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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=16724
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200015 12 50.5283 "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)
_DEJ2000-09 05 59.493 "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)
_RAB195015 10 08.9007 "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)
_DEB1950-08 54 47.203 "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)
_Glon351.2893137 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+40.1388249 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)
16724recno 16724  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
M1  1 for the rows belonging to the original table 1 (main description of the QSO) (meta.note)

CooDes1510-089  Designation based on 1950 Coordinates (Note 1)   (meta.id;meta.main)
RA195015 10 08.90 "h:m:s" (i) Right Ascension 1950 (Note 1)   (pos.eq.ra;meta.main)
DE1950-08 54 47.2 "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)
SelRX   [RXSVCO +] Selection technique(s) (Note 2)   (meta.note)
IdPKS  Other name (meta.id)
V16.74 mag Apparent magnitude; often only mpg (phot.mag;em.opt.V)
var*   [*] * indicates a variability (meta.note)
B-V 0.17 mag B-V (phot.color;em.opt.B;em.opt.V)
U-B-0.74 mag U-B (phot.color;em.opt.U;em.opt.B)
z(em) 0.361   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) 0.3510   Absorption redshift (src.redshift)
r_Id 57   Reference for identification (meta.ref;pos.frame)
r_z(em) 101   Reference for emission redshift (meta.ref;pos.frame)
ref_b    [b*] Addition to r_z(em) (Note 5)   (meta.code)
r_var 80   Reference for variability (meta.ref;pos.frame)
r_Sel 128   Reference for Radio (meta.ref;pos.frame)
r_z(abs) 101   Reference for absorption redshift (meta.ref;pos.frame)
Notes112,1451ubv, 156,704,900,  Notes (Note 4)   (meta.note)

_RA.icrs15 12 50.53 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-09 05 59.5 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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