BD+57 2421

Query : BD+57 2421

Basic data :
BD+57 2421 -- Star
Other object types: otypes_help 		* (BD,DO,...), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		21 54 16.9792048344 +58 33 20.538362160 (Optical) [ 0.0181 0.0178 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		21 52 40.2407623357 +58 19 07.517881323 [ 0.0181 0.0178 90 ]
Gal coord. (ep=J2000) : 		101.5332734603178 +03.2490558943552 [ 0.0181 0.0178 90 ]
Proper motions mas/yr : 		-0.930 -2.747 [0.024 0.021 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -5.32 [1.18] / z(spectroscopic) -0.000018 [0.000004] / cz -5.32 [1.18]
   (Opt) B 2018yCat.1345....0G
Parallaxes (mas): 		1.0472 [0.0206] A 2020yCat.1350....0G
Spectral type: 		M2II C 2018MNRAS.475.2003D
Fluxes (6) :
B 11.7 [~] E ~
V 9.49 [~] E ~
G 8.152190 [0.003025] C 2020yCat.1350....0G
J 4.943 [0.027] C 2003yCat.2246....0C
H 4.114 [0.206] D 2003yCat.2246....0C
K 3.776 [0.316] E 2003yCat.2246....0C
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Identifiers (12) :
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BD+57 2421 GSC 03980-01210 TIC 342870847 Gaia DR2 2202422262617913600
DO 40356 IRAS 21526+5819 TYC 3980-1210-1 Gaia DR3 2202422262617913600
GEN# +0.05702421 2MASS J21541698+5833208 UBV M 4021 Gaia DR1 2202422258315266176

References (6 between 1850 and 2026) (Total 6)
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 : 1    Distance : 2    Plx : 3    PM : 2    SpT : 3   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : BD+57 2421

Link by name to the catalogue in VizieR :

BD+57 2421 DO 40356 GSC 03980-01210 IRAS 21526+5819 2MASS J21541698+5833208
TYC 3980-1210-1 Gaia DR2 2202422262617913600 Gaia DR3 2202422262617913600 Gaia DR1 2202422258315266176

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