VizieR

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III/135A/catalog

Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)

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Henry Draper catalogue (272150 rows)

recno=20720

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*Column*	*Value*		*Explain (UCD)*
_RAJ2000	03 19 32.6	"h:m:s"	Right ascension (FK5, Equinox=J2000.0) at Epoch=J1900. (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) (POS_EQ_RA)
_DEJ2000	-21 45 13	"d:m:s"	Declination (FK5, Equinox=J2000.0) at Epoch=J1900. (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) (POS_EQ_DEC)
_RAB1950	03 17 19.2	"h:m:s"	Right ascension (FK4, Equinox=B1950.0) at Epoch=J1900. (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) (POS_EQ_RA)
_DEB1950	-21 56 03	"d:m:s"	Declination (FK4, Equinox=B1950.0) at Epoch=J1900. (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) (POS_EQ_DEC)
_Glon	212.0849	deg	Galactic longitude at Epoch=J1900. (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) (POS_GAL_LON)
_Glat	-55.9887	deg	Galactic latitude at Epoch=J1900. (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) (POS_GAL_LAT)
20720recno	20720		Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD)

HD	20720		⁽ⁱ⁾ [1/272150] Henry Draper Catalog (HD) number (meta.id;meta.main) (ID_MAIN)
DM	BD-22 584		Durchmusterung identification (Note 1) (meta.id) (ID_ALTERNATIVE)
RAB1900	03 15.1	"h:m:s"	⁽ⁱ⁾ Hours RA, equinox B1900, epoch 1900.0 (pos.eq.ra;meta.main) (POS_EQ_RA_MAIN)
DEB1900	-22 07	"d:m:s"	⁽ⁱ⁾ Degrees Dec, equinox B1900, epoch 1900.0 (pos.eq.dec;meta.main) (POS_EQ_DEC_MAIN)
q_Ptm	0		[0/1] Code for Ptm: 0 = measured, 1 = value inferred from Ptg and spectral type (meta.code.qual) (CODE_QUALITY)
Ptm	3.95	mag	Photovisual magnitude (Note 2) (phot.mag;em.opt.V) (PHOT_PHG_V)
n_Ptm			[C] 'C' if Ptm is combined value with Ptg (meta.note) (NOTE)
q_Ptg	1		[0/1] Code for Ptg: 0 = measured, 1 = value inferred from Ptm and spectral type (meta.code.qual) (CODE_QUALITY)
Ptg	5.30	mag	Photographic magnitude (Note 2) (phot.mag;em.opt) (PHOT_PHG_MAG)
n_Ptg			[C] 'C' if Ptg is combined value for this entry and the following or preceding entry (meta.note) (NOTE)
SpT	Mb		Spectral type (spectral types P are generally nebulae) (src.spType) (SPECT_TYPE_GENERAL)
Int			[ 0-9B] Photographic intensity of spectrum (Note 3) (phot.count;em.opt) (PHOT_INTENSITY_ESTIMATED)
Rem	R		[DEGMR] Remarks, see note (Note 4)* (meta.note) (REMARKS)

Simbad	Simbad		ask the Simbad* data-base about this object (meta.ref.url) (DATA_LINK)*
_RA.icrs	03 19.5	"h:m:s"	⁽ⁱ⁾ Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra) (POS_EQ_RA_OTHER)
_DE.icrs	-21 45	"d:m:s"	⁽ⁱ⁾ Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec) (POS_EQ_DEC_OTHER)
Tycho	Tycho		Cross-identification with Tycho-2 (Cat. IV/25) (meta.ref.url) (DATA_LINK)

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