BD+21 4638

Query : BD+21 4638

Basic data :
BD+21 4638 -- Eclipsing Binary Candidate
Other object types: otypes_help 		* (BD,AG,...), EB? (2005MNRAS), V* ([KLC2005]), NIR (2MASS)
ICRS coord. (ep=J2000) : 		21 52 43.6964801736 +21 44 52.895491476 (Optical) [ 0.0194 0.0168 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		21 50 24.0060592804 +21 30 45.399386767 [ 0.0194 0.0168 90 ]
Gal coord. (ep=J2000) : 		076.9438777229460 -24.7620951161281 [ 0.0194 0.0168 90 ]
Proper motions mas/yr : 		-0.466 -27.537 [0.023 0.021 90] A 2020yCat.1350....0G
Parallaxes (mas): 		6.4429 [0.0235] A 2020yCat.1350....0G
Spectral type: 		F2 D ~
Fluxes (6) :
B 8.96 [0.02] D 2000A&A...355L..27H
V 8.57 [0.01] D 2000A&A...355L..27H
G 8.447182 [0.002769] C 2020yCat.1350....0G
J 7.736 [0.026] C 2003yCat.2246....0C
H 7.554 [0.033] C 2003yCat.2246....0C
K 7.509 [0.020] C 2003yCat.2246....0C
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Identifiers (14) :
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BD+21 4638 2MASS J21524369+2144527 TYC 1691-1257-1 Gaia DR3 1793160945003919104
AG+21 2428 PPM 113703 YZ 21 8437 Gaia DR1 1793160940707923968
GPM 328.182057+21.748094 SAO 90068 [KLC2005] 73
GSC 01691-01257 TIC 258020812 Gaia DR2 1793160945003919104

References (5 between 1850 and 2026) (Total 5)
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

Distance : 2    Var : 1    Plx : 3    PM : 4   

   

External archives :

Link by name to the catalogue in VizieR :

BD+21 4638 AG+21 2428 GSC 01691-01257 2MASS J21524369+2144527 PPM 113703
SAO 90068 TYC 1691-1257-1 Gaia DR2 1793160945003919104 Gaia DR3 1793160945003919104 Gaia DR1 1793160940707923968

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