EC 20144-3402

All names: Gaia DR2 6699371150300682112, GALEX J201736.9-335317, Gaia DR3 6699371150300682112, TIC 471013463, TIC 471013518, Gaia EDR3 6699371150300682112, EC 20144-3402, EC20144-3402, TIC 1991490982, UCAC4 281-217079

Parameter Unit Gaia EDR3 Geier 2020 Stilism Simbad
Right ascension 20 17 36.98 (0.04) 20 17 36.90 20 17 36.97 (0.04)
Declination -33 53 17.53 (0.03) -33 53 16.37 -33 53 17.21 (0.03)
Spectral type sdB sdB
Effective temperature [K]
log(g) [cgs]
Mass [M☉]
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
Parallax [mas] 0.97 (0.04) 0.93 (0.08) 0.97 (0.04)
Distance [pc] 1025.75 (44) 1079.56 (89) 1025.75 (44)
Composition
Proper motion (right ascension) [mas/yr] 4.212 (0.04) 4.264 (0.1) 4.212 (0.04)
Proper motion (declination) [mas/yr] -19.648 (0.03) -19.661 (0.07) -19.648 (0.03)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 14.67
V magnitude 14.87
R magnitude 15.00 (0.07)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude
g magnitude
r magnitude
i magnitude
z magnitude
G magnitude 14.91 (0.003) 14.93 (0.0008) 14.91 (0.003)
BP magnitude 14.80 (0.003) 14.75 (0.009)
RP magnitude 15.13 (0.004) 15.13 (0.002)
Pan g magnitude
Pan r magnitude
Pan i magnitude 15.47 (0.005)
Pan z magnitude
Pan y magnitude
E(B-V) 0.066

* Constant surface field

Special notes:

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Absorption lines

Photometric filters

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ugriz

Photometric fit




The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.