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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===17268-4550
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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)
_RAJ200017 26 51.4 "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)
_DEJ2000-45 50 37 "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)
_RAB195017 23 09.8 "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)
_DEB1950-45 48 02 "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)
_Glon343.7170 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-05.9403 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)

CCDM17268-4550  (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 3.42 s Remainder of RA in second of time (J2000) (pos.eq.ra;arith.diff)
dDEs -36.7 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 3   for component A: number of components; other component: number of measurements (meta.number)
Vmag 6.0 mag magnitude (phot.mag;em.opt)
SpB9  Spectral type (src.spType)
pmNote*   [*@$#] Origin of the proper motion (Note 7)   (meta.ref;pos.pm;pos.frame)
pmRA -39 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.ra)
pmDE -40 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.dec)
DM-4511531.2  First identification = DM (Harvard system) (Note 5)   (meta.id)
Name2 227971.8  Second identification (Note 5)   (meta.id)
HD157661  HD identifier (meta.id)
m_HD    [/0-9 ?*] second HD (Example: 131843/4) (Note 8)   (meta.code.multip)
ADS/BDS   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)
IDS17195S4545A  Original Index (1976.5) or WDS (1994) identifier, based on equinox 1900 (meta.id)
HIC 85389   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)
RAJ2000261.7142 deg Right Ascension J2000 (degrees) (Note 9)   (pos.eq.ra;meta.main)
DEJ2000-45.8435 deg Declination J2000 (degrees) (Note 9)   (pos.eq.dec;meta.main)
ColumnValue  Explain   (UCD)
_RAJ200017 26 51.4 "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)
_DEJ2000-45 50 36 "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)
_RAB195017 23 09.6 "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)
_DEB1950-45 48 03 "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)
_Glon343.7172 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-05.9400 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)

CCDM17268-4550  (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)
DiscHJ 4949  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)
Year1953 yr Year of measured relative position (time.epoch;arith.diff)
theta256 deg Position angle (degrees) (Note 4)   (pos.posAng)
rho 2.2 arcsec angular separation of Comp along theta (pos.angDistance)
Obs99   for component A: number of components; other component: number of measurements (meta.number)
Vmag 6.7 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/BDS   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)
IDS17195S4545B  Original Index (1976.5) or WDS (1994) identifier, based on equinox 1900 (meta.id)
HIC 85389   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)
RAJ2000261.7141 deg Right Ascension J2000 (degrees) (Note 9)   (pos.eq.ra;meta.main)
DEJ2000-45.8432 deg Declination J2000 (degrees) (Note 9)   (pos.eq.dec;meta.main)
ColumnValue  Explain   (UCD)
_RAJ200017 26 44.5 "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)
_DEJ2000-45 49 25 "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)
_RAB195017 23 02.9 "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)
_DEB1950-45 46 51 "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)
_Glon343.7228 deg Galactic longitude (computed by VizieR, not part of the original data) (pos.galactic.lon)
_Glat-05.9126 deg Galactic latitude (computed by VizieR, not part of the original data) (pos.galactic.lat)

CCDM17268-4550  (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)
CompC   [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)
DiscDUN 216  Name of the pair (Discoverer and Number) (Note 3)   (meta.id)
dRAs -3.46 s Remainder of RA in second of time (J2000) (pos.eq.ra;arith.diff)
dDEs 35.4 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)
Year1836 yr Year of measured relative position (time.epoch;arith.diff)
theta313 deg Position angle (degrees) (Note 4)   (pos.posAng)
rho 103.0 arcsec angular separation of Comp along theta (pos.angDistance)
Obs 3   for component A: number of components; other component: number of measurements (meta.number)
Vmag 7.6 mag magnitude (phot.mag;em.opt)
SpA0  Spectral type (src.spType)
pmNote*   [*@$#] Origin of the proper motion (Note 7)   (meta.ref;pos.pm;pos.frame)
pmRA -13 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.ra)
pmDE -14 mas/yr annual proper motion in 0"001 (pos.pm;pos.eq.dec)
DM-4511527.2  First identification = DM (Harvard system) (Note 5)   (meta.id)
Name2 227966.8  Second identification (Note 5)   (meta.id)
HD157649  HD identifier (meta.id)
m_HD    [/0-9 ?*] second HD (Example: 131843/4) (Note 8)   (meta.code.multip)
ADS/BDS   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)
IDS17195S4545C  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)

CooFlag0   [0/4] Indicator position computation (Note 9)   (meta.code.qual)
RAJ2000261.6856 deg Right Ascension J2000 (degrees) (Note 9)   (pos.eq.ra;meta.main)
DEJ2000-45.8235 deg Declination J2000 (degrees) (Note 9)   (pos.eq.dec;meta.main)
  

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