e Scuti


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 e Sct, HR 7032, HD 173009, SAO 142546, FK5: 702, WDS 18435-0817A
constellation Scutum

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


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

position, motion, parallax:

position (J2000) RA: 18h 43min 31,3sec DEC: -8 16' 31''
position (J1900) RA: 18h 38min 4,4sec DEC: -8 22' 27''
proper motion (J2000) RA: 0,022 arcsec/a DEC: 0,008 arcsec/a
radial velocity -11 km/s
note: variable radial velocity
rotational velocity <19 km/s
trigonometric parallax 0,016 arcsec

magnitude

visual magnitude 4,9
(V on UBV Johnson system)

spectral / color information

spectral class G8IIb
B-V-magnitude 1,12
U-B-magnitude 0,87
R-I-magnitude 0,61
note (category: spectra): Also classified G5III.

double/multiple star system information

number of components of multiple star system 4
separation 37,6 arcsec
mag difference (of double or brightest multiple) 8,6
component ID AC

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

position, motion, parallax:

position (J2000) RA: 18h 43min 31,259sec DEC: -8 16' 30,81'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0015 arcsec/a DEC: 0,008 arcsec/a source: 25
radial velocity -11 km/s source: 25
trigonometric parallax 0,016 0,002 arcsec source: 25
galactic coord. (B1950) longitude: 24,67 latitude: -2,02
GCI unit vector (J2000) X: 0,186792 Y: -0,971799 Z: -0,143928

magnitude:

visual 4,9 (observed) source: 25
photovisual 5,1 source: 2
photographic 5,9 source: 2

spectral information:

spectral class G5 source: 96
Morgan-Keenan G8IIb source: 25
B-magnitude 6,02 0,05 B-V-magnitude 1,12
U-magnitude 6,89 0,05 U-B-magnitude 0,87

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 13,6 arcsec
magnitude difference between brightest and second brightest component 9,7
position angle 98

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: 18h 40min 47,819sec DEC: -8 19' 34,55'' 0,005 arcsec
position (J2000) RA: 18h 43min 31,271sec DEC: -8 16' 30,79''
proper motion J1950 (FK4) RA: 0,0014 arcsec/a DEC: 0,007 arcsec/a 0,002 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0016 arcsec/a DEC: 0,008 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 the "Henry Draper Catalogue".

spectral information:

spectral class G5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 702
Durchmusterung BD-08 4686
Boss General Catalogue 25610
Henry Draper Catalogue 173009

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

position and proper motion:

position (J2000) RA: 18h 43,5min DEC: -8 17'
proper motion (J2000) RA: 0,022 arcsec/a DEC: 0,008 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 1910 2 98 13,6'' 4,9 14,6 G8II J 104
AC 1910 2 195 37,6'' 4,9 13,7 - J 104
1982 - 39,3''
AD 1934 1 312 15,4'' 4,9 14,7 - KUI 87
AE 1982 1 98 43,3'' 5,1 12,6 - SLE 237
AF 1982 1 142 77,3'' 5,1 12,8 - SLE 237

discoverer information:

discoverer code discoverer reference
J 104 Jonckheere, R. -
KUI 87 Kuiper, G.P. -
SLE 237 Soulie, G. -

notes:

note Epsilon Scl.