SDSS J214429.46+040231.0

All names: GALEX J214429.4+040230, Gaia DR2 2695295941942097152, Gaia DR3 2695295941942097152, Gaia EDR3 2695295941942097152, SDSS J214429.46+040231.02, SDSS J214429.46+040231.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 21 44 29.45 (0.7) 21 44 29.46 21 44 29.45 (1) 21 44 29.47 (0.7)
Declination 04 02 31.01 (0.8) 04 02 31.02 04 02 31.01 (2) 04 02 31.12 (0.8)
Spectral type DA DA DA DA+MS
Effective temperature [K] 7432.0 9215.0 (214)
log(g) [cgs] 7.00 9.45 (0.2)
Mass [M] 0.2 1.304 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.5264
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 1.64 (0.7) 2.00 (1) 1.64 (0.7)
Distance [pc] 609.37 (276) 501.13 (258) 609.38 (276)
Composition H
Proper motion (right ascension) [mas/yr] -18.74333768 (0.9) -15.44430855 (3) -18.743 (0.9)
Proper motion (declination) [mas/yr] -7.235099489 (1) -5.207159354 (3) -7.235 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.16 (0.1) 21.16 (0.1) 21.16 (0.1)
g magnitude 20.65 (0.02) 20.68 (0.03) 20.68 (0.03)
r magnitude 20.66 (0.03) 20.69 (0.03) 20.69 (0.03)
i magnitude 20.67 (0.05) 20.68 (0.05) 20.68 (0.05)
z magnitude 20.36 (0.2) 20.38 (0.2) 20.38 (0.2)
G magnitude 20.55 (0.09) 20.65 20.55 (0.006)
BP magnitude 20.65 (0.09) 21.00
RP magnitude 20.37 (0.1) 19.88
Pan g magnitude 20.63 (0.02)
Pan r magnitude 20.59 (0.02)
Pan i magnitude 20.63 (0.02)
Pan z magnitude 20.70 (0.07)
Pan y magnitude
E(B-V) 0.057

* Constant surface field

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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.