SDSS J144633.47+415046.7

All names: WD 1444+420, SDSS J144633.47+415046.7, Gaia EDR3 1489765962747406976, Gaia DR3 1489765962747406976, SDSS J144633.47+415046.6, Gaia DR2 1489765962747406976, SDSS J144633.48+415046.8, GALEX J144633.4+415046

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 46 33.47 (0.2) 14 46 33.47 14 46 33.47 (0.2) 14 46 33.47 (0.2) 14 46 33.47 14 46 33.07 14 46 33.48
Declination 41 50 46.72 (0.2) 41 50 46.76 41 50 46.72 (0.2) 41 50 46.74 (0.2) 41 50 46.76 41 50 40.56 41 50 46.76
Spectral type DA DA DA_auto DA DA DA+MS
Effective temperature [K] 10675.0 27815.0 (476) 28094.0 (548)
log(g) [cgs] 6.72 7.90 (0.1) 7.91 (0.1)
Mass [M] 0.174 0.596 (0.04)
log(Luminosity) [L]
Cooling age [Gyr]
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] 1.27 (0.2) 1.40 (0.3) 1.27 (0.2)
Distance [pc] 787.32 (126) 715.84 (133) 787.34 (126)
Composition H
Proper motion (right ascension) [mas/yr] -1.665815505 (0.2) -0.973426531 (0.4) -1.666 (0.2) 3.9
Proper motion (declination) [mas/yr] -0.969141781 (0.2) -1.095452901 (0.4) -0.969 (0.2) -7.1
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 18.97 (0.02) 18.97 (0.02) 18.96 (0.03) 18.96 18.99 (0.03)
g magnitude 19.14 (0.01) 19.14 (0.01) 19.14 (0.02) 19.14 19.15 (0.02)
r magnitude 19.59 (0.02) 19.59 (0.01) 19.59 (0.02) 19.59 19.62 (0.02)
i magnitude 19.87 (0.03) 19.87 (0.03) 19.87 (0.03) 19.86 19.89 (0.03)
z magnitude 19.87 (0.08) 19.86 (0.08) 19.85 (0.08) 19.84 19.87 (0.08)
G magnitude 19.34 (0.04) 19.39 19.34 (0.004)
BP magnitude 19.30 (0.04) 19.29
RP magnitude 19.37 (0.05) 19.42
Pan g magnitude 19.23 (0.02)
Pan r magnitude 19.59 (0.01)
Pan i magnitude 19.79 (0.01)
Pan z magnitude 19.84 (0.02)
Pan y magnitude 19.68 (0.04)
E(B-V) 0.022

* 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.