VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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J/A+A/564/A79/table2 Proper motions of open clusters from UCAC4 (Dias+, 2014)
List of the parameters provided by the statistical method for 1805 open clusters (1805 rows)
  recno=1151
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200020 41 03.9984 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000. (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+16 37 05.988 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000. (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)
_RAB195020 38 45.4191 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950. (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+16 26 22.244 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950. (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)
_Glon061.1073440 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-15.1977187 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)
1151recno 1151  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

n_Cluster*   [*] * indicates previously unpublished proper motions (table3) (meta.note)
ClusterNGC 6950  (i) Cluster name (meta.id;meta.main)

V   V indicates that a mean radial velocity exists in table4 (meta.ref.url)

RAJ2000310.26666 deg (i) Right Ascension J2000 (degrees), at J2000.0 (pos.eq.ra;meta.main)
DEJ2000+16.61833 deg (i) Declination J2000 (degrees), at J2000.0 (pos.eq.dec;meta.main)
Rad 8.50 arcmin Radius (centered in the coordinates of the cluster) used to extract the stars from the UCAC4 Catalogue (phys.angSize)
N 380   [11/336543] Number of UCAC4 stars in the field (meta.number)
Nc 299   [1/246150] Estimated number of cluster members (meta.number)
pmRAc -1.77 mas/yr Mean proper motion of the cluster (µ_α.cos(δ), ICRS) (pos.pm;pos.eq.ra)
e_pmRAc 3.70 mas/yr Error in pmRAc (stat.error;pos.pm;pos.eq.ra)
pmDEc -3.62 mas/yr Mean proper motion of the cluster (µδ, ICRS) (pos.pm;pos.eq.dec)
e_pmDEc 3.41 mas/yr Error in pmDEc (stat.error;pos.pm;pos.eq.dec)
rhoc 0.38   [-1/1] Correlation coefficient ρc of the cluster stars (stat.correlation)
Nf 81   [0/90393] Estimated number of field stars in the cluster (meta.number)
pmRAf 0.79 mas/yr Mean proper motion of the field stars in µα.cos(δ), ICRS (pos.pm;pos.eq.ra)
e_pmRAf16.29 mas/yr Standard deviation of pmRAf (stat.error;pos.pm;pos.eq.ra)
pmDEf -4.40 mas/yr Mean proper motion of the field stars in µδ, ICRS (pos.pm;pos.eq.dec)
e_pmDEf14.41 mas/yr Standard deviation of pmDEf (stat.error;pos.pm;pos.eq.dec)
rhof 0.18   [-1/1] Correlation coefficient ρf of the field stars (stat.correlation)
FileNameNGC_6950.dat  Name of the table in "pm" subdirectory with proper motions and membership (meta.id;meta.table)
n_FileName    [2] 2 when a second file exists in subdirectory pm2, baased on PPMXL (I/317) (meta.note)

oclocl  Details about this cluster from the last version of the Open Cluster Catalog (Dias et al., Cat. B/ocl) (meta.ref.url)
SimbadNameNGC 6950  Designation understandable by the Simbad data-base (meta.id)
  
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