Access to Astronomical Catalogues

← Click to display the menu
III/145       Radial Velocities in the Cardinal Directions   (Sandage+ 1987)

U, V, W Velocity Components for the Old Disk Using Radial Velocities of 1295 Stars in the Three Cardinal Directions Sandage A., Fouts G. <Astron. Jour. 93, 592, (1987)> =1987AJ.....93..592S
ADC_Keywords: Radial velocities Abstract: Radial velocities are presented for 430 stars in the U direction (l=0,b=0), 445 stars in the V direction (l=90,b=0) and 420 stars in the W direction (b=90). The stars were chosen from the SAO catalog to be within about 10deg of the respective cardinal directions, to be brighter than m(pg) about 10.5mag, and between spectral classes A5 and K0. Except for the K0 stars, almost all are dwarfs. They were chosen to present a kinematically unbiased selection, as the intent was to understand the percentage of stars in each kinematic component of the galaxy. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file u.dat 52 430 Radial velocities for stars within 10deg of (0,0) v.dat 52 445 Radial velocities for stars within 10deg of (90,0) w.dat 52 420 Radial velocities for stars within 10deg of (0,90)
Byte-by-byte Description of file: u.dat, v.dat, w.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name *Star name 9 A1 --- m_Name Component 11- 12 I2 h RAh Right ascension (1950) hours 13- 14 I2 min RAm Right ascension (1950) minutes 15- 16 I2 s RAs Right ascension (1950) seconds 17 A1 --- DE- Declination sign 18- 19 I2 deg DEd Declination (1950) degrees 20- 21 I2 arcmin DEm Declination (1950) minutes 22- 23 I2 arcsec DEs Declination (1950) seconds 25- 26 A2 --- Sp Spectral type 28- 31 F4.1 mag Vmag ?Visual Magnitude 33- 36 F4.1 mag Pmag ?Photographic magnitude 38- 43 F6.1 km/s RV Radial Velocity 45- 48 F4.1 km/s e_RV ?Standard deviation of radial velocity 49 A1 --- --- [(]Left parenthesis 50- 51 I2 --- o_RV ?Number of measurements of radial velocity 52 A1 --- --- [)]Right parenthesis
Note on Name: Star is either from SAO (Cat. I/131) when it stars by "SAO", or from the BD (Cat. I/122) when its stars by a "+". SAO is used in u.dat and w.dat; and BD in v.dat
History: * 29-Sep-1995 (Nancy G. Roman, ADC): Several corrections in the file "v.dat": -- in line 155 (47-3650) the record as it was received is appended by * 471420. This does not appear in this version or in the printed version. -- in lines 155 and 335, the BD zone was prefixed by NX. This has been changed to X in the comp column. It apparently is another star near the BD star numbered. * 16-Mar-2005: all 3 files changed to an identical format.
(End) Nancy G. Roman [ADC/SSDOO] 29-Sep-1995
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact