g 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

catalogues and names g Sct, HR 6930, HD 170296, SAO 161520, FK5: 696
constellation Scutum

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


position, motion, parallax:

position (J2000) RA: 18h 29min 11,9sec DEC: -14° 33' 57''
position (J1900) RA: 18h 23min 29,8sec DEC: -14° 37' 47''
proper motion (J2000) RA: 0,003 arcsec/a DEC: -0,002 arcsec/a
radial velocity -41 km/s
note: suspected variable radial velocity
rotational velocity 223 km/s (uncertain) (variable)
trigonometric parallax 0,025 arcsec

magnitude

visual magnitude 4,7
(V on UBV Johnson system)

spectral / color information

spectral class A3Vn
B-V-magnitude 0,06
U-B-magnitude 0,06
R-I-magnitude 0,05

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

position, motion, parallax:

position (J2000) RA: 18h 29min 11,857sec DEC: -14° 33' 56,92'' ±0,06 arcsec source: 15
proper motion (J2000) RA: 0,0002 arcsec/a DEC: -0,002 arcsec/a source: 25
radial velocity -41 km/s source: 25
trigonometric parallax 0,025 ±0,002 arcsec source: 25
galactic coord. (B1950) longitude: 17,47° latitude: -1,79°
GCI unit vector (J2000) X: 0,122971 Y: -0,960016 Z: -0,251492

magnitude:

visual 4,7 (observed) source: 25
photovisual 4,7 source: 2
photographic 4,8 source: 2

spectral information:

spectral class A3 source: 96
Morgan-Keenan A3Vn source: 25
B-magnitude 4,76 ±0,05 B-V-magnitude 0,06
U-magnitude 4,82 ±0,05 U-B-magnitude 0,06

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
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 26min 20,804sec DEC: -14° 35' 58,05'' ±0,005 arcsec
position (J2000) RA: 18h 29min 11,863sec DEC: -14° 33' 57,04''
proper motion J1950 (FK4) RA: 0,0001 arcsec/a DEC: -0,005 arcsec/a ±0,001 arcsec/a in RA
±0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0003 arcsec/a DEC: -0,004 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,7 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class A3
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 696
Durchmusterung BD-14 5071
Boss General Catalogue 25220
Henry Draper Catalogue 170296