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VizieR

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VII/158/table1 Revised and Updated Catalog of Quasi-stellar Objects (Hewitt+ 1993)
The catalogue (22484 rows)
  recno=3831
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200001 25 28.8203 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000-00 05 55.596 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195001 22 55.1606 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950-00 21 30.996 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon141.1581341 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-61.7599309 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
3831recno 3831  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
M0  1 for the rows belonging to the original table 1 (main description of the QSO) (meta.note)

CooDes0122-003  Designation based on 1950 Coordinates (Note 1)   (meta.id;meta.main)
RA195001 22 55.16 "h:m:s" (i) Right Ascension 1950 (Note 1)   (pos.eq.ra;meta.main)
DE1950-00 21 31.0 "d:m:s" (i) Declination 1950 (Note 1)   (pos.eq.dec;meta.main)
BLLac    [B] "B" indicates a BL Lac object (Note 1)   (meta.note)
Sel+   [RXSVCO +] Selection technique(s) (Note 2)   (meta.note)
IdOC 038  Other name (meta.id)
V  mag Apparent magnitude; often only mpg (phot.mag;em.opt.V)
var    [*] * indicates a variability (meta.note)
B-V  mag B-V (phot.color;em.opt.B;em.opt.V)
U-B  mag U-B (phot.color;em.opt.U;em.opt.B)
z(em)    Emission redshift (src.redshift)
u_z(em)    [)] Uncertainty flag on z(em) (meta.code.error)
n_z(em)    [*+] Note on z(em) (Note 3)   (meta.note)
ElementMg II  Emission line on which the redshift is based (element name) (meta.id;phys.atmol.element)
Wl2798 0.1nm Wavelength of Emission element (Angstroem) (em.wl)
z(abs)    Absorption redshift (src.redshift)
r_Id    Reference for identification (meta.ref;pos.frame)
r_z(em) 480   Reference for emission redshift (meta.ref;pos.frame)
ref_b    [b*] Addition to r_z(em) (Note 5)   (meta.code)
r_var    Reference for variability (meta.ref;pos.frame)
r_Sel 803   Reference for Radio (meta.ref;pos.frame)
r_z(abs)    Reference for absorption redshift (meta.ref;pos.frame)
Notes465fc faint gals  Notes (Note 4)   (meta.note)

_RA.icrs01 25 28.82 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-00 05 55.6 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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