Rastaban


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


catalogues and names Rastaban, b Dra, 23 Dra, HR 6536, HD 159181, SAO 30429, FK5: 653, WDS 17304+5218A
other names Alwaid, Asuia, Rastaben
constellation Draco

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

note (category: star names): Rastaban; Alwaid; Asuia; Rastaben.

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

position, motion, parallax:

position (J2000) RA: 17h 30min 26sec DEC: +52 18' 5''
position (J1900) RA: 17h 28min 10,3sec DEC: +52 22' 31''
proper motion (J2000) RA: -0,016 arcsec/a DEC: 0,015 arcsec/a
radial velocity -20 km/s
note: variable radial velocity
rotational velocity 13 km/s (uncertain) (variable)
trigonometric parallax 0,013 arcsec

magnitude

visual magnitude 2,79
(V on UBV Johnson system)

spectral / color information

spectral class G2Ib-IIa
B-V-magnitude 0,98
U-B-magnitude 0,64
R-I-magnitude 0,48
note (category: spectra): Unusually broad He 10830.

double/multiple star system information

number of components of multiple star system 3
separation 4,2 arcsec
mag difference (of double or brightest multiple) 8,9
component ID AB

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

position, motion, parallax:

position (J2000) RA: 17h 30min 25,955sec DEC: +52 18' 5,12'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0017 arcsec/a DEC: 0,015 arcsec/a source: 25
radial velocity -20 km/s source: 25
trigonometric parallax 0,013 0,001 arcsec source: 25
galactic coord. (B1950) longitude: 79,58 latitude: 33,31
GCI unit vector (J2000) X: -0,078673 Y: -0,606425 Z: 0,791239

magnitude:

visual 2,79 (observed) source: 25
photovisual 3 source: 2

spectral information:

spectral class G0 source: 96
Morgan-Keenan G2Ib-IIa source: 25
B-magnitude 3,77 0,05 B-V-magnitude 0,98
U-magnitude 4,41 0,05 U-B-magnitude 0,64

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 4,2 arcsec
magnitude difference between brightest and second brightest component 11,2
position angle 13

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: 17h 29min 18,009sec DEC: +52 20' 15,65'' 0,003 arcsec
position (J2000) RA: 17h 30min 25,957sec DEC: +52 18' 5,07''
proper motion J1950 (FK4) RA: -0,0024 arcsec/a DEC: 0,013 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0017 arcsec/a DEC: 0,014 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

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

spectral information:

spectral class G0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 653
Durchmusterung BD+52 2065
Boss General Catalogue 23741
Henry Draper Catalogue 159181

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

position and proper motion:

position (J2000) RA: 17h 30,4min DEC: +52 18'
proper motion (J2000) RA: -0,016 arcsec/a DEC: 0,015 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 1889 7 13 4,2'' 2,79 14 G2Ib-IIa BU 1090
AC 1912 2 157 115,6'' 2,79 12,7 - BU 1090
1960 156 117,4''

discoverer information:

discoverer code discoverer reference
BU 1090 Burnham, S.W. -

notes:

note Beta Dra.