VizieR

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VizieR

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J/AJ/105/499/table1 OB Associations and Spiral Structure in M33 (Regan+ 1993)
The observations (2018 rows)
  recno=1347
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200001 33 38.918 "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+30 32 29.03 "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 30 49.801 "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+30 17 07.00 "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)
_Glon133.587418 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-31.455485 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)
1347recno 1347  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ID1347  (i) [1/2018] Star ID (meta.id;meta.main)
X1872 pix X Coordinate (pos.cartesian.x;instr.det)
V20.48 mag V band Magnitude (phot.mag;em.opt.V)
e_V 0.05 mag V uncertainty (stat.error;pos.cartesian.y)
B20.47 mag B band Magnitude (phot.mag;em.opt.B)
e_B 0.02 mag B uncertainty (stat.error)
U19.00 mag U band Magnitude (blank if undetermined) (phot.mag;em.opt.U)
e_U 0.04 mag U uncertainty (blank if undetermined) (stat.error;pos.cartesian.x)
B-V-0.01 mag B-V Magnitude (phot.color;em.opt.B;em.opt.V)
U-B-1.48 mag U-B Magnitude (blank if undetermined) (phot.color;em.opt.U;em.opt.B)
ass44   [22/58] Association number containing star (meta.id.parent)
Y-263 pix Y Coordinate (pos.cartesian.y;instr.det)

_RA.icrs01 33 38.9 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra;meta.main)
_DE.icrs+30 32 29 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec;meta.main)

RA195001 30 49.8 "h:m:s" (i) Right Ascension (1950) (pos.eq.ra;meta.main)
DE1950+30 17 07 "d:m:s" (i) [30] Declination (1950) (pos.eq.dec;meta.main)
  
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