Nash


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 Nash, g2Sgr, NSV 10173, 10 Sgr, HR 6746, HD 165135, SAO 209696, FK5: 679
other names Alnasl, Alwazl, Zujj al Nushshabah, Nushaba
constellation Sagittarius

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

note (category: star names): Nash; Alnasl; Alwazl; Zujj al Nushshabah; Nushaba. Gamma1 or gamma2 Sgr; see HR 6742.

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

position, motion, parallax:

position (J2000) RA: 18h 5min 48,5sec DEC: -30 25' 27''
position (J1900) RA: 17h 59min 23sec DEC: -30 25' 31''
proper motion (J2000) RA: -0,053 arcsec/a DEC: -0,185 arcsec/a
radial velocity 22 km/s
note: spectroscopic binaries
trigonometric parallax 0,025 arcsec

magnitude

visual magnitude 2,99
(V on UBV Johnson system)

spectral / color information

spectral class K0III
B-V-magnitude 1
U-B-magnitude 0,77
R-I-magnitude 0,51

variability information

variable star identification 10173

miscellaneous information

note (category: group membership): Wolf 630 group.

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

position, motion, parallax:

position (J2000) RA: 18h 5min 48,491sec DEC: -30 25' 26,69'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0041 arcsec/a DEC: -0,185 arcsec/a source: 25
radial velocity 22 km/s source: 25
trigonometric parallax 0,025 0,002 arcsec source: 25
galactic coord. (B1950) longitude: 0,93 latitude: -4,54
GCI unit vector (J2000) X: 0,021851 Y: -0,862024 Z: -0,506396

magnitude:

visual 2,99 (observed) source: 25
photovisual 3,1 source: 2
photographic 4,1 source: 2

spectral information:

spectral class K0 source: 96
Morgan-Keenan K0+III source: 25
B-magnitude 3,99 0,05 B-V-magnitude 1
U-magnitude 4,76 0,05 U-B-magnitude 0,77

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 2min 35,678sec DEC: -30 25' 35,8'' 0,006 arcsec
position (J2000) RA: 18h 5min 48,488sec DEC: -30 25' 26,66''
proper motion J1950 (FK4) RA: -0,0041 arcsec/a DEC: -0,185 arcsec/a 0,001 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0041 arcsec/a DEC: -0,185 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3,1 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class K0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 679
Durchmusterung CD-3015215
Boss General Catalogue 24632
Henry Draper Catalogue 165135

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

position:

position (J1950) RA: 18h 2min 35,7sec DEC: -30 25' 36''

variability informations:

variability type -
magnitute at max. brightness 2,98
magnitute at min. brightness
photometric system visual, photovisual or Johnson's V

spectral information

spectral class K0

references

to a study 0807D (designation: 28G SGR)

miscanellous

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