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J/ApJ/861/49/table2 ALFALFA extragalactic HI source catalog (Haynes+, 2018)
ALFALFA extragalactic HI source catalog; corrected version (August 2019)
spectrum/fits
spectrum
(31502 rows)
  recno=10397
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200010 04 04.600 "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+31 11 06.00 "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)
_RAB195010 01 10.942 "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+31 25 39.32 "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)
_Glon196.323383 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+53.450876 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)
10397recno 10397  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

AGC005419   [1/749512] UGC/AGC number (Note 1)   (meta.id;meta.main)
NameN3106  Common name of the optical counterpart (meta.id)
RAJ200010 04 04.6 "h:m:s" (i) [0/23] HI centroid hour of RA (J2000) (pos.eq.ra;meta.main)
DEJ2000+31 11 06 "d:m:s" (i) HI centroid degree of Dec (J2000) (pos.eq.dec;meta.main)
RAO10 04 05.2 "h:m:s" Optical counterpart hour of RA (J2000) (meta.id.assoc;pos.eq.ra)
DEO+31 11 08 "d:m:s" Optical counterpart degree of Dec (J2000) (meta.id.assoc;pos.eq.dec)
Vhel 6204 km/s [-430/17823] Heliocentric velocity of the HI profile midpoint (spect.dopplerVeloc;em.line.HI)
W50217 km/s [9/885] Observed velocity width at 50% of peak on either side (spect.line.width)
e_W50 6 km/s [1/296] Uncertainty in W50 (stat.error)
W20247 km/s [0/896] Observed velocity width at 20% of peak on either side (spect.line.width)
HIflux 5.57 Jy.km/s [-7.7/999.9] HI line flux density (phot.flux)
e_HIflux 0.10 Jy.km/s [0.02/1.2] Uncertainty in HIflux (stat.error)
SNR 31.0   [1.2/964] Ratio of peak flux to rms noise (instr.det.noise)
rms 2.73 mJy [1.2/18] The RMS noise in the extracted spectrum at 10 km/s resolution (instr.det.noise)
Dist 92.6 Mpc [0.3/259.6] Adopted distance, where applicable (pos.distance;pos.heliocentric)
e_Dist 2.3 Mpc [0/31] Uncertainty in Dist (stat.error)
logMHI10.05 [Msun] [3.7/11] log HI mass where distance has been adopted (phys.mass)
e_logMHI 0.05 [Msun] [0.04/1.2] Uncertainty in logMHI (stat.error)
HI1   [1/2] HI source code (Note 2)   (meta.code)

spclick to plot  Interactive plot of the spectrum (meta.ref.url)
fitsA005419.fits  Download the spectrum FITS file (meta.ref.url)
SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
NEDNED  ask the NED data-base about this object (meta.ref.url)
LEDALEDA  ask the LEDA data-base about this object (meta.ref.url)
  
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