g Sagitta

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. Combined General Catalogue of Variable Stars (suspected variables)

catalogues and names g Sge, NSV 12638, 12 Sge, HR 7635, HD 189319, SAO 105500, FK5: 752
constellation Sagitta

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: 19h 58min 45,4sec DEC: +19 29' 32''
position (J1900) RA: 19h 54min 18,5sec DEC: +19 13' 14''
proper motion (J2000) RA: 0,066 arcsec/a DEC: 0,024 arcsec/a
radial velocity -33 km/s
note: suspected variable radial velocity
rotational velocity <17 km/s (uncertain) (variable)
trigonometric parallax 0,013 arcsec


visual magnitude 3,47
(V on UBV Johnson system)

spectral / color information

spectral class M0-III
B-V-magnitude 1,57
U-B-magnitude 1,93
R-I-magnitude 0,92
note (category: spectra): Ultraviolet FeII emission.

variability information

variable star identification 12638

miscellaneous information

note (category: group membership): Hyades group.

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

position, motion, parallax:

position (J2000) RA: 19h 58min 45,428sec DEC: +19 29' 31,79'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0046 arcsec/a DEC: 0,024 arcsec/a source: 25
radial velocity -33 km/s source: 25
trigonometric parallax 0,013 0,001 arcsec source: 25
galactic coord. (B1950) longitude: 57,97 latitude: -5,21
GCI unit vector (J2000) X: 0,466909 Y: -0,818935 Z: 0,333678


visual 3,47 (observed) source: 25
photovisual 3,7 source: 2

spectral information:

spectral class K5 source: 96
Morgan-Keenan M0-III source: 25
B-magnitude 5,04 0,05 B-V-magnitude 1,57
U-magnitude 6,97 0,05 U-B-magnitude 1,93


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: 19h 56min 31,938sec DEC: +19 21' 18,47'' 0,004 arcsec
position (J2000) RA: 19h 58min 45,429sec DEC: +19 29' 31,82''
proper motion J1950 (FK4) RA: 0,0046 arcsec/a DEC: 0,025 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0047 arcsec/a DEC: 0,024 arcsec/a
source of proper motion data Determined by source catalog


visual 3,7 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class K5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.


source catalogue FK4, catalogue number: 752
Durchmusterung BD+19 4229
Boss General Catalogue 27672
Henry Draper Catalogue 189319

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


position (J1950) RA: 19h 56min 31,9sec DEC: +19 21' 18''

variability informations:

magnitute at max. brightness 3,46
magnitute at min. brightness 3,55
photometric system visual, photovisual or Johnson's V

spectral information

spectral class K5


to a study 661556D (designation: GAMMA SGE)


There are notes in the published catalog (Kukarkin et al.(1982)).