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I/274/ccdm CCDM (Catalog of Components of Double & Multiple stars (Dommanget+ 2002)
The Catalogue of Components of Double and Multiple (105838 rows)
  CCDM===14321+3818
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Note: the J2000 coordinates are not part of the original catalogue; their accuracy can be low, see the CooFlag column

ColumnValue  Explain   (UCD)
_RAJ200014 32 04.7 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000+38 18 30 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195014 30 03.9 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950+38 31 34 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon067.2631 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat+66.1724 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)

CCDM14321+3818  (Catalogue of the Components of the Double and Multiple stars) identifier (Note 1)   (meta.id;meta.main)
rComp    [B-Z?] Reference component (blank if A) (Note 6)   (meta.code.multip)
CompA   [A-Z?] Concerned component (Note 6)   (meta.code.multip)
Note1    [*&] *=orbit in Dommanget's personal catalog &=orbit WDS 1994 (Note 2)   (meta.code)
Note2    [@%] @ = astrometric binary % = astrometric binary from Hipparcos (meta.code)
Disc   Name of the pair (Discoverer and Number) (Note 3)   (meta.id)
dRAs -1.33 s Remainder of RA in second of time (J2000) (pos.eq.ra;arith.diff)
dDEs 29.6 arcsec Remainder of DE in arcsecond (J2000) (pos.eq.dec;arith.diff)
r_dRAs10   Source code for positions, in refpos.dat (meta.ref;pos.frame)
Year  yr Year of measured relative position (time.epoch;arith.diff)
theta  deg Position angle (degrees) (Note 4)   (pos.posAng)
rho  arcsec angular separation of Comp along theta (pos.angDistance)
Obs 2   for component A: number of components; other component: number of measurements (meta.number)
Vmag 3.0 mag magnitude (phot.mag;em.opt)
SpF0  Spectral type (src.spType)
pmNote*   [*@$#] Origin of the proper motion (Note 7)   (meta.ref;pos.pm;pos.frame)
pmRA -116 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.ra)
pmDE 149 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.dec)
DM+38 2565.0  First identification = DM (Harvard system) (Note 5)   (meta.id)
Name2+38 1345.6  Second identification (Note 5)   (meta.id)
HD127762  HD identifier (meta.id)
m_HD    [/0-9 ?*] second HD (Example: 131843/4) (Note 8)   (meta.code.multip)
ADS/BDSA 9300  ADS (A) or BDS identifier (B) (meta.id)
m_ADS/BDS    [aN] suffix (a) to an inserted ADS identifier, or a note (N) exists in the Index. (meta.code.multip)
n_IDS    [*W] The * means that the Index identifier was built for a new component or system; the W indicates a WDS (1994) identifier (meta.note)
IDS14280N3845A  Original Index (1976.5) or WDS (1994) identifier, based on equinox 1900 (meta.id)
HIC 71075   Hipparcos Input Catalogue (Turon et al., Cat. I/196) identifier (also HIP I/239) (meta.id)

CooFlag0   [0/4] Indicator position computation (Note 9)   (meta.code.qual)
RAJ2000218.0195 deg Right Ascension J2000 (degrees) (Note 9)   (pos.eq.ra;meta.main)
DEJ2000+38.3082 deg Declination J2000 (degrees) (Note 9)   (pos.eq.dec;meta.main)
ColumnValue  Explain   (UCD)
_RAJ200014 32 08.1 "h:m:s" Right ascension (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEJ2000+38 18 06 "d:m:s" Declination (FK5, Equinox=J2000.0) at Epoch=J2000, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_RAB195014 30 06.8 "h:m:s" Right ascension (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.ra)
_DEB1950+38 31 18 "d:m:s" Declination (FK4, Equinox=B1950.0) at Epoch=J1950, proper motions taken into account (computed by VizieR, not part of the original data) (pos.eq.dec)
_Glon067.2387 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat+66.1643 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)

CCDM14321+3818  (Catalogue of the Components of the Double and Multiple stars) identifier (Note 1)   (meta.id;meta.main)
rComp    [B-Z?] Reference component (blank if A) (Note 6)   (meta.code.multip)
CompB   [A-Z?] Concerned component (Note 6)   (meta.code.multip)
Note1    [*&] *=orbit in Dommanget's personal catalog &=orbit WDS 1994 (Note 2)   (meta.code)
Note2    [@%] @ = astrometric binary % = astrometric binary from Hipparcos (meta.code)
DiscBU 616  Name of the pair (Discoverer and Number) (Note 3)   (meta.id)
dRAs  s Remainder of RA in second of time (J2000) (pos.eq.ra;arith.diff)
dDEs  arcsec Remainder of DE in arcsecond (J2000) (pos.eq.dec;arith.diff)
r_dRAs    Source code for positions, in refpos.dat (meta.ref;pos.frame)
Year1925 yr Year of measured relative position (time.epoch;arith.diff)
theta111 deg Position angle (degrees) (Note 4)   (pos.posAng)
rho 33.4 arcsec angular separation of Comp along theta (pos.angDistance)
Obs 9   for component A: number of components; other component: number of measurements (meta.number)
Vmag12.7 mag magnitude (phot.mag;em.opt)
Sp   Spectral type (src.spType)
pmNote    [*@$#] Origin of the proper motion (Note 7)   (meta.ref;pos.pm;pos.frame)
pmRA  mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.ra)
pmDE  mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.dec)
DM   First identification = DM (Harvard system) (Note 5)   (meta.id)
Name2   Second identification (Note 5)   (meta.id)
HD   HD identifier (meta.id)
m_HD    [/0-9 ?*] second HD (Example: 131843/4) (Note 8)   (meta.code.multip)
ADS/BDSA 9300  ADS (A) or BDS identifier (B) (meta.id)
m_ADS/BDS    [aN] suffix (a) to an inserted ADS identifier, or a note (N) exists in the Index. (meta.code.multip)
n_IDS    [*W] The * means that the Index identifier was built for a new component or system; the W indicates a WDS (1994) identifier (meta.note)
IDS14280N3845B  Original Index (1976.5) or WDS (1994) identifier, based on equinox 1900 (meta.id)
HIC    Hipparcos Input Catalogue (Turon et al., Cat. I/196) identifier (also HIP I/239) (meta.id)

CooFlag1   [0/4] Indicator position computation (Note 9)   (meta.code.qual)
RAJ2000218.0336 deg Right Ascension J2000 (degrees) (Note 9)   (pos.eq.ra;meta.main)
DEJ2000+38.3018 deg Declination J2000 (degrees) (Note 9)   (pos.eq.dec;meta.main)
  

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