k Tucanae


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 k Tuc, NSV 00454, HR 377, HD 7788, SAO 248346, WDS 01158-6853A
constellation Tucana

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


position, motion, parallax:

position (J2000) RA: 1h 15min 46,1sec DEC: -68 52' 34''
position (J1900) RA: 1h 12min 22,7sec DEC: -69 24' 26''
proper motion (J2000) RA: 0,399 arcsec/a DEC: 0,107 arcsec/a
radial velocity 9 km/s
rotational velocity 111 km/s (uncertain) (variable)
trigonometric parallax 0,061 arcsec
note (category: dynamical parallaxes): 0.049".

magnitude

visual magnitude 4,86
(V on UBV Johnson system)

spectral / color information

spectral class F6IV
B-V-magnitude 0,47
U-B-magnitude 0,03
R-I-magnitude 0,22

variability information

variable star identification 454

double/multiple star system information

number of components of multiple star system 4
separation 5,2 arcsec
mag difference (of double or brightest multiple) 2,2
component ID AB
note Worley (1978) update of the IDS
note (category: double and multiple data): Quadruple system consisting of two close CPM pairs separated by 320": CPD -69d45, components AB, 5.1, 7.3, 5" and CPD -69d44, components CD. AB, 1222.4y, a = 7.64"; CD 7.8 G5, 8.2, 86.2y, a = 1.12".

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

position, motion, parallax:

position (J2000) RA: 1h 15min 46,243sec DEC: -68 52' 33,58'' 0,19 arcsec source: 16
proper motion (J2000) RA: 0,0766 arcsec/a DEC: 0,104 arcsec/a source: 25
radial velocity 9 km/s source: 25
trigonometric parallax 0,061 0,006 arcsec source: 25
galactic coord. (B1950) longitude: 299,66 latitude: -48,1
GCI unit vector (J2000) X: 0,34087 Y: 0,11699 Z: -0,932803

magnitude:

visual 4,86 (observed) source: 25
photovisual 5 source: 2
photographic 5,5 source: 2

spectral information:

spectral class F8 source: 96
Morgan-Keenan F6IV source: 25
B-magnitude 5,33 0,05 B-V-magnitude 0,47
U-magnitude 5,36 0,05 U-B-magnitude 0,03

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 5,1 arcsec
magnitude difference between brightest and second brightest component 2,2
position angle 325

component magnitude spectral class catalogue(s)/name(s)
A 4,86 F8 k Tucanae, HR 377, HD 7788, SAO 248346
B - -
C 7,22 G5

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
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: 1h 14min 4,616sec DEC: -69 8' 28,63'' 0,032 arcsec
position (J2000) RA: 1h 15min 46,123sec DEC: -68 52' 33,67''
proper motion J1950 (FK4) RA: 0,0758 arcsec/a DEC: 0,112 arcsec/a 0,005 arcsec/a in RA
0,005 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0738 arcsec/a DEC: 0,107 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5,1 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class F8
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

source catalogue GC, catalogue number: 1536
Durchmusterung CP-69 45A
Boss General Catalogue 1536
Henry Draper Catalogue 7788

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

position and proper motion:

position (J2000) RA: 1h 15,8min DEC: -68 53'
proper motion (J2000) RA: 0,403 arcsec/a DEC: 0,093 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
AB 1836 56 16 4,7'' 5,1 7,3 F6IV HJ 3423
1990 325 5,1''
A-CD 1874 2 309 319,3'' - - - HJ 3423
CD 1897 58 180 1,2'' 8,1 8,6 K2V I 27
1991 230 9''

discoverer information:

discoverer code discoverer reference
HJ 3423 Herschel, J. -
I 27 Innes, R.T.A. -

notes:

note Kappa Tuc. A premature orbit has been computed. CD; P = 86yr., a = 1.12", motion direct.

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

position:

position (J1950) RA: 1h 14min 4,6sec DEC: -69 8' 29''

variability informations:

magnitute at min. brightness
photometric system

spectral information

spectral class F6

references

to a study 670950D (designation: HR 377)

miscanellous

designation in the GCVS catalogue SMC V2295
There are notes in the published catalog (Kukarkin et al.(1982)).