BD-21 4897

Query : BD-21 4897

Basic data :
BD-21 4897 -- Red Supergiant Candidate
Other object types: otypes_help 		* (BD,CPD,...), ** (CCDM,IDS,...), IR (IRAS,IRC), s?r (2023A&A), LP? (2022yCat), NIR (2MASS)
ICRS coord. (ep=J2000) : 		18 12 20.7023385888 -21 06 30.857925168 (Optical) [ 0.0357 0.0305 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		18 09 21.1439937729 -21 07 18.187258674 [ 0.0357 0.0305 90 ]
Gal coord. (ep=J2000) : 		009.8010628923746 -01.3339110626800 [ 0.0357 0.0305 90 ]
Proper motions mas/yr : 		0.360 -1.715 [0.044 0.034 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -4.25 [0.45] / z(spectroscopic) -0.000014 [0.000002] / cz -4.25 [0.45]
   (Opt) A 2022yCat.1355....0G
Parallaxes (mas): 		0.6425 [0.0441] A 2020yCat.1350....0G
Spectral type: 		M1 D 1975AJ.....80.1011H
Fluxes (9) :
U 13.38 [~] C 2002yCat.2237....0D
B 12.17 [~] C 2002yCat.2237....0D
V 9.78 [~] C 2002yCat.2237....0D
R 7.07 [~] C 2002yCat.2237....0D
G 7.646924 [0.003772] C 2020yCat.1350....0G
I 5.01 [~] C 2002yCat.2237....0D
J 3.78 [~] C 2002yCat.2237....0D
H 2.50 [~] C 2002yCat.2237....0D
K 2.03 [~] C 2002yCat.2237....0D
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 72 Display criteria :

Identifiers (17) :
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BD-21 4897 IDS 18064-2108 A PPM 733772 Gaia DR2 4093888820012699776
CCDM J18123-2107A IRAS 18093-2107 TIC 116465793 Gaia DR3 4093888820012699776
CPD-21 6728 IRC -20445 TYC 6276-2108-1
GEN# -0.02104897 JP11 306 UCAC2 23446273
GSC 06276-02108 2MASS J18122069-2106308 WDS J18124-2107A

References (33 between 1850 and 2026) (Total 33)
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 : 2    Distance : 2    Plx : 2    PM : 2    SpT : 6   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : BD-21 4897

Link by name to the catalogue in VizieR :

BD-21 4897 CCDM J18123-2107A CPD-21 6728 GSC 06276-02108 IRAS 18093-2107
IRC -20445 2MASS J18122069-2106308 PPM 733772 TYC 6276-2108-1 UCAC2 23446273
WDS J18124-2107A Gaia DR2 4093888820012699776 Gaia DR3 4093888820012699776

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