): Adhafera; Aldhafara; Aldhafera.

object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

position, motion, parallax:

position (J2000) RA: 10h 16min 41,4sec DEC: +23 25' 2''
position (J1900) RA: 10h 11min 7,7sec DEC: +23 54' 57''
proper motion (J2000) RA: 0,018 arcsec/a DEC: -0,007 arcsec/a
radial velocity -16 km/s
note: spectroscopic binaries
rotational velocity 84 km/s (uncertain) (variable)
trigonometric parallax 0,017 arcsec

magnitude

visual magnitude 3,44
(V on UBV Johnson system)

spectral / color information

spectral class F0III
B-V-magnitude 0,31
U-B-magnitude 0,2
R-I-magnitude 0,19

variability information

variable star identification 4804

double/multiple star system information

separation 325,9 arcsec
mag difference (of double or brightest multiple) 2,3
note Worley (1978) update of the IDS
note (category: double and multiple data): Primary unresolved by speckle interferometry 1982.17.

miscellaneous information

note (category: group membership): Sirius group; UMa stream.

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

position, motion, parallax:

position (J2000) RA: 10h 16min 41,409sec DEC: +23 25' 2,26'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0013 arcsec/a DEC: -0,007 arcsec/a source: 25
radial velocity -16 km/s source: 25
trigonometric parallax 0,017 0,002 arcsec source: 25
galactic coord. (B1950) longitude: 210,24 latitude: 54,95
GCI unit vector (J2000) X: -0,825972 Y: 0,399779 Z: 0,397425

magnitude:

visual 3,44 (observed) source: 25
photovisual 3,7 source: 2

spectral information:

spectral class F0 source: 96
Morgan-Keenan F0III source: 25
B-magnitude 3,75 0,05 B-V-magnitude 0,31
U-magnitude 3,95 0,05 U-B-magnitude 0,2

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 325,9 arcsec
magnitude difference between brightest and second brightest component 2,5
position angle 340

component magnitude spectral class catalogue(s)/name(s)
A 3,44 F0 Adhafera, z Leonis, 36 Leo, HR 4031, HD 89025, SAO 81265
B 5,97 G0 35 Leo, HR 4030, HD 89010, SAO 81260

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: 10h 13min 54,758sec DEC: +23 40' 1,94'' 0,004 arcsec
position (J2000) RA: 10h 16min 41,406sec DEC: +23 25' 2,19''
proper motion J1950 (FK4) RA: 0,0013 arcsec/a DEC: -0,012 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0013 arcsec/a DEC: -0,008 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3,6 (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: 384
Durchmusterung BD+24 2209
Boss General Catalogue 14107
Henry Draper Catalogue 89025

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

position and proper motion:

position (J2000) RA: 10h 16,7min DEC: +23 25'
proper motion (J2000) RA: 0,018 arcsec/a DEC: -0,007 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 12 343 314,4'' 3,44 5,9 F0III STF 18
1925 340 325,9''

discoverer information:

discoverer code discoverer reference
STF 18 Struve, F.G.W. -

notes:

note Zeta Leo. A spectroscopic binary. B is BD+29@2207. Proper motion of B -209 +039.

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

position:

position (J1950) RA: 10h 13min 54,8sec DEC: +23 40' 2''

variability informations:

magnitute at max. brightness 3,42
magnitute at min. brightness 3,46
photometric system visual, photovisual or Johnson's V

spectral information

spectral class F0

references

to a study 731800D (designation: HR 4031)

miscanellous

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