Tarazed


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 Tarazed, g Aql, NSV 24880, 50 Aql, HR 7525, HD 186791, SAO 105223, FK5: 741, WDS 19463+1037
other names Reda
constellation Aquila

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

note (category: star names): TARAZED; Reda.

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

position, motion, parallax:

position (J2000) RA: 19h 46min 15,6sec DEC: +10 36' 48''
position (J1900) RA: 19h 41min 30,3sec DEC: +10 22' 10''
proper motion (J2000) RA: 0,018 arcsec/a DEC: -0,002 arcsec/a
radial velocity -2 km/s
note: variable radial velocity
rotational velocity <17 km/s (uncertain) (variable)
trigonometric parallax 0,016 arcsec

magnitude

visual magnitude 2,72
(V on UBV Johnson system)

spectral / color information

spectral class K3II
B-V-magnitude 1,52
U-B-magnitude 1,68
R-I-magnitude 0,75
note (category: spectra): Ultraviolet FeII emission.

double/multiple star system information

separation 132,6 arcsec
mag difference (of double or brightest multiple) 8
note Worley (1978) update of the IDS

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

position, motion, parallax:

position (J2000) RA: 19h 46min 15,585sec DEC: +10 36' 47,77'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0012 arcsec/a DEC: -0,002 arcsec/a source: 25
radial velocity -2 km/s source: 25
trigonometric parallax 0,016 0,002 arcsec source: 25
galactic coord. (B1950) longitude: 48,73 latitude: -7,08
GCI unit vector (J2000) X: 0,439561 Y: -0,879127 Z: 0,184179

magnitude:

visual 2,72 (observed) source: 25
photovisual 2,8 source: 2

spectral information:

spectral class K2 source: 96
Morgan-Keenan K3II source: 25
B-magnitude 4,24 0,05 B-V-magnitude 1,52
U-magnitude 5,92 0,05 U-B-magnitude 1,68

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 132,6 arcsec
magnitude difference between brightest and second brightest component 8,1
position angle 258

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: 19h 43min 52,907sec DEC: +10 29' 24,38'' 0,003 arcsec
position (J2000) RA: 19h 46min 15,59sec DEC: +10 36' 47,91''
proper motion J1950 (FK4) RA: 0,0011 arcsec/a DEC: 0,002 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0012 arcsec/a DEC: 0 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 2,8 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class K2
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 741
Durchmusterung BD+10 4043
Boss General Catalogue 27354
Henry Draper Catalogue 186791

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

position and proper motion:

position (J2000) RA: 19h 46,3min DEC: +10 37'
proper motion (J2000) RA: 0,018 arcsec/a DEC: -0,002 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
- 1879 2 258 132,6'' 2,72 10,8 K3II BUP 198

discoverer information:

discoverer code discoverer reference
BUP 198 - -

notes:

note Gamma Aql.