HD 20421

Query : HD 20421

Basic data :
HD 20421 -- Emission-line Star
Other object types: otypes_help 		* (2022AJ,HD,...), Em* (2023ApJS), UV (TD1), NIR (2MASS), Opt (LAMOST)
ICRS coord. (ep=J2000) : 		03 17 11.8527024960 +01 33 29.022121692 (Optical) [ 0.0246 0.0238 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		03 14 36.7157131129 +01 22 31.092674531 [ 0.0246 0.0238 90 ]
Gal coord. (ep=J2000) : 		179.5735992484645 -44.6935717707551 [ 0.0246 0.0238 90 ]
Proper motions mas/yr : 		30.352 0.764 [0.029 0.029 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 33.418900 [0.236333] / z(spectroscopic) 0.000111 [0.000001] / cz 33.42 [0.24]
   (NIR) A 2020AJ....160..120J
Parallaxes (mas): 		5.5877 [0.0357] A 2020yCat.1350....0G
Spectral type: 		A4III/IV D 1999MSS...C05....0H
Fluxes (6) :
B 7.97 [~] E ~
V 7.78 [~] E ~
G 7.714435 [0.002800] C 2020yCat.1350....0G
J 7.216 [0.026] C 2003yCat.2246....0C
H 7.148 [0.040] C 2003yCat.2246....0C
K 7.077 [0.021] C 2003yCat.2246....0C
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Identifiers (22) :
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HD 20421 HIC 15284 SKY# 4933 YZ 1 704
AG+01 338 HIP 15284 TD1 2055 YZ 0 2764
AP J03171185+0133289 LAMOST J031711.84+013329.2 TIC 293145074 Gaia DR2 3268502792662830080
BD+01 574 2MASS J03171185+0133289 TYC 56-29-1 Gaia DR3 3268502792662830080
GEN# +1.00020421 PPM 146411 UBV M 9432
GSC 00056-00029 SAO 111098 uvby98 100020421

References (26 between 1850 and 2026) (Total 26)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 3    Distance : 2    Rot : 1    Fe/H : 4    Plx : 4    PM : 4    SpT : 3   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Link by name to the catalogue in VizieR :

HD 20421 AG+01 338 AP J03171185+0133289 BD+01 574 GSC 00056-00029
HIC 15284 HIP 15284 2MASS J03171185+0133289 PPM 146411 SAO 111098
TD1 2055 TYC 56-29-1 uvby98 100020421 Gaia DR2 3268502792662830080 Gaia DR3 3268502792662830080

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