SDSS J142422.21+415337.6

All names: SDSS J142422.21+415337.6, Gaia DR3 1492018174877591168, WD 1422+421, SDSS J142422.21+415337.5, Gaia EDR3 1492018174877591168, GALEX J142422.2+415337, Gaia DR2 1492018174877591168

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 24 22.22 (0.2) 14 24 22.21 14 24 22.22 (0.3) 14 24 22.21 (0.2) 14 24 22.21 14 24 21.53 14 24 22.21
Declination 41 53 37.37 (0.2) 41 53 37.59 41 53 37.37 (0.2) 41 53 37.64 (0.2) 41 53 37.61 41 53 33.72 41 53 37.61
Spectral type DA DA DA_auto DA DA DA
Effective temperature [K] 15948.0 16227.0 (439) 16353.0 (446)
log(g) [cgs] 7.76 7.90 (0.1) 7.91 (0.1)
Mass [M☉] 0.487 0.569 (0.07)
log(Luminosity) [L☉]
Cooling age [Gyr] 0.1071
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] 2.07 (0.3) 1.69 (0.4) 2.07 (0.3)
Distance [pc] 482.88 (64) 591.75 (135) 482.88 (64)
Composition H
Proper motion (right ascension) [mas/yr] 10.54691057 (0.2) 10.13964538 (0.4) 10.547 (0.2) 18.3
Proper motion (declination) [mas/yr] -17.19770704 (0.3) -16.51017501 (0.4) -17.198 (0.3) -18.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.80 (0.03) 19.80 (0.03) 19.83 (0.03) 19.83 19.80 (0.03)
g magnitude 19.57 (0.01) 19.57 (0.01) 19.58 (0.02) 19.58 19.56 (0.02)
r magnitude 19.85 (0.02) 19.85 (0.02) 19.85 (0.02) 19.85 19.84 (0.02)
i magnitude 20.09 (0.03) 20.09 (0.03) 20.12 (0.03) 20.11 20.10 (0.03)
z magnitude 20.80 (0.2) 20.80 (0.2) 20.78 (0.2) 20.77 20.75 (0.2)
G magnitude 19.72 (0.04) 19.76 19.72 (0.004)
BP magnitude 19.77 (0.04) 19.69
RP magnitude 19.89 (0.08) 19.82
Pan g magnitude 19.58 (0.004)
Pan r magnitude 19.87 (0.01)
Pan i magnitude 20.15 (0.02)
Pan z magnitude 20.44 (0.03)
Pan y magnitude 20.23 (0.2)
E(B-V) 0.021

* 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.