SDSS J162238.03+003937.2

All names: Gaia DR3 4407849722417993728, WD 1620+007, Gaia DR2 4407849722417993728, SDSS J162238.04+003937.2, SDSS J162238.04+003937.3, Gaia EDR3 4407849722417993728, SDSS J162238.03+003937.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 MWDD H Gaia DR2 Stilism Tremblay et al. 2011 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Kleinman et al. 2004 Vincent et al. 2023
Right ascension 16 22 38.03 (0.2) 16 22 38.04 16 22 38.03 (0.4) 16 22 38.04 (0.2) 16 22 38.04 16 22 38.02 16 22 38.04 16 22 38.04
Declination 00 39 37.51 (0.2) 00 39 37.27 00 39 37.50 (0.3) 00 39 37.27 (0.2) 00 39 37.23 00 39 31.68 00 39 37.25 00 39 37.26
Spectral type DA DA DA DA DA3.1 DA DA
Effective temperature [K] 12545.0 16290.0 (450) 16206.0 (261) 15804.0 (278) 16248.0 (257)
log(g) [cgs] 7.79 7.84 (0.09) 7.74 (0.06) 7.76 (0.06) 7.76 (0.06)
Mass [M] 0.491 0.53 (0.04) 0.499 (0.03)
log(Luminosity) [L]
Cooling age [Gyr] 0.2497 0.1259
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] 2.52 (0.3) 2.53 (0.4) 2.52 (0.3)
Distance [pc] 397.17 (42) 395.60 (64) 397.17 (42)
Composition H H
Proper motion (right ascension) [mas/yr] -11.1474585 (0.4) -10.78358255 (0.8) -11.147 (0.4) 1.0
Proper motion (declination) [mas/yr] 14.6095889 (0.3) 14.86612267 (0.5) 14.61 (0.3) 11.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.54 (0.03) 19.54 (0.03) 19.56 (0.03) 19.57 19.55 (0.03) 19.57 (0.03)
g magnitude 19.15 (0.01) 19.15 (0.01) 19.22 (0.01) 19.22 19.21 (0.01) 19.22 (0.01)
r magnitude 19.43 (0.02) 19.43 (0.02) 19.45 (0.02) 19.44 19.43 (0.02) 19.44 (0.02)
i magnitude 19.66 (0.03) 19.66 (0.03) 19.62 (0.03) 19.62 19.63 (0.02) 19.62 (0.03)
z magnitude 20.04 (0.1) 20.04 (0.1) 19.85 (0.08) 19.86 19.88 (0.08) 19.86 (0.09)
G magnitude 19.31 (0.02) 19.34 19.31 (0.004)
BP magnitude 19.31 (0.02) 19.29
RP magnitude 19.39 (0.06) 19.41
Pan g magnitude 19.22 (0.01)
Pan r magnitude 19.45 (0.007)
Pan i magnitude 19.67 (0.008)
Pan z magnitude 19.90 (0.02)
Pan y magnitude 19.95 (0.07)
E(B-V) 0.081

* 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.