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=1277
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200001 33 39.019 "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 37.03 "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 49.901 "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 15.00 "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)
_Glon133.587340 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-31.453235 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)
1277recno 1277  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

ID1277  (i) [1/2018] Star ID (meta.id;meta.main)
X1837 pix X Coordinate (pos.cartesian.x;instr.det)
V20.18 mag V band Magnitude (phot.mag;em.opt.V)
e_V 0.18 mag V uncertainty (stat.error;pos.cartesian.y)
B20.16 mag B band Magnitude (phot.mag;em.opt.B)
e_B 0.13 mag B uncertainty (stat.error)
U  mag U band Magnitude (blank if undetermined) (phot.mag;em.opt.U)
e_U  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  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-252 pix Y Coordinate (pos.cartesian.y;instr.det)

_RA.icrs01 33 39.0 "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 37 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec;meta.main)

RA195001 30 49.9 "h:m:s" (i) Right Ascension (1950) (pos.eq.ra;meta.main)
DE1950+30 17 15 "d:m:s" (i) [30] Declination (1950) (pos.eq.dec;meta.main)
  
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