BD-21 4940

Query : BD-21 4940

Basic data :
BD-21 4940 -- Long-Period Variable Candidate
Other object types: otypes_help 		* (BD,PPM,...), LP? (2022yCat), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		18 18 22.3287618000 -21 34 08.877765396 (Optical) [ 0.0385 0.0360 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		18 15 22.1848815021 -21 35 22.583396003 [ 0.0385 0.0360 90 ]
Gal coord. (ep=J2000) : 		010.0639269820519 -02.7874706420738 [ 0.0385 0.0360 90 ]
Proper motions mas/yr : 		1.458 0.012 [0.043 0.033 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 6.61 [0.29] / z(spectroscopic) 0.000022 [0.000001] / cz 6.61 [0.29]
   (Opt) A 2022yCat.1355....0G
Parallaxes (mas): 		0.7769 [0.0445] A 2020yCat.1350....0G
Spectral type: 		M6 D ~
Fluxes (6) :
B 11.81 [0.17] D 2000A&A...355L..27H
V 10.65 [0.08] D 2000A&A...355L..27H
G 8.414094 [0.004501] C 2020yCat.1350....0G
J 4.680 [0.204] D 2003yCat.2246....0C
H 3.524 [0.228] D 2003yCat.2246....0C
K 3.189 [0.304] D 2003yCat.2246....0C
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Identifiers (8) :
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BD-21 4940 2MASS J18182234-2134086 TIC 244794700 Gaia DR2 4090853652555267584
IRAS 18153-2135 PPM 733843 TYC 6277-1643-1 Gaia DR3 4090853652555267584

References (4 between 1850 and 2026) (Total 4)
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 : 3    Plx : 2    PM : 2   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : BD-21 4940

Link by name to the catalogue in VizieR :

BD-21 4940 IRAS 18153-2135 2MASS J18182234-2134086 PPM 733843 TYC 6277-1643-1
Gaia DR2 4090853652555267584 Gaia DR3 4090853652555267584

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